CN213205608U - Hydraulic anchor with adjustable anchoring pressure - Google Patents
Hydraulic anchor with adjustable anchoring pressure Download PDFInfo
- Publication number
- CN213205608U CN213205608U CN202120802955.4U CN202120802955U CN213205608U CN 213205608 U CN213205608 U CN 213205608U CN 202120802955 U CN202120802955 U CN 202120802955U CN 213205608 U CN213205608 U CN 213205608U
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- anchor
- guide
- grooves
- hydraulic
- anchoring pressure
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- 238000004873 anchoring Methods 0.000 title claims abstract description 26
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 238000010073 coating (rubber) Methods 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 241000935974 Paralichthys dentatus Species 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to the technical field of hydraulic anchors, in particular to a hydraulic anchor with adjustable anchoring pressure, which comprises a barrel body, wherein the top of the barrel body is provided with an upper interface, the bottom of the barrel body is provided with a lower interface, the barrel wall of the barrel body is provided with a group of anchor grooves, the upper end and the lower end of each anchor groove are respectively provided with a guide groove along the radial direction of the barrel body, and the inner side of each guide groove is provided with a limit step; the anchor groove is connected with an anchor block in a sliding and sealing mode, the upper end and the lower end of the anchor block are respectively provided with a guide block in sliding fit with the guide groove, and the peripheral face of the anchor block is provided with anchor teeth; the cylinder wall of the cylinder body is provided with a group of annular grooves with the same height as the guide grooves, the annular grooves are internally and fixedly connected with retaining rings, the retaining rings are in threaded connection with jackscrews corresponding to the positions of the guide grooves, and springs are further arranged between the jackscrews and the guide blocks in the guide grooves. The utility model discloses can carry out the adaptation to the anchoring pressure of hydraulic anchor and adjust according to the needs of operation well site.
Description
Technical Field
The utility model relates to a hydraulic anchor technical field, concretely relates to hydraulic anchor with adjustable anchoring pressure.
Background
At present, when an oil well pumps oil, a liquid column load is alternately transferred on an oil pipe and a sucker rod along with the change of the up-down stroke of an oil pumping unit, so that the oil pipe is lengthened and shortened, the pumping efficiency of the oil pumping unit is low, the oil pipe is tripped and falls into the well, and in order to avoid the problems, a hydraulic anchor is used on site for fixing the oil pipe and preventing the oil pipe from stretching; in addition, during the process construction of the oil-water well, in order to prevent the damage of downhole tools such as a packer and the like caused by the shifting of a pipe column, a hydraulic anchor is connected to the tools.
Wherein, chinese utility model patent discloses a hydraulic anchor, patent number: CN200820174800.5, the hydraulic anchor is continuously used in the current well site operation, the hydraulic anchor overcomes the elasticity of a spring by means of the pressure of an internal runner, and realizes the anchoring of a control fluke, but the anchoring pressure of the fluke cannot be adjusted, so that when the hydraulic anchor is applied to runners of different wellheads or different pressures, the problem that the anchoring of the fluke is not in time or too early occurs, and the construction and production are influenced.
Disclosure of Invention
The utility model aims at providing a hydraulic anchor with adjustable anchoring pressure to the defect that prior art exists, its is rational in infrastructure, can carry out the adaptation to the anchoring pressure of hydraulic anchor according to the needs of operation well site and adjust.
The technical scheme of the utility model is that:
an anchoring pressure adjustable hydraulic anchor comprises a cylinder body, wherein the top of the cylinder body is provided with an upper connector, the bottom of the cylinder body is provided with a lower connector, the cylinder wall of the cylinder body is provided with a group of anchor grooves, the upper end and the lower end of each anchor groove are respectively provided with a guide groove along the radial direction of the cylinder body, and the inner sides of the guide grooves are provided with limiting steps;
the anchor groove is connected with an anchor block in a sliding and sealing mode, the upper end and the lower end of the anchor block are respectively provided with a guide block in sliding fit with the guide groove, and the peripheral face of the anchor block is provided with anchor teeth;
the cylinder wall of the cylinder body is provided with a group of annular grooves with the same height as the guide grooves, the annular grooves are internally and fixedly connected with retaining rings, the retaining rings are in threaded connection with jackscrews corresponding to the positions of the guide grooves, and springs are further arranged between the jackscrews and the guide blocks in the guide grooves.
Preferably, the retainer ring is formed by splicing two half ring bodies.
Preferably, the front end of the jackscrew is provided with a circular support part, and the outer diameter of the support part is larger than that of the spring.
Preferably, the front end of the supporting part is provided with a positioning protrusion extending into the inner hole of the spring.
Preferably, the positioning projection is of a conical structure.
Preferably, the contact part of the inner wall of the anchor groove and the rear end of the anchor block is a mutually matched sealing surface, and the sealing surface is coated with a rubber coating.
Compared with the prior art, the utility model, have following advantage:
the utility model has the advantages of simple and reasonable structure, can adjust the anchoring pressure of hydraulic anchor through the jackscrew to demand when can be according to well site construction or oil recovery operation, what correspond adjusts anchoring pressure, also can be according to different oil production well production time, matches and adjusts different anchoring pressure, and then makes the utility model discloses more nimble convenience to during the use, precision and reliability are higher.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic half-sectional view of the present invention;
FIG. 3 is a schematic view of the structure at A in FIG. 2;
FIG. 4 is a schematic view of the structure of an anchor block;
FIG. 5 is a schematic structural view of a jackscrew;
in the figure: 1. the device comprises an upper connector, 2, a cylinder, 3, an anchor block, 4, a retainer ring, 5, a jackscrew, 6, a lower connector, 7, a limiting step, 8, a guide groove, 9, an anchor groove, 10, a spring, 11, a guide block, 12, a sealing surface, 13, an anchor tooth, 14, a positioning protrusion, 15 and a supporting part.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example 1
Referring to fig. 1 to 5, the hydraulic anchor with adjustable anchoring pressure comprises a cylinder 2, wherein an upper connector 1 is arranged at the top of the cylinder 2, and a lower connector 6 is arranged at the bottom of the cylinder 2.
A group of anchor grooves 9 are formed in the wall of the barrel body 2, generally 2-4 anchor grooves 9 are in a group and are arranged around the barrel body 2 at equal intervals, guide grooves 8 are formed in the upper end and the lower end of each anchor groove 9 along the radial direction of the barrel body 2, and limiting steps 7 are arranged on the inner sides of the guide grooves 8.
The anchor groove 9 is connected with the anchor block 3 in a sliding sealing mode, the upper end and the lower end of the anchor block 3 are respectively provided with a guide block 11 which is in sliding fit with the guide groove 8, the outer peripheral surface of the anchor block 3 is provided with anchor teeth 13, and the anchor teeth 13 are in a sawtooth shape.
The cylinder wall of the cylinder body 2 is provided with a group of annular grooves with the same height as the guide grooves 8, the annular grooves are internally welded with check rings 4, the check rings 4 are connected with jackscrews 5 corresponding to the guide grooves 8 in a threaded manner, springs 10 are further arranged between the jackscrews 5 and the guide blocks 11 in the guide grooves 8, and the springs 10 can be supported to compress by rotating the jackscrews 5.
When in use, the anchoring pressure is firstly adjusted, specifically: one end of the cylinder body 2 is connected with a blind plug, the other end of the cylinder body 2 is connected with a pressure gauge and a plunger pump, the cylinder body 2 is pressurized through the plunger pump, the pressure gauge is observed to reach the pressure required to be set, then the pump is stopped to pressurize, finally, the anchor teeth 13 are observed through the rotary jackscrew 5, and the rotary jackscrew 5 is stopped when the anchor teeth 13 just extend out of the anchor groove 9;
repeat above-mentioned step, can verify the utility model discloses whether the anchoring pressure matches with the pressure that needs to set for.
The utility model has the advantages of simple and reasonable structure, can adjust the anchoring pressure of hydraulic anchor through jackscrew 5 to demand when can be according to well site construction or oil recovery operation, what correspond adjusts anchoring pressure, also can be according to different oil production well production time, matches and adjusts different anchoring pressure, and then makes the utility model discloses more nimble convenience to during the use, precision and reliability are higher.
Example 2
The embodiment is further optimized on the basis of embodiment 1, and specifically comprises the following steps:
the retaining ring 4 is formed by splicing two half-ring bodies, and the retaining ring 4 is more conveniently welded in the annular groove on the outer wall of the barrel body 2 through the structural design of the two half-ring bodies.
The sealing structure between the anchor groove 9 and the anchor block 3 can be formed by respectively coating rubber coatings on the contact part of the inner wall of the anchor groove 9 and the rear end of the anchor block 3 to form a sealing surface 12 which is matched with each other; or the inner wall of the whole anchor groove 9 is coated with a rubber coating as a sealing surface 12 so as to achieve better sliding sealing effect.
Example 3
The embodiment is further optimized on the basis of embodiment 1 or embodiment 2, and specifically includes:
the front end of the jackscrew 5 is provided with a circular support part 15, and the outer diameter of the support part 15 is larger than that of the spring 10, so that the spring 10 can be better supported.
In addition, a conical positioning projection 14 extending into the inner hole of the spring 10 can be arranged at the front end of the supporting part 15, so that the jackscrew 5 can support the spring 10 to be compressed axially.
The present invention is not limited to the above-described embodiments, and various changes can be made within the knowledge range of those skilled in the art without departing from the spirit of the present invention, and the changed contents still belong to the protection scope of the present invention.
Claims (6)
1. The utility model provides a hydraulic anchor with adjustable anchoring pressure, includes the barrel, the top of barrel is equipped with the interface, the bottom of barrel is equipped with interface, its characterized in that down: a group of anchor grooves are formed in the wall of the barrel, guide grooves are formed in the upper end and the lower end of each anchor groove along the radial direction of the barrel, and limiting steps are arranged on the inner sides of the guide grooves;
the anchor groove is connected with an anchor block in a sliding and sealing mode, the upper end and the lower end of the anchor block are respectively provided with a guide block in sliding fit with the guide groove, and the peripheral face of the anchor block is provided with anchor teeth;
the cylinder wall of the cylinder body is provided with a group of annular grooves with the same height as the guide grooves, the annular grooves are internally and fixedly connected with retaining rings, the retaining rings are in threaded connection with jackscrews corresponding to the positions of the guide grooves, and springs are further arranged between the jackscrews and the guide blocks in the guide grooves.
2. The hydraulic anchor with adjustable anchoring pressure of claim 1, wherein: the retainer ring is formed by splicing two half ring bodies.
3. The hydraulic anchor with adjustable anchoring pressure of claim 1, wherein: the front end of jackscrew is equipped with circular supporting part, the external diameter of supporting part is greater than the external diameter of spring.
4. The hydraulic anchor with adjustable anchoring pressure of claim 3, wherein: the front end of the supporting part is provided with a positioning protrusion extending into the inner hole of the spring.
5. The hydraulic anchor with adjustable anchoring pressure of claim 4, wherein: the positioning protrusions are in a cone structure.
6. The hydraulic anchor with adjustable anchoring pressure of claim 1, wherein: the inner wall of the anchor groove and the contact part of the rear end of the anchor block are mutually matched sealing surfaces, and the sealing surfaces are coated with rubber coatings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120802955.4U CN213205608U (en) | 2021-04-20 | 2021-04-20 | Hydraulic anchor with adjustable anchoring pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120802955.4U CN213205608U (en) | 2021-04-20 | 2021-04-20 | Hydraulic anchor with adjustable anchoring pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213205608U true CN213205608U (en) | 2021-05-14 |
Family
ID=75828795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120802955.4U Active CN213205608U (en) | 2021-04-20 | 2021-04-20 | Hydraulic anchor with adjustable anchoring pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213205608U (en) |
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2021
- 2021-04-20 CN CN202120802955.4U patent/CN213205608U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A hydraulic anchor with adjustable anchoring pressure Effective date of registration: 20231017 Granted publication date: 20210514 Pledgee: Dongying Branch of China Postal Savings Bank Co.,Ltd. Pledgor: DONGYING ZHAOXIN INDUSTRY AND TRADE CO.,LTD. Registration number: Y2023980061528 |