Sharifov's mandrel instrument to measure well parameters

FIELD: oil-and-gas industry.

SUBSTANCE: invention relates to hydrocarbons production and can be used for measuring pressure and/or temperature in whatever zones of fill-in or pressure-observation well with one or several operating objects, particularly, in simultaneous - separate production or injection, or analysis of formations of one well. Mandrel instrument comprises tool extractor and case consisting of top, central and bottom tightly jointed parts and furnished with hydraulic channels (HC), inner and outer grooves accommodating upper and lower sets of sealing gaskets (SG). Case lower part is provided guide tip arranged on its bottom or has a tip-like shape. Said tip has no HC or has one or several HC and/or fixation element. Case central part accommodates sealed main measuring system (MS) consisting of PCB with connected for connection to PC, power supply and transducer. The latter is connected with at least one case HC. Instrument is arranged in mandrel off-center pocket - well chamber. To measure and record dynamics of well parameters and/or back-up or dual measurement of well parameters, instrument if furnished with one or several additional identical MS. Note here that additional MS can be tightly placed in case lower part under lower set of MS and/or in case upper part or in tool extractor above upper set of SG, and/or in case central part between MS instruments. Note also that transducers of additional MS are connected with inner and/or outer mandrel space via appropriate HC.

EFFECT: higher efficiency and reliability of mandrel instrument.

11 cl, 9 dwg

 

The invention relates to techniques and technologies for the production of hydrocarbons (oil, gas, condensate, etc. and is designed to measure pressure and/or temperature in the annulus (bottom) and/or pipe zones in the extraction, injection or piezometric wells having one or more production facilities, in particular when dual extraction (ECE) or injection (ARI), or research (PPR) layers of one well.

The known method of dual and sequential operation of multiple layers of a single injection wells (patent RU 2253009 C1, 27.05.2005, see point 1 and 15 according to the formula of the invention), including the descent into the well on a string of pipe packers and downhole cameras with removable valves, made in the form of a controller with one or two internal opposite interchangeable fittings with or without reverse spring-loaded nodes to provide one-way or the opposite flow direction, and/or gas-lift valve for regulating the pressure of the flow and/or pressure regulator to themselves or after, and/or differential pressure regulator to maintain flow, and/or depth gauge, with or without a thermometer for measuring pressure and temperature before and/or after and/or flow regulator with pressure gauge and/or pressure gauge with fitting for pressure measurement on the simultaneous flow through him working environment or produced fluid, and/or flow meter, and/or cut and/or stabilizer and/or a hollow tube.

A device for testing (RU patent for useful model №75690), comprising a housing made with the possibility of descent into the borehole camera and possibility of installation of at least one underlying instrument, in this case has a solid Foundation in which you have at least one seat that is designed to install in it deep device.

Known gauge downhole electronic "mandrel" (RU patent for an industrial sample # 59267, 25.08.2004,), comprising a housing in the form of a stepped cylinder with a hole, inside of which is hermetically placed one measuring system for registering annular pressure and/or temperature.

Known gauge to the side gaslift mandrel type PPS53 (see the Internet. www.gosco.ru/page29.html.), comprising a housing with upper and lower sealing sleeves, inside of which is hermetically placed the measuring system for the registration of downhole parameters.

A device for measuring downhole parameters (patent RU 2249108 C1, 25.03.2005 year), including lowered into the well on a string of pipe, at least one mounting slot with removable deep unit, with mounting slot made in the form of oval borehole camera, with e Santany pocket with landing surfaces for sealing elements and one or more hydraulic channels, informing pocket cavity with an annular and/or pipe spaces well, and the depth of the device is made in the form of a hollow casing with hydraulic channels, the outer sealing element and the retainer is located within the measuring system with or without a damper, and a deep unit is installed in the eccentric pocket borehole cameras messages annulus and/or the tube space through the hydraulic channels of the measurement system for the registration of the physical parameters of the environment in the annulus and/or the tube space of the borehole, and/or operating parameters of the pumping installation.

These deep devices equipped with only one measuring system, which reduces the efficiency and reliability of their work in the well because there is a high probability of breakage of one of the measuring system when creating the device dynamic shock mechanical and/or hydraulic jar at the time of installation and extract it using rope techniques from Mandela - well chambers.

The aim of the invention is to improve the reliability and efficiency mandrelling device by providing at least two independent measuring systems for measuring and registering, when placed in an eccentric pocket mandrel - borehole camera (for example, KT, QUMM the other), the dynamics of downhole parameters, in particular pressure and/or temperature in the annulus and/or pipe zones in producing or injection, or piezometric wells with one or more operational objects-layers

Manderley the device into the well down using rope techniques and is installed in the eccentric pocket downhole camera by creating a dynamic impact on the unit using the cable-tool (mechanical Yas), and similarly extracted (mechanical or hydraulic jar) from the downhole camera after a long time of its work (for example, 10-30 days), i.e. after the study of the dynamics of downhole parameters, such as hole or casing and/or tubing pressure when working well, as well as decline curve or restore pressure reservoir when stopping the operation of the well.

Practice mandrelling type devices MIKON or GERS with one measuring system at the Priobskoye field has shown that often their elements (electronic Board, sensor or power supply) break (break) from dynamic shock when installing or removing devices from the eccentric pockets downhole camera type KT1 and KBMM, and these failures, unfortunately, are detected immediately, but it was after a long time of arr is a ditch in the well and retrieving them, that leads to a negative result and the additional cost of cable car operations. However, the equipment may be two independent measuring systems will reduce the risk on their simultaneous damage, which will increase the reliability of the device, and hence the technological and economic benefits from its use.

Manderley device includes interconnected top to bottom fishing head and a body consisting at least of the upper, middle and lower hermetically joined parts, and performed with hydraulic channels, the upper and lower outer grooves that are, respectively, the upper and lower sets of sealing collars. The lower part of the enclosure bottom is equipped with a guiding tip or has the form of a handpiece, the handpiece is made without or with one or more hydraulic channels and/or retainer. In the middle part of the body is placed and hermetically isolated from the influence of the borehole environment the main measuring system, consisting mainly of electronic card connector connection to a personal computer, the power source and the sensor connected, at least one hydraulic channel of the housing, for measuring and recording device, when placed in an eccentric pocket mandrel - borehole camera, speakers couples who metres in hole or the bottom hole zone of the well.

The purpose of the invention is achieved in that for measuring and recording the dynamics of the parameters in the pipe zone wells and/or duplication or double measurement of downhole parameters the device has one or more additional measuring systems, each of which consists mainly of individual electronic card connector connection to a personal computer, power supply and sensor, and tightly placed in the lower part of the casing below the lower set of sealing collars and/or in the upper part of the housing or fishing in the cylinder above the upper set of sealing collars, and/or in the middle part of the body between sets of sealing collars, and the sensor or additional sensors measuring systems are connected with the internal cavity and/or external space mandrel through the respective hydraulic channels of the body.

Depending on application conditions mandrelling device can be:

the main measuring system through its sensor rigidly connected with the lower end of the upper part of the housing and sealed from the top, between the lower and upper sets of sealing collars, in the middle part of the enclosure, made with or without lower inner blind end, the hydraulic channels of the body is placed on the upper part thereof below the top of the set is ω sealing sleeves and connected with the sensor main measuring system for measuring and recording the dynamics of the parameters, in particular pressure and/or temperature in the annulus or the bottom-hole zone of the well.

the main measuring system through its sensor rigidly connected with the upper end of the lower parts of the case and hermetically installed from the bottom, between the lower and upper sets of sealing collars, in the middle part of the enclosure, made with or without the upper inner blind end, the hydraulic channels of the body is placed on the lower part thereof above the bottom set of sealing collars and connected with the sensor main measuring system for measuring and recording the dynamics of the parameters, in particular pressure and/or temperature in the annulus or the bottom-hole zone of the well.

- additional measuring system through its sensor rigidly connected with the upper end of the handpiece and hermetically below, under the lower set of sealing collars, in the lower parts of the case are made with the upper inner blind end, a sensor associated with the hydraulic channels of the tip, for measuring and recording the dynamics of additional parameters, in particular pressure and/or temperature in the pipe zone wells;

- additional measuring system through its sensor rigidly connected with the lower end of the middle parts of the body and hermetically placed on top, under the bottom set of sealing collars, the lower is her parts of the body in the form of a tip, made with the lower hollow end, a sensor associated with the hydraulic channels of the middle part of the hull above the bottom set of sealing collars for duplication of measuring and recording instrument of the dynamics parameters, in particular pressure and/or temperature in the annulus or the bottom-hole zone of the well.

- additional measuring system through its sensor is connected with the lower end of the fishing head made with one or more hydraulic channels, and tightly placed on top, above the upper set of sealing sleeves in the upper parts of the case are made from the bottom of the inner blind end, a sensor associated with the hydraulic channels of the fishing head, for measuring and recording instrument of the dynamics of additional parameters, in particular pressure and/or temperature in the pipe zone wells;

- additional measuring system through its sensor is attached to the upper end of the upper casing parts and tightly placed below, above the upper set of sealing collars, fishing head, made with the upper inner blind end, and this sensor is connected with the hydraulic channels of the upper part of the hull below the upper set of sealing cuffs, dual measuring and recording instrument of the dynamics parameters, in particular, in strobe is or bottom-hole zone of the well;

sensors the primary and secondary measurement systems associated with hydraulic channels of the middle part of the hull above the bottom set of sealing cuffs, dual measuring and recording instrument of the dynamics parameters, in particular pressure and/or temperature in the annulus or the bottom-hole zone of the well.

sensors the primary and secondary measurement systems associated with hydraulic channels in the upper part of the hull below the upper set of sealing cuffs, dual measuring and recording instrument of the dynamics parameters, in particular pressure and/or temperature in the annulus or the bottom-hole zone of the well.

- middle part of the case is made with or without internal septa, with primary and secondary measuring system is connected to the upper and lower parts of the casing and hermetically placed on the top and bottom, between the lower and upper sets of sealing collars, in the middle part of the enclosure, while the sensors associated with hydraulic channels hull, duplication or additional measuring and recording instrument of the dynamics parameters, in particular pressure and/or temperature of the casing or the wellbore and/or pipe zone wells

the housing has at least one circulation channel without or with fitting for flow of formation fluids or slave is what the agent.

In the figures includes a number of performance mandrelling devices, in particular in figures 1, 2 variants of the devices (dual-zone) for measuring and recording the dynamics of downhole parameters, in particular pressure and/or temperature in the annulus (bottom) and pipe zone wells; figure 3, 4, 5 variants of devices (single-band) for duplication or double measure and record parameters in the annulus (the bottom-hole zone of the well; figure 6 - device (single-band or dual-zone) for measuring tube and/or annulus pressure; 7 - device (dual-zone) with fitting for measuring pressure and/or temperature in the annulus (bottom) and pipe zone wells; Fig device in the mandrel - borehole camera; figure 9 - multi-pack installing downhole cameras, with installed devices.

Manderley device (figure 1-5, 7) includes United (for example, thread) between a top-down fishing head 1 and the housing consisting of the upper 2, middle 3 and the bottom 4 are tightly linked parts. The top 2 (1, 3, 4, 5, 6) and/or the bottom 4 (2, 5, 6, 7) detail of the case is made with one or more hydraulic channels 5. The upper 2 and lower 4 (1, 2, 6, 7) or the top 2 and medium 3 (Fig 3, 4, 5) the details of the case is made with top 6 and bottom 7 of the grooves. The grooves 6 and 7, respectively, the upper 8 and lower 9 set the sealing cuffs. The lower part 4 of the housing bottom or is equipped with an applicator 10 without or with one or more hydraulic channels 11 (1, 2, 7), or from below in the form of a tip (guide) (Fig 3, 4, 5).

Inside the body is placed and hermetically isolated from the influence of the borehole environment the main measuring system (Fig.1-7), consisting mainly of the electronic Board 12 with the connector 13, the connection to a personal computer, a power source 14, the sensor 15 (for example, pressure and/or temperature), for measuring and recording device 16 (see Fig, 9), placing it in an eccentric pocket 17 (Fig) mandrel - well chamber 18, the dynamics of downhole parameters, in particular pressure (RP) and/or temperature (TK) in the external space mandrel 18, the respective annular zone 19 of the bore 21 or bottom zone 20 of the reservoir P1P2and/or P3well 21, for example, in the introduction of technology HORDES or ARI, or PPR (Fig.9).

The main measuring system (Fig.1-7), for the registration of the dynamics of downhole parameters (e.g., RA, TK) in annulus 19 or bottom 20 of the well area 21 (Fig.9), or rigidly connected via its sensor 15 with the lower end 22 of the upper part 2 of the housing and sealed from the top in the middle part 3 of the casing, made from the bottom of the inner blind end 23 (Fig 1, 3, 4), or rigidly connected is via its sensor 15 with the upper end 24 of the lower part 4 of the housing and hermetically installed in the bottom of the middle part 3 of the housing, performed either without (figure 5) or (2, 7) upper inner blind end 25, either without or with a partition 26 (6).

To measure and record downhole parameters (e.g., TJ, TK, etc), including in the internal cavity of mandrel 18, i.e. in the pipe zone 27 (for example, on the depth of the formation of the P1P2P3wells 21, the device 16 (Fig, 9) is equipped with at least one additional measuring system (see figure 1-7), consisting mainly of a separate electronic Board 28 with a connector 29 connection to a personal computer, a power source 30 and detector 31 (for example, pressure and/or temperature). Additional measuring system or rigidly connected via its sensor 31 with the upper end 32 of the tip 10 and hermetically below in the lower part 4 of the housing, is made with the inner upper blind end 33, and the sensor 31 is connected with the hydraulic channels 11 of the handpiece 10 (1), or it is rigidly connected with the lower end 34 of the fishing head 1 made by one or more hydraulic channels 35, and tightly placed on top in the upper part 2 of the housing, is made with the lower inner blind end 36, and the sensor 31 is connected with the hydraulic channels 35 of the fishing head 1 (see figure 2, 7). Also for duplication or double measure downhole parameters (e.g. the measures RT etc) in the pipe zone 27 wells 21 (Fig.9), the device 16 can be additionally equipped with two measuring systems placed in the bottom of the lower part 4 of the housing similar to figure 1 and above in the upper part 2 of the body like figure 2.

For duplication or double measure and record downhole parameters (e.g., RA and/or TK) in annulus 19 or bottom 20 of the well area 21 (Fig.9), the device 16 is equipped with at least one additional measuring system (Fig.3-5), consisting mainly of a separate electronic Board 28 with a connector 29 connection to a personal computer, a power source 30 and detector 31. Additional measuring system rigidly connected via its sensor 31 or the lower end 37 of the middle part 3 of the housing and hermetically placed on top of the lower part 4 in the form of a tip made with the lower hollow end 38, and the middle part 3 of the case is made with one or more hydraulic channels 39, associated with the sensor 31 (for example, see figure 3), or it is rigidly connected with the upper end 40 of the upper part 2 of the housing and hermetically posted by bottom fishing in the cylinder 1, is made with the upper inner blind end 41, and the sensor 31 is connected with a hydraulic channels 5 of the upper part 2 of the housing (for example, see figure 4, 5).

For duplication or dopolnitelnoj the measuring and recording device 16 parameters, in particular, (RH and/or PT) in annulus 19 (bottom 20) and/or pipe 27 zones of the wells 21 (Fig.9) primary and secondary measuring system (6) through the sensors 15 and 31 may be rigidly connected with the top 2 and the bottom 4 of the housing parts, and hermetically placed on the top and bottom, between the bottom 9 and the top 8 sets of sealing collars, in the middle part 3 of the housing, the sensors 15 and 31 are connected with hydraulic channels 5 top 2 and the bottom 4 of the housing parts.

The device can be performed without or with lock 42 (2, 7), and is also equipped with at least one circulation channel 43 without or with fitting 44 (see Fig.7), for flow of formation fluids or working agent.

The device (Fig.1-7) works as follows. Each device 16 is installed using cable technology, eccentric pocket 17 corresponding mandrel - well chamber 18 (Fig, 9) by creating a dynamic blows down mechanical jar. After installation of the device 16 in the mandrel 18 of the cable tool is retrieved from the well 21. When operating the device 16 with the measuring systems in the well 21 measures and records the dynamics of downhole parameters (e.g., RT and/or TK), or in the annulus 19 (bottom 20) and pipe 23 areas, or only in annulus 19 (bottom 20) or pipe 23 the well area 21. Further processing of the measured well parameters cardy device 16 is extracted, using rope techniques, from mandrel 18 by creating a dynamic blows up hydraulic or mechanical jar. After extracting device 16 from the well 21 every measuring system connected to a personal computer and read processing of data (measurements) on the dynamics of downhole parameters, in particular pressure and/or temperature.

1. Manderley device for measuring downhole parameters including interconnected top to bottom fishing head and a body consisting at least of the upper, middle and lower hermetically joined parts, and performed with hydraulic channels, the upper and lower outer grooves that are, respectively, the upper and lower sets of sealing collars, with the lower part of the enclosure bottom is equipped with a guiding tip or has the form of a tip, and the tip is made without or with one or more hydraulic channels and/or the latch, while in the middle part of the body is placed and hermetically isolated from the effects of downhole environment, the main measuring system, consisting mainly of electronic card connector connection to a personal computer, power supply and sensor associated at least one hydraulic channel of the housing, for measuring and region is ation of the device, when placed in an eccentric pocket mandrel - borehole camera, the dynamics of the parameters in the annulus or a well bore zone, characterized in that for measuring and recording device, including the dynamics of the parameters in the pipe zone wells and/or duplication or double measurement of downhole parameters it is equipped with one or more additional measuring systems, each of which consists mainly of individual electronic card connector connection to a personal computer, power supply and sensor and tightly placed in the lower part of the casing below the lower set of sealing collars and/or in the upper part of the housing or in the fishing head above the upper set of sealing collars, and/or in the middle part of the body between sets of sealing collars, and the sensor or sensors additional measuring systems are connected with the internal cavity and/or external space mandrel through the respective hydraulic channels of the body.

2. Manderley device according to claim 1, characterized in that the main measuring system through its sensor rigidly connected with the lower end of the upper part of the housing and sealed from the top, between the lower and upper sets of sealing collars, in the middle part of the enclosure, made with or without the bottom inside is it a blind end, when this hydraulic channels of the body is placed on the upper part below the upper set of sealing collars and connected with the sensor main measuring system for measuring and recording the dynamics of the parameters, in particular pressure and/or temperature, annular or bottom-hole zone of the well.

3. Manderley device according to claim 1, characterized in that the main measuring system through its sensor rigidly connected with the upper end of the lower parts of the case and hermetically installed from the bottom, between the lower and upper sets of sealing collars, in the middle part of the enclosure, made with or without the upper inner blind end, the hydraulic channels of the body is placed on the lower part thereof above the bottom set of sealing collars and connected with the sensor main measuring system for measuring and recording the dynamics of the parameters, in particular pressure and/or temperature, annular or bottom-hole zone of the well.

4. Manderley device according to claim 1, characterized in that the additional measuring system through its sensor rigidly connected with the upper end of the handpiece and hermetically below, under the lower set of sealing collars, in the lower parts of the case are made with the upper inner blind end, and this sensor is connected with the hydraulic channels of the tip, to change the program and the registration of the dynamics of additional parameters, in particular pressure and/or temperature in the pipe zone wells.

5. Manderley device according to claim 1, characterized in that the additional measuring system through its sensor rigidly connected with the lower end of the middle parts of the body and hermetically placed on top, under the bottom set of sealing collars, in the lower parts of the case are in the form of a tip made with the lower hollow end, and this sensor is connected with the hydraulic channels of the middle part of the hull above the bottom set of sealing collars for duplication of measuring and recording instrument of the dynamics parameters, in particular pressure and/or temperature, annular or bottom-hole zone of the well.

6. Manderley device according to claim 1, characterized in that the additional measuring system through its sensor is connected with the lower end of the fishing head made with one or more hydraulic channels, and tightly placed on top, above the upper set of sealing sleeves in the upper parts of the case are made from the bottom of the inner blind end, and this sensor is connected with the hydraulic channels of the fishing head, for measuring and recording instrument of the dynamics of additional parameters, in particular pressure and/or temperature in the pipe zone wells.

7. Manderley device according to claim 1, characterized in that the additional the measuring system through its sensor is attached to the upper end of the upper casing parts and hermetically below, above the upper set of sealing collars, fishing head, made with the upper inner blind end, and this sensor is connected with the hydraulic channels of the upper part of the hull below the upper set of sealing cuffs, dual measuring and recording instrument of the dynamics parameters, in particular, annular or bottom-hole zone of the well.

8. Manderley device according to claim 3 or 5, characterized in that the sensors of the primary and secondary measurement systems associated with hydraulic channels of the middle part of the hull above the bottom set of sealing cuffs, dual measuring and recording instrument of the dynamics parameters, in particular pressure and/or temperature, annular or bottom-hole zone of the well.

9. Manderley device according to claim 2 or 7, characterized in that the sensors of the primary and secondary measurement systems associated with hydraulic channels in the upper part of the hull below the upper set of sealing cuffs, dual measuring and recording instrument of the dynamics parameters, in particular pressure and/or temperature, annular or bottom-hole zone of the well.

10. Manderley device according to claim 1, characterized in that the middle part of the case is made with or without internal septa, with primary and secondary measuring system is connected to the upper and lower detail the roles of housing and hermetically placed on the top and bottom, between the lower and upper sets of sealing collars, in the middle parts of the body, the sensors associated with hydraulic channels hull, duplication or additional measuring and recording instrument of the dynamics parameters, in particular pressure and/or temperature, casing or wellbore and/or pipe zones of the well.

11. Manderley device according to claim 1, characterized in that the housing has at least one circulation channel without or with fitting for flow of formation fluids or working agent.



 

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34 dwg, 9 dwg

FIELD: mining.

SUBSTANCE: invention refers to gas and oil industry and can be used, in particular, to select technology of well building and construction, as well as to monitor technical condition thereof inside permafrost rocks (PFR) and in permafrost zone. According to proposed method, a well is drilled, temperature is measured in depth of a well and then geothermic gradient is defined. On the basis of the results of these measurements, lower boundary depth of PFR ground bed is defined. For this purpose, before temperature in well depth is measured, a casing string (CS) is let down in a well along its sidewall and cemented. After cementing of CS is completed, measurements of temperature inside a well are carried out in the process of cement setting during thermal recovery. The results of temperature measurements are used to plot temperature curve of a well depending on the depth of a well. According to the depressed temperature level of the temperature curve, upper zone of PFR mass bedding inside it and lower zone under it are indicated. Lower zone is the zone of thawed, cooled and/or waterflooded rocks with higher temperature level when the average temperature gradient does not exceed 0.02-0.05°C/m. Between them, an intermediate transition "step" zone is indicated. This is a zone with rapid increase in temperature and high value of temperature gradient (G = 0.06-0.45°C/m and higher). According to the temperature curve and indicated connection point of the "step", which is an intermediate, high-gradient temperature zone with lower thawed, cooled and/or waterflooded zone, the depth of PFR mass bedding is defined. Inside PFR mass, separate local zones of thawed rocks with higher temperature level, frozen zones with depressed temperature level and intermediate high-gradient temperature zones lying between them are indicated simultaneously. According to junction points of intermediate zones and thawed zones, the boundaries between thawed and frozen zones located inside PFR mass are defined. In this case, temperature measurements inside a well are made using a highly sensitive thermometer with intervals of temperature measurement in depth of not more than 0.1-0.2 m.

EFFECT: more accurate definition of bottom depth of permafrost rock mass.

2 cl, 2 dwg

FIELD: oil-and-gas industry.

SUBSTANCE: invention relates to oil and gas industry and can be used for multi-formation well monitoring. For this, self-contained instruments are installed on anchors above every formation, for example, prior to swabbing. Swabbing is carried out along with control over fluid parameters, well fluid level depth by its pressure and sequence of commissioning wells. Well fluid level and pressure are recovered along with recording recovery curves. Anchors with self-contained instruments are withdrawn to analyse recorded data. First commissioned formation production rate is determined, while production that of the second and next formations are defined by subtracting known production rate of the first formation from total production rate, then subtracting the next formations. Dynamics of variations in temperature, wellbore pressure, moisture content of fluid above every formation is used to substantiate and confirm dynamics of variations in production rates and to reveal cross flows between beds. Field-geologic measures are undertaken to eliminate said cross flows. Now, anchors with self-contained instruments are again installed above every formation, production pump is downed into the well to start production. Production pump withdrawn for repair, instruments with recorded data are removed to compare their readings with those obtained in swabbing, cross flows are revealed and eliminated.

EFFECT: higher quality and safety, elimination of cross flows during well development.

FIELD: oil and gas industry.

SUBSTANCE: invention refers to oil industry and can be applied in dual operation of two beds in the same well. The unit comprises a power drive, a driving element, a packer and fluid lifting lines with parallel tubing string columns lowered in the well. The unit accommodates a parallel anchor with apertures for cables and tubing string columns, eccentric guides fixed by centering clips on auxiliary branch built in the long tubing string column, bottomhole apparatuses connected to cables and arranged above and below the packer. Each guide has apertures for the cables and an aperture with the top deepened inside in the form of a funnel for the short tubing string column.

EFFECT: invention ensures coupling of the short tubing string column with the parallel anchor and prevents damage of cables.

3 dwg

FIELD: oil and gas production.

SUBSTANCE: downhole equipment centraliser comprising a hollow rod with a socket end, a coupling, a cylinder, a piston pusher and rams partially radially movable forward when travelling along the tapered case. Besides the coupling is provided from beneath; from the top, the hollow rod is equipped with a landing seat, and the cylinder wherein all the movable elements are provided, comprises ram windows and seats between the coupling and the landing seat while being designed to rotate and join a centre tube of the hollow rod; the tapered case is rigidly connected with the piston pusher spring-assisted from beneath to travel longitudinally downwards and rotate about the hollow rod.

EFFECT: rigid and reliable centering of the downhole equipment in the required interval.

3 dwg

FIELD: oil-and-gas production.

SUBSTANCE: definition method of following oil in production of gas-condensate well includes definition of oil density by infrared spectrometre. It is constructed gauge dependence of transmission density on concentration of oil in dissolver in the form of "pure gas condensate" or alkan, used in the capacity of blank sample during calibration and following measurements of concentration of oil in surveying sample by value of value of optical density. Before measurement of optical density of blank and surveying sample it is implemented scanning of samples spectrum in the range 2700-3000 nm and fixation of maximal value of intensity of light signal in mentioned range of spectrum for each sample. Measurement of optical density of surveyed sample is implemented at the wave length corresponding to the fixed maximal value of signal considering measured value of optical density of blank sample measured at the wave length corresponding to fixed maximal value of blank sample signal.

EFFECT: invention provides increasing of measurement accuracy and increasing of the range of measured concentrations and also provides reduction of time consumption for samples preparation.

1 cl, 7 dwg

FIELD: oil-and-gas production.

SUBSTANCE: method is in alternate changing of mass and density, previously separated from gas liquid, gas mass and inclusion volume fraction of water and oil of each well, passed correspondingly through mass counters of liquid, gas and continuous drymetre during fixed time space, with recalculation into daily output agreeably by mass velocity crude oil (water-oil mixture), mass velocity of oil and volume flow of oil gas. Novelty of method is in definition of residue (free) gas content by formula . On conditions that difference between and changes to the value , where correspondingly is calculated and medium measured densities of oil-water-gas mixture, W - average watering of water-oil mixture, measured by continuous drymetre, Δ ρabc - absolute accuracy of densimetre instrumentation. Further numerical value Kg can be used for updating of oil mass Mog in oil-water-gas mixture and volume Vg of residue free gas.

EFFECT: higher consumer properties in comparison to known already technical decisions.

2 cl, 1 dwg

FIELD: oil-and-gas production.

SUBSTANCE: for direction of path of drilling of the second well nearby the first well it is implemented feeding of changed in time electrical current to conducting casing or tail of the first well. It is additionally drilled the third well nearby peripheral section of the first well and it is formed conducting path lengthwise the third well between peripheral section of the first well and current generator. Then it is defined electromagnetic field of the second well, generated by current in the first well. Direction of drilling path of the second well is defined using definite electromagnetic field.

EFFECT: providing of alignment of the second well relative to the first.

8 cl, 4 dwg

FIELD: oil-and-gas production.

SUBSTANCE: device for surveying of high-temperature wells contains vessel Dewar bottle, plug, heat absorber and chassis with electronic circuit. Heat absorber is implemented in the form of cup with openings in bottom and cover of cup. Internal volume of cup is filled by material with low temperature of melting and high specific heat of fusion. Inside the cup there are installed bushings of diametre equal to internal diametre of cup. Bushings allow openings equal to number of conductors, passed through opening sin parallel to each other. In spaces between the first bushing and bottom of cup and between the second bushing and cover of cup there are located layers of thermal-resistant encapsulating composition.

EFFECT: increasing of protection of electronic circuit of device against coming of heat by conductors and reliability of operation of well device in high-temperature wells.

2 dwg

FIELD: oil-and-gas production.

SUBSTANCE: in the process of investigation it is implemented measuring of bottom-hole pressure and discharge at continuous duty of well into gas-collecting collector. There are measured parametres of operation of well at its total stabilisation at the mode with maximal debit. There are measured parametres of operation of well at several modes of the same duration by time with different debits. Additionally investigation is implemented uninterruptedly, without stop of well between modes. It is stopped well up to total stabilisation of wellhead pressure. It is taken pressure transient analysis, it is measured strata pressure. It is implemented start-up of well into gas-collecting collector. There are defined coefficients of filtrational resistance A and B.

EFFECT: reduction of consumption of working time for implementation of investigation, increasing of investigations results' accuracy.

FIELD: oil-and-gas production.

SUBSTANCE: there is implemented connection to cable of electrical centrifugal pump (ECP). It is rub flow column with ECP and bottomhole apparatus (BA) into well. It is connected to ground-based equipment. There are implemented measurements of BA and feeding by cable information on surface, on the basis of which it is implemented optimisation of well's operation process. In the capacity of BA it is used bottomhole independent device (BID) which is suspended on rope passing through hole annulus on surface. Lower than ECP there are located isolated from downhole liquid and connected to cable cord primary winding of feeding transformer and signal transformer. BID is outfitted by secondary winding of feeding transformer connected to accumulator of BID and signal transformer connected to electronic circuit of BID. It is moved BID by means of rope by depth of well and there are implemented measurements and recording into BID memory of parametres of well liquid. It is rised by rope BID upwards, there are overlapped primary and secondary winding of transformers with creation of common electromagnetic induction flow. It is charged accumulator of BID through feeding transformer. It is transferred information from the memory of BID to inlet of ground-based equipment through signal transformer.

EFFECT: increasing of accuracy, operability of information about liquid parametres.

FIELD: oil-and-gas production.

SUBSTANCE: there is implemented connection to cable of electrical centrifugal pump (ECP). It is rub flow column with ECP and bottomhole apparatus (BA) into well. It is connected to ground-based equipment. There are implemented measurements of BA and feeding by cable information on surface, on the basis of which it is implemented optimisation of well's operation process. In the capacity of BA it is used bottomhole independent device (BID) which is suspended on rope passing through hole annulus on surface. Lower than ECP there are located isolated from downhole liquid and connected to cable cord primary winding of feeding transformer and signal transformer. BID is outfitted by secondary winding of feeding transformer connected to accumulator of BID and signal transformer connected to electronic circuit of BID. It is moved BID by means of rope by depth of well and there are implemented measurements and recording into BID memory of parametres of well liquid. It is rised by rope BID upwards, there are overlapped primary and secondary winding of transformers with creation of common electromagnetic induction flow. It is charged accumulator of BID through feeding transformer. It is transferred information from the memory of BID to inlet of ground-based equipment through signal transformer.

EFFECT: increasing of accuracy, operability of information about liquid parametres.

FIELD: mining industry.

SUBSTANCE: invention can be used in case of gas-lift operation of wells equipped by free piston-type installations. Invention envisages stopping well, connecting tube space and annular space in wellhead, recording bottom zone and wellhead pressures in tube and annular spaces, and computing well operation parameters using inflow curve plotted according to differences of bottom zone and wellhead pressures. Volume of produced fluid is found from potential output of formation and from condition of output of free piston. When comparing these volumes, parameters of well are computed in the base of minimum volume value.

EFFECT: optimized well operation.

2 dwg

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