eans for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling (E21B47/12)

E   Fixed constructions(158735)
E21B47/12                     eans for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling(707)

Autonomous modification of the frequency of rotation of the site of the drill string // 2642690
FIELD: mining.SUBSTANCE: method of operation of drill string includes a standalone modification of frequency of rotation located in the borehole of the plot of the drill string in borehole hosted on other sites the drill string, each of these sites contains many sections of drill pipe. The drill string that has altered the frequency of rotation, can represent the lower section of the drill string, located between the end of the drill string, located on the bottom and curved stretch of wells in which the drill string. The lower stretch of the drill string can have increased frequency of rotation relative to the rotational speed of the Drill string plot located within curved plot hole. Autonomous modification of frequency of rotation can be implemented by attaching one or more gears to the drill string, and gear specified device made with the ability to switch between release mode, in which the specified device transmits the torque and the rotation of the drill string without modification, and the clutch, which specified the device transmits the torque and the rotation of the entire length of the drill string with a modified rotational speed and torque. Selective switching gear shifting devices located in the well can be carried out from the ground.EFFECT: stable rotation speed of each of the sections of the drill string.22 cl, 9 dwg

ethods and systems for adjusting technological process of well logging // 2642602
FIELD: oil and gas industry.SUBSTANCE: method comprises measuring formation characteristics using a logging device located in the wellbore, collecting measurement data corresponding to the measured formation characteristics, generating a visual representation of the formation using the collected measurement data, setting the control parameter of the well logging of the logging device based on at least some measurement data and the mechanism of adaptive learning within the logging device, and selecting updates for the adaptive learning mechanism at least partially on the basis of the visual representation.EFFECT: increasing the efficiency of managing the working process of the well logging.28 cl, 12 dwg

Control of wellbore drilling complexes // 2640607
FIELD: oil and gas industry.SUBSTANCE: method includes determination of nominal model of downhole drilling dynamics based on sensor measurements from the downhole drilling equipment, determination of uncertainty for the nominal model of downhole drilling dynamics, determination of set of models based on uncertainty of the nominal model of downhole drilling dynamics which deviate from the nominal model of drilling dynamics, and creation of a virtual controller for downhole drilling equipment based on the nominal model and a set of models that deviate from the nominal model.EFFECT: increased control accuracy of wellbore trajectory.23 cl, 10 dwg

Electromagnetic well flaw detector (versions) // 2639270
FIELD: measuring equipment.SUBSTANCE: electromagnetic well flaw detector comprises a generator inductance coils, measuring inductance coils, and additional measuring inductance coils spaced apart from the generator coil, an electronics unit, wherein the additional measuring inductance coils are removed from the generator inductance coil at a distance providing the optimum working zone of influence of the generator inductance coil on them, which is selected from the condition from 0.01 to 2L, and are spaced apart along the device axis at a distance selected from the conditions of 0.01 to 2L, where L is the length of the main probe. Moreover, each additional measuring inductance coil in the amount of one or more pieces is mounted on a separate magnetic core.EFFECT: improving the resolving power of a flaw detector, increasing the sensitivity to small-size flaws and determining their accuracy due to selecting the optimal position distance of the measuring coil from the generator coil to provide the working zone of influence of the generator coil to the measuring coil.2 cl, 3 dwg
ethod for delivery of geophysical cable, including optical cable into horizontal well // 2637688
FIELD: oil and gas industry.SUBSTANCE: method includes operations for providing the coiled tubing string with cable along its entire length, providing the coiled tubing string ends with controlled anchor with a rupture element or coupling with standardised release force, a connecting coiled tubing string with anchor, running the coiled tubing string with the cable into the well to a target elevation, actuation of anchor, pulling the coiled tubing string from the well with breakage of said element or disconnection of said coupling. In this case, the well remains equipped with a geophysical cable, and the coiled tubing string can be used for other purposes. Due to disruption of anchor when the cable is tensioned, it is possible to extract it at the end of examination or monitoring.EFFECT: possibility to equip horizontal well with geophysical cable.4 cl
Fiber-optic probing of drilling string bottom hole assembly // 2636989
FIELD: mining.SUBSTANCE: control system of bottom hole assembly of the drilling string comprises bottom hole assembly comprising one or more drill pipes and a drill bit connected to one or more drill pipes, and a system of sensors for monitoring the BHA, containing: one or more sections of optical fiber, a signal source module comprising an optical signal source arranged to emit an optical signal into one or more optical fiber segments, a signal detection module comprising an optical signal receiver arranged to detect an optical signal, a signal processing module which contains an electronic processor which is directed from the signal source module along one or more sections of optical fiber and which is capable of communicating with the detection module, and an operator's console or interface configured to communicate with the signal processing module. At that the signal processing module is programmed so that during the operation of the system: is determines the measurement data based on detected optical signal of thermomechanical properties at a plurality of different locations on one or more drill pipes, while the BHA is used to drill a well and send a signal to the operator's console or interface when the measurement data exceeds the threshold value.EFFECT: maintenance of downhole tools within safe operating limits.27 cl, 8 dwg

ethod and device for providing contact of power points with casing column in multi-electode well probe of electrical logging through metallic column // 2630280
FIELD: mining engineering.SUBSTANCE: invention is intended to provide contact of power points with casing column in multi-electode well probe of electrical logging through metallic column under conditions of considerable corrosion of the casing wall and the presence of cement, paraffins and resins thereon. According to the claimed proposal, the electrodes are individually exposed to impact of periodically accumulated potential energy of springs that is produced by screw pairs rotation and by abrupt (shock) release of energy when crests of the screw pairs leave helical interaction. The device for implementing the method is a drive structure having an output shaft that drives screw pairs. The screw pairs with direct rotation open the centraliaers and press elastically the power points to the casing wall, by means of periodic impact produce exposure to electrodes rigidly connected with the power points. At that, the power points penetrate into the casing wall. The shock impact occurs when the screw and the nut are untightened from the screw interaction that is pressed by a power spring. With the reverse rotation of the shaft, the helical interaction in the screw pairs is restored, the electrodes and centralisers return to their initial position, and then the helical crests again leave the screw interaction, but from the other ends. This ensures automatic positioning of the drive in extreme positions.EFFECT: increasing the speed and quality of logging, simplifying the design.10 cl, 4 dwg

Data transmitting system along drill pipe and corresponding method // 2629502
FIELD: drilling of soil or rock.SUBSTANCE: invention relates to communication means in drill string. In particular, disclosed is system for providing communication in drill pipe, containing: first drilling pipe; insulated pipe located inside first drilling pipe and, generally, concentric to it; male insert located inside first drilling pipe first end; female insert located inside first drilling pipe second end; conductor, which is electrically connected with male insert and female insert, wherein conductor passes along first drilling pipe entire length. At that, conductor provides possibility of electrical signals transmitting from first drilling pipe first end to first drilling pipe second end. At that, male insert comprises housing; first insulating ring arranged around housing; second insulating ring arranged around housing; and pin passing through insulating ring, wherein pin is electrically connected with conductor. Besides, female insert comprises: housing; insulating ring arranged around housing; and enveloping conducting ring arranged in groove made in insulating ring, wherein enveloping conducting ring is electrically connected with conductor.EFFECT: technical result is providing reliable communication channel to increase data collection speed in inclined boring.18 cl, 12 dwg

Downhole electrical connector // 2627782
FIELD: mining.SUBSTANCE: proposed the electrical connector unit, installed in the borehole and containing: the upper longitudinal element with the electrical conductor, the lower longitudinal element, containing the electrical conductor, the telescopic electrically conductive unit and the electrical contact element, disposed around the end part of the lower longitudinal element electrical conductor and configured with ability of mobile contact to it. In this case, the telescopic electrically conductive unit contains the longitudinal receiving part at the end part of the upper longitudinal element electrical conductor. The longitudinal receiving part is located around the end part of the electrical conductor of the lower longitudinal element. The indicated contact element is configured with ability of mobile contact to the inner surface of the longitudinal receiving part of the upper longitudinal member.EFFECT: provision of electricity or signals reliable transmission with possible changes of the cable length.12 cl 9 dwg

Systems and methods for optimisation of the borehole creation in the shale formation // 2622280
FIELD: oil and gas industry.SUBSTANCE: the method contains determination of the first planning location (107) of stimulation within the formation at least partially based on the specified model of the formation. The borehole in the formation may be drilled using the downhole tool (204) with blocks (206) LWD / MWD. To update the formation model the measurements in the real time mode are used and determining the alternate location (301) of stimulation. IGV (inlet guide vane) equipment is isolated from the equipment (205) of stimulation by installing the disposable balloon at the installation location of the balloon between the block LWD and stimulation equipment. The second stimulation location can be determined based on the data obtained from the IGV after the formation inflow intensification in the alternative location of the stimulation.EFFECT: reduced time of the transaction.15 cl, 5 dwg

Current monitoring and control of directed drilling operations and their simulation // 2617817
FIELD: mining.SUBSTANCE: invention relates to the monitoring and control of the directed drilling operations. The method includes data reception via wireless communication using the mobile communication device, wherein data including the process parameters of the directed drilling operations in bottomhole at the drilling site. Wherein the mobile communication device is a portable mobile communication device and data presentation on screen of the graphical user interface in the mobile communication device, comprising displaying of the graphical representation of the component in the bottomhole installed as part of a drilling string, displaying computer graphics of internal component movement in the well bottomhole.EFFECT: invention increases capacity and efficiency of the directed drilling.39 cl, 18 dwg

Toroidal sections for measuring rotation frequency per minute // 2616197
FIELD: measuring equipment.SUBSTANCE: group of inventions relates to the means for measuring drilling parameters and transmitting the measured data in the downhole during the drilling process. In particular, a telemetry system is provided for determining parameters during drilling, comprising a lower toroid containing a lower toroid winding and further configured to receive a signal from one or more sensors, an upper toroid, wherein the upper toroid comprises an upper toroid winding, and a magnet located along the rotating element inside one of the lower or upper toroid. Herewith one of the upper or lower toroid is further configured to engage with the rotating element. The lower toroid and the upper toroid are located in such a manner that the signal from the lower toroid is induced in the upper toroid.EFFECT: lower toroid winding is nonuniform, so that the signal induced in the upper toroid, indicates the shaft rotation speed of the hydraulic downhole motor.20 cl, 8 dwg

Communication system for extended reach wells // 2612762
FIELD: mining.SUBSTANCE: invention relates to means of communication between the surface and well. In particular, disclosed is a downhole communication system for an extended reach borehole, including: an operator unit, operatively arranged to enable at least one of remote monitoring or control of one or more device(s) disposed in the extended reach borehole; plurality of first communicators disposed in a highly deviated extension of the borehole and configured to receive or transmit a signal at least one of from or to the at least one of two or more device(s); plurality of second communicators spatially remoted from the borehole. Each one of the plurality of first communicators is coupled with appropriate one of the plurality of second communicators to form a plurality of pairs, so that each pair of the plurality of pairs is located away from the other pairs of the plurality of pairs. Each pair of the first communicator and the second communicator is located substantially in a vertically extending plane, defined along a length of the highly deviated extension. Second communicator is operatively in signal communication with both the first communicator and the operator unit for enabling signal communication between the first communicator and the operator unit via the second communicator. Second communicator of each pair is located within a triangular prism-shaped volume, wherein a base of the triangular prism-shaped volume is defined by a surface, in which the borehole is formed with an apex of the triangular prism-shaped volume, defined by a line passing along a length of the highly deviated extension of the well or within cone-shaped volume, wherein a base of the cone-shaped volume defined by a surface, in which the borehole is formed, and an apex of the cone-shaped volume is defined by a location of the first communicator. At least one pair of communicators is configured for selective connection and operation with one of two or more devices, disposed in the extended reach borehole.EFFECT: technical result is reliable and effective communication between the operator and devices in the well.19 cl, 5 dwg

Turbine for transmission of electric data // 2608429
FIELD: electricity.SUBSTANCE: invention relates to turbine for transmission of electric data from one end of turbine to other end. Turbine (100) has first end (101) and second end (103). Ends (101) and (103) are opposite to each other. Turbine (100) comprises housing (104), shaft (102) located in centre of housing (104), engine (106), having a plurality of rotors, stators and bearings arranged between shaft (102) and housing (104), at least one non-conducting insulator, providing electrical insulation of shaft (102) and housing (104) from each other. Engine (106) is located between first end (101) and second end (103) of turbine (100). Non-conducting insulator is located between housing (104) and a plurality of rotors, stators and bearings or is located between shaft (102) and a plurality of rotors, stators and bearings.EFFECT: invention is aimed providing transmission of electric data signals.20 cl, 12 dwg

ethod of well imaging // 2607669
FIELD: mining.SUBSTANCE: present invention relates to well enviroment imaging method using well visualization system. Disclosed is well enviroment imaging method using well imaging system, which contains following stages: movement of downhole tool into borehole environment; reading during movement of one or more physical parameters using one or more sensors, generating sensors signals, reflecting one or more physical parameters in borehole environment; processing of sensors signals for providing of sensors data; temporary storage in well data buffering device of buffered sensors data received with preset sampling frequency; transmission of first part of sensor data into wellhead data processing device with specified first transmission rate, which is equal or less to said sampling frequency; processing first part of sensors data using wellhead data processing device and well enviroment imaging based on first part of sensors data; sending control signal from wellhead data processing device to downhole data processing device based on event, for example, abrupt change of one or more physical parameters during well enviroment imaging, with changing so transmission speed from first transmission rate to second transmission rate; transmission of at least partially, second part of data stored in downhole data buffering device to wellhead data processing device; and well enviroment imaging based on first part of sensors data and second part of sensors data, chronologically before and after said event, without reversing of downhole tool movement.EFFECT: technical result is optimizing data transmission under various operating conditions.9 cl, 10 dwg

Telemetering equipment for systems with multiphase electric motor // 2606034
FIELD: engines and pumps.SUBSTANCE: group of inventions relates to a system of an electric submersible pump. System comprises a multiphase electric motor functionally connected with a hydraulic pump, herewith the motor contains a star connection point; a telemetry circuit functionally connected to the star connection point, herewith the telemetry circuit generates AC telemetry signals; a multiphase power cable functionally connected with the motor; and a tuning filter functionally connected with the multiphase power cable, herewith the tuning filter passes and amplifies the alternating current telemetry signals generated by the telemetry circuit. Telemetry signals of alternating current are transmitted to the multiphase power cable through the star connection point.EFFECT: proposed is a telemetering equipment for systems with a multiphase electric motor.20 cl, 22 dwg

Improved drilling column communication system, components and methods // 2605105
FIELD: mining.SUBSTANCE: invention relates to means of downhole tool communication with ground equipment. Disclosed is drilling column communication system, wherein drill string is used as electrical conductor, which provides communication between them. At that, system comprises: transceiver at wellhead, located on drilling rig, and downhole transceiver, located in working face area near the underground tool, including downhole transmitter, which transmits signal from the well bottom to drill string for transmission to receiver at the wellhead, which forms a part of transceiver at the well head. At that, transceiver at the wellhead and bottom-hole transceiver are made with possibility of joint operation for automatic modification of at least one working parameter of signal transmission from well bottom at least partially on the basis of signal quality deterioration from the well bottom detected by transceiver at the wellhead. At that, at least one of the following: downhole transceiver and transceiver at the wellhead comprise noise scanner for scanning noise of available signal transmission frequencies from the well bottom, so that less noisy transmission frequency is established, and wherein noise scanner includes filters unit with multiple bandpass filters for determination of the least noisy transmission frequency.EFFECT: higher reliability and accuracy of downhole device location determining.61 cl, 21 dwg

Transmitting petroleum well data from mobile drilling rig // 2604343
FIELD: oil industry.SUBSTANCE: invention relates to petroleum well data collected on a mobile drilling rig. Rig computer system at a mobile drilling rig receives a request for petroleum well data from a first real-time operations centre (ROC) computer system at a ROC over a network. Rig computer system has previously transmitted requested data to second ROC computer system over network. Rig computer system determines that first and second ROC computer systems are connected by a network of greater bandwidth than network that connects rig computer system and first ROC computer system. Rig computer system responds to first ROC computer system by re-directing first ROC computer system to second ROC computer system rather than by transmitting petroleum well data to first ROC computer system.EFFECT: technical result is increasing system throughput.19 cl, 4 dwg

ethod of determining efficiency of formation hydraulic fracturing of well // 2604247
FIELD: oil industry.SUBSTANCE: invention relates to development of oil deposits and can be used for geotechnical activities to increase oil production. Method consists in fact that before FHF preliminary complex geophysical survey of well (GSW) is performed and fluid of different mineral content alternately is pumped into perforation intervals with execution of GSW after each pumping. Then FHF is made with proppant and fluid with different mineral content is pumped again with execution of GSW after each pumping. Then comparative analysis of GSW before and after FHF is made, based on readings of pulsed neutron logging. Geophysical survey of well include gamma-ray logging, thermometry method, location of couplings and pulsed neutron logging.EFFECT: technical result consists in determination of parameters of permeable areas of perforated intervals of well before and after formation hydraulic fracturing, analysis results of which show well productivity.1 cl

Device for data transmission during drilling // 2602631
FIELD: geophysics.SUBSTANCE: invention relates to field geophysics and can be used for transmitting bottom-hole information in well drilling. Device for transmitting information during drilling comprising power supply unit connected to a source of high-voltage pulses, dielectric insert, controlled switch, the output of which is connected to the string of drill pipes. Device also has a modulator vibrations, installed at the bottom hole, in the form of fluid oscillator, outlet nozzle is connected with bellows, that is connected with controlled switch, one output of which is connected to the turbo-drill on the bottom of the well, and the second - with flow of drill pipes. Device also comprises a resistor, suppression filter, receiving device, installed at the wellhead, the resistor is connected to the output of the power supply unit, the second output of which is connected to the bed, suppression filter is connected in parallel with resistor, and the input of the receiving device is connected to the output of the barrier filter.EFFECT: longer range and reliability of transmitting information in drilling due to improvement of its design.1 cl, 1 dwg

ethod and tool for detection of casing pipes // 2591861
FIELD: mining.SUBSTANCE: invention relates to means for directional drilling wells, in particular to electromagnetic logging devices in parallel to well drilling. Disclosed is method of field geophysical survey for drilling of second borehole in certain position relative to first shaft in formation with high electric resistance, which includes: obtaining results of measuring resistance of formation of first shaft; determining expected level of ambient signal for second borehole in certain position relative to first shaft, at least partially based on measurement results of resistance of formation; comparing level of signal detection for first shaft with expected level of ambient signal to determine range of permissible values of distance transmitter-receiver and working frequency, which exceeds the expected level of ambient signal level of signal detection for first shaft; selection of, at least, one of values of distance transmitter-receiver and operating frequency of certain range and providing in assembly of drilling tubes of second borehole logging instrument with inclined antennae with specified distance between antennae and/or operating frequency. Invention also covers tool to implement this method.EFFECT: high quality of signals when determining location of second borehole relative to first, due to optimisation of distance transmitter-receiver and operating frequency of logging instrument.19 cl, 25 dwg

ethod of non-contact well telemetry and telemetric system for its implementation // 2584168
FIELD: mining.SUBSTANCE: invention relates to methods and systems of well telemetry between ground control unit and downhole device arranged in the well shaft passing through geological formation. Disclosed is a telemetry system, containing ground-based control unit, downhole device with mounting seat on the top end and the transceiver on logging cable with possibility to dock with free end into a mounting seat of the downhole device. Transceiver is equipped with a small-sized acoustic receiver-transmitter and a complex downhole instrument is equipped with mating acoustic receiver-transmitter installed in the body of downhole instrument in close proximity to the mounting seat.EFFECT: providing accurate and reliable information exchange between the downhole equipment and ground recording and control systems without wet contact of logging cable with downhole instrument.2 cl, 1 dwg

Electric signal splitter-relay // 2580563
FIELD: geophysics.SUBSTANCE: invention relates to geophysical research and production wells during drilling. Disclosed is an electric relay divider comprising a composite metal housing with connection threads on both ends, consisting of upper and lower adapters, as well as an intermediate insulation insert located between them, connected by threaded joints, in which separate metal parts are insulated from each other by a dielectric layer. Device also comprises a section of outer coating from dielectric material, a dielectric bushing with a channel for passage of drilling solution and installed inside dielectric bushing electronic unit connected with one contact through metal part to bottom adapter, and other contact to upper adapter. Electronic unit is equipped with transceiver of signals and power supply unit and is placed in additional metal casing, equipped with centralisers, which is installed in channel for passage of drilling solution with possibility of its unobstructed passage, and is fixed to lower adapter by nut with pin, which perform function of electric contact of lower part of metal enclosure of electronic unit with said adapter. Input of electronic circuit is connected to contact pin electric wires, and input of electronic unit in upper part of metal enclosure is connected via wire communication with an electrical connector for connection of response to electronic unit main telemetry system.EFFECT: broader functional capabilities for transmitting information from any communication channel.1 cl, 3 dwg

System ensuring well operation // 2577085
FIELD: oil and gas industry.SUBSTANCE: present invention relates to the system ensuring the well operation, and can be used to transmit the logging data from at least one well-logging device to the data acquisition system on surface via the cable. The system contains a surface transceiver, a cable, a well transceiver, the well-logging device and drive. The well transceiver is connected with the surface transceiver by cable. The well transceiver communicates with the surface transceiver using multiplexing with orthogonal frequency division of channels for data communication via the cable by modulation of the supplied to cable signal with pulse-width modulation (PWM) using the transistor bridge. The drive and at least one well-logging device are power supplied via the cable. Besides, the invention relates to the downhole tool.EFFECT: increased communication rate between sensors in the well and surface unit upon simultaneous high power assurance for the system ensuring the well operation.11 cl, 7 dwg

ethod for contactless well telemetry and telemetry system therefor // 2574647
FIELD: physics.SUBSTANCE: disclosed is a method for contactless well telemetry, which includes transmitting and reading an information spectrum between a ground-based recording and control system and an integrated logging tool via an intermediate receiving-transmitting device, lowered on a logging cable and interfaced with a logging tool. The receiving-transmitting device is pre-equipped with a small-size antenna and a signal spectrum converter; the logging tool is equipped with a reciprocal small-size antenna and a reciprocal signal spectrum converter for transmitting information. Information transmission is carried out via cable-magnetic link, wherein the information spectrum read and transmitted via a Manchester-2 code between the receiving-transmitting device and the integrated logging tool, during operation, is transferred to a high-frequency domain and back.EFFECT: providing accuracy and reliable information exchange between a logging tool and ground-based recording and control systems without wet contact between the logging cable and the logging tool.2 cl, 1 dwg

Borehole unit with field exploitation monitoring and control system // 2569390
FIELD: oil and gas industry.SUBSTANCE: in borehole unit with field exploitation monitoring and control system that includes at least one tubing string (1) with permanent or variable diameter and open or blinded lower end, equipped between formations or above and between formations with one or several packers (3) and modules (4) placed at the level of the well formations; module (4) is placed between tubing strings and coupled to them by means of adaptors (7). Module (4) is made as multi-chamber capsule with radial channels (11, 12, 13). In chambers (8, 9) there is a monitoring device (14) and regulating device made as a valve (18) driven by an electric motor (15). Module (4) is placed at the level of each well formation. The module is equipped with connector (21). Logging cable connecting modules (4) is passed inside tubing string (1). Module (4) is connected to a surface recorder placed at the well mouth by the logging cable.EFFECT: improved monitoring efficiency at dual or sequential operation of several producing or injecting formations by one well at the multipay field.6 cl, 2 dwg

Well monitoring using means of distributed measurement // 2568652
FIELD: measurement equipment.SUBSTANCE: invention relates to monitoring of producing oil and gas wells in real time. The method is proposed to monitor a well process, including stages, where: optic fibre located along the trajectory of the well shaft is periodically polled to produce distributed acoustic measurements; data samples collected from multiple longitudinal sections of the specified fibre are taken; and the specified data is processed for provision of real-time indication of acoustic signals, detected by at least one longitudinal sensitive section of the specified fibre, and polling parameters are regulated to vary the sections of the fibre, from which data samples are taken in response to detected acoustic signals. Also a system is disclosed with a software medium for realisation of the specified method.EFFECT: technical result is provision of timely identification of any problems and control of parameters of well development process.21 cl, 7 dwg

Connection via protective shell of line // 2564040
FIELD: oil and gas industry.SUBSTANCE: invention relates to facilities for registration of data transmission in a well. A registration system is proposed, comprising: a sensor; a transmitter transmitting a signal, besides, the signal includes a parameter reading measured by the sensor; at least one registration device receiving the signal. Besides, the registration device includes a transmission line enclosed into a protective shell, and the signal is detected by the transmission line via the protective shell material, besides, the transmission line comprises an electric conductor, and besides, the signal comprises an acoustic signal. Besides, the system comprises a polling system, which detects at least one of the following: triboelectric noise generated in response to an acoustic signal and piezoelectric energy generated in response to an acoustic signal.EFFECT: increased reliability of registration and transmission of information from a well to a surface along a continuous transmission line.18 cl, 8 dwg
ethod to deliver geophysical instruments into horizontal well // 2563855
FIELD: mining.SUBSTANCE: method is based on the fixation of downhole tools to the end of a flow string, to which the end of a cable section is connected, the length of which is comparable with the length of the vertical section of the well. During the subsequent growth of the flow string length the geophysical instruments together with the cable section and the flow string move along the horizontal section of the well to the distance from the well, comparable with the length of the vertical section of the well. Then an additional section of the geophysical cable is lowered into the well, the length of which is comparable to the length of the vertical part of the well. The lower end of this additional cable section is mechanically and electrically (by means of contactless radio wave connection) connected to the upper end of the cable section connected to the geophysical instruments and located in the flow string. After that, if required, the flow string by means of the growth of its length together with the cable in it is moved along the horizontal part of the well to a longer distance from the well. Then another section of the cable may be additionally lowered into the well and connected electrically and mechanically to the available sections in the well, connected to each other. This process of connection of another cable section to the sections already available in the well may be carried out in sequence, until the end of the flow string reaches the point most distant from the well, during the growth of the flow string, where the point corresponds to the end of the section of the horizontal part of the well intended for research. After lowering of each subsequent additional cable section into a well, it is pressed to the flow string, so that during the subsequent movement of the flow string there is no relative movement of the cable and flow string along the well. As soon as the geophysical instruments reach the intended end point in the horizontal part of the well shaft, and all required additional cable sections are lowered into the well, permanent information connection is set between the geophysical instruments and the earth surface. Afterwards the instruments are pressed to the well wall, and pressing of the cable sections and instruments to the flow string is eliminated, thus providing for the free removal of the required flow string section from the well, which is comparable to the length of the horizontal part of the well shaft intended for research. Afterwards the geophysical instruments together with the connected sections of the geophysical cable may be moved along the horizontal part of the well shaft from its bottom to the vertical section of the well.EFFECT: increased efficiency of delivery of the geophysical instruments into a horizontal well.

Electrical connector, in particular, for drilling strings // 2556582
FIELD: electricity.SUBSTANCE: invention relates to conducting connections of drilling pipes for signal transmission between a bottomhole and a surface. The electric connector is offered which contains the first and second parts (10, 20) of the connector which contain the first and second contact elements (11, 21) and the first and second holders (1b, 3a) respectively which hold the first and second parts of the connector, and can be assembled to each other by means of screw or bayonet fastening device. The first part of the connector contains the elastic bearing frame (13), the proximal end (13a) made integral with the first holder, and the distal end (13b) holding the first contact element. The second part of the connector contains a bearing ring (23) which provides engaging with the sliding image of the first contact element when fastening between the first and the second holders. On a limited circular arch of the bearing ring the second contact element is placed, and the ledge (30) is provisioned for stopping which is suitable to stop the first contact element at the second contact element to provide connection with the connector parts.EFFECT: technical result is improvement of accuracy and reliability of connection at the expense of avoidance of discrepancy and axial gaps between electric contacts during assembly.18 cl, 12 dwg
ethod of bottomhole communication with surface during well drilling // 2551602
FIELD: oil and gas industry.SUBSTANCE: invention claims method of bottomhole communication with the surface via cable-free telemetric system during well drilling, involving measurement channel data coding by noise-type signal and further transmission of measurement channel data in packets containing timing code, packet code and channel data. Measurement channel data are converted into pages of random length. Pages are split into parts for transmission in packets. Packet size is aligned with payload volume of noise-type signals. Packet code includes either new page start label and page format number, or label of previous page continuation.EFFECT: efficient utilisation of payload traffic available in an information packet in communication channel with noise-type signal, enhanced flexibility of measured well data transmission sequence.

Downhole telemetry system with above-bit unit and method for wireless transmission of data thereof to earth's surface // 2549622
FIELD: radio engineering, communication.SUBSTANCE: disclosed is a method for wireless transmission to the earth's surface of data of a base telemetry system with an above-bit unit, which includes measuring downhole parameters, encoding and transmitting signals by emission thereof with an electrode into the rock via a high-speed wireless electromagnetic link, receiving said signals with a base telemetry system and transmitting to the surface through an electrical divider of the base telemetry system. An additional electrical divider is placed in the immediate vicinity of the above-bit unit, said divider having a key element controlled by the base telemetry system and being used to receive signals emitted by the electrode of the above-bit unit. Dipole electrodes are opened when receiving signals with the key element and said electrodes are closed when the base telemetry system transmits signals through the key element. In the disclosed device, dipole electrodes of the main divider are connected to a transmitting unit and dipole electrodes of the additional divider are connected to receiving unit of the base telemetry system.EFFECT: high reliability of transmitting information data from a downhole unit to a downhole telemetry system and then to the earth's surface.2 cl, 1 dwg

Power supply and bottomhole information transmission unit // 2536596
FIELD: physics, geophysics.SUBSTANCE: invention relates to geophysical studies during drilling of oil and gas wells using telemetering systems with wireless electromagnetic data link. The power supply and bottomhole information transmission unit contains the turbine, electrical generator, electrical separator in assembly with the drilling string, module of sensors for measuring of bottomhole information and electronic unit. Meanwhile the electronic unit contains the bidirectional triode thyristor unit, bidirectional triode thyristor control unit, impulse signal current sensor, voltage sensor of the power winding of the electrical generator and temperature sensor, meanwhile the electronic unit is installed in tight compartment of the electrical generator housing, which in addition functions as a heat sink. Besides bidirectional triode thyristors are installed on the electrical generator housing itself, and the electronic unit is designed with a possibility of automatic stabilization of the current of transmission impulse signal and its restriction at exceeding the preset temperature of the bidirectional triode thyristor unit.EFFECT: improvement of reliable transmission of impulse signals via electromagnetic data link and maximum possible depth of drilling.4 cl, 1 dwg

Generator supplying power for borehole equipment // 2529993
FIELD: oil and gas industry.SUBSTANCE: generator, external stator placed in as sealed body, internal rotor installed at the generator shaft with roller bearings in sealed cavity filled with a lubricant coolant and sealing components. At that the generator sealed body is divided into three sealed loops - electrical, kinematic and protective ones. Electric loop of the stator is equipped with an independent compensating diaphragm and filled with cooling liquid and separated from the kinematic loop by a screen made of non-magnet material. Kinematic loop of the bearings is filled with lubricant and separated by a system of cup-type seals and inner diaphragm from the protective loop of an end sealing compensator filled with lubricant in the volume limited by the outside diaphragm. The electrical loop is filled with dielectric cooling liquid without excessive pressure; the kinematic is filled with dielectric cooling liquid without excessive pressure; protective is filled with dielectric cooling liquid under excessive pressure. Besides, the protective loop may be filled with lubricant having higher viscosity and higher boundary tension in comparison with lubricant in the kinematic loop. Zero point of the stator windings is coupled to the body through a plugging contact. The filling system for the protective and kinematic loops has a valve spindle to switch between the filled loops at vacuuming and filling of lubricant. Rigidity of diaphragms in the electric and kinematic loops is higher than the same in the protective loop.EFFECT: improving reliability of the generator and reducing labour intensity during repair and maintenance operations.6 cl, 1 dwg

ethods and systems for downhole telemetry // 2529595
FIELD: physics; geophysics.SUBSTANCE: invention relates to geophysics and can be used in logging operations. Disclosed are methods and systems for downhole telemetry using a device configured or designed for deployment in a drilled well which crosses an underground formation. The device includes a downhole telemetry unit, a surface telemetry unit and a line for transmitting data between the downhole and surface units, configured to designed to transmit data over one or more data transmission channels using at least one telemetry circuit selected from a plurality of telemetry circuits based on at least one downhole parameter.EFFECT: high quality of transmitting exploration data.26 cl, 7 dwg

Data transfer from well via electric communication cable and device to this end // 2528771
FIELD: oil-and-gas industry.SUBSTANCE: invention relates to logging in drilling and serves to transmission of measurement signals from the well to surface via wireless communication line. Proposed method comprises excitation of electric current in well tubing divided by dielectric inserts into top and bottom parts and registration of voltage change caused by current pulsation in tubing on the surface. Note here that wanted signal represents the voltage variation at receiver cylindrical coil terminals that makes the function of AC in pipe excited by alternating e.m.f. applied to dielectric insert. Proposed device comprises AC source connected to tubing in well divided by dielectric insert into top and bottom parts and surface cylindrical receiver coil with magnetic core composed of a hollow cylinder arranged coaxially at said tubing. Note here that several coil can be used arranged one above the other and equipped with band amplifiers their outputs being summed at voltage registrar input.EFFECT: simplified and accelerated transmission of signals from well bottom.2 cl, 1 dwg

ethod of terrestrial data transfer and receipt in drilling process and device for its implementation // 2527962
FIELD: oil and gas industry.SUBSTANCE: method is suggested for terrestrial data transfer and receipt in drilling process, which includes receipt of data from sensors of the bottomhole telemetry system, terrestrial data transfer with their further decoding and data transfer to the registers of information users. At that data transfer is carried out through cables of the power lines feeding the registers of information users and surface sensors installed at the drilling site and pumping equipment. Besides receivers receiving data from sensors of the bottomhole telemetry system, surface sensors, the basis computer and receivers in the registers of information users are equipped with electrical PLC-modems with the embedded network protocol including an interface block and programming interface units for data receipt and transfer through power lines. The device for implementation of the above method is also claimed.EFFECT: ensuring on-line monitoring of the remote registers distributed at the drilling site, improving reliability and operating convenience of the terrestrial data transfer system.2 cl, 1 dwg

Universal adapter for downhole drill motor with conductors or ports // 2524068
FIELD: mining.SUBSTANCE: drill string bottom part assembly comprises downhole motor fitted at said drill string and having rotor and stator. Note here that first hole is made in said rotor. Spindle arranged under downhole motor with second hole made therein. Third hole is made in the shaft with first and second ends. First end is coupled with rotor via first universal adapter. Second end is coupled with spindle via second universal adapter. Inner rod is fitted in the shaft third hole. Note here that inner rod has inner passage and third and fourth ends. Third end seals communication of inner passage with the rotor first hole while fourth end seals communication of inner passage with the spindle second hole.EFFECT: transducer signal transmission, power supply inside assembly spinning elements.21 cl, 8 dwg

System and method of isolation of current supplied to electric load in well // 2522825
FIELD: electricity.SUBSTANCE: system of connection to current-carrying lines consisting of current-carrying shell line, first current-carrying line, second current-carrying line and third current-carrying line includes: first control module capable to connect with the first current-carrying line and stay in serial connection with first electricity receiver in the well, connected to the second current-carrying line; second control module capable to connect with the second current-carrying line and stay in serial connection with second electricity receiver in the well, connected to the first current-carrying line; third control module capable to connect with the first current-carrying line and stay in serial connection with third electricity receiver in the well, connected to the third current-carrying line; and fourth control module capable to connect with the first current-carrying line and stay in serial connection with fourth electricity receiver in the well, connected to current-carrying line of the shell. When the first control module feeds current to the first electricity receiver in the well, second, third and fourth control modules feed uncontrolled current to the second, third and fourth electricity receivers in the well, respectively.EFFECT: efficient power supply to well devices, particularly reduced number or complete elimination of electric power receivers of well devices, fed by uncontrolled current or obtaining electric power in other uncontrolled ways, due to isolation of current fed to receiver.18 cl, 6 dwg

Communication port to be used on bore-hole measurement instrument // 2522340
FIELD: measurement equipment.SUBSTANCE: group of inventions relates to a bore-hole measurement instrument that can be used in a mining industry, as well as to a manufacturing method of a connection communication device for the same instrument. The instrument includes a casing having the possibility of being moved inside the well shaft and at least one sensor having the possibility of measuring the parameter of the well shaft. A controller including at least one of the following is installed in the casing: a data storage device and an operation control device at least of one sensor. Besides, the instrument includes a communication port installed in a hole made in the casing and including a connector corresponding to industrial standards, which is attached to a cable having an end device corresponding to industrial standards for connection to a ground device when the instrument is located on ground surface. With that, the connector corresponding to industrial standards includes a connector base corresponding to industrial standards, which is made in the housing made from moisture non-permeable and electrically insulating material. The manufacturing method of the connection communication device for a bore-hole measurement device consists in selection of a connector base corresponding to industrial standards, encasement of the above connector into the cover of the housing made from moisture non-permeable and electrically insulating material. Then, electrical connection of contact pins is performed on the connector base with chosen electric chains in the instrument, and introduction of the housing to the port made in the instrument casing wall is made at least so that moisture penetration inside the casing can be prevented.EFFECT: providing lower manufacturing cost and maintenance of bore-hole measurement instruments.10 cl, 23 dwg

ethod for monitoring and control for oil producer using battery supply in well // 2515517
FIELD: oil and gas industry.SUBSTANCE: invention is related to oil industry and namely to monitoring and control for oil producer. The method for monitoring and control for oil producer with control of submersible pump parameters envisages monitoring of gas-liquid column parameters in the well in the area of submersible pump. To this end sensors are installed at the production string near the submersible pump. Results of measurements are delivered to the surface, processed and used for control of the submersible pump during oil recovery. At that monitoring of gas-liquid column parameters in the well is carried out at different levels, including position of dynamic level and its distance up to the submersible pump. The sensors are located at several fixed levels of the production string. Solid state batteries for self-sustained power supply are planned for installation at the production string. These capabilities and results are used for control of submersible pump capacity in order to maintain depression and parameters of gas-liquid column in the well corresponding to the balance between production rate of the formation or formations and recovery rate from the well at maximum permitted capacity of the pump.EFFECT: improving production rate, oil recovery factor from the formation or several formations drained by the well due to direct measurement of gas-liquid column parameters at different levels, control of the submersible pump capacity and recovery rate considering the most favourable conditions for oil recovery.13 cl, 2 dwg

ethod of dual operation of two strata with one well // 2513896
FIELD: oil and gas industry.SUBSTANCE: invention relates to oil industry and can be applied in dual operation of two strata in the same well. The installation contains a flow column located in the well casing thus forming tubular annulus, a packer, a submersible electric centrifugal pump, an electrical submersible cable passing through the packer and a regulating closing and bypass device in a cylindrical body installed in the packer and limited at butt ends by sleeves for cross flows of strata fluids. The body of the device is connected by its upper sleeve to the flow column at the level above gravel and sand filler in the tubular annulus above the packer. By its lower sleeve the body is connected to the pump through a sleeve adapter. In the upper sleeve there is an opening with a nipple installed in it resting upon the edge of a socket made in the lower sleeve which forms with the body a channel for fluid passage from the sleeve adapter to the flow column through longitudinal channels inside the sleeves and to this end two pairs of lip-type seals are installed at the nipple. In the nipple there is a needle valve with electric drive. In the nipple there are windows communicating with radial channels of the upper sleeve through the groove made from outside the nipple at the window level for fluid extraction depending on pressure drop in strata.EFFECT: excluding effect of the upper stratum depression with possibility of regulation.6 cl, 1 dwg

Cable assembly of extended length for use in hydrocarbon wells // 2513814
FIELD: oil and gas industry.SUBSTANCE: invention relates to operating cables placed in hydrocarbon wells. The invention suggests a cable assembly for use in a hydrocarbon well of extended depth containing at least one well-head part and at least one bottom-hole part connected to each other. At that the well-head part of the cable has more tenslie strength in comparison with the bottom-hole part. Besides the well-head and bottom-hole parts of the cable have structural windings. Herewith quantity of structural windings in the bottom-hole part is less than quantity of structural windings in the well-head part per 30% at least.EFFECT: providing use of the cable in super-deep wells.22 cl, 8 dwg

Integrated system of continuous supervision // 2513600
FIELD: oil and gas industry.SUBSTANCE: invention relates to well surveying and can be used for continuous monitoring of parameters in the well. The invention suggests the system of supervision that includes sensors, in particular, pressure and temperature sensors, a cable connecting the supervision system and the well head. At that the well head contains an electric terminal with a telemetric system for data acquisition and a power source for the well supervision system. Besides the electric terminal of the well head contains a command module for the well supervision system and a data storage module with a microprocessor.EFFECT: simplifying the system for monitoring parameters in the well.24 cl, 4 dwg

Reliable system for transmitting data over wire conduit // 2513120
FIELD: radio engineering, communication.SUBSTANCE: invention relates to high-frequency data and/or power transmission systems which are suitable for borehole use, and includes connecting sleeves for signals/power, sections of a transmission line and transponders. Signals and power are transmitted between connecting sleeves and/or between connecting sleeves and transponders by electromagnetic resonance coupling. In at least part of the system, transmission line sections form parallel data transmission channels and transponders allow switching between data/power transmission channels, thereby considerably improving reliability. The invention also includes a method of transmitting data and/or distributing high-frequency power through a borehole transmission system, which includes a plurality of data/power transmission channels and a plurality of intersections, in which defective points in one data/power transmission channel are bypassed by routing data and/or power to parallel data/power transmission channels via electromagnetic resonance coupling.EFFECT: high reliability.52 cl, 22 dwg

Plant for dual operation of multiple-zone well with telemetry system // 2512228
FIELD: oil and gas industry.SUBSTANCE: plant contains in the casing pipe a pipe string, electric pump, power cable and device for dual strata operation made in a housing consisting of adjustment units and production rate measurement unit that contain controlling valves and instruments and meters. The housing consists of pipes equipped with packers and connected by sleeves for cross-flow fluids. Controlling valves are made in a cage with installed electrically-actuated needle valve interacting with crossover seat. In cage walls there are windows made at both sides of crossover seat. Instruments and meters are located higher and/or lower than controlling valves; they are interconnected by a logging cable laid in the channel made in the cage wall. Adjustment units and production rate measurement units are connected to the power cable by logging cable, TMC adapter installed at the end-face of electric pump and cable socket, which pin is fixed at a mounting flange with openings installed at the end-face of the housing and a contact pair socket placed in the centring skid fixed at the end-face of electric pump.EFFECT: increasing efficiency of dual operation of the well at optimum regulation of phase composition and metering of fluids from strata on real-time basis.9 cl, 2 dwg

easurements while drilling // 2509210
FIELD: mining.SUBSTANCE: system of measurements while drilling is proposed, comprising the following connected components: a module of an electric generator-pulsator, a module of an inclinometer and a module of gamma logging, including telemetering units. At the same time the specified telemetering system additionally comprises a unit of analysis and control of a switchboard and a switchboard connected to the specified modules. Besides, the inlet of the switchboard analysis and control unit is connected to the outlet of the control unit of the gamma logging module pulsations and the first inlet of the switchboard. And the outlet of the switchboard analysis and control unit is connected to the inlet of switchboard control. Besides, the second inlet of the switchboard is connected to the outlet of the inclinometer module pulsations control unit, and the outlet of the switchboard is connected to the inlet of the pulsator, installed in the module of the electric generator-pulsator.EFFECT: increased quality of well survey due to increased reliability of information transfer from a bottomface to surface.7 cl, 1 dwg

Above-bit module // 2509209
FIELD: physics.SUBSTANCE: apparatus has a housing with a central flushing hole, a centre electrode which is electrically insulated from the housing and is placed between insulators, as well as electric boards inserted in recesses in the housing in its sealed part, separated by sealing elements, wherein the fixing element of the insulator, situated in the socket part of the housing, is in form of matching protrusions and grooves made in said insulator, the socket part of the housing and the casing of the centre electrode, and the other insulator of the centre electrode, situated in the opposite socket part of the housing, is inserted in a counter-clockwise thread.EFFECT: improved operational reliability of fixing the centre electrode and simple design.1 dwg

Drill column // 2507395
FIELD: mining.SUBSTANCE: drill column contains two elements connected to each other detachably and rigidly with respect to rotation. Each element of drill column contains inner and outer pipe. Between them there formed is annular receiving cavity. Each element of drill column has a wire for power or data transmission. The wire passes along longitudinal axis of drill column. Each wire for power or data transmission is connected to induction coil. For power or data transmission along drill column induction coils are designed with possibility of inductive coupling with each other. The first element of drill column is provided with inner induction coil on outer circumference of its inner pipe. The second element of drill column is provided with outer induction coil on inner circumference of its outer pipe. Induction coils are made segmented consisting of several annular segments and at least partially are overlapped in radial direction. At least two segments are detachably connected to each other.EFFECT: providing compact and easy performed connection for power or data transmission wires during upgrade, simplifying operations performed with induction coils.

Instrument of electromagnetic logging in process of drilling // 2506611
FIELD: measurement equipment.SUBSTANCE: invention relates to the field of electromagnetic geophysical survey and may be used to perform electromagnetic logging of wells. Substance: the device comprises a body (1), made in the form of a solid metal cylinder. In the body (1) there are at least two receiving (2) and two transmitting (3) antenna units, connected with an electronics unit (4). Inside the body (1) there are two longitudinal holes (5, 6), one of which (5) is made as through for letting through a drilling mud, and in the other one (6) there is an electronics unit (4).EFFECT: higher wear resistance of an instrument, its longer service life.4 dwg
 
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