CN219387812U

CN219387812U - Coiled tubing connector

Info

Publication number: CN219387812U
Application number: CN202320616331.2U
Authority: CN
Inventors: 李富国; 孙树文
Original assignee: Daqing Chenping Drilling Technology Service Co ltd
Current assignee: Daqing Chenping Drilling Technology Service Co ltd
Priority date: 2023-03-26
Filing date: 2023-03-26
Publication date: 2023-07-21
Anticipated expiration: 2033-03-26

Abstract

The utility model discloses a continuous oil pipe connector, and relates to the technical field of continuous oil pipes. The coiled tubing connector comprises two coiled tubing, wherein threads are formed on the outer surface of the coiled tubing, connecting sleeves are sleeved on the outer surfaces of the two threads, rotating blocks are fixedly sleeved on the outer surfaces of the two connecting sleeves, rotating devices are arranged on the outer surfaces of the connecting sleeves, two grooves are formed in the inner walls of the two connecting sleeves, discs are rotatably sleeved on the inner walls of the two grooves, the rotating devices comprise protective covers, the protective covers are rotatably sleeved on the outer surfaces of the connecting sleeves, the left surfaces of the protective covers are rotatably connected with the rotating blocks, outlet pipes are fixedly connected with the outer surfaces of the protective covers, the displacement of the connecting rods drives gears to carry out rotational displacement, the gears drive the connecting sleeves to displace so as to facilitate disassembly of cracked coiled tubing, the speed of replacing the coiled tubing is accelerated, the working efficiency is improved, and the labor intensity is reduced.

Description

Coiled tubing connector

Technical Field

The utility model relates to the technical field of coiled tubing, in particular to a coiled tubing connector.

Background

The coiled tubing is a tubing made of low-carbon alloy steel, has good flexibility, is also called a coiled tubing, has a length of a coil of the coiled tubing of thousands of meters, can replace a conventional tubing to carry out a plurality of operations, has the characteristics of pressurized operation and continuous lifting, has small equipment volume, quick operation period and low cost, and can be used for carrying out the next underground operation in various underground operations such as drilling, well completion, well logging, well repair and the like, the connector is an important component for connecting the coiled tubing with an operation tool, and the coiled tubing is used for both drilling and underground operation, and is connected with the operation tool by a special connector.

At present, most oil pipe connectors do not have the function of quick connection, so when the connector is used underground by workers to replace and install the connecting oil pipe, the underground space is narrow and the disassembly and the replacement of the continuous oil pipe are inconvenient, the unnecessary time is wasted, the labor intensity of the workers is greatly increased, certain defects exist, and the practicability of the connector is reduced.

Disclosure of Invention

The utility model aims to at least solve one of the technical problems in the prior art, and provides a continuous oil pipe connector which can solve the problem that a continuous oil pipe is inconvenient to detach and install when being replaced underground.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a coiled tubing connector, includes two coiled tubing, two coiled tubing's surface has all offered the screw thread, and the adapter sleeve has all been cup jointed to the surface of two screw threads, and the rotor has all been fixedly cup jointed to the surface of two adapter sleeves, and the surface of adapter sleeve is provided with rotating device, and two recesses have been seted up to the inner wall of two adapter sleeves, and the disc has all been rotated to the inner wall of two recesses.

Preferably, the rotating device comprises a protecting cover, the protecting cover is rotationally sleeved on the outer surface of the connecting sleeve, the left surface of the protecting cover is rotationally connected with the rotating block, and an outlet pipe is fixedly connected with the outer surface of the protecting cover.

Preferably, the inner wall fixedly connected with ring of outlet pipe, the upper surface fixedly connected with spring of ring, the upper end fixedly connected with connecting rod of spring, the surface fixed sleeve of adapter sleeve has cup jointed the gear.

Preferably, the connecting rod is in sliding connection with the outlet pipe, the lower end of the connecting rod is in sliding connection with the gear, and the lower end of the connecting rod is in sliding connection with the inner wall of the circular ring.

Preferably, the inner walls of the four discs are fixedly sleeved with rotating pipes, the outer surfaces of the rotating pipes are fixedly connected with two sealing rings, the two sealing rings are rotationally connected with the connecting sleeves, and the rotating pipes are rotationally connected with the two connecting sleeves.

Preferably, the inner wall fixedly connected with fixed block of safety cover, one side that the rotating block is close to the safety cover fixedly connected with fixed plate, the preceding surface fixedly connected with compression spring of fixed block, compression spring keep away from the one end and fixed plate fixed connection of fixed block.

Compared with the prior art, the utility model has the beneficial effects that:

(1) When the broken coiled tubing is required to be disassembled, the existing fixture is used for rotating the loosening connecting sleeve, the existing tool is used for pressing down the inside of the outlet pipe, the tool is pressed down for pressing down the connecting rod, the spring is driven to move downwards by pressing down of the connecting rod, the ring is applied with pressure by downward movement of the spring, when the connecting rod moves downwards, the lower end of the connecting rod is contacted with the gear and is clamped, the existing tool is moved to move the outlet pipe, the protecting cover is driven to rotate by movement of the outlet pipe, the connecting rod is driven to move by rotation movement of the protecting cover, the gear is driven to move by movement of the connecting rod, the connecting sleeve is driven to move to facilitate disassembly of the broken coiled tubing, the speed of replacing the coiled tubing is accelerated, the working efficiency is improved, and the labor intensity is reduced.

(2) This coiled tubing connector, when the safety cover rotates and drives the fixed block and rotate the displacement, the rotation displacement of fixed block drives pressure spring and compresses to the fixed plate, after rotating the gear, current instrument rotates when the restriction position, current instrument upwards slides and makes the automatic re-setting of spring drive the connecting rod upwards displacement, when the gear is kept away from in upward displacement of connecting rod, pressure spring carries out automatic re-setting to the power of fixed plate, pressure spring's power drives the fixed block and carries out the displacement, the displacement of fixed block makes the safety cover automatic re-setting, make current instrument quick dismouting to the adapter sleeve, the progress of work has been accelerated, can make coiled tubing put into work more soon, improve the oil pumping output.

(3) This coiled tubing connector cup joints two adapter sleeves in the screw thread department on coiled tubing, with current anchor clamps clamp two rotating blocks, rotate current anchor clamps and rotate two rotating blocks, rotate two adapter sleeves respectively, the rotation of two adapter sleeves carries out threaded connection to coiled tubing, the rotation of two adapter sleeves rotates four discs, the workman of being convenient for carries out threaded connection simultaneously to coiled tubing at both ends respectively with current anchor clamps, installation rate has been accelerated, time has been saved, the faster use of coiled tubing has been ensured, and the practicality has been increased.

Drawings

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

FIG. 1 is a schematic diagram of the present utility model;

FIG. 2 is a schematic view of a connecting sleeve according to the present utility model;

FIG. 3 is a schematic view of a ring according to the present utility model;

FIG. 4 is a schematic plan view of the present utility model;

FIG. 5 is a schematic view of a pressure spring of the present utility model;

fig. 6 is a schematic view of a gear according to the present utility model.

Reference numerals: 1. a coiled tubing; 2. a thread; 3. connecting sleeves; 4. a rotating block; 5. a disc; 6. a protective cover; 7. an outlet tube; 8. a circular ring; 9. a spring; 10. a connecting rod; 11. a gear; 12. a rotary tube; 13. a seal ring; 14. a groove; 15. a fixed block; 16. a fixing plate; 17. and a pressure spring.

Detailed Description

Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, greater than, less than, exceeding, etc. are understood to exclude this number, and above, below, within, etc. are understood to include this number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1-6, the present utility model provides a technical solution: the utility model provides a coiled tubing connector, includes two coiled tubing 1, and screw thread 2 has all been seted up to the surface of two coiled tubing 1, and adapter sleeve 3 has all been cup jointed to the surface of two screw threads 2 screw thread, and the rotor 4 has all been fixedly cup jointed to the surface of two adapter sleeves 3, and the surface of adapter sleeve 3 is provided with rotating device, and two recesses 14 have been seted up to the inner wall of two adapter sleeves 3, and the disc 5 has all been cup jointed in the inner wall of two recesses 14 rotation.

Further, rotating device includes safety cover 6, safety cover 6 rotates and cup joints the surface at adapter sleeve 3, the left surface of safety cover 6 rotates with rotatory piece 4 to be connected, the surface fixedly connected with outlet pipe 7 of safety cover 6, the inner wall fixedly connected with ring 8 of outlet pipe 7, the last fixed surface of ring 8 is connected with spring 9, the upper end fixedly connected with connecting rod 10 of spring 9, connecting rod 10 and outlet pipe 7 sliding connection, the surface fixing of adapter sleeve 3 cup joints gear 11, the lower extreme of connecting rod 10 and gear 11's sliding connection, the lower extreme of connecting rod 10 and the inner wall sliding connection of ring 8.

Further, the inner walls of the four discs 5 are fixedly sleeved with a rotating pipe 12, the outer surface of the rotating pipe 12 is fixedly connected with two sealing rings 13, the two sealing rings 13 are rotationally connected with the connecting sleeves 3, and the rotating pipe 12 is rotationally connected with the two connecting sleeves 3.

Further, the inner wall fixedly connected with fixed block 15 of safety cover 6, the one side that rotates the piece 4 and is close to safety cover 6 fixedly connected with fixed plate 16, the front surface fixedly connected with compression spring 17 of fixed block 15, the one end that compression spring 17 kept away from fixed block 15 and fixed plate 16 fixed connection.

Further, when the device is used, when the connector is needed to connect the coiled tubing 1, the two connecting sleeves 3 are sleeved at the screw thread 2 on the coiled tubing 1, the two rotating blocks 4 are clamped by the existing clamp, the two rotating blocks 4 are rotated by the existing clamp, the two connecting sleeves 3 are respectively rotated, the coiled tubing 1 is screwed by the rotation of the two connecting sleeves 3, the four discs 5 are rotated by the rotation of the two connecting sleeves 3, the coiled tubing 1 at two ends is screwed by workers conveniently and respectively by the existing clamp, the installation speed is accelerated, the time is saved, the use of the coiled tubing 1 is ensured to be faster, and the practicability is improved.

Further, when the device is used, when coiled tubing 1 breaks and changes in the well, when broken coiled tubing 1 needs to be disassembled, the existing clamp is used for rotating and loosening connecting sleeve 3 to rotating block 4, at the moment, the existing tool is used for pressing down the inside of outlet pipe 7, pressing down of the tool is used for pressing down connecting rod 10, pressing down of connecting rod 10 drives spring 9 to move downwards, downward displacement of spring 9 applies pressure to ring 8, when connecting rod 10 moves downwards, the lower end of connecting rod 10 contacts gear 11 and is clamped, the existing tool is used for driving outlet pipe 7 to move, the displacement of outlet pipe 7 drives protective cover 6 to rotate, the rotational displacement of protective cover 6 drives connecting rod 10 to move, gear 11 drives connecting sleeve 3 to move so as to facilitate disassembly of broken coiled tubing 1, work efficiency is improved, and labor intensity is relieved.

Further, when the device is used, when the protection cover 6 rotates, the fixed block 15 is driven to rotate and displace, the rotation displacement of the fixed block 15 drives the pressure spring 17 to compress towards the fixed plate 16, after the gear 11 is rotated, when the existing tool rotates to a limiting position, the existing tool slides upwards, so that the automatic reset of the spring 9 drives the connecting rod 10 to displace upwards, when the upward displacement of the connecting rod 10 is far away from the gear 11, the pressure spring 17 automatically resets the force of the fixed plate 16, the force of the pressure spring 17 drives the fixed block 15 to displace, the displacement of the fixed block 15 enables the protection cover 6 to automatically reset, the existing tool can rapidly disassemble and assemble the connecting sleeve 3, the working progress is accelerated, the continuous oil pipe 1 can be put into work faster, and the oil pumping output is improved.

Working principle: when the device is used, when the connector is needed to connect the continuous oil pipe 1, two connecting sleeves 3 are sleeved at the screw threads 2 on the continuous oil pipe 1. The two rotating blocks 4 are clamped by the existing clamp, the two rotating blocks 4 are rotated by the existing clamp, the two connecting sleeves 3 are respectively rotated, the coiled tubing 1 is connected by threads through the rotation of the two connecting sleeves 3, the four circular discs 5 are rotated through the rotation of the two connecting sleeves 3, workers can conveniently and respectively and simultaneously screw the coiled tubing 1 at the two ends by the existing clamp, when the coiled tubing 1 is broken and replaced in a well, the connecting sleeves 3 are loosened by the rotation of the rotating blocks 4 by the existing clamp when the broken coiled tubing 1 is required to be disassembled, the existing tool is pushed down inside the outlet pipe 7, the connecting rod 10 is pushed down by the tool, the spring 9 is driven to downwards displace by the downward displacement of the spring 9, the circular ring 8 is pressurized by the downward displacement of the connecting rod 10, the lower end of the connecting rod 10 is contacted with the gear 11 and clamped, the existing tool is displaced to drive the outlet pipe 7 to displace, the displacement of the outlet pipe 7 drives the protective cover 6 to rotate, the rotational displacement of the protective cover 6 drives the connecting rod 10 to displace, the displacement of the connecting rod 10 drives the gear 11 to rotate, the gear 11 drives the connecting sleeve 3 to displace to facilitate the disassembly of the broken coiled tubing 1, when the protective cover 6 rotates, the fixed block 15 is driven to rotate and displace, the rotational displacement of the fixed block 15 drives the pressure spring 17 to compress towards the fixed plate 16, when the existing tool rotates to a limiting position after the gear 11 rotates, the existing tool slides upwards to enable automatic reset of the spring 9 to drive the connecting rod 10 to displace upwards, when the upward displacement of the connecting rod 10 is far away from the gear 11, the pressure spring 17 automatically resets the force of the fixed plate 16, the force of the pressure spring 17 drives the fixed block 15 to displace, the displacement of the fixed block 15 enables the protective cover 6 to automatically reset, so that the connecting sleeve 3 is quickly disassembled and assembled by the existing tool.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims

1. A coiled tubing connector comprising two coiled tubing (1), characterized in that: screw threads (2) are arranged on the outer surfaces of the two continuous oil pipes (1), connecting sleeves (3) are sleeved on the outer surfaces of the two screw threads (2), rotating blocks (4) are fixedly sleeved on the outer surfaces of the two connecting sleeves (3), rotating devices are arranged on the outer surfaces of the connecting sleeves (3), two grooves (14) are formed in the inner walls of the two connecting sleeves (3), and discs (5) are rotatably sleeved on the inner walls of the two grooves (14).

2. A coiled tubing connector as claimed in claim 1, wherein: the rotating device comprises a protecting cover (6), the protecting cover (6) is rotationally sleeved on the outer surface of the connecting sleeve (3), the left surface of the protecting cover (6) is rotationally connected with the rotating block (4), and an outlet pipe (7) is fixedly connected with the outer surface of the protecting cover (6).

3. A coiled tubing connector as claimed in claim 2, wherein: the inner wall fixedly connected with ring (8) of outlet pipe (7), the upper surface fixedly connected with spring (9) of ring (8), the upper end fixedly connected with connecting rod (10) of spring (9), the surface fixed sleeve of adapter sleeve (3) has gear (11) cup jointed.

4. A coiled tubing connector as claimed in claim 3, wherein: the connecting rod (10) is in sliding connection with the outlet pipe (7), the lower end of the connecting rod (10) is in sliding connection with the gear (11), and the lower end of the connecting rod (10) is in sliding connection with the inner wall of the circular ring (8).

5. A coiled tubing connector as claimed in claim 1, wherein: the inner walls of the four discs (5) are fixedly sleeved with rotating pipes (12), the outer surfaces of the rotating pipes (12) are fixedly connected with two sealing rings (13), the two sealing rings (13) are rotationally connected with the connecting sleeves (3), and the rotating pipes (12) are rotationally connected with the two connecting sleeves (3).

6. A coiled tubing connector as claimed in claim 2, wherein: the inner wall fixedly connected with fixed block (15) of safety cover (6), one side fixedly connected with fixed plate (16) that the rotating block (4) is close to safety cover (6), the preceding surface fixedly connected with pressure spring (17) of fixed block (15), the one end and fixed plate (16) fixed connection that fixed block (15) were kept away from to pressure spring (17).