Pipe anchoring system and method

FIELD: pipes.

SUBSTANCE: group of inventions relates to pipe anchoring systems, to pipe element anchoring method. Pipe anchoring system includes component in form of truncated cone, having first section in form of truncated cone and second section in form of truncated cone, wherein first section in form of truncated cone narrows in direction, opposite to direction, in which second section in form of truncated cone narrows, pipe wedges, in operating condition connected with first section in form of truncated cone, radially expanding in response to first section in form of truncated cone longitudinal movement relative to pipe wedges, seal, in operating condition connected with second section in form of truncated cone, radially expanding in response to second section in form of truncated cone longitudinal movement relative to seal, and socket with surface, made with possibility of leak-tight connection with plug, lowering onto it.

EFFECT: technical result is improved of pipes anchoring efficiency.

20 cl, 6 dwg



Same patents:

FIELD: mining.

SUBSTANCE: modular assembly (21) contains the top module (23), the bottom module (25) and throttle bridge module (27). The top module (23) of production Christmas tree contains casing head (41) of production Christmas tree. The bottom module (25) of the production Christmas tree contains guidance system (51) and connects the pipelines to intra-field infrastructure (57). Throttle bridge module (27) contains the throttle and measuring bridge and provides the connection of three said modules. Before the delivery to the drilling rig (31) the parts of modular assembly (21) of the production Christmas tree can be connected together and tested onshore. After the delivery to the drilling rig (31) they are separately lifted from the barge (29) to the drilling rig with the help of the crane (33). After the components of the production Christmas tree are on the drilling rig (31) the modular production Christmas tree (21) is again assembled and then mounted on the sea bed (35) via the winch (37).

EFFECT: reduction of cargo weight during transportation of production Christmas tree components from barge to production drilling rig.

12 cl, 13 dwg

FIELD: mining.

SUBSTANCE: proposed method comprises preparation of the field of cleaning operations by construction of working site over the direction of strata at the face of mine edge with cutting of outcropping bed, installation of working equipment at said site, that is, a drilling rid and water pump column, production of flat seams from mine bottom point and mine roadways over every seam crossed by cross-cut, and excavation of coal aside from working site by jetting.

EFFECT: higher efficiency.

3 dwg

FIELD: oil-and-gas production.

SUBSTANCE: invention relates to tool for geotechnical measures as, for example: fitting or removing plug, valve opening/closing, tube cutting and borehole cleaning. Proposed tool 100 comprises unit arranged on well-logging cable to work at well bottom and electric drive 40 connected with aforesaid unit to control it. Note here that proposed tool incorporates one or several transducers 25, 45, 65, 85 to measure, at least, one operating parameter of proposed unit. Also, this tool comprises linear actuator connected with drive and configured to displace the tool linearly and anchoring system connected with electric drive unit. Geotechnical parameters are optimised on the basis of, at least, one measured operating parameter.

EFFECT: monitoring of operating parameters.

36 cl, 3 dwg

Storage hold // 2447263

FIELD: mining.

SUBSTANCE: device comprises a casing made in the form of a cylindrical sleeve, consisting of pipes connected with couplings. The lower pipe of the casing ends with a plug. The upper pipe of the casing is fixed in a support, in the lower part of which there are figured conical slots provided for free passage of liquid and evenly arranged along the support circumference. The inner cavity of the support is made in the form of a funnel. To provide for fixation of the support, its lower end is made as stepped, resting with a circular site against a base of a transition section in a stepped well.

EFFECT: improved efficiency of well operation, increased overhaul period, reduced operational costs.

3 cl, 2 dwg

FIELD: oil and gas production.

SUBSTANCE: procedure consists in pumping water-free oil through pump unit due to its connection to pipeline of commodity oil through specially made bypass for time required for generation of bitumen-resin-paraffin film of as thick, as 50 mcm on working surfaces. Further, the pump is disconnected from the pipeline of commodity oil and oil is replaced from a cavity of the pump with water. Duration of hydrophobisation is determined beforehand under laboratory conditions by the method of "a cold rod".

EFFECT: raised efficiency and reduced expenditures.

1 dwg

FIELD: gas-and-oil producing industry.

SUBSTANCE: calculated volume of hydrocarbon gas is supplied into gas space of reservoir; also, this gas does not contain sulphide hydrogen and has density less, than density of gas present in gas space of reservoir. From gas space of the reservoir gas is withdrawn to an installation of light fractions recovery out of the part of space filled with sulphide hydrogen containing gas. Volume of supplied hydrocarbon gas is controlled and supplied at rate not exceeding 6 m3/h. Rate of corrosion under the roof of the reservoir is monitored with installed lubricators. Reference-specimen of corrosion are arranged in a chain in control zones of gas space of the reservoir in specified intervals along height of the reservoir. Consumption of supplied gas is controlled by results of monitoring.

EFFECT: raised reliability of protection, control over process.

1 dwg

FIELD: oil and gas production.

SUBSTANCE: procedure consists in separate supply of hydrogen and oxygen into combustion chamber on underwater object. Hydrogen and oxygen are mixed and burn in the combustion chamber releasing gaseous products and energy. Generated energy is fed to at least one of the following installations: a compressor or a pump boosting pressure of flow of hydrocarbon material from an oil and/or gas well in a main or a heat exchanger transferring heat from gaseous products of combustion to flow of hydrocarbon material from an oil and/or gas well in a main.

EFFECT: reduced expenditure for generation of energy actuating extracting equipment.

13 cl, 3 dwg

Power system // 2361066

FIELD: oil and gas industry.

SUBSTANCE: group of inventions refers to system and to method of supplying remote underwater installation with electric power. The system consists of at least one electric controlled component, and of a line for fluid supply coming from the underwater installation to the second installation designed to supply fluid under pressure to the underwater installation via the supply line. The underwater installation consists of equipment for pressurising of fluid supplied into a well or into fluid coming from the well. The system consists of equipment for generating electric power, which includes a turbine functionally connected with the supply line on the underwater installation and generating electric power from the said fluid. Generated power provides current for at least one electric governed component. The second installation is designed to boost pressure of supplied fluid to a level exceeding the level required for pressurising fluid into the well or into fluid coming from the well on the underwater installation.

EFFECT: facilitating reliability and continuous functioning of system.

43 cl, 5 dwg

FIELD: mechanics.

SUBSTANCE: invention relates to hoists for oil well repair. The device and method disclosed by the invention, provides for minimiszing cases of drum clutch slipping in the oil well repair plants. Sensor (10) measures the rate of motor or power transmission rotation at the first clutch locking. If movement amount exceeds the allowable level, an alarm is actuated warning the operator about plant malfunctions. In addition, the device includes drum movement sensor (8).

EFFECT: improved reliability of device and ensured safety of performed works.

20 cl, 5 dwg

FIELD: electricity.

SUBSTANCE: invention is related to the field of electrical engineering, in particular, to borehole telemetering systems for transfer of signals between surface device and borehole instrument installed in borehole. Wired drill pipe is suggested for drilling stem of borehole instrument installed in borehole that penetrates geological layer. Wired drill pipe includes drill pipe, cable and wire holder. Drill pipe is provided with slot in its end. Slots are able to receive at least one transformer. Drill pipe has internal surface that forms channel for flow of borehole mud through it. Cable passes from transformer into channel of drill pipe. Wire holder is located on internal surface of drill pipe. Wire holder is intended for cable fixation in it.

EFFECT: reduction of probability of electric faults and/or failures because of proper contact between neighbouring pipes.

37 cl, 51 dwg

Hydraulic packer // 2555846

FIELD: oil and gas industry.

SUBSTANCE: intended for disconnection of the well casing string between the submerged pump and equipment for produced fluid separation from mechanical admixtures, and can be also used during development and operation of the oil and gas wells. The hydraulic packer contains stock with thread ends, installed on stock sealing assembly containing stop, movable sleeve and installed between them sealing element, and hydraulic drive containing a hydraulic cylinder and valves system. At that end part of the spring-loaded piston of the hydraulic cylinder is located in the internal boring of the movable sleeve. On the hydraulic cylinder lid a ball check valve and differential valve are installed, they are hydraulically connected with each other by the common chamber connected with output of the submerged pump. At that the differential valve is provided with radial channel, that during shutdown of the submerged pump connects the above piston cavity of the hydraulic cylinder with annulus.

EFFECT: improved design of the hydraulic packer, improved comfort o maintenance.

2 cl, 4 dwg

FIELD: oil and gas industry.

SUBSTANCE: packer for creation of the gravel filter includes cross-over unit containing the nipple with side holes blocked by a bushing moving along the nipple, the sealing unit comprising the sealing collar with anchoring devices, the core enclosing the collar and located inside the guiding bushing and the pre-coat unit containing a slide valve. The core and the guiding bushing are implemented with a possibility of compression of a sealing collar at their shift with reference to each other. Also the packer contains the pre-coat tube leaning by end face on the end face of the housing of the slide valve of the pre-coat unit and passing inside the core of the sealing unit and inside the nipple of cross-over unit with a possibility of formation of through passage channel in the packer. The pre-coat unit also contains the insert with pre-coat windows located between the external surface of the housing of the slide valve and the internal surface of the cylindrical base with pre-coat windows. On the lateral surface of the housing of the slide valve two rows of process holes are implemented, and process holes of one of rows are located opposite to the process holes implemented in the insert which is rigidly fastened to the cylindrical base. Pre-coat windows of the base are located opposite to pre-coat windows of the insert. From the one side the insert encloses the face part of the pre-coat tube, and from the other side it has the through hole the diameter of which is less than the diameter of the pre-coat tube. And the through hole is implemented with a possibility of installation in it of the flushing tubes used in the assembly of configuration of the underground equipment for creation of the gravel filter.

EFFECT: improved device reliability.

6 dwg

FIELD: oil and gas industry.

SUBSTANCE: device for the borehole sealing includes a well screen unit having the upper end and a segment of an imperforated bearing tube close to the upper end, a withdrawable unit, a mechanical packer and a bypass tool and a swellable packer. The withdrawable unit is placed at the upper end of the imperforated bearing tube. The Bypass tool is placed over the withdrawable unit. The swellable packer is made of a swelling material fixed to the outer side of the imperforated bearing tube and has the first diameter and the second diameter bigger than the first one. The device is made with the potential gravel packing of the well before installation and further removal of the mechanical packer, injection of gravel slurry through the bypass tool to the annular space between the well screen unit and the wellbore wall and sealing of the annular space by the swellable packer. Removal of the mechanical packer and the bypass tool is made by means of the withdrawable unit disconnection.

EFFECT: invention ensures perfection of the device design that does not require additional round trips.

22 cl, 5 dwg

FIELD: oil and gas industry.

SUBSTANCE: mechanical isolation packer includes composite rod with ends for thread, isolation unit installed at the rod, which includes a fixed cylindrical stop with outer cone area, guide sleeve with inner cone area having sizes matched to sizes of outer cone area of cylindrical stop and sealant placed in-between as well as sleeve with pin placed in the rod cam slot, the sleeve is fixed from longitudinal movement in regard to the rod and installed so that it may be rotated axially, and braking section. At that sealant is placed at the rod inside housing fixed in guide sleeve by four pins and due to this housing may be moved longitudinally in grooves of guide sleeve.

EFFECT: improved convenience in packer maintaining as additional ground equipment is not required anymore for this purpose.

7 cl, 2 dwg

Soluble bridge plug // 2553717

FIELD: oil and gas industry.

SUBSTANCE: invention relates to the bridge plug to be installed in the well limited by the casing string. The bridge plug includes integrity component to maintain the anchor integrity or structural integrity in the well during usage creating pressure in its top part, at that the specified component is made with possibility of dissolution in the well and out of the material containing chemically active metal, that is selected from a group including aluminium, calcium, magnesium, and alloying element.

EFFECT: invention ensures drilling of the bridge plug.

23 cl, 5 dwg

FIELD: mining.

SUBSTANCE: device comprises a housing with a channel, elastic sealing elements mounted therein on it, between which a piston pair with the sealing rings is placed, and the retaining nut. The working chamber of the piston pair is connected with the housing channel, and in its cylinder a radial hole is made with the ability of communication with the working chamber of the piston pair when packing the well with elastic sealing elements and the additional compression of the elastic sealing elements when hydraulic fracturing pressure with self- locking of the isolated part of the well. The elastic sealing elements are made of soft material and reinforced with rigid elements with different elastic properties.

EFFECT: increase in the sealing capacity of the device and the elastic properties of the elastic sealing elements.

2 dwg

FIELD: oil and gas industry.

SUBSTANCE: invention relates to plugs for the drilled wells where the fluid flows upwards. Plug (102) with walls (104) contains pipe (112), that can be inserted in the drilled well (102), at least one diaphragm (106) out of material impermeable for fluids. At that at least one diaphragm (106) if secured impermeable for fluids in the pipe (112). At that this at least one diaphragm (106) can take state folded in the direction of pipe (112) and state unfolded in the direction from pipe (112) to walls (104). At that the pipe (112) and specified at lest one diaphragm (106) are made such that in state folded in direction to pipe (112) of the specified at least one diaphragm (106) there is a gap (108) between the specified at least one diaphragm (106) and walls (104), when the pipe (112) is inserted in the drilled well (102). At that the specified at least one diaphragm (106) has at least one fixing element. At that hardness of the specified at least one fixing element exceeds hardness of walls (104), so the specified at least one fixing element (302) can penetrate in walls (104), when the specified at least one diaphragm (106) is pressed to walls (104). At that connection with geometric closure between the specified at least one diaphragm (106) and walls (104). Is ensured besides, the plug contains activated means. At that activation of the activated means results in that specified at least one diaphragm (106) can accept state unfolded in direction from pipe (112) to walls (104).

EFFECT: increased efficiency of the well disconnection in case of damages.

4 cl, 6 dwg

FIELD: oil and gas industry.

SUBSTANCE: horizontal well formation treatment device includes a packer containing a through-way housing in an axial direction, which has a shaped slot on outer surface, a yoke with a pin and slips; with that, the pin is installed into the shaped slot and has a possibility of being moved along the shaped slot trajectory, an elastic cuff located between upper and lower supports. The upper support of the packer housing is rigidly connected to a disconnector. The disconnector includes a shaft with radial holes, with upper and lower threads and a spool-type valve located inside the shaft and a shear element connected to it. The spool-type valve is provided with an axial central hole and a mounting seat for a free-fall element dropped inside the device prior to treatment of the formation located above the packer. The lower ring is made in the form of a cover plate screwed on the lower thread of the disconnector shaft. The cover plate is equipped from below with external thread for connection to the passage-through packer housing, and the cover plate is equipped in its centre with a pin rigidly fixed on it and directed towards the spool-type valve, as well as axial holes in a circumferential direction. Carrying capacity of these holes is higher than that of the central hole of the spool-type valve, and the pin has a possibility of tight interaction with the axial central hole of the spool-type valve after the free-fall element is put on the seat of the spool-type valve and axial movement of the spool-type valve relative to the disconnector shaft. The elastic cuff is made in the form of two sealing rubber elements separated from each other with a metal washer. Upper and lower supports are made in the form of plates with a possibility of preventing flowing of the sealing rubber elements beyond their limits at fitting of the packer. Upper and lower supports are provided with flattened cones put at fitting of the packer on the sealing elements of the elastic cuff. The flattened cone of the upper support is directed with its apex in a downward direction, and the flattened cone of the lower support is directed with its apex in an upward direction. The disconnector shaft is provided with two internal annular grooves provided with split-type spring stop rings having a possibility of fixation of the upper end face of the spool-type valve after axial movement of the spool-type valve relative to the disconnector shaft. The free-fall element is made in the form of a stock provided from below with a semi-sphere above which there rigidly installed on the stock is a split-type centraliser made from reinforced rubber, and above the centraliser there rigidly installed on the stock is a solid sealing rubber ring.

EFFECT: horizontal well formation treatment device allows eliminating non-tight fit of the packer of the device in a horizontal formation of the well or loss of tightness of the packer during operation of the device, as well as enlarging functional capabilities of operation of the device and improving its operating reliability.

6 dwg

Circular web // 2550612

FIELD: oil-and-gas industry.

SUBSTANCE: set of invention relates to circular web systems for expansion in ring-like space between well tubular structure and wellbore inner wall. Circular web comprises tubular section of the well. Expanding coupling covers said tubular section and has inner surface facing said tubular section. Note here that every end of expanding coupling is connected with connecting section connected with tubular section. There is the space between coupling inner surface and tubular section. The element is connected with said coupling. Note here that said element has first and second sections located nearby said inner surface. Note also that element first section is secured to said inner surface. Note that second section extends into said space from first section.

EFFECT: higher hardness of said coupling.

19 cl, 27 dwg

FIELD: oil and gas industry.

SUBSTANCE: invention relates to oil industry. To increase tightness of the packer installation in the well the supporting mechanical packer contains body, connected telescopically by means of the cuffs with the support nipple with possibility of their axial movement between each other. The body has a ring seal, connecting coupling, adjustment nut with top pressing ring stop installed in the coupling with possibility to adjust position of the ring seal on the body between stops on the adjustment nut and bush connected with support nipple. In the bush a stepped surface is made resting by step projection against collar on the body. On the collar a groove is made, it interacts with shear pins installed in the bush. On the body triangular notches are made, they interact with collet inside which the counter triangular notches and external cone are made. The collet is located in the cavity of the bush with rest against end of the supporting nipple, and is held against axial movements by lock ring with internal cone interacting with the external cone of the collet to fix the ring seal in compressed state, with possibility of movement along the body to length exceeding compression of the ring seal with radial expansion till tight disconnection of the well cavity. The lock ring is made with groove for additional shear pins installed in the bush.

EFFECT: invention can be used to disconnect the well cavities by packers with radial expansion under axial pressure.

3 cl, 1 dwg

FIELD: transport.

SUBSTANCE: method for installation of rapid-moving eduction column includes passing the rapid-moving column into a well, engagement of key for interaction with occlusion with nipple occlusion, extending interacting with profile key on rapid-moving column to interact with corresponding stopping profile in well shaft wall and thus supporting the rapid-moving column. In this method, interaction of the key with nipple occlusion causes extending the key interacting with profile into engagement with stopping profile.

EFFECT: higher reliability of holding the rapid-moving column while keeping relatively large flow diameter of the column.

29 cl, 8 dwg