CN220748214U

CN220748214U - Wellhead hanging three-way device

Info

Publication number: CN220748214U
Application number: CN202322434696.6U
Authority: CN
Inventors: 刘波; 蔡文; 刘彬
Original assignee: Tianjin Bopu Energy Technology Co ltd
Current assignee: Tianjin Bopu Energy Technology Co ltd
Priority date: 2023-09-08
Filing date: 2023-09-08
Publication date: 2024-04-09
Anticipated expiration: 2033-09-08

Abstract

The application provides a wellhead suspension tee joint device, which comprises a body, wherein a heating pipe cable channel which is penetrated up and down is arranged on the body, one side or two sides of the heating pipe cable channel are provided with a produced liquid channel, and the bottom of the produced liquid channel is communicated with the heating pipe cable channel; a cable channel is arranged on one side of the body and is communicated with the heating pipe cable channel; the well head of this application hangs three way device, can realize the sealed and the play down pipe cable operation of dismantling the well head of hanging of heating pipe cable, make things convenient for the installation and the dismantlement of heating pipe cable, improve heating pipe cable operating efficiency height, can realize heating in the oil production pipe body through this device cooperation heating pipe cable to reach the stifled purpose of melt wax deblocking, realize the normal production of oil well.

Description

Wellhead hanging three-way device

Technical Field

The application relates to the technical field of oil extraction, in particular to a wellhead hanging three-way device.

Background

The oil production pipe used in oil production engineering is a main part of an oil production mechanical system, and when oil field development is carried out, the oil production pipe is installed in a shaft of an oil well to form a part of the mechanical oil production system, and energy medium can be transmitted through the oil production pipe to act on crude oil in the shaft of the oil well, and then the crude oil is conveyed to an oil well to reach the ground.

The oil production pipe column and the oil production tree in the prior art are connected through the flange, a cable channel, a produced liquid channel and a heating cable channel are not arranged on the flange, the use is inconvenient, and heating in the oil production pipe column cannot be realized.

The application number is as follows: CN202210567749.9 in an adjustable wellhead christmas tree device, a technical scheme is disclosed, comprising a bottom plate, a production pipe body, an upper end main valve, a lower end main valve, a secondary wing valve, a main wing valve, a throttle valve, a oil drawing valve and a pressure test meter; the device ensures that the maintenance of the main wing valve can be realized while the Christmas tree continues to work, the exploitation of petroleum can not be influenced, and the exploitation efficiency of petroleum is improved; the bottom plate is connected with the oil production pipe body, the oil production pipe body and the oil production tree body through the flange plates through the combination of the drawing, but a cable channel, a produced liquid channel and a heating cable channel are not arranged on the oil production pipe body, and the cable and the heating cable cannot be arranged at the position, so that the heating of the oil production pipe body cannot be realized.

In summary, a new technical solution is needed to solve the above technical problems.

Disclosure of Invention

The application provides a wellhead suspension tee joint device, which comprises a body, wherein a heating pipe cable channel which is penetrated up and down is arranged on the body, one side or two sides of the heating pipe cable channel are provided with a produced liquid channel, and the bottom of the produced liquid channel is communicated with the heating pipe cable channel; and a cable channel is arranged on one side of the body and is communicated with the heating pipe cable channel.

As a preferable scheme, the periphery of the cable channel is provided with a fixed platform.

As a preferable scheme, the upper part of body and the lower part of body are equipped with connecting portion respectively, and the diameter of connecting portion is greater than the diameter of body, heating cable passageway, output liquid passageway and the connecting portion intercommunication of the upper portion of body and the lower part of body, be equipped with connecting portion mounting hole on the connecting portion.

As a preferable scheme, the upper part of the body and the outer side of the lower part of the body are respectively connected with a mounting flange, and the mounting flange is provided with a mounting hole.

As a preferable scheme, a perforated platform is arranged on the body at one side opposite to the cable channel, and ESP cable holes are arranged on the perforated platform.

As a preferable scheme, the cable channel is used for penetrating through a ground cable, one end of the ground cable is connected with a heating pipe cable in the heating pipe cable channel, and the other end of the ground cable is connected with the medium-frequency control cabinet.

As a preferable scheme, a pipe cable hanger is arranged in the heating pipe cable channel of the wellhead suspension tee joint.

As a preferred scheme, the pipe cable hanger comprises a mounting body, a through hole which is vertically communicated is formed in the mounting body, a side hole is formed in one side of the mounting body and communicated with the through hole, an upper sealing piece is arranged at the top of the mounting body in the through hole, and hanging equipment is connected in the through hole at the lower part of the mounting body.

As a preferred solution, the upper seal member is a plug.

As a preferred solution, a lower seal is provided between the through hole and the suspension device.

As a preferable scheme, the lower sealing member is sealed by a steel pipe.

As a preferable scheme, the through hole is used for placing a heating pipe cable, and the heating pipe cable is connected with a ground cable through the side hole.

As a preferred scheme, a single-core cable traversing device is arranged in the cable channel, and the ground cable and the heating pipe cable are connected through the single-core cable traversing device.

As a preferred scheme, single core cable crossing ware includes crossing ware main part, crossing ware main part and well head and hanging three way connection, crossing ware main part includes main shell main part, and the sealing washer is installed to the one end that main shell main part and cable passageway are connected, and the external screw thread has been seted up to the other end of main shell main part, be provided with insulating conducting rod in the main shell main part, the one end and the heating pipe cable socket connection in the cable passageway are installed to insulating conducting rod, and the other end and the ground cable socket connection of insulating conducting rod.

As a preferable scheme, a fixing plate is arranged outside the main shell body, and a fixing plate mounting hole is formed in the fixing plate.

As a preferable scheme, the external thread of the main shell body is provided with a positioning red point.

As a preferred scheme, single-core cable crossing ware still includes the plug, crossing ware main part and plug cooperation, the plug includes the plug body, is provided with the ground cable socket in the plug body, and the ground cable socket is connected with the ground cable, and the ground cable extends to the outside of plug body, is provided with in the plug body and cooperates the internal thread with the external screw thread.

As a preferable scheme, the outer side of the plug body is provided with anti-skid patterns.

As a preferable scheme, a sealing body is arranged in the main shell main body, the sealing body comprises a hollow cylindrical body, and a sealing element is arranged on the outer side of the hollow cylindrical body.

As a preferable scheme, the main shell body is matched with the locking sleeve during transportation, and an internal thread matched with the external thread is arranged in the locking sleeve.

As a preferable scheme, the plug body is matched with a transportation protection cap during transportation, and an external thread is arranged on the outer side of the transportation protection cap.

As a preferable scheme, the through hole is internally used for placing a heating pipe cable, the heating pipe cable is connected with a ground cable, and the ground cable extends to the outer side of the side hole.

As a preferred solution, a sealing element is arranged between the ground cable and the through hole.

As a preferred solution, the sealing element adopts an electric wire pipeline plugging system.

The wellhead hanging three-way device can realize hanging sealing of the heating pipe cable and lifting and lowering operation of the wellhead without dismantling, is convenient to mount and dismount the heating pipe cable, improves the operation efficiency of the heating pipe cable, and can heat the oil production pipe body by matching with the heating pipe cable, so that the purpose of wax melting and blocking removal is achieved, and normal production of an oil well is realized; preferably, the depth of the heating pipe cable is limited by well deviation, the heating pipe cable is reliable, and the service life of the heating pipe cable is longer than that of a common rubber cable.

Drawings

FIG. 1 is a schematic view of the angle one of the wellhead suspension tee of the present application;

FIG. 2 is a schematic view of the structure of angle two of the wellhead suspension tee of the present application;

FIG. 3 is a schematic view of the cable hanger of the present application mated with a wellhead hanging tee;

FIG. 4 is a schematic illustration of a cable of the present application;

FIG. 5 is a schematic view of the structure of the crossing member body of the present application;

FIG. 6 is a schematic structural view of a plug of the present application;

FIG. 7 is a schematic view of the mating of the penetrator body with a plug of the present application;

FIG. 8 is a cross-sectional view of a wellhead suspension tee of the present application;

1. body 2, heating pipe cable passageway 3, output liquid passageway 4, cable passageway

5. Ground cable 6, heating cable 7, fixing platform 8 and fixing hole

9. Mounting flange 10, connecting portion 11, connecting portion mounting hole 12, and mounting hole

13. Perforated platform 14, ESP cable hole 15, conductor 16, sintered layer

17. Insulation layer 18, wrapping layer 19, armor layer 20, outer tube layer

21. Mounting body 22, through hole 23, side hole 24, upper seal

25. Suspension device 26, lower seal 27, seal 28, single core cable passer

29. Traversing device main body 30, plug 31, main shell main body 32 and sealing ring

33. External thread 34, insulating conductive rod 35, plug body 36, anti-skid pattern

37. Fixing plate 38, fixing plate mounting hole 39, fixing bolt 40, and sealing body

41. Hollow cylindrical body 42, sealing element 43, locking sleeve 46, shipping protection cap.

Detailed Description

The following describes embodiments of the present utility model in detail with reference to fig. 1 to 8. It should be noted that the detailed description herein is presented for purposes of illustration and explanation only and is not intended to limit the utility model.

Embodiment one:

the present embodiment describes a wellhead suspension tee 7, specifically:

as shown in fig. 1, 2 and 3, the wellhead suspension tee device comprises a body 1, wherein the body 1 is preferably cylindrical in order to facilitate installation and save materials, and a heating pipe cable channel 2 which is vertically penetrated is formed in the body 1, namely, a penetrating heating pipe cable channel 2 is formed between the upper end surface and the lower end surface of the body 1; one side or two sides of the heating pipe cable channel 2 are provided with a produced liquid channel 3, the produced liquid channel 3 is used for extracting oil, and the bottom of the produced liquid channel 3 is communicated with the heating pipe cable channel 2; a cable channel 4 is arranged on one side of the body 1, the cable channel 4 is communicated with the heating pipe cable channel 2, the cable channel 4 is used for placing a ground cable 5, and the ground cable 5 is connected with the heating pipe cable 6; preferably, the periphery of the cable channel 4 is provided with a fixing platform 7, so that other connecting pieces can be conveniently installed later, preferably, the fixing platform 7 is preferably a rectangular or square platform, and the periphery of the cable channel 4 on the fixing platform 7 is provided with a fixing hole 8.

Preferably, in order to facilitate the connection between the body 1 and the pipe body, and between the body 1 and the christmas tree, the upper part and the lower part of the body are respectively provided with a connecting part 10, the diameter of the connecting part 10 is larger than that of the body 1, the connecting part 10 and the upper part and the lower part of the body 1 can be connected by welding, screw connection, bolt connection, threaded connection and other common connection modes in the prior art, and can also be formed in an integrated forming mode, the heating pipe cable channel 2 and the produced liquid channel 3 are communicated with the connecting parts of the upper part and the lower part of the body 1, the connecting part 10 is provided with a connecting part mounting hole 11, and the wellhead hanging three-way device is mounted by the cooperation of the connecting part 10 and the connecting part mounting hole 11; in order to facilitate the connection between the body 1 and the pipe body or the christmas tree, another structure is provided in this embodiment, specifically, the upper part of the body 1 and the outer side of the lower part of the body are respectively connected with a mounting flange 9, the upper end surface of the mounting flange 9 is provided with a mounting hole 12 which is penetrated up and down, and the mounting flange 9 and the mounting hole 12 are matched to be used for connection with the pipe body or the christmas tree; the mounting flange 9 and the outer sides of the upper part of the body 1 and the lower part of the body are connected by welding, bonding, etc., and may be formed by an integral forming method.

Preferably, a perforated platform 13 is provided on the body 1 on the opposite side of the cable channel 4, an ESP cable hole 14 is provided on the perforated platform 13, and the ESP cable hole 14 is used for extending an ESP cable into a pipe body and supplying power to an ESP (electric submersible pump) unit in a production string, so as to realize the process of oil extraction.

Preferably, the heating cable 6 comprises a conductor 15, wherein the conductor 15 is made of copper, aluminum or the like, and a sintering layer 16, an insulating layer 17, a wrapping layer 18, an armor layer 19 and an outer pipe layer 20 are sequentially arranged on the outer side of the conductor 15; the insulating layer 17 is made of a high polymer material, wherein the high polymer material is one of rubber, plastic, fiber and the like, and the insulating layer 17 ensures good insulating performance and improves the insulating performance of the heating cable 6; the conductor 15, the sintered layer 16 and the insulating layer 17 are protected by the wrapping layer 18 to prevent the layers from being damaged, the armor layer 19 is a steel tape armor layer, the arrangement of the armor layer 19 has good effect of resisting external damage, the complex environment resistance is good, the main structure of the cable is not damaged by severe vibration, the service life of the heating cable 6 is prolonged, an outer tube layer 20 is arranged outside the armor layer 19, and preferably, the outer tube layer 20 is carbon steel; the heating cable 6 is guaranteed to have rigidity, convenient to install, the lower thrust of equipment is gone into in the cooperation, well deviation restriction is little.

Embodiment two:

the embodiment provides a specific application occasion, and a pipe cable hanger is arranged in the heating pipe cable channel 2 of the wellhead hanging tee joint.

The pipe cable hanger comprises a mounting body 21, a through hole 22 penetrating up and down is formed in the mounting body 21, a side hole 23 is formed in one side of the mounting body 21 and is communicated with the through hole 22, an upper sealing piece 24 is arranged at the top of the mounting body 21 in the through hole 22, preferably, a plug is adopted for the upper sealing piece 24, a hanging device 25 is arranged in the through hole 22 at the lower part of the mounting body 21, a slip in the prior art is adopted for the hanging device 25, the slip is used for clamping a heating pipe cable 6, a lower sealing piece 26 is arranged between the heating pipe cable 6 and the through hole 22, and preferably, the lower sealing piece 26 is sealed by a steel pipe.

The heating pipe cable 6 is placed in the through hole 22, the heating pipe cable 6 is clamped and hung through the hanging device 25, the heating pipe cable 6 is connected with the ground cable 5 through the side hole 23, the ground cable 5 is connected with the medium frequency control cabinet, the heating pipe cable 6 is powered through the medium frequency control cabinet, and the heating frequency of the heating pipe cable 6 is controlled; in another technical scheme, a heating cable 6 is placed in the through hole 22, the heating cable 6 is connected with a ground cable 5, the ground cable 5 extends to the outside through a side hole 23, and a sealing piece 27 is arranged between the ground cable 5 and the through hole 22; preferably, the sealing member 27 is a wire-pipe plugging system in the prior art, such as a single wire-pipe plugging system of Goodel, which is well known in the art and will not be described in detail herein.

Because the heating pipe cable 6 of this application has rigidity, place heating pipe cable 6 in through-hole 22, heating pipe cable 6 is connected with ground cable 5, and when this kind of condition that ground cable 5 extends to the outside through side opening 23, the through-hole 22 adopts the elbow transition with the department of bending of side opening 23.

Embodiment III:

in this embodiment, in order to ensure the tightness of the cable channel 4, the connection between the ground cable 5 and the heating cable 6 is facilitated, and the stability of the connection between the ground cable 5 and the heating cable 6 is improved, and the ground cable 5 and the heating cable 6 are connected by the single-core cable traversing device 28, and when connected by the single-core cable traversing device 28, the ground cable 5 does not need to be inserted into the through hole 22; specifically, as shown in fig. 7, the single-core cable transit 28 includes a transit body 29 and a plug 30; the device is suitable for the situation that only the heating pipe cable 6 is placed in the through hole 22 in the second embodiment, and the heating pipe cable 6 is connected with the ground cable 5 through the side hole 23.

Specifically: the traversing device main body 28 is arranged in the cable channel 4 of the wellhead suspension three-way device; as shown in fig. 5, the traversing device main body 28 includes a main housing main body 31, the main housing main body 31 adopts a hollow cylindrical shape, a sealing ring 32 is installed at one end of the main housing main body 31 connected with the cable channel 4, an external thread 33 is provided at the other end of the main housing main body 31, an insulating conductive rod 34 is in interference fit in the main housing main body 31, one end of the insulating conductive rod 34 installed in the cable channel 4 is connected with a heating cable socket (not shown in the figure), the heating cable socket adopts an aviation single-core socket in the prior art, the heating cable socket is arranged at the end of the heating cable 6 connected with the ground cable 5, and the other end of the insulating conductive rod 34 is connected with a ground cable socket of the plug 30; the single-core cable penetrator 28 further includes a plug 30, and the penetrator body 28 is matched with the plug 30, specifically: the plug 30 comprises a plug body 35, the plug body 35 is preferably hollow cylindrical, a ground cable socket is arranged in the plug body 35, the ground cable socket is arranged in the plug body 35 in an interference fit mode and the like, the ground cable socket is connected with one end of a ground cable 5 in the prior art, the ground cable 5 extends to the outer side of the plug body 35, an internal thread matched with an external thread 33 is arranged in the plug body 35, preferably, in order to improve friction force and prevent slipping during installation, an anti-slip pattern 36 is arranged on the outer side of the plug body 35; when the cable plug is used, the external thread 33 of the main shell body 31 is screwed into the external thread in the plug body 35, so that the insulating conducting rod 34 is inserted into the ground cable socket to realize the connection between the insulating conducting rod 34 and the ground cable 5, then the other end of the main shell body 31 is arranged in the cable channel 4, the other end of the insulating conducting rod 34 is connected with the heating cable socket to realize the connection between the insulating conducting rod 34 and the heating cable 6 and the ground cable 5, and after the power is turned on, the conduction is realized; preferably, in order to facilitate the positioning and installation of the penetrator body 29, the external thread 33 of the main housing body 31 is provided with a positioning red spot.

Preferably, in order to improve the stability of the installation of the single-core cable traversing device 28, the fixing plate 37 is disposed outside the main casing body 31, the fixing plate 37 and the main casing body 31 are connected by bonding, welding, or the like, or may be formed by integrally forming, the fixing plate 37 is provided with a fixing plate mounting hole 38, the fixing plate 37 contacts with the fixing platform 7, and the fixing connection is realized through the fixing bolt 39, so that the connection between the traversing device body 28 and the cable channel 4 is realized, and not only the connection between the ground cable 5 and the heating cable 6, but also the tightness of the cable channel 4 is ensured.

Preferably, in order to further improve the tightness between the penetrator body 28 and the plug 30, a sealing body 40 is disposed in the main housing body 31, the sealing body 40 includes a hollow cylindrical body 41, a sealing element 42 is disposed on the outer side of the hollow cylindrical body 41, the sealing element 42 adopts a sealing ring, etc., and the sealing body 40 is disposed in the main housing body 31, so as to further ensure tightness between the main housing body 31 and the plug body 35.

Preferably, in order to facilitate protection of the external thread 33 of the main housing body 31 and the internal thread of the plug body 35 in the transportation process, a locking sleeve 43 matched with the external thread 33 is arranged on the outer side of the external thread 33, an internal thread matched with the external thread 33 is arranged in the locking sleeve 43, and the locking sleeve 43 is sleeved on the outer side of the main housing body 31 in the transportation process, so that the external thread 33 of the main housing body 31 is protected, the threads are prevented from being damaged in the transportation process in the subsequent installation process, and the tightness cannot be ensured; preferably, in order to be convenient for protect the internal thread of plug body 35 in the transportation, one side of plug body 35 is equipped with transportation protection cap 46, and the outside of transportation protection cap 46 is equipped with the external screw thread, in the internal thread of screwing in plug body 35 with transportation protection cap 46, protects the internal thread, and the screw thread is impaired in the transportation when preventing follow-up installation, can't guarantee the leakproofness.

The utility model discloses a heating pipe cable 6 is convenient to install and dismantle by setting up the cable and hanging tee bend device, can realize the sealed and dismantling the operation of heating pipe cable 6 of starting of well head, and it is high to improve heating pipe cable 6 operating efficiency, and heating pipe cable 6 goes into the degree of depth and receives well incline restriction little, heating pipe cable 6 reliable, life is longer than general rubber cable, can realize heating the inside of oil production tubular column through this application to reach the stifled purpose of wax melting deblocking, realize the normal production of oil well.

The above devices, connection relationships, etc. which are not specifically described belong to the prior art, and the present utility model is not specifically described herein.

The preferred embodiments of the present application have been described in detail above with reference to the accompanying drawings, but the present application is not limited to the specific details of the foregoing embodiments, and various simple modifications may be made to the technical solutions of the present application within the scope of the technical concept of the present application, and all the simple modifications belong to the protection scope of the present application.

In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations of the present utility model are not described in detail.

Moreover, any combination of the various embodiments of the present application may be made without departing from the spirit of the present application, which is also to be considered as disclosed herein.

Claims

1. The wellhead suspension three-way device comprises a body (1), and is characterized in that a heating pipe cable channel (2) which is vertically communicated is formed in the body (1), one side or two sides of the heating pipe cable channel (2) are provided with a production liquid channel (3), and the bottom of the production liquid channel (3) is communicated with the heating pipe cable channel (2); one side of the body (1) is provided with a cable channel (4), and the cable channel (4) is communicated with the heating pipe cable channel (2).

2. A wellhead suspension tee arrangement according to claim 1, characterized in that the periphery of the cable channel (4) is provided with a fixed platform (7).

3. The wellhead hanging three-way device according to claim 1, characterized in that the upper part of the body (1) and the lower part of the body (1) are respectively provided with a connecting part (10), the diameter of the connecting part (10) is larger than that of the body (1), the heating pipe cable channel (2) and the produced fluid channel (3) are communicated with the connecting parts (10) of the upper part of the body (1) and the lower part of the body (1), and the connecting parts (10) are provided with connecting part mounting holes (11).

4. The wellhead hanging three-way device according to claim 1, characterized in that the upper part of the body (1) and the outer side of the lower part of the body (1) are respectively connected with a mounting flange (9), and the mounting flange (9) is provided with a mounting hole (12).

5. The wellhead suspension tee joint device according to claim 1, characterized in that a perforated platform (13) is arranged on the body (1) at the opposite side of the cable channel (4), and ESP cable holes (14) are arranged on the perforated platform (13).

6. The wellhead hanging tee joint device according to claim 1, characterized in that the cable channel (4) is used for penetrating a ground cable (5), one end of the ground cable (5) is connected with a heating pipe cable (6) in the heating pipe cable channel (2), and the other end of the ground cable (5) is connected with an intermediate frequency control cabinet.

7. A wellhead suspension tee assembly according to claim 1, characterized in that a umbilical hanger is mounted in the heating umbilical channel (2) of the wellhead suspension tee.

8. The wellhead hanging three-way device according to claim 7, characterized in that the pipe cable hanger comprises a mounting body (21), a through hole (22) penetrating up and down is formed in the mounting body (21), a side hole (23) is formed in one side of the mounting body (21), the side hole (23) is communicated with the through hole (22), an upper sealing piece (24) is arranged at the top of the mounting body (21) in the through hole (22), and hanging equipment (25) is connected in the through hole (22) at the lower part of the mounting body (21).

9. Wellhead suspension tee arrangement according to claim 6, characterized in that a single-core cable feedthrough (28) is installed in the cable channel (4), the ground cable (5) being connected to the heating cable (6) by means of the single-core cable feedthrough (28).

10. The wellhead suspension tee device according to claim 9, characterized in that the single-core cable traversing device (28) comprises a traversing device main body (29), the traversing device main body (29) is connected with the wellhead suspension tee, the traversing device main body (29) comprises a main shell main body (31), a sealing ring (32) is installed at one end of the main shell main body (31) connected with the cable channel (4), an external thread (33) is arranged at the other end of the main shell main body (31), an insulating conducting rod (34) is arranged in the main shell main body (31), one end of the insulating conducting rod (34) installed in the cable channel (4) is connected with a heating cable socket, and the other end of the insulating conducting rod (34) is connected with a ground cable socket of the plug (40).