CN210714547U - Screen pipe cutting and fishing pipe column - Google Patents
Screen pipe cutting and fishing pipe column Download PDFInfo
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- CN210714547U CN210714547U CN201921177958.2U CN201921177958U CN210714547U CN 210714547 U CN210714547 U CN 210714547U CN 201921177958 U CN201921177958 U CN 201921177958U CN 210714547 U CN210714547 U CN 210714547U
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- 238000005520 cutting process Methods 0.000 title claims abstract description 48
- 238000004873 anchoring Methods 0.000 claims abstract description 28
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 14
- 210000000078 claw Anatomy 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
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Abstract
The utility model discloses a tubular column is salvaged in screen pipe cutting, include first centralizer (1), hydraulic anchoring device (2), hydraulic pressure rotary device (3) and cutting knife (4) that connect gradually through oil pipe, hydraulic pressure rotary device (3) can drive cutting knife (4) rotatory. The screen pipe cutting and salvaging pipe column directly adopts a cutting knife to cut the screen pipe in sections, and the screen pipe is taken out to a well mouth in sections. The load of the conventional lifting and releasing floor equipment is greatly reduced, and the risk of damage to the floor equipment caused by large-load lifting is reduced. And the cutting process is stable, and the phenomenon that the well wall collapses due to hard pulling of the sieve tube can not occur.
Description
Technical Field
The utility model relates to a well workover equipment field, specific is a tubular column is salvaged in screen pipe cutting.
Background
The horizontal well is an important well type for oil and gas development at present, and the completion mode of the horizontal well comprises casing perforation, a screen pipe, an open hole and the like. The completion mode of heavy oil reservoirs is mainly screen pipe completion, but screen pipes are easily damaged due to severe conditions such as sand production and high temperature in development, and normal production is affected. Due to the special well type characteristics of the horizontal well, the damaged screen pipes cannot be directly repaired underground, and the whole well is scrapped.
The existing well repairing technology of the horizontal well can only repair a straight well section or an inclined well section, and can only insert a fishing spear into the horizontal damaged sieve tube to hook the underground sieve tube, so that the vertical tension of the well mouth is difficult to be converted into the horizontal tension of the horizontal section when the well mouth is pulled vigorously, the fishing effect is extremely poor, and the collapse of the well wall is easy to cause.
SUMMERY OF THE UTILITY MODEL
In order to take out the screen pipe of damage in the horizontal well, the utility model provides a tubular column is salvaged in the screen pipe cutting, this screen pipe cutting is salvaged the tubular column and directly adopts the cutting knife to cut the screen pipe segmentation, and the segmentation is taken out to the well head. The load of the conventional lifting and releasing floor equipment is greatly reduced, and the risk of damage to the floor equipment caused by large-load lifting is reduced. And the cutting process is stable, and the phenomenon that the well wall collapses due to hard pulling of the sieve tube can not occur.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a screen pipe cutting salvage tubular column, includes first centralizer, hydraulic pressure anchoring device, hydraulic pressure rotary device and the cutting knife that connects gradually through oil pipe, and hydraulic pressure rotary device can drive the cutting knife rotatory, oil pipe's material is the stainless steel.
The screen pipe cutting fishing string further comprises a second centralizer connected through the oil pipe, and the second centralizer is located between the first centralizer and the hydraulic anchoring device.
The second centralizer is the same as the first centralizer, and the distance between the second centralizer and the first centralizer is 0.1 m.
The first centralizer is model number FZQ-127-35.
The hydraulic anchoring device is of the type YMD-127-70.
The distance between the hydraulic anchoring device and the second centralizer is 0.1 m.
The model of the hydraulic rotating device is YLB-127-70.
The distance between the hydraulic rotating device and the hydraulic anchoring device is 0.1 m.
The model of the cutting knife is CBGYT-127.
The distance between the hydraulic rotating device and the cutting knife is 0.1 m.
The utility model has the advantages that: the screen pipe cutting and salvaging pipe column directly adopts a cutting knife to cut the screen pipe in sections, and the screen pipe is taken out to a well mouth in sections. The load of the conventional lifting and releasing floor equipment is greatly reduced, and the risk of damage to the floor equipment caused by large-load lifting is reduced. And the cutting process is stable, and the phenomenon that the well wall collapses due to hard pulling of the sieve tube can not occur. And (4) fishing the damaged sieve tube, then performing secondary well cementation, recovering the normal production of the oil well, and fully exerting the normal energy advantage of the horizontal well.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is a general schematic diagram of the screen pipe cutting fishing string of the present invention.
Fig. 2 is a schematic view of the screen pipe cutting fishing string according to the present invention.
1. A first centralizer; 2. a hydraulic anchoring device; 3. a hydraulic rotating device; 4. cutting; 5. a screen pipe; 6. a second centralizer; 7. the well wall.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
A screen pipe cutting fishing pipe column comprises a first centralizer 1, a hydraulic anchoring device 2, a hydraulic rotating device 3 and a cutting knife 4 which are sequentially connected through an oil pipe, wherein the hydraulic rotating device 3 can drive the cutting knife 4 to rotate, as shown in figures 1 and 2.
In this embodiment, the screen pipe cutting and fishing pipe string further comprises a second centralizer 6 connected through the oil pipe, the second centralizer 6 is located between the first centralizer 1 and the hydraulic anchoring device 2, the oil pipe is made of stainless steel, namely, the oil pipe is a stainless steel oil pipe, and the oil pipe has multiple sections.
Specifically, as shown in fig. 1, the first centralizer 1 and the second centralizer 6 are both sleeved outside the oil pipe, the upper end of the hydraulic anchoring device 2 is connected with the oil pipe, the lower end of the hydraulic anchoring device 2 is connected with the upper end of the hydraulic rotating device 3 through the oil pipe, and the lower end of the hydraulic rotating device 3 is connected with the upper end of the cutting knife 4 through the oil pipe.
In this embodiment, the second centralizer 6 is identical to the first centralizer 1, and the first centralizer 1, the hydraulic anchoring device 2, the hydraulic rotating device 3 and the cutting knife 4 are all existing commercially available products. The distance between the second centralizer 6 and the first centralizer 1 is 0.1m, the model of the first centralizer 1 is FZQ-127-35, and the manufacturer of the first centralizer 1 is Dalian Huake mechanical Co.
The first centralizer 1 and the second centralizer 6 function to center the screen cut fishing string in the well. The hydraulic anchoring device 2 is used for fixing the screen cutting fishing pipe column with the wall of a well in the well under the action of pressure fluid, the hydraulic rotating device 3 is used for driving the cutter 4 to rotate under the action of the pressure fluid, and the cutter 4 can cut the screen 5 when rotating, as shown in figure 2.
In the present embodiment, hydraulic anchor 2 is of the type YMD-127-70, and the manufacturer of hydraulic anchor 2 is Dalian Huake mechanical Co. The distance between the hydraulic anchoring device 2 and the second centralizer 6 is 0.1 m. The manufacturer of the hydraulic rotating device 3 is Dalian Huake mechanical Co., Ltd, and the model of the hydraulic rotating device 3 is YLB 114-70. The distance between the hydraulic rotation means 3 and the hydraulic anchoring means 2 is 0.1 m. The manufacturer of the cutting knife 4 is Dalian Huake mechanical Co., Ltd, and the model of the cutting knife 4 is CBGYT-114. The distance between the hydraulic rotating device 3 and the cutting knife 4 is 0.1 m.
The operation of the screen cutting fishing string is described below.
As shown in fig. 2, the screen cut fishing string is lowered from the wellhead of the horizontal well, and comprises a cutting knife 4, a hydraulic rotating device 3, a hydraulic anchoring device 2, a second centralizer 6 and a first centralizer 1 from bottom to top. The screen pipe is lowered to cut the fishing string until the cutter 4 is positioned at the upper part in the screen pipe 5, and the first centralizer 1 and the second centralizer 6 are contacted with the wall 7 of the horizontal well.
At the moment, the ground is pressed, and the anchoring claws on the hydraulic anchoring device 2 are protruded to the periphery and tightly attached to the inner wall of the well wall on the upper part of the sieve tube to be cut. Continuing to pressurize, the hydraulic rotating device 3 starts to rotate and drives the cutter 4 to rotate and the blade of the cutter 4 to extend out, the cutter 4 rotates at a high speed to cut the sieve tube 5, after cutting, the pressurizing is stopped to enable the blade of the cutter 4 to be withdrawn, the hydraulic rotating device 3 stops rotating, the anchoring claw on the hydraulic anchoring device 2 is withdrawn to finish anchoring, the whole pipe column 1m is lowered, the anchoring claw on the hydraulic anchoring device 2 is outwardly sprung to hook the cut sieve tube by the pressurizing, and the sieve tube cutting and salvaging pipe column is lifted to bring the cut and separated sieve tube out of a well mouth.
And then, the sieve tube is lowered again to cut the fishing pipe column, the process is repeated continuously until the sieve tube is completely cut, and the sieve tube is lifted out of the well mouth in sections.
The above description is only for the specific embodiments of the present invention, and the scope of the present invention can not be limited by the embodiments, so that the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should still belong to the scope covered by the present patent. In addition, the utility model provides an between technical feature and the technical feature, between technical feature and technical scheme, technical scheme and the technical scheme all can the independent assortment use.
Claims (10)
1. The utility model provides a screen pipe cutting salvage tubular column, its characterized in that, this screen pipe cutting salvage tubular column includes first centralizer (1), hydraulic anchoring device (2), hydraulic pressure rotary device (3) and cutting knife (4) that connect gradually through oil pipe, and hydraulic pressure rotary device (3) can drive cutting knife (4) rotatory, oil pipe's material is the stainless steel.
2. Screen cut fishing string according to claim 1, characterized in that it further comprises a second centralizer (6) connected by the tubing, the second centralizer (6) being located between the first centralizer (1) and the hydraulic anchoring device (2).
3. Screen cut fishing string according to claim 2, characterised in that the second centralizer (6) is identical to the first centralizer (1), the distance between the second centralizer (6) and the first centralizer (1) being 0.1 m.
4. Screen cut fishing string according to claim 3, characterized in that the first centralizer (1) is model number FZQ-127-35.
5. Screen cutting fishing string according to claim 2, characterized in that the hydraulic anchoring device (2) is of the type YMD-127-70.
6. Screen cutting fishing string according to claim 5, characterized in that the distance between the hydraulic anchoring device (2) and the second centralizer (6) is 0.1 m.
7. Screen cutting fishing string according to claim 1, characterized in that the hydraulic swivel (3) is of the type yl b-127-70.
8. Screen cut fishing string according to claim 1, characterized in that the distance between the hydraulic rotation device (3) and the hydraulic anchoring device (2) is 0.1 m.
9. Screen cutting fishing string according to claim 1, characterised in that the cutter (4) is of the type CBGYT-127.
10. Screen cutting fishing string according to claim 1, characterized in that the distance between the hydraulic rotation device (3) and the cutter (4) is 0.1 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921177958.2U CN210714547U (en) | 2019-07-25 | 2019-07-25 | Screen pipe cutting and fishing pipe column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921177958.2U CN210714547U (en) | 2019-07-25 | 2019-07-25 | Screen pipe cutting and fishing pipe column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210714547U true CN210714547U (en) | 2020-06-09 |
Family
ID=70935216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921177958.2U Active CN210714547U (en) | 2019-07-25 | 2019-07-25 | Screen pipe cutting and fishing pipe column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210714547U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112049603A (en) * | 2020-09-14 | 2020-12-08 | 中国海洋石油集团有限公司 | Method for packing outer annular space of sieve tube |
| CN112282686A (en) * | 2019-07-25 | 2021-01-29 | 中国石油天然气股份有限公司 | Screen pipe cutting and fishing pipe column |
-
2019
- 2019-07-25 CN CN201921177958.2U patent/CN210714547U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112282686A (en) * | 2019-07-25 | 2021-01-29 | 中国石油天然气股份有限公司 | Screen pipe cutting and fishing pipe column |
| CN112049603A (en) * | 2020-09-14 | 2020-12-08 | 中国海洋石油集团有限公司 | Method for packing outer annular space of sieve tube |
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