CN113216886A - Hydraulic type oil pipe anchor for stabilizing oil pipe - Google Patents
Hydraulic type oil pipe anchor for stabilizing oil pipe Download PDFInfo
- Publication number
- CN113216886A CN113216886A CN202110413100.7A CN202110413100A CN113216886A CN 113216886 A CN113216886 A CN 113216886A CN 202110413100 A CN202110413100 A CN 202110413100A CN 113216886 A CN113216886 A CN 113216886A
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- Prior art keywords
- groove
- oil pipe
- anchor
- shell
- threaded
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- 230000000087 stabilizing effect Effects 0.000 title abstract description 11
- 238000007789 sealing Methods 0.000 claims description 7
- 239000003921 oil Substances 0.000 abstract description 38
- 238000004873 anchoring Methods 0.000 abstract description 5
- 239000010720 hydraulic oil Substances 0.000 abstract description 3
- 230000008859 change Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 14
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000005086 pumping Methods 0.000 description 3
- 241000935974 Paralichthys dentatus Species 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/04—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention relates to the technical field of oil pipe stabilizing equipment, and discloses a hydraulic oil pipe anchor for stabilizing an oil pipe, which comprises a shell, wherein an inner sleeve is sleeved on the inner surface of the shell in a threaded manner, a central pipe is movably sleeved on the inner surface of the inner sleeve, a side groove is formed in the side surface of the inner sleeve, an outer groove is formed in the side surface of the shell, a clamping block is arranged on the side surface of the central pipe, a first spring is arranged on the inner surface of the side groove, and a side plate is fixedly connected to the inner side surface of the outer groove. This firm hydraulic formula oil pipe anchor of using of oil pipe, set up outside and side channel respectively through the side at the shell and the side of inside groove to set up the thread groove in the side of center tube, utilize the threaded rod in the thread groove to cup joint with the fixture block, and add the closing plate in the outside, unscrew the swivel cap when need changing a spring and take out the closing plate, and promote taking out of center tube realization spring, easy operation is convenient, be convenient for in time change the spring, improve the anchoring stability of oil pipe anchor.
Description
Technical Field
The invention relates to the technical field of oil pipe stabilizing equipment, in particular to a hydraulic type oil pipe anchor for stabilizing an oil pipe.
Background
The tubing anchor is a downhole device for producing and taking measures to anchor a downhole tubular column, can improve the stress state of the tubular column, reduce the fatigue damage of the tubular column, control the expansion and contraction of the tubular column, reduce the leakage and prolong the service life of the tubular column. The pipe column is fixed in the oil pumping production process of the sucker rod pump, so that the stroke loss can be reduced, and the pump efficiency is improved; the pipe column is fixed in the processes of fracturing, acidizing and the like, so that the pressure bearing capacity of the underground tool and the pipe column can be improved. It can also be used as a mechanism designed on other downhole tools (such as packer) to play its role, and the differential pressure tubing anchor is usually anchored by using the self differential pressure of the oil jacket. When the anchor is used as an oil pipe anchor in drilling and production equipment with oil casing pressure difference, the fluke embedded in the anchor body extends out and is anchored on the casing. Its advantage is automatic anchoring during pumping. In addition, because the starting pressure difference is small, the pipe column is basically in a self-weight stretching state, and the pipe column has good functions of controlling the expansion and contraction of the pipe column and preventing eccentric wear of the rod pipe. The pressure-difference tubing anchor is also provided with a pressure-relief anchoring-releasing mechanism, the pressure-relief piston is opened through the pressurization and the pressure-relief of the tubing, the liquid in the tubing is released to the annular space of the oil sleeve, and when the internal and external liquid levels are balanced and the pressure difference of the oil sleeve is zero, the anchor fluke is retracted under the action of the spring force to release the anchoring.
The existing hydraulic type oil pipe anchor for stabilizing an oil pipe is characterized in that an inner sleeve of the existing oil pipe anchor is fixedly embedded in the inner surface of a shell, a spring is additionally arranged in a side groove of the inner sleeve, the spring is compressed through movement of a clamping block on the side surface of a central pipe, disassembly of parts is difficult to achieve in the practical use process, the spring of the oil pipe anchor has large elastic influence in the repeated use process, the spring is not replaced timely, the actual fixing effect of the oil pipe anchor is influenced, and the using effect is poor.
In addition, in the use process of the conventional hydraulic oil pipe anchor for stabilizing the oil pipe, because the inner sleeve arranged in the shell is fixedly arranged, the inner surface of the shell is difficult to remove and is easy to strain, after the inner sleeve is removed, the mounting difficulty is high, the operation time is long, the labor expenditure is increased, the abrasion of the matching surface is easy to cause in the mounting process, the gap is increased, the sealing effect is low, and the dismounting effect is poor.
On the other hand, the hydraulic tubing anchor for stabilizing the existing oil pipe is characterized in that in the use process, the central pipe is lifted through the lifting of the seat cushion, the slip is pushed and rotated by the aid of the thrust sleeve, the slip is rotated and outwards expanded and fixes the oil pipe, and when the fixing is cancelled, the slip is reset by swinging downwards under the action of self weight only by cancelling oil pumping pressure.
Disclosure of Invention
The invention provides a hydraulic type oil pipe anchor for stabilizing an oil pipe, which has the advantages of improving the use stability of the oil pipe anchor, facilitating the disassembly and improving the resetting effect of slips and solves the problems in the background technology.
The invention provides the following technical scheme: the utility model provides an oil pipe stabilizes and uses hydraulic tubing anchor, includes the shell, the internal surface screw thread of shell has cup jointed the endotheca, the internal surface activity of endotheca has cup jointed the center tube, the side channel has been seted up to the side of endotheca, the outer groove has been seted up to the side of shell, the side of center tube is equipped with the fixture block, the internal surface of side channel is equipped with the spring No. one, the medial surface fixedly connected with curb plate of outer groove, the positive fixedly connected with dead lever of curb plate, the surface screw thread of dead lever has cup jointed the swivel cap, the internal surface of outer groove is equipped with the closing plate, the front and the dead lever activity of closing plate cup joint, No. two mounting grooves have been seted up to the side of shell, the side fixedly connected with fixed axle of No. two mounting grooves, the slips has been cup jointed in the surface activity of fixed axle.
Preferably, the side of the central tube is provided with a thread groove, the inner surface of the thread groove is in threaded sleeve connection with a threaded rod, and the outer surface of the threaded rod is in threaded sleeve connection with a locking cap.
Preferably, the outer surface of the threaded rod is movably sleeved with a clamping block, and the clamping block is movably clamped inside the side groove.
Preferably, the outer surface of the central tube is fixedly sleeved with a seat cushion and a thrust sleeve from bottom to top respectively, and a preformed groove is formed in the side surface of the thrust sleeve.
Preferably, a threaded hole is formed in the side face of the first mounting groove, and a threaded sleeve is sleeved on the inner surface of the threaded hole in a threaded manner.
Preferably, the front of the thread bushing is provided with a clamping groove, the inner surface of the clamping groove is in threaded sleeve connection with a movable block, and a second spring is fixedly connected between the movable block and the slip.
The invention has the following beneficial effects:
1. this firm hydraulic formula oil pipe anchor of using of oil pipe, set up outside and side channel respectively through the side at the shell and the side of inside groove to set up the thread groove in the side of center tube, utilize the threaded rod in the thread groove to cup joint with the fixture block, and add the closing plate in the outside, unscrew the swivel cap when need changing a spring and take out the closing plate, and promote taking out of center tube realization spring, easy operation is convenient, be convenient for in time change the spring, improve the anchoring stability of oil pipe anchor.
2. This firm hydraulic formula oil pipe anchor of using of oil pipe, through set up outside and side channel respectively at the side of shell and the side of inside groove to set up the thread groove in the side of center tube, utilize the threaded rod in the thread groove to cup joint with the fixture block, and make endotheca and shell thread cup joint, tear the fixture block out after screwing out threaded rod and locking cap, can from screwing out the endotheca down, it is convenient to dismantle, improves the maintenance effect of oil pipe anchor, excellent in use effect.
3. This oil pipe stabilizes and uses hydraulic oil pipe anchor, set up the screw hole that is located mounting groove bottom through the side at the endotheca to cup joint the thread bush at the screw hole screw thread, utilize the draw-in groove activity joint movable block in the thread bush, and add No. two springs between movable block and slips, tensile No. two springs when thrust cover upwards promotes the slips swing, and when cancelling the anchor, receive No. two spring elastic reaction to pull back the slips, realize resetting completely, excellent in use effect.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of the structure of the present invention;
FIG. 3 is an enlarged view of the structure at A in FIG. 1;
FIG. 4 is an enlarged view of the structure at B in FIG. 1;
FIG. 5 is a schematic view of a structural enclosure of the present invention;
FIG. 6 is an exploded schematic view of a structural center tube of the present invention;
FIG. 7 is a schematic view of a structural inner sleeve of the present invention;
fig. 8 is an exploded view of a structural thread cover of the present invention.
In the figure: 1. a housing; 2. an inner sleeve; 3. a central tube; 4. a side groove; 5. a first mounting groove; 6. mounting grooves II; 7. slips; 8. a first spring; 9. a thread groove; 10. a threaded rod; 11. a clamping block; 12. A locking cap; 13. an outer tank; 14. a side plate; 15. fixing the rod; 16. rotating the cap; 17. a sealing plate; 18. A fixed shaft; 19. a thrust sleeve; 20. a seat cushion; 21. reserving a groove; 22. a threaded hole; 23. a threaded sleeve; 24. a card slot; 25. a movable block; 26. and a second spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-8, a hydraulic tubing anchor for stabilizing an oil tube comprises a housing 1, an inner sleeve 2 is sleeved on the inner surface of the housing 1 through threads, a central tube 3 is movably sleeved on the inner surface of the inner sleeve 2, a side groove 4 is formed in the side surface of the inner sleeve 2, an outer groove 13 is formed in the side surface of the housing 1, a clamping block 11 is arranged on the side surface of the central tube 3, a first spring 8 is arranged on the inner surface of the side groove 4, a side plate 14 is fixedly connected to the inner side surface of the outer groove 13, a fixing rod 15 is fixedly connected to the front surface of the side plate 14, a rotating cap 16 is sleeved on the outer surface of the fixing rod 15 through threads, a sealing plate 17 is arranged on the inner surface of the outer groove 13, the front surface of the sealing plate 17 is movably sleeved with the fixing rod 15, a second mounting groove 6 is formed in the side surface of the housing 1, a fixing shaft 18 is fixedly connected to the side surface of the second mounting groove 6, and a fixing shaft 7 is movably sleeved on the outer surface of the fixing shaft 18.
Wherein, thread groove 9 has been seted up to the side of center tube 3, and the internal surface screw thread of thread groove 9 has cup jointed threaded rod 10, and the surface screw thread of threaded rod 10 has cup jointed locking cap 12, utilizes the threaded rod 10 to cup joint with the screw thread of thread groove 9 for threaded rod 10 convenient to detach, and conveniently realize dismantling of fixture block 11, the center tube of being convenient for is dismantled.
Wherein, the surface of threaded rod 10 cup joints with the activity of fixture block 11, and the inside of fixture block 11 activity joint in side channel 4 utilizes locking cap 12 to realize that the locking of fixture block 11 is fixed, and through the interactive joint of fixture block 11 with side channel 4, tries down the compression to spring 8, the center tube 3 of being convenient for resets.
Wherein, the surface of center tube 3 is fixed respectively from bottom to top has cup jointed seatpad 20 and thrust cover 19, and the reservation groove 21 has been seted up to the side of thrust cover 19, and the promotion upset of slips 7 is accomplished through the rising of center tube 3, and the reservation groove 21 is convenient for the upset of slips 7.
Wherein, the side of the first mounting groove 5 is provided with a threaded hole 22, the inner surface of the threaded hole 22 is in threaded sleeve connection with a threaded sleeve 23, and the threaded sleeve 23 is convenient to unscrew from the inner sleeve 2 by utilizing the threaded sleeve connection of the threaded hole 22 and the threaded sleeve 23.
Wherein, draw-in groove 24 has been seted up on the front of thread bush 23, and the internal surface screw thread of draw-in groove 24 has cup jointed the movable block 25, and No. two spring 26 of fixedly connected with between movable block 25 and the slips 7 through the elasticity that utilizes No. two spring 26 for be convenient for stimulate slips 7 and reset.
According to the working principle, when the first spring 8 is dismounted, the rotating cap 16 is screwed out, the sealing plate 17 is taken out, the central tube 3 is pushed downwards, the first spring 8 is taken out and replaced, when the first spring 8 needs to be dismounted, the locking cap 12 is continuously screwed out, the clamping block 11 is taken out outwards, the threaded rod 10 is continuously screwed out, the threaded sleeve 23 is screwed out from the first mounting groove 5 of the inner sleeve, and the central tube 3 and the inner sleeve 2 slide out, so that dismounting can be achieved; when carrying out the anchor, along with pump suction, the oil is inhaled for seatpad 20 drives the center tube 3 and rises, makes thrust sleeve 19 upwards promote slips 7 upset, and No. two springs 26 are tensile simultaneously, and when cancelling the anchor, pump suction cancellation, center tube 3 drive thrust sleeve 19 and move down, and No. two springs 26 reset tractive slips 7 and reset.
Claims (6)
1. The utility model provides a firm hydraulic formula oil pipe anchor of using of oil pipe, includes shell (1), its characterized in that: the inner surface of the shell (1) is in threaded sleeve connection with an inner sleeve (2), the inner surface of the inner sleeve (2) is movably sleeved with a central tube (3), the side surface of the inner sleeve (2) is provided with a side groove (4), the side surface of the shell (1) is provided with an outer groove (13), the side surface of the central tube (3) is provided with a clamping block (11), the inner surface of the side groove (4) is provided with a first spring (8), the inner side surface of the outer groove (13) is fixedly connected with a side plate (14), the front surface of the side plate (14) is fixedly connected with a fixed rod (15), the outer surface of the fixed rod (15) is in threaded sleeve connection with a rotating cap (16), the inner surface of the outer groove (13) is provided with a sealing plate (17), the front surface of the sealing plate (17) is movably sleeved with the fixed rod (15), the side surface of the shell (1) is provided with a second mounting groove (6), and the side surface of the second mounting groove (6) is fixedly connected with a fixed shaft (18), slips (7) are movably sleeved on the outer surface of the fixed shaft (18).
2. The hydraulic tubing anchor for securing oil tubing of claim 1, wherein: thread groove (9) have been seted up to the side of center tube (3), threaded rod (10) have been cup jointed to the internal surface screw thread of thread groove (9), the surface screw thread of threaded rod (10) has cup jointed locking cap (12).
3. The hydraulic tubing anchor for securing oil tubing of claim 2, wherein: the outer surface of the threaded rod (10) is movably sleeved with a clamping block (11), and the clamping block (11) is movably clamped inside the side groove (4).
4. The hydraulic tubing anchor for securing oil tubing of claim 1, wherein: the outer surface of the central tube (3) is fixedly sleeved with a seat cushion (20) and a thrust sleeve (19) from bottom to top respectively, and a preformed groove (21) is formed in the side surface of the thrust sleeve (19).
5. The hydraulic tubing anchor for securing oil tubing of claim 1, wherein: a threaded hole (22) is formed in the side face of the first mounting groove (5), and a threaded sleeve (23) is sleeved on the inner surface of the threaded hole (22) in a threaded manner.
6. The hydraulic tubing anchor for securing oil tubing of claim 5, wherein: the front of thread bush (23) has seted up draw-in groove (24), the internal surface screw thread of draw-in groove (24) has cup jointed movable block (25), fixedly connected with No. two spring (26) between movable block (25) and slips (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110413100.7A CN113216886A (en) | 2021-04-16 | 2021-04-16 | Hydraulic type oil pipe anchor for stabilizing oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110413100.7A CN113216886A (en) | 2021-04-16 | 2021-04-16 | Hydraulic type oil pipe anchor for stabilizing oil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113216886A true CN113216886A (en) | 2021-08-06 |
Family
ID=77087608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110413100.7A Withdrawn CN113216886A (en) | 2021-04-16 | 2021-04-16 | Hydraulic type oil pipe anchor for stabilizing oil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113216886A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115126463A (en) * | 2022-07-14 | 2022-09-30 | 李天艳 | Hydraulic anchor for hydraulic fracturing of oil well |
-
2021
- 2021-04-16 CN CN202110413100.7A patent/CN113216886A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115126463A (en) * | 2022-07-14 | 2022-09-30 | 李天艳 | Hydraulic anchor for hydraulic fracturing of oil well |
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Application publication date: 20210806 |
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| WW01 | Invention patent application withdrawn after publication |