CN202718647U - Abandonment tool capable of being locked on position - Google Patents
Abandonment tool capable of being locked on position Download PDFInfo
- Publication number
- CN202718647U CN202718647U CN 201220435545 CN201220435545U CN202718647U CN 202718647 U CN202718647 U CN 202718647U CN 201220435545 CN201220435545 CN 201220435545 CN 201220435545 U CN201220435545 U CN 201220435545U CN 202718647 U CN202718647 U CN 202718647U
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- China
- Prior art keywords
- piston
- slips
- abandoned well
- upper piston
- described body
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- 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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Abstract
The utility model discloses an abandonment tool capable of being locked on a position. The abandonment tool capable of being fixed on the position comprises a body. A guiding shoe is arranged at the front end of the body and a slip is arranged at a rear segment of the body. The slip can move axially in a way of corresponding to the body and the slip also can rotate in a way of corresponding to a circumferential direction. When the slip moves upwards, the outer diameter of the slip expands. An upper piston is arranged in the upper segment of the body. A through hole is arranged in the middle of the upper piston. A brace rod connected with the lower end of the upper piston is arranged on the middle segment of the body. When the upper piston moves downwards, the brace rod drives the slip to move upwards. A lower piston is arranged in the lower segment of the body and a through hole is arranged in the middle of the upper piston. An abandonment cutting knife connected with the lower end of the lower piston is arranged on the lower segment of the body. When the lower piston moves downwards, the lower piston opens the abandonment cutting knife by ejecting. In process of working, the abandonment tool can be locked on a position so that the cutting knife does not move upwards or downwards and efficiency is improved.
Description
Technical field
The utility model belongs to the technical field of oilfield drilling, specifically refer to a kind of after oil drilling finishes, the instrument that interim or permanent abandoned well operation is used.
Background technology
In present prospect pit operation, after drillng operation finishes, need to carry out interim or permanent abandoned well operation.But conventional abandoned well instrument can only be in the rig floor permanent position, can cause the up and down of downhole pipeline like this, it is special in the situation that the pipe string is long, add that hydraulic blow is inhomogeneous, rocking of the drift of platform and marine riser, the up and down amplitude of cutter can be larger, and this must cause clipping time long, even cuts unsuccessfully.
The marine drilling expense is unusually expensive, and generally, semisubmersible platform (shallow water) comprehensive cost needs 2,000,000 yuan/day of RMB, and the jack-up unit comprehensive cost needs 1,500,000 yuan/day of RMB.Improving the operation timeliness is the key of saving drilling cost.Therefore, provide a kind of simple in structure, convenient operation, safe and reliable and can improve to a certain extent the operation timeliness and become the industry technical issues that need to address with the abandoned well instrument that reduces the marine drilling cost.
Above-mentioned discussion content purpose is to introduce to the reader various aspects of technology that may be relevant with the various aspects of the present utility model that below will be described and/or advocate, believe that this discussion content helps to provide background information for the reader, to be conducive to understanding better various aspects of the present utility model, therefore, should be appreciated that it is to read these discussions with this angle, rather than admit prior art.
The utility model content
The purpose of this utility model is to avoid deficiency of the prior art and abandoned well instrument that a kind of lockable position is provided, to solve offshore drilling after finishing during interim or permanent abandoned well, the problem that the Casing-Cutting time is oversize or cutting is failed.
The purpose of this utility model is achieved through the following technical solutions:
The abandoned well instrument of a kind of lockable position is provided, comprise body, the front end of body is provided with guide shoe, the back segment of described body is provided with slips, described slips can move axially relative to body also can be relative to circumferentially rotating, when on the slips when mobile, the external diameter of slips magnifies, be provided with upper piston in the epimere of described body, the upper piston middle part is provided with through hole, and the stage casing of described body is provided with the strut that is connected on the upper piston lower end, when described upper piston moves down, described strut drives described slips and moves up, be provided with lower piston in the hypomere of described body, the lower piston middle part is provided with through hole, and the hypomere of described body is provided with the abandoned well cutter that is connected on the lower piston lower end, when described lower piston moved down, the lower piston top pressed described abandoned well cutter that it is opened.
Wherein, be provided with the upper reset spring that described upper piston is moved up in the described body epimere.
Wherein, be provided with the lower back-moving spring that described lower piston is moved up in the described body hypomere.
Wherein, the middle part of described strut and described body are hinged, and the inner of strut is connected to the upper piston lower end, and the outer end of strut is connected to described slips lower end.
Wherein, be provided with ball between described body and the slips.
Wherein, the conical surface of the back segment outer peripheral face of described body for upwards enlarging gradually.
After this abandoned well instrument enters sleeve pipe, can under a less waterpower, upper piston be moved down, strut is opened, force on the slips and move, thereby slips produces radial tension, stings tightly by the inwall of sleeve pipe, applies the pressure of the drill about 5KN again, can make the abandoned well instrument can not be up and down, reach the purpose of latched position.After the instrument locking, strengthen waterpower, following abandoned well cutter is opened, the beginning Casing-Cutting.Cutter at this time can not be up and down, and usefulness is improved during operation.
Main beneficial effect of the present utility model:
1) this tool construction is simple, and cost of investment is low.
2) this utility model instrument can make the operation timeliness be improved, and has reduced the failed risk of cutting.
3) this utility model tool operation is simple and convenient, oil gas field extensive use at sea.
Description of drawings
The utility model is described in further detail to utilize accompanying drawing, but the embodiment in the accompanying drawing does not consist of any restriction of the present utility model, for those of ordinary skill in the art, under the prerequisite of not paying creative work, can also obtain according to the following drawings other accompanying drawing.
Fig. 1 is the structural representation of the abandoned well instrument of lockable position.
In Fig. 1, include: 1---guide shoe, 2---abandoned well cutter, 3---lower back-moving spring, 4---lower piston, 5---body, 6---strut, 7---slips, 8---upper reset spring, 9---upper piston, 10---ball.
The specific embodiment
In order to make those skilled in the art understand better the technical solution of the utility model, below in conjunction with the drawings and specific embodiments the utility model is described in further detail, need to prove, in the situation that do not conflict, the application's embodiment and the feature among the embodiment can make up mutually.
Core of the present utility model is to provide the abandoned well instrument of a kind of lockable position, its lockable position, and during with interim after the solution offshore drilling end or permanent abandoned well, the problem that the Casing-Cutting time is oversize or cutting is failed.
As shown in Figure 1, the abandoned well instrument of lockable described in the utility model position comprises body 5, and body 5 is substantially cylindrical.The front end of described body 5 is provided with guide shoe 1, and guide shoe 1 is used for guiding body 5 and is lowered to sleeve pipe.The back segment of described body 5 is provided with slips 7, and described slips 7 can move axially and can be relative to circumferentially rotating relative to body 5, when on the slips 7 when mobile, the external diameter of slips 7 magnifies, thus slips produces radial tension, stings the inwall of tight sleeve pipe.Concrete, the conical surface of the back segment outer peripheral face of described body 5 for upwards enlarging gradually.When on the described slips 7 when mobile, under the effect of the conical surface, described slips 7 external diameters magnify gradually.Be provided with ball 10 between described body 5 and the slips 7, ball 10 is used for reducing the resistance that slips 7 circumferentially rotates relative to body 5.Be provided with upper piston 9 in the epimere of described body 5, upper piston 9 can move down under the effect of waterpower.Upper piston 9 middle parts are provided with through hole, and through hole is used for liquid to be passed through.Be provided with the upper reset spring 8 that described upper piston 9 is moved up in described body 5 epimeres.The stage casing of described body 5 is provided with the strut 6 that is connected on upper piston 9 lower ends, and when described upper piston 9 moved down, described strut 6 drove described slips 7 and moves up.Concrete, the middle part of described strut 6 and described body 5 are hinged, and the inner of strut 6 is connected to upper piston 9 lower ends, and the outer end of strut 6 is connected to described slips 7 lower ends.When described upper piston 9 moved down, upper piston 9 pushed away the inner of strut 6 downwards, and strut 6 rotates along pin joint, and the outer end of strut 6 moves up, and moves up thereby drive described slips 7.Be provided with lower piston 4 in the hypomere of described body 5, lower piston 4 can move down under the effect of waterpower.Lower piston 4 middle parts are provided with through hole, and through hole is used for liquid to be passed through.Be provided with the lower back-moving spring 3 that described lower piston 4 is moved up in described body 5 hypomeres.The hypomere of described body 5 is provided with the abandoned well cutter 2 that is connected on lower piston 4 lower ends, and when described lower piston 4 moved down, lower piston 4 tops pressed described abandoned well cutter 2 that it is opened.
Use abandoned well instrument described in the utility model to carry out operation, concrete operations are as follows:
1. make up according to a conventional method this abandoned well tool pipe string, and down to depth of cut;
2. slow turn on pump moves downward upper piston, thereby forces the galianconism strut to open, and make on the slips and move, thereby slips produces radial tension, stings the inwall of tight sleeve pipe;
3. try to transfer whole pipe string (can not open elevator), when rig floor the pressure of the drill table show to surpass 5KN, try to transfer tool string, when the pressure of the drill continues to increase, when can not machinery transferring, represent that this locking tool enters into force, cutting position locks;
4. continue to strengthen waterpower, cutter is opened, operation procedure begins the cutting cover routinely.
Set forth a lot of details so that fully understand the utility model in the top description, still, the utility model can also adopt other to be different from other modes described here and implement, and therefore, can not be interpreted as the restriction to the utility model protection domain.
In a word; although the utility model has exemplified above-mentioned preferred embodiment; but should illustrate; although those skilled in the art can carry out various variations and remodeling; unless such variation and remodeling have departed from scope of the present utility model, otherwise all should be included in the protection domain of the present utility model.
Claims (6)
1. the abandoned well instrument of a lockable position, comprise body (5), the front end of body (5) is provided with guide shoe (1), it is characterized in that: the back segment of described body (5) is provided with slips (7), described slips (7) can move axially relative to body (5) also can be relative to circumferentially rotating, when slips (7) is gone up to movement, the external diameter of slips (7) magnifies, be provided with upper piston (9) in the epimere of described body (5), upper piston (9) middle part is provided with through hole, the stage casing of described body (5) is provided with the strut (6) that is connected on upper piston (9) lower end, when described upper piston (9) when moving down, described strut (6) drives described slips (7) and moves up, be provided with lower piston (4) in the hypomere of described body (5), lower piston (4) middle part is provided with through hole, and the hypomere of described body (5) is provided with the abandoned well cutter (2) that is connected on lower piston (4) lower end, when described lower piston (4) when moving down, lower piston (4) top presses described abandoned well cutter (2) that it is opened.
2. the abandoned well instrument of lockable according to claim 1 position is characterized in that: be provided with the upper reset spring (8) that described upper piston (9) is moved up in described body (5) epimere.
3. the abandoned well instrument of lockable according to claim 1 position is characterized in that: be provided with the lower back-moving spring (3) that described lower piston (4) is moved up in described body (5) hypomere.
4. the abandoned well instrument of lockable according to claim 1 position, it is characterized in that: the middle part of described strut (6) and described body (5) are hinged, the inner of strut (6) is connected to upper piston (9) lower end, and the outer end of strut (6) is connected to described slips (7) lower end.
5. it is characterized in that: be provided with ball (10) between described body (5) and the slips (7) according to claim 1 and 2 or the abandoned well instrument of 3 or 4 described lockable positions.
6. the abandoned well instrument of lockable according to claim 5 position is characterized in that: the conical surface of the back segment outer peripheral face of described body (5) for upwards enlarging gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220435545 CN202718647U (en) | 2012-08-30 | 2012-08-30 | Abandonment tool capable of being locked on position |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220435545 CN202718647U (en) | 2012-08-30 | 2012-08-30 | Abandonment tool capable of being locked on position |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202718647U true CN202718647U (en) | 2013-02-06 |
Family
ID=47620473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220435545 Expired - Fee Related CN202718647U (en) | 2012-08-30 | 2012-08-30 | Abandonment tool capable of being locked on position |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202718647U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797428A (en) * | 2012-08-30 | 2012-11-28 | 中国海洋石油总公司 | Well abandoning tool capable of locking position |
-
2012
- 2012-08-30 CN CN 201220435545 patent/CN202718647U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797428A (en) * | 2012-08-30 | 2012-11-28 | 中国海洋石油总公司 | Well abandoning tool capable of locking position |
| CN102797428B (en) * | 2012-08-30 | 2015-03-25 | 中国海洋石油总公司 | Well abandoning tool capable of locking position |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130206 Termination date: 20150830 |
|
| EXPY | Termination of patent right or utility model |