CN114198042B - Ball throwing type cutting and fishing integrated tool and application method thereof - Google Patents
Ball throwing type cutting and fishing integrated tool and application method thereof Download PDFInfo
- Publication number
- CN114198042B CN114198042B CN202110845736.9A CN202110845736A CN114198042B CN 114198042 B CN114198042 B CN 114198042B CN 202110845736 A CN202110845736 A CN 202110845736A CN 114198042 B CN114198042 B CN 114198042B
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- China
- Prior art keywords
- wall
- ball seat
- slips
- ball
- slip
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- 238000005520 cutting process Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000011084 recovery Methods 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 10
- 210000000078 claw Anatomy 0.000 claims description 9
- 238000010008 shearing Methods 0.000 claims description 9
- 238000005086 pumping Methods 0.000 claims description 3
- 238000003801 milling Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
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
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/12—Grappling tools, e.g. tongs or grabs
- E21B31/16—Grappling tools, e.g. tongs or grabs combined with cutting or destroying means
-
- 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
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/12—Grappling tools, e.g. tongs or grabs
- E21B31/20—Grappling tools, e.g. tongs or grabs gripping internally, e.g. fishing spears
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Marine Sciences & Fisheries (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
Abstract
The invention provides a ball throwing type cutting and fishing integrated tool and a use method thereof. The tool has the advantages of simple structure, convenient use and long service life, and can realize one-time operation of cutting, milling and salvaging.
Description
Technical Field
The invention relates to the technical field of oil-gas field drilling and completion salvaging, in particular to a ball throwing type cutting and salvaging integrated tool and a use method thereof.
Background
In the prior art, a plurality of oil fields with large sizes enter a middle-late development stage, the number of workover operation times is increased year by year, and the progress and development of workover processes and workover tools are brought along with the increase of the requirements of cutting and fishing tools of field operation teams. At present, conventional cutting and salvaging operations are divided into two parts, namely cutting and salvaging, firstly, conventional first-cutting and milling equipment is put into the conventional first-cutting and milling equipment to operate a target position, and after cutting and milling are completed, a salvaging tool is put into the conventional first-cutting and milling equipment to carry out salvaging operations. At present, a reliable cutting, milling and salvaging integrated tool does not exist, and one-pass operation is performed. Therefore, the problems of long well repairing period, low efficiency, easy inclination and deformation of the cut and milled upper layer tubular post after lifting the cutting knife device, and the like are caused, and the secondary salvaging accident occurs.
Disclosure of Invention
The invention overcomes the defects in the prior art, and the existing cutting and salvaging operation tool is divided into two parts, namely cutting and salvaging, so that one-pass operation cannot be performed.
The aim of the invention is achieved by the following technical scheme.
The utility model provides a throw ball type cuts and drags for integrative instrument, includes upper portion recovery fishing tool and lower part cutting tool, upper portion recovery fishing tool includes body, ball seat, center tube, pressure cap, slips and lower clutch offer the circulation hole on the upper portion lateral wall of body form a spacing step on the lower part inner wall of body the last zigzag thread that forms of body inner wall of spacing step top, the head end outer wall of slips with the tail end inner wall threaded connection of body, the ball seat sets up in this body, just the ball seat with the body passes through the shear pin and links to each other, the middle part inner wall of ball seat with the head end outer wall threaded connection of center tube, the head end of center tube stretches into in the ball seat, the tail end of ball seat forms an elastic claw form a helicitic texture on the outer wall of elastic claw, the helicitic texture with zigzag thread cooperatees the tail end outer wall of center tube with the head end inner wall threaded connection of pressure cap form a pressure cap slope section on the middle part outer wall of pressure cap, the middle part inner wall of pressure cap and the inner wall of pressure cap portion and the inner wall of pressure cap set up through the inner wall of pressure cap and the inner wall of pressure cap down the inner wall of the middle part of the pressure cap and the inner wall of the pressure joint.
The inner wall of the tail end of the slip forms a slip expanding section, and the slip expanding section is connected with the upper part of the slip through a slip slope structure.
And sealing rings are arranged between the inner walls of the body and the outer walls of the ball seats at two sides of the circulating holes.
Left-handed thread connection structures are adopted between the body and the slips and between the body and the ball seat.
The application method of the ball throwing type cutting and fishing integrated tool comprises the following steps:
step 1, connecting an upper recovery fishing tool with a lower cutting tool, then putting the upper recovery fishing tool into a well together, and starting a pump to perform cutting operation after reaching the target well depth;
step 2, after the cutting operation is finished, a ball is thrown into the upper recovery fishing tool, the ball enters the ball seat, the sealing in the pipe column is realized, downward pressurization is realized, a shearing pin between the ball seat and the body is sheared, an elastic claw of the ball seat is connected with the body through sawtooth threads, after the shearing pin is sheared, the ball seat, the central pipe, the pressing cap and the lower joint move downward together under the action of downward pressure, so that the slips are exposed out of the slip cavity, at the moment, the pressing cap slope structure of the pressing cap is contacted with the slip slope structure of the slips, the pumping pressure is continuously raised, the slips are finally meshed with the pipe body of the sleeve, and the sealing between the outer wall of the pipe column and the inner wall of the sleeve is realized;
step 3, when the ball seat moves below the circulation hole, opening the circulation hole, establishing a pipe column and a circulation channel of a space between the pipe column and a casing ring, stopping moving the ball seat, lifting the pipe column, and fishing out the cut casing body;
and 4, when the tonnage of the lifting pipe column reaches the design tonnage, and the cut sleeve pipe body does not move upwards, the upper part of the sleeve pipe body needs to be taken off to recover the fishing tool, the pipe column is rotated forwards, the body and the slips are connected through left-handed buckles, the slips are connected with the pressing cap through keys, when the pipe column is rotated forwards, the body and the slips are moved relatively, and finally, the ball seat drives the central pipe and the pressing cap to move upwards, the slips are separated, the pipe column is lifted upwards, and the upper part of the sleeve pipe body is recovered to be taken off.
The beneficial effects of the invention are as follows: the tool can complete cutting and salvaging one-pass operation, saves operation time, improves operation efficiency and reduces operation cost.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure of the tee of the present invention;
FIG. 3 is a schematic view of the structure of the zigzag thread on the inner wall of the body according to the present invention;
in the figure: 1 is an upper salvaging and recycling tool, 2 is a lower cutting tool, 3 is a body, 4 is a ball seat, 5 is a central tube, 6 is a press cap, 7 is a slip, 8 is a lower joint, 9 is a shearing pin, 10 is a circulation hole, 11 is a sealing ring, and 12 is a ball.
Other relevant drawings may be made by those of ordinary skill in the art from the above figures without undue burden.
Detailed Description
The technical scheme of the invention is further described by specific examples.
Example 1
A ball throwing type cutting and fishing integrated tool comprises an upper part recovery fishing tool 1 and a lower part cutting tool 2, wherein the upper part recovery fishing tool 1 comprises a body 3, a ball seat 4, a central tube 5, a pressing cap 6, slips 7 and a lower joint 8, a circulation hole 10 is formed on the upper side wall of the body 3, a limit step is formed on the lower inner wall of the body 3, a zigzag thread is formed on the inner wall of the body 3 above the limit step, the outer wall of the head end of the slips 7 is in threaded connection with the inner wall of the tail end of the body 3, the ball seat 4 is arranged in the body 3, the ball seat 4 is connected with the body 3 through a shearing pin 9, the inner wall of the middle part of the ball seat 4 is in threaded connection with the outer wall of the head end of the central tube 5, the head end of the central tube 5 stretches into the ball seat 4, the tail end of the ball seat 4 forms an elastic claw, A thread structure is formed on the outer wall of the elastic claw, the thread structure is matched with zigzag threads, the outer wall of the tail end of the central pipe 5 is in threaded connection with the inner wall of the head end of the pressing cap 6, a pressing cap expanding section is formed on the outer wall of the middle part of the pressing cap 6, the pressing cap expanding section is connected with the outer wall of the upper part of the pressing cap through a pressing cap slope structure, the outer wall of the tail end of the pressing cap 6 is in threaded connection with the inner wall of the middle part of the lower joint 8, a slip cavity is formed by the inner wall of the upper part of the lower joint 8, the outer wall of the middle part of the pressing cap 6 and the inner wall of the body 3, the slips 7 are arranged in the slip cavity, the inner wall of the lower part of the slips 7 is in key connection with the outer wall of the middle part of the pressing cap 6, and the outer wall of the tail end of the lower joint 8 is in threaded connection with the inner wall of the head end of the lower cutting tool 2.
Example two
On the basis of the first embodiment, a slip expanding section is formed on the inner wall of the tail end of the slip 7, and the slip expanding section is connected with the upper part of the slip 7 through a slip slope structure.
A sealing ring 11 is provided between the inner wall of the body 3 and the outer wall of the ball seat 4 on both sides of the circulation hole 10.
Left-handed thread connection structures are adopted between the body 3 and the slips 7 and between the body 3 and the ball seat 4.
Example III
The application method of the ball throwing type cutting and fishing integrated tool comprises the following steps:
step 1, connecting an upper recovery fishing tool 1 with a lower cutting tool 2, then putting the lower recovery fishing tool into a well together, and starting a pump to perform cutting operation after reaching a target well depth;
after the cutting operation is finished, a ball 12 is thrown into the upper recovery fishing tool 1, the ball 12 enters the ball seat 4, sealing in a pipe column is achieved, downward pressurization is achieved, a shearing pin 9 between the ball seat 4 and the body 3 is sheared, an elastic claw of the ball seat 4 is connected with the body 3 through sawtooth threads, after the shearing pin 9 is sheared, the ball seat 4, the central pipe 5, the pressing cap 6 and the lower joint 8 move downward under the action of downward pressure, the slips 7 are exposed out of a slip cavity, at the moment, the pressing cap slope structure of the pressing cap 6 is contacted with the slip slope structure of the slips 7, pumping pressure is continuously increased, the slips 7 are finally meshed with a pipe body of a sleeve, and sealing between the outer wall of the pipe column and the inner wall of the sleeve is achieved;
step 3, when the ball seat 4 moves below the circulation hole 10, opening the circulation hole 10, establishing a pipe column and a circulation channel of a space between the pipe column and a casing ring, stopping moving the ball seat 4, lifting the pipe column, and fishing out the cut casing body;
step 4, when the tonnage of the lifting pipe column reaches the design tonnage, and the cut casing pipe body does not move upwards, the upper part of the pipe column is required to be taken off to recover the fishing tool 1, the pipe column is rotated forwards, the body 3 and the slips 7 and the body 3 and the ball seat 4 are connected through left-handed buckles, the slips 7 and the pressing cap 6 are connected through keys, when the pipe column is rotated forwards, the body 3 and the slips 7 and the body 3 and the ball seat 4 are moved relatively, finally, the ball seat 4 drives the central pipe 5 and the pressing cap 7 to move upwards, the slips 7 are separated, the lifting pipe column is lifted, and further the upper part of the pipe column is completed to recover the fishing tool 1.
Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments for ease of description to describe one element or feature's relationship to another element or feature's illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "under" other elements or features would then be oriented "over" the other elements or features. Thus, the exemplary term "lower" may encompass both an upper and lower orientation. The device may be otherwise positioned (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Moreover, relational terms such as "first" and "second", and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.
The foregoing detailed description of the invention has been presented for purposes of illustration and description, but is not intended to limit the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (5)
1. The utility model provides a throw ball formula cuts and drags for integrative instrument which characterized in that: including upper portion recovery fishing tool and lower part cutting tool, upper portion recovery fishing tool includes body, ball seat, center tube, pressure cap, slips and lower clutch offer the circulation hole on the upper portion lateral wall of body the last spacing step that forms of lower part inner wall of body form a zigzag thread on the body inner wall of spacing step top, the head end outer wall of slips with the tail end inner wall threaded connection of body, the ball seat sets up in this body, just the ball seat with the body passes through shearing pin and links to each other, the middle part inner wall of ball seat with the head end outer wall threaded connection of center tube, the head end of center tube stretches into in the ball seat, the tail end of ball seat forms an elastic claw form a helicitic texture on the outer wall of elastic claw, helicitic texture with zigzag thread cooperatees the tail end outer wall of center tube with the head end inner wall threaded connection of pressure cap form a pressure cap expanded diameter section on the middle part outer wall of pressure cap expanded diameter section passes through the pressure cap sloping surface structure and links to each other with the tail end upper end outer wall of pressure cap, the inner wall of pressure cap and the inner wall of slip set up under the inner wall of pressure cap and the inner wall of slip.
2. The ball throwing, cutting and fishing integrated tool according to claim 1, wherein: the inner wall of the tail end of the slip forms a slip expanding section, and the slip expanding section is connected with the upper part of the slip through a slip slope structure.
3. The ball throwing, cutting and fishing integrated tool according to claim 1, wherein: and sealing rings are arranged between the inner walls of the body and the outer walls of the ball seats at two sides of the circulating holes.
4. The ball throwing, cutting and fishing integrated tool according to claim 1, wherein: left-handed thread connection structures are adopted between the body and the slips and between the body and the ball seat.
5. A method of using a ball throwing, cutting and fishing integrated tool as claimed in any one of claims 1 to 4, wherein: the method comprises the following steps of:
step 1, connecting an upper recovery fishing tool with a lower cutting tool, then putting the upper recovery fishing tool into a well together, and starting a pump to perform cutting operation after reaching the target well depth;
step 2, after the cutting operation is finished, a ball is thrown into the upper recovery fishing tool, the ball enters the ball seat, the sealing in the pipe column is realized, downward pressurization is realized, a shearing pin between the ball seat and the body is sheared, an elastic claw of the ball seat is connected with the body through sawtooth threads, after the shearing pin is sheared, the ball seat, the central pipe, the pressing cap and the lower joint move downward together under the action of downward pressure, so that the slips are exposed out of the slip cavity, at the moment, the pressing cap slope structure of the pressing cap is contacted with the slip slope structure of the slips, the pumping pressure is continuously raised, the slips are finally meshed with the pipe body of the sleeve, and the sealing between the outer wall of the pipe column and the inner wall of the sleeve is realized;
step 3, when the ball seat moves below the circulation hole, opening the circulation hole, establishing a pipe column and a circulation channel of a space between the pipe column and a casing ring, stopping moving the ball seat, lifting the pipe column, and fishing out the cut casing body;
and 4, when the tonnage of the lifting pipe column reaches the design tonnage, and the cut sleeve pipe body does not move upwards, the upper part of the sleeve pipe body needs to be taken off to recover the fishing tool, the pipe column is rotated forwards, the body and the slips are connected through left-handed buckles, the slips are connected with the pressing cap through keys, when the pipe column is rotated forwards, the body and the slips are moved relatively, and finally, the ball seat drives the central pipe and the pressing cap to move upwards, the slips are separated, the pipe column is lifted upwards, and the upper part of the sleeve pipe body is recovered to be taken off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110845736.9A CN114198042B (en) | 2021-07-26 | 2021-07-26 | Ball throwing type cutting and fishing integrated tool and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110845736.9A CN114198042B (en) | 2021-07-26 | 2021-07-26 | Ball throwing type cutting and fishing integrated tool and application method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114198042A CN114198042A (en) | 2022-03-18 |
| CN114198042B true CN114198042B (en) | 2024-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110845736.9A Active CN114198042B (en) | 2021-07-26 | 2021-07-26 | Ball throwing type cutting and fishing integrated tool and application method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN114198042B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114718501B (en) * | 2022-03-31 | 2023-07-28 | 中海油能源发展股份有限公司 | Quick tieback sealing device for sleeve and operation method thereof |
| CN116146135B (en) * | 2023-04-23 | 2023-07-21 | 中石化西南石油工程有限公司 | A cover and drag for integrated device that is used for constant pressure trap plugging tool fish of well drilling |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB219274A (en) * | 1923-07-19 | 1924-12-18 | Kammerer Corp | Tool for cutting and removing pipe from wells |
| GB340292A (en) * | 1929-07-08 | 1931-01-08 | Doheny Stone Drill Co | Improvements in or relating to fishing tools for use in well drilling operations |
| GB681783A (en) * | 1950-12-04 | 1952-10-29 | Baker Oil Tools Inc | Removable sub-surface well tools |
| CN201448080U (en) * | 2009-07-11 | 2010-05-05 | 东营市铁人石油机具有限公司 | Wash-over milling fishing integrated tool |
| CN201610731U (en) * | 2010-01-19 | 2010-10-20 | 中国石油化工股份有限公司 | Casing milling and salvaging integrated control tool |
| CN103321625A (en) * | 2013-07-09 | 2013-09-25 | 中国石油集团渤海钻探工程有限公司 | Rotation-free locking ring type sliding sleeve with ball seat capable of being taken out |
| CN205858234U (en) * | 2016-07-08 | 2017-01-04 | 中国海洋石油总公司 | Ball-throwing type rinses cutting one cutter |
| CN207960556U (en) * | 2018-02-27 | 2018-10-12 | 中石化石油工程技术服务有限公司 | Cover milling fishing integrated attachment device |
| CN109113684A (en) * | 2018-10-28 | 2019-01-01 | 中国石油化工股份有限公司 | Small casing producing well mechanical sand control method and mechanical sand control tubing string and fishing tool |
| CN109441386A (en) * | 2018-12-19 | 2019-03-08 | 贵州高峰石油机械股份有限公司 | A kind of device being completed at the same time seabed Casing-Cutting and capping operation |
| CN109458151A (en) * | 2018-12-19 | 2019-03-12 | 贵州高峰石油机械股份有限公司 | A kind of device for being completed at the same time sub-sea drilled wells cutting and salvaging with capping operation |
| CN213711006U (en) * | 2020-12-09 | 2021-07-16 | 中国石油天然气集团有限公司 | Mechanical cutting and fishing integrated device |
-
2021
- 2021-07-26 CN CN202110845736.9A patent/CN114198042B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB219274A (en) * | 1923-07-19 | 1924-12-18 | Kammerer Corp | Tool for cutting and removing pipe from wells |
| GB340292A (en) * | 1929-07-08 | 1931-01-08 | Doheny Stone Drill Co | Improvements in or relating to fishing tools for use in well drilling operations |
| GB681783A (en) * | 1950-12-04 | 1952-10-29 | Baker Oil Tools Inc | Removable sub-surface well tools |
| CN201448080U (en) * | 2009-07-11 | 2010-05-05 | 东营市铁人石油机具有限公司 | Wash-over milling fishing integrated tool |
| CN201610731U (en) * | 2010-01-19 | 2010-10-20 | 中国石油化工股份有限公司 | Casing milling and salvaging integrated control tool |
| CN103321625A (en) * | 2013-07-09 | 2013-09-25 | 中国石油集团渤海钻探工程有限公司 | Rotation-free locking ring type sliding sleeve with ball seat capable of being taken out |
| CN205858234U (en) * | 2016-07-08 | 2017-01-04 | 中国海洋石油总公司 | Ball-throwing type rinses cutting one cutter |
| CN207960556U (en) * | 2018-02-27 | 2018-10-12 | 中石化石油工程技术服务有限公司 | Cover milling fishing integrated attachment device |
| CN109113684A (en) * | 2018-10-28 | 2019-01-01 | 中国石油化工股份有限公司 | Small casing producing well mechanical sand control method and mechanical sand control tubing string and fishing tool |
| CN109441386A (en) * | 2018-12-19 | 2019-03-08 | 贵州高峰石油机械股份有限公司 | A kind of device being completed at the same time seabed Casing-Cutting and capping operation |
| CN109458151A (en) * | 2018-12-19 | 2019-03-12 | 贵州高峰石油机械股份有限公司 | A kind of device for being completed at the same time sub-sea drilled wells cutting and salvaging with capping operation |
| CN213711006U (en) * | 2020-12-09 | 2021-07-16 | 中国石油天然气集团有限公司 | Mechanical cutting and fishing integrated device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114198042A (en) | 2022-03-18 |
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