CN210685899U - Oil-water well fishing hydraulic booster - Google Patents
Oil-water well fishing hydraulic booster Download PDFInfo
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- CN210685899U CN210685899U CN201921263128.1U CN201921263128U CN210685899U CN 210685899 U CN210685899 U CN 210685899U CN 201921263128 U CN201921263128 U CN 201921263128U CN 210685899 U CN210685899 U CN 210685899U
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Abstract
The utility model relates to a hydraulic booster is salvaged to oil-water well. The technical scheme is as follows: the outer wall of the lower end of the upper joint is sequentially connected with the multi-stage hydraulic cylinder piston body assembly and the lower joint, the lower end of the lower piston rod is connected with the hexagonal pull rod, and the upper end of the lower piston rod is connected with the inner piston upper body; and an inner piston upper body is arranged in the inner cavity at the lower end of the upper joint, an inner piston water injection hole is formed in the upper end of the inner piston upper body, and the lower end of the inner piston upper body is inserted into the hydraulic cylinder piston body assembly. The beneficial effects are that: hydraulic pressure is led to the inner piston body from the inner piston upper body, so that the hydraulic cylinder piston body assembly moves upwards completely, the hexagonal pull rod is driven to apply upward pulling force to the fish in the upward moving process of the hydraulic cylinder piston body assembly, the fish is fished out of the fish, the multistage hydraulic cylinder piston body assembly can achieve the supercharging effect, and the underground falling objects are fished out; in addition, under the condition that high-load tension is not brought to the fishing pipe string and the operation derrick, effective fishing force can be directly provided for the falling objects, and tension loss in the fishing process can be avoided.
Description
Technical Field
The utility model relates to an oil-water well salvages operation equipment, in particular to hydraulic booster is salvaged to oil-water well.
Background
In the long-time production and measure operation process of an oil-water well, the production pipe column is corroded, the stratum spits sand and the like cause shaft bottom falling objects or sand blocking accidents, the difficulty of moving and releasing the blocking is very high due to the fact that the operation derrick is limited by tension (70 kN) in minor repair, the construction cost of major repair operation is high, in addition, for a highly-deviated well and a horizontal well, the fishing pipe column is not in a free stretching state in a straight well in the well, but is in a complex S shape and is tightly attached to the upper side or the lower side of a casing, so that the friction resistance is very large during fishing, the tension cannot be effectively transmitted to the falling objects (also called falling objects), and the fishing operation is difficult to normally.
Disclosure of Invention
The utility model aims at providing an above-mentioned defect to prior art exists provides an oil-water well salvages hydraulic booster, carries out the unfreezing with hydraulic booster, under the pulling force's of high load circumstances is brought for salvaging tubular column cluster, operation derrick not, can directly provide to the junk and salvage effective power, can avoid salvaging in-process pulling force loss, effectively solves above-mentioned problem.
The technical scheme is as follows: the hydraulic cylinder piston structure comprises an upper connector (1), a hydraulic cylinder piston body assembly, a lower connector (9), a lower piston rod (10), a hexagonal pull rod (11) and an inner piston upper body (13), wherein the outer wall of the lower end of the upper connector (1) is sequentially connected with a multi-stage hydraulic cylinder piston body assembly and the lower connector (9), the lower end of the lower piston rod (10) is connected with the hexagonal pull rod (11), and the upper end of the lower piston rod is connected with the inner piston upper body; an inner piston upper body (13) is installed in an inner cavity of the lower end of the upper connector (1), an inner piston water injection hole (12) is formed in the upper end of the inner piston upper body (13), the lower end of the inner piston upper body is inserted into a hydraulic cylinder piston body assembly, the hydraulic cylinder piston body assembly comprises an upper rubber cylinder (2), an upper hydraulic cylinder piston body (3), a lower rubber cylinder (4), a hydraulic cylinder outer body (5) and a lower hydraulic cylinder piston body (21), the upper end of the hydraulic cylinder outer body (5) is connected with the upper connector (1), the lower end of the hydraulic cylinder outer body is connected with a short section (22), the lower hydraulic cylinder piston body (21) is connected to the upper side of the short section (22), the upper hydraulic cylinder piston body (3) is arranged between the upper rubber cylinder (2) and the lower rubber cylinder (4), and.
Preferably, a first inner transition hole (14) is provided at a position where the inner piston upper body (13) is located between the upper cylinder piston body (3) and the lower cylinder piston body (21) of the first cylinder piston body assembly (6).
Preferably, the multi-stage hydraulic cylinder piston body assembly is a two-stage or more hydraulic cylinder piston body assembly.
Preferably, the multistage hydraulic cylinder piston body assembly comprises a first hydraulic cylinder piston body assembly (6), a second hydraulic cylinder piston body assembly (7) and a third hydraulic cylinder piston body assembly (8), the first hydraulic cylinder piston body assembly (6) is connected with the second hydraulic cylinder piston body assembly (7) through a short joint (22), and the second hydraulic cylinder piston body assembly (7) is connected with the third hydraulic cylinder piston body assembly (8) through a short joint.
Preferably, the inner sides of the upper rubber cylinder (2), the upper hydraulic cylinder piston body (3) and the lower rubber cylinder (4) of the first hydraulic cylinder piston body assembly (6) fixedly hold the inner piston upper body (13) tightly, and the outer sides are in sliding fit with the hydraulic cylinder outer body (5).
Preferably, the outer wall of the lower hydraulic cylinder piston body (21) of the first hydraulic cylinder piston body assembly (6) is in sliding fit with the inner wall of the short joint (22).
The lower rubber cylinder (4) is of a bowl-shaped structure.
The utility model has the advantages that: high-pressure water is injected into the petroleum pipe column through a well mouth, the water pressure enters the inner piston body through the inner piston water injection hole, the water pressure is filled in the booster, the hydraulic pressure is communicated with the inner piston body through the inner piston upper body, the hydraulic cylinder piston body assembly is enabled to move upwards completely, the hexagonal pull rod is driven to apply upward pulling force to the fallen fish in the moving-up process of the hydraulic cylinder piston body assembly, the fallen fish is fished and unfreezed, the multistage hydraulic cylinder piston body assembly can achieve the boosting effect, and the fallen objects in the well are fished; in addition, under the condition that high-load tension is not brought to the fishing pipe string and the operation derrick, effective fishing force can be directly provided for the falling objects, and tension loss in the fishing process can be avoided.
Drawings
FIG. 1 is a schematic structural view of the upper half of the present invention;
FIG. 2 is a schematic structural diagram of the lower half of the present invention;
in the upper diagram: the hydraulic cylinder comprises an upper joint 1, an upper rubber cylinder 2, a hydraulic cylinder piston body 3, a lower rubber cylinder 4, a hydraulic cylinder outer body 5, a first hydraulic cylinder piston body assembly 6, a second hydraulic cylinder piston body assembly 7, a third hydraulic cylinder piston body assembly 8, a lower joint 9, a lower piston rod 10, a hexagonal pull rod 11, an inner piston water injection hole 12, a first inner conversion hole 14, a second inner piston body 15, a second inner conversion hole 16, a third inner conversion hole 17, a fourth inner conversion hole 18, a lower piston body 19, a fourth hydraulic cylinder piston body assembly 20, a lower hydraulic cylinder piston body 21 and a short section 22.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
The auxiliary part is hydraulic pressure release anchor (hydraulic anchor, this instrument is prior art, and itself can rotate, can bear the working torque for install at the middle part of pit shaft, the sub-unit connection the utility model discloses through hydraulic pressure release anchor (hydraulic anchor fixes at the pit shaft middle part, plays to bear and connects in the lower part the utility model discloses an axial load.
Preferably, a first inner transfer bore 14 is provided at a position of the inner piston upper body 13 between the upper cylinder piston body 3 and the lower cylinder piston body 21 of the first cylinder piston body assembly 6.
Preferably, the multi-stage hydraulic cylinder piston body assembly is a two-stage or more hydraulic cylinder piston body assembly.
Preferably, the multistage hydraulic cylinder piston body assembly comprises a first hydraulic cylinder piston body assembly 6, a second hydraulic cylinder piston body assembly 7 and a third hydraulic cylinder piston body assembly 8, wherein the first hydraulic cylinder piston body assembly 6 is connected with the second hydraulic cylinder piston body assembly 7 through a short joint 22, and the second hydraulic cylinder piston body assembly 7 is connected with the third hydraulic cylinder piston body assembly 8 through a short joint.
Preferably, the inner sides of the upper rubber cylinder 2, the upper cylinder piston body 3 and the lower rubber cylinder 4 of the first hydraulic cylinder piston body assembly 6 fixedly hold the inner piston upper body 13 tightly, and the outer sides are in sliding fit with the hydraulic cylinder outer body 5.
Preferably, the outer wall of the lower cylinder piston body 21 of the first cylinder piston body assembly 6 is in sliding fit with the inner wall of the nipple 22.
In addition, the hexagonal pull rod at the bottom end of the tool can rotate the tubular column to effectively increase the torque force at the bottom end; the upper sealing rubber cylinder can clean the inner cavity of the hydraulic cylinder in working motion. The oil sludge sand is cleaned, the blockage of the inner cavity is reduced, the working accessories move smoothly, and the cavity clamping accident cannot be caused; the lower rubber cylinder 4 of the tool is of a bowl-shaped structure, plays a role in sealing compensation and effectively improves long-time recycling.
During the use, firstly when this instrument is used the utility model discloses an upper band safety joint is connected with fishing tool below the hexagonal pull rod 11, the utility model discloses a top connection 1 will connect hydraulic pressure unfreezing anchor water force anchor, utilize the tubular column to go into the well, reach behind the predetermined position, rotatory tubular column body drives hexagonal pull rod 11 or pushes down the tubular column, drag for the fish that falls also is exactly the junk, it exerts certain pretightning force for the fish to lift the tubular column, oil pipe is being suppressed this moment, water pressure is advanced interior piston body by inner piston water injection hole, inside water pressure is filled the booster, under the effect that hydraulic pressure increases, hydraulic pressure unfreezing anchor is with the chucking on the sleeve pipe, bear the axial load of hydraulic pressure booster. And continuously pressurizing the hydraulic booster to start working, wherein hydraulic pressure is communicated to the inner piston body from the inner piston upper body, and then is transferred to the hydraulic cylinder piston body assembly and the lower piston body from the inner conversion hole, so that the hydraulic cylinder piston body assembly is completely moved upwards. And in the upward moving process of the hydraulic cylinder piston body assembly, the hexagonal pull rod is driven to apply upward tension to the fish to catch and unfreeze the fish, and the pump pressure is generally not more than 25Mpa of the pressure limit of the tool. If the fish does not release the stuck fish although moving upwards, stopping pressurizing at the moment, lifting the pipe column for a certain distance after releasing the pressure, increasing the tension of 50KN on the basis of the original hanging weight, continuing pressurizing at the moment, generally not exceeding the pressure limit of the tool by 25Mpa, and repeating the operation for many times until the stuck fish is completely released. And after the unfreezing construction is finished, the pipe column is released and pressed out of the pipe column.
Example 2, the difference of the utility model from example 1 is that,
the utility model discloses a multistage hydraulic cylinder piston body assembly includes first hydraulic cylinder piston body assembly 6, second hydraulic cylinder piston body assembly 7, third hydraulic cylinder piston body assembly 8 and fourth hydraulic cylinder piston body assembly 20, according to the well condition of difference, can design the hydraulic cylinder piston body assembly of different quantity.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solutions described above. Therefore, any simple modifications or equivalent replacements made according to the technical solution of the present invention belong to the scope of the claimed invention as far as possible.
Claims (7)
1. The utility model provides an oil-water well salvages hydraulic pressure booster, characterized by: the hydraulic cylinder piston structure comprises an upper connector (1), a hydraulic cylinder piston body assembly, a lower connector (9), a lower piston rod (10), a hexagonal pull rod (11) and an inner piston upper body (13), wherein the outer wall of the lower end of the upper connector (1) is sequentially connected with a multi-stage hydraulic cylinder piston body assembly and the lower connector (9), the lower end of the lower piston rod (10) is connected with the hexagonal pull rod (11), and the upper end of the lower piston rod is connected with the inner piston upper body; an inner piston upper body (13) is installed in an inner cavity of the lower end of the upper connector (1), an inner piston water injection hole (12) is formed in the upper end of the inner piston upper body (13), the lower end of the inner piston upper body is inserted into a hydraulic cylinder piston body assembly, the hydraulic cylinder piston body assembly comprises an upper rubber cylinder (2), an upper hydraulic cylinder piston body (3), a lower rubber cylinder (4), a hydraulic cylinder outer body (5) and a lower hydraulic cylinder piston body (21), the upper end of the hydraulic cylinder outer body (5) is connected with the upper connector (1), the lower end of the hydraulic cylinder outer body is connected with a short section (22), the lower hydraulic cylinder piston body (21) is connected to the upper side of the short section (22), the upper hydraulic cylinder piston body (3) is arranged between the upper rubber cylinder (2) and the lower rubber cylinder (4), and.
2. The hydraulic booster for oil-water well fishing according to claim 1, wherein: a first inner conversion hole (14) is formed in the position, between the upper hydraulic cylinder piston body (3) and the lower hydraulic cylinder piston body (21), of the first hydraulic cylinder piston body assembly (6) of the inner piston upper body (13).
3. The hydraulic booster for oil-water well fishing according to claim 1, wherein: the multi-stage hydraulic cylinder piston body assembly adopts a hydraulic cylinder piston body assembly with two or more stages.
4. The hydraulic booster for oil-water well fishing according to claim 3, wherein: the multistage hydraulic cylinder piston body assembly comprises a first hydraulic cylinder piston body assembly (6), a second hydraulic cylinder piston body assembly (7) and a third hydraulic cylinder piston body assembly (8), the first hydraulic cylinder piston body assembly (6) is connected with the second hydraulic cylinder piston body assembly (7) through a short section (22), and the second hydraulic cylinder piston body assembly (7) is connected with the third hydraulic cylinder piston body assembly (8) through a short section.
5. The hydraulic booster for oil-water well fishing according to claim 4, wherein: the inner sides of the upper rubber cylinder (2), the upper hydraulic cylinder piston body (3) and the lower rubber cylinder (4) of the first hydraulic cylinder piston body assembly (6) are used for fixing and tightly holding the inner piston upper body (13), and the outer sides of the upper rubber cylinder piston body (3) and the lower rubber cylinder piston body are in sliding fit with the hydraulic cylinder outer body (5).
6. The hydraulic booster for oil-water well fishing according to claim 5, wherein: the outer wall of the lower hydraulic cylinder piston body (21) of the first hydraulic cylinder piston body assembly (6) is in sliding fit with the inner wall of the short section (22).
7. The hydraulic booster for oil-water well fishing according to claim 1, wherein: the lower rubber cylinder (4) is of a bowl-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921263128.1U CN210685899U (en) | 2019-08-06 | 2019-08-06 | Oil-water well fishing hydraulic booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921263128.1U CN210685899U (en) | 2019-08-06 | 2019-08-06 | Oil-water well fishing hydraulic booster |
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| Publication Number | Publication Date |
|---|---|
| CN210685899U true CN210685899U (en) | 2020-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921263128.1U Active CN210685899U (en) | 2019-08-06 | 2019-08-06 | Oil-water well fishing hydraulic booster |
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| CN (1) | CN210685899U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113685152A (en) * | 2021-09-17 | 2021-11-23 | 成都西南石大石油工程技术有限公司 | Hydraulic-based reinforcement upward-pulling and releasing device |
| CN115807641A (en) * | 2021-09-13 | 2023-03-17 | 中国石油天然气股份有限公司 | Hydraulic jam releasing tool for sand prevention pipe column |
-
2019
- 2019-08-06 CN CN201921263128.1U patent/CN210685899U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115807641A (en) * | 2021-09-13 | 2023-03-17 | 中国石油天然气股份有限公司 | Hydraulic jam releasing tool for sand prevention pipe column |
| CN113685152A (en) * | 2021-09-17 | 2021-11-23 | 成都西南石大石油工程技术有限公司 | Hydraulic-based reinforcement upward-pulling and releasing device |
| CN113685152B (en) * | 2021-09-17 | 2024-06-11 | 成都西南石大石油工程技术有限公司 | Boosting up-pulling and unlocking device based on hydraulic pressure |
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