CN219691501U - Continuous oil pipe anchor - Google Patents
Continuous oil pipe anchor Download PDFInfo
- Publication number
- CN219691501U CN219691501U CN202320773798.8U CN202320773798U CN219691501U CN 219691501 U CN219691501 U CN 219691501U CN 202320773798 U CN202320773798 U CN 202320773798U CN 219691501 U CN219691501 U CN 219691501U
- Authority
- CN
- China
- Prior art keywords
- anchor
- upper joint
- wall
- central rod
- end part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 17
- 238000005553 drilling Methods 0.000 abstract description 10
- 239000012530 fluid Substances 0.000 abstract description 10
- 230000009286 beneficial effect Effects 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
Abstract
The utility model discloses a continuous oil pipe anchor, which comprises an upper joint, wherein the inner side of the end part of the upper joint is connected with a central rod, a sealing ring is arranged between the inner side of the upper joint and the outer side of the central rod, a cone is arranged at the outer side of the end part of the upper joint, a spring is nested at the outer side of the central rod, an adjusting sleeve is nested at the end part of an anchor sheet, a lower joint is arranged on the inner wall of the adjusting sleeve, the end part of the lower joint is positioned at the outer part of the end part of the central rod, drilling fluid is injected into the upper joint on the oil pipe anchor, then the drilling fluid in the upper joint enters the central rod, the drilling fluid enters a hollow cavity through an overflow hole on the central rod, then enters a sealing cavity formed by an anchor sheet and a piston sleeve through the hollow cavity, the piston sealing part on the anchor sheet moves upwards along with the increase of pressure, and the anchor sheet stretches out of a tool body to be blocked with the oil pipe to form an anchor without manual fixing, and the fixing efficiency is improved.
Description
Technical Field
The utility model relates to the technical field of petroleum exploitation tools, in particular to a continuous oil pipe anchor.
Background
The tubing anchor is a tool for anchoring the tubing on the tubing to prevent the tubing from moving up and down, and is attached to the inner wall of the tubing, so that the tubing string is relatively fixed on the tubing, and the tubing string cannot creep along with the up and down movement of the sucker rod. The oil extraction efficiency of the oil pump is improved, and the problem that the oil pipe string falls into the bottom of the well due to the fact that the oil pipe string is repeatedly stretched and contracted to generate fatigue and then break is solved.
The novel tubing anchor comprises a central tube, a rotary push block, a righting cylinder, a tube fixing seat and four positioning claw assemblies, wherein the upper end of the central tube is connected with a limiting ring through threads, and the lower end of the central tube is connected with the center of the tube fixing seat in a rotary fit manner; the rotary pushing block is connected to the central tube through threads, and the limiting ring is arranged at the upper end of the rotary pushing block; four inclined rectangular sliding grooves are formed in the outer side face of the rotary pushing block; four vertical sliding grooves and four sliding rod grooves are formed in the barrel surface of the centralizing barrel, and the four sliding rod grooves are respectively arranged at the lower ends of the four vertical sliding grooves; two ends of the pipe fixing seat are fixedly connected to the bottom end of the centralizing cylinder; the novel tubing anchor has the advantages of accurate positioning, good stability, difficult loosening and the like, is suitable for tubing with different diameters, and has good applicability.
The above issued patents have the following problems:
the manual rotation center tube is needed, so that the four claw bodies are fixed with the oil pipe, the oil pipe is long, the oil pipe anchor is needed to be manually operated when the oil pipes with different heights are fixed, the oil pipe at the moment is fixed in the oil pipe, time and labor are wasted in operation, and manual disassembly is needed in the later stage.
Aiming at the problems, the novel design is carried out on the basis of the original oil pipe anchor.
Disclosure of Invention
The utility model aims to provide a continuous tubing anchor, drilling fluid enters the inside of a central rod through an upper joint, enters a hollow cavity through an overflow hole on the central rod, then enters a sealing cavity formed by an anchor sheet and a piston sleeve through the hollow cavity, and as pressure is increased, a piston sealing part on the anchor sheet moves upwards and compresses a spring simultaneously, the anchor sheet extends out of a tool body along a cone body and is blocked with an oil tube to form an anchor, and when the pressure in the tool is low, the anchor sheet is pulled back into the body under the action of the spring to release the anchor, so that the tubing anchor and the oil tube can be conveniently detached and installed.
The utility model is realized by the following technical scheme:
the utility model provides a coiled tubing anchor, includes the upper joint, the inboard of upper joint tip is connected with the center pole, and is provided with the sealing washer between the outside of the inboard of upper joint and center pole, the outside of upper joint tip is provided with the centrum, the outside nestification of center pole has the spring, the outside of centrum and center pole is all nested has the anchor piece, the both ends of spring respectively with the ladder interconnect of the ladder outside the center pole and the inboard ladder interconnect of anchor piece, the outside nestification of anchor piece has the piston cover, the outer wall of center pole is located the tip nestification of anchor piece has the adjustment sleeve, the adjustment sleeve is located the inside of piston cover, the lower clutch is installed to the inner wall of adjustment sleeve, and the tip of lower clutch is located the outside of center pole tip, the overflow hole has been seted up to the top of center pole is located the inside of adjustment sleeve.
Further provided is that: threads are arranged on the inner side of the end part of the upper joint and the outer side of the end part of the central rod, and the upper joint is in threaded connection with the central rod.
Further provided is that: the outer side of the end part of the upper joint and the inner side of the end part of the cone are provided with threads, the upper joint is in threaded connection with the cone, and the inner side of the cone and the outer wall of the center rod are mutually attached.
Further provided is that: the inner side of the piston sleeve is mutually attached to the outer side of the anchor sheet, and the inner side of the anchor sheet is mutually attached to the outer side of the central rod.
Further provided is that: a hollow cavity is arranged between the outer wall of the central rod and the inner side of the adjusting sleeve.
Further provided is that: the inner side of the adjusting sleeve is in threaded connection with the outer side of the lower joint, the outer wall of the adjusting sleeve is mutually attached to the inner side of the piston sleeve, the inner side of the lower joint is in threaded connection with the outer side of the center rod, and meanwhile the outer wall of the lower joint is in threaded connection with the inner wall of the piston sleeve.
Further provided is that: annular grooves are formed in the outer wall and the inner wall of the anchor sheet, and sealing rings are arranged in the annular grooves.
In summary, the beneficial technical effects of the utility model are as follows:
the drilling fluid is injected into the upper joint on the tubing anchor, then the drilling fluid in the upper joint is introduced into the center rod, the drilling fluid enters the hollow cavity through the overflow hole on the center rod, then enters the sealing cavity formed by the anchor sheet and the piston sleeve through the hollow cavity, along with the increase of pressure, the piston sealing part on the anchor sheet moves upwards and compresses the spring, the anchor sheet extends out of the tool body along the cone body and is blocked with the tubing to form an anchor, manual fixation is not needed, and the fixation efficiency is improved.
Drawings
FIG. 1 is a schematic elevational cross-sectional view of the present utility model;
FIG. 2 is a schematic diagram of the external structure of the present utility model in elevation;
FIG. 3 is a schematic side view of an anchor sheet of the present utility model;
fig. 4 is a schematic perspective view of an anchor sheet according to the present utility model.
Reference numerals: 1. an upper joint; 2. a central rod; 3. a seal ring; 4. a vertebral body; 5. an anchor sheet; 6. a piston sleeve; 7. a spring; 8. an overflow hole; 9. adjusting the sleeve; 10. and a lower joint.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
Referring to fig. 1-4, the utility model discloses a continuous oil pipe anchor, which comprises an upper joint 1, wherein the inner side of the end part of the upper joint 1 is connected with a central rod 2, a sealing ring 3 is arranged between the inner side of the upper joint 1 and the outer side of the central rod 2, a cone 4 is arranged on the outer side of the end part of the upper joint 1, a spring 7 is nested on the outer side of the central rod 2, anchor sheets 5 are nested on the outer sides of the cone 4 and the central rod 2, two ends of the spring 7 are respectively connected with a step on the outer side of the central rod 2 and a step on the inner side of the anchor sheets 5, a piston sleeve 6 is nested on the outer side of the anchor sheets 5, an adjusting sleeve 9 is nested on the outer side of the central rod 2 and positioned on the end part of the anchor sheets 5, a lower joint 10 is arranged on the inner wall of the adjusting sleeve 6, an overflow hole 8 is formed in the inner side of the adjusting sleeve 9 at the top of the central rod 2.
Threads are arranged on the inner side of the end part of the upper joint 1 and the outer side of the end part of the central rod 2, and the upper joint 1 and the central rod 2 are in threaded connection, so that the upper joint 1 and the central rod 2 can be conveniently detached and installed.
The outside of top connection 1 tip and the inboard of centrum 4 tip all are provided with the screw thread, and top connection 1 and centrum 4 are threaded connection to the inboard of centrum 4 and the outer wall of well core rod 2 laminate each other, make things convenient for the dismantlement and the installation between centrum 4 and the top connection 1, and make centrum 4 can adjust the position on top connection 1, thereby can adapt to different anchor piece 5.
The inside of piston sleeve 6 and the outside of anchor piece 5 laminate each other, and the inside of anchor piece 5 and the outside of well core rod 2 laminate each other, and the ring channel has all been seted up to the outer wall and the inner wall of anchor piece 5, and the internally mounted of ring channel has sealing washer 3, has guaranteed that anchor piece 5 can remove between piston sleeve 6 and well core rod 2.
A hollow cavity is arranged between the outer wall of the center rod 2 and the inner side of the adjusting sleeve 9, drilling fluid enters the center rod 2 through the upper joint 1, enters the hollow cavity through the overflow hole 8 on the center rod 2, then enters a sealing cavity formed by the anchor sheet 5 and the piston sleeve 6 through the hollow cavity, and along with the increase of pressure, the piston sealing part on the anchor sheet 5 moves upwards while compressing the spring 7, and the anchor sheet 5 extends out of the tool body along the cone 4 and is blocked with an oil pipe to form an anchor.
The inside of adjusting sleeve 9 and the outside of lower clutch 10 are threaded connection, and the outer wall of adjusting sleeve 9 and the inboard of piston cover 6 laminating each other to the inboard of lower clutch 10 and the outside of well core rod 2 are threaded connection, and the outer wall of lower clutch 10 and the inner wall of piston cover 6 are threaded connection simultaneously, through rotatory adjusting sleeve 9, can adjust the position of adjusting sleeve 9 on well core rod 2 to can promote anchor piece 5 to remove, make the inside spring 7 of anchor piece 5 can compress, thereby can adjust the flexible stroke of anchor piece 5 and the size of spring 7 elasticity.
The working principle and the beneficial effects of the utility model are as follows: firstly, the tubing anchor and the tubing are fixedly connected in series, the tubing and the tubing anchor are connected in a staggered manner, then drilling fluid is injected into the upper joint 1 on the tubing anchor, then the drilling fluid in the upper joint 1 enters the center rod 2, enters the hollow cavity through the overflow hole 8 on the center rod 2, then enters the sealing cavity formed by the anchor sheet 5 and the piston sleeve 6 through the hollow cavity, along with the increase of pressure, the piston sealing part on the anchor sheet 5 moves upwards and simultaneously compresses the spring 7, the anchor sheet 5 extends out of the tool body along the cone 4 to be blocked with the tubing to form an anchor, manual fixation is not needed, and the fixing efficiency is improved.
The above description is only a preferred embodiment of the present utility model, and is not intended to limit the scope of the present utility model. All equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (7)
1. A coiled tubing anchor, characterized by: including upper joint (1), the inboard of upper joint (1) tip is connected with center pole (2), and is provided with sealing washer (3) between the outside of the inboard of upper joint (1) and center pole (2), the outside of upper joint (1) tip is provided with centrum (4), the outside nestification of center pole (2) has spring (7), the outside of centrum (4) and center pole (2) is all nested to have anchor piece (5), the both ends of spring (7) respectively with the ladder in the outside of center pole (2) and the ladder interconnect of anchor piece (5), the outside nestification of anchor piece (5) has piston sleeve (6), the outer wall of center pole (2) is located the tip nestification of anchor piece (5) has adjusting sleeve (9), adjusting sleeve (9) are located the inside of piston sleeve (6), the inner wall of adjusting sleeve (9) installs down and the tip of lower joint (10) is located the outside of center pole (2) tip, the inside of adjusting sleeve (9) is located the inside of adjusting hole (8).
2. A coiled tubing anchor according to claim 1, wherein: threads are arranged on the inner side of the end part of the upper joint (1) and the outer side of the end part of the central rod (2), and the upper joint (1) is in threaded connection with the central rod (2).
3. A coiled tubing anchor according to claim 1, wherein: the outer side of the end part of the upper joint (1) and the inner side of the end part of the cone body (4) are both provided with threads, the upper joint (1) and the cone body (4) are in threaded connection, and the inner side of the cone body (4) and the outer wall of the central rod (2) are mutually attached.
4. A coiled tubing anchor according to claim 1, wherein: the inner side of the piston sleeve (6) is mutually attached to the outer side of the anchor sheet (5), and the inner side of the anchor sheet (5) is mutually attached to the outer side of the center rod (2).
5. A coiled tubing anchor according to claim 1, wherein: a hollow cavity is arranged between the outer wall of the center rod (2) and the inner side of the adjusting sleeve (9).
6. A coiled tubing anchor according to claim 1, wherein: the inner side of the adjusting sleeve (9) is in threaded connection with the outer side of the lower joint (10), the outer wall of the adjusting sleeve (9) is mutually attached to the inner side of the piston sleeve (6), the inner side of the lower joint (10) is in threaded connection with the outer side of the center rod (2), and meanwhile the outer wall of the lower joint (10) is in threaded connection with the inner wall of the piston sleeve (6).
7. A coiled tubing anchor according to claim 1, wherein: annular grooves are formed in the outer wall and the inner wall of the anchor sheet (5), and sealing rings (3) are installed in the annular grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320773798.8U CN219691501U (en) | 2023-04-10 | 2023-04-10 | Continuous oil pipe anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320773798.8U CN219691501U (en) | 2023-04-10 | 2023-04-10 | Continuous oil pipe anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219691501U true CN219691501U (en) | 2023-09-15 |
Family
ID=87969572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320773798.8U Active CN219691501U (en) | 2023-04-10 | 2023-04-10 | Continuous oil pipe anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219691501U (en) |
-
2023
- 2023-04-10 CN CN202320773798.8U patent/CN219691501U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |