CN106761520B - Mechanical sleeving and fishing integrated tool and using method thereof - Google Patents
Mechanical sleeving and fishing integrated tool and using method thereof Download PDFInfo
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- CN106761520B CN106761520B CN201611144032.4A CN201611144032A CN106761520B CN 106761520 B CN106761520 B CN 106761520B CN 201611144032 A CN201611144032 A CN 201611144032A CN 106761520 B CN106761520 B CN 106761520B
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- milling
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- sleeve
- torque transmission
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000003801 milling Methods 0.000 claims abstract description 71
- 230000005540 biological transmission Effects 0.000 claims abstract description 27
- 241000251468 Actinopterygii Species 0.000 claims description 13
- 230000007246 mechanism Effects 0.000 abstract description 9
- 230000008569 process Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
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
- E21B31/18—Grappling tools, e.g. tongs or grabs gripping externally, e.g. overshot
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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- 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)
- Surgical Instruments (AREA)
Abstract
The invention relates to a mechanical sleeve and drag integrated tool and a use method thereof. The milling device comprises a milling outer cylinder and a fishing tool arranged in the milling outer cylinder, wherein an upper joint, a milling sleeve I, a milling sleeve II, a milling sleeve III and a milling head are sequentially connected to form the milling outer cylinder; the fishing tool is sequentially connected with the torque transmission cylinder and the message cylinder, the upper joint is connected with the throttle pressing rod, and a spring is arranged between the throttle pressing rod and the torque transmission cylinder; a locking mechanism is arranged outside the message cylinder; a torque transmission key and a locking ball mechanism are arranged between the torque transmission cylinder and the milling sleeve II, a ball release cylinder is arranged in the annular space of the fishing tool and the milling sleeve III, and a lower locking mechanism is arranged between the milling sleeve III and the milling sleeve head. The tool solves the problem that the fishing tool is damaged in the milling process, and overcomes the problem that the fishing tool possibly cannot be in a fishing position or is not tightly sealed because the fishing tool is not required to be thrown down.
Description
Technical Field
The invention relates to a downhole well repair tool in oilfield development, in particular to a mechanical casing and fishing integrated tool and a use method thereof.
Background
The sand blocking and cement blocking of the pipe column are common underground accidents in the middle and later stages of oil field development, and the traditional method for treating the underground accidents is as follows: the method is reliable but not efficient. The existing sleeve-fishing integrated tools integrate the two processes, and the common practice is to machine a double-thread joint at the rear end of a sleeve-milled pipe, connect a male cone, a female cone or a fishing anchor with small threads, and mill a large-thread connecting sleeve. In the process of milling, when the fishing tool is contacted with the top of the sleeved and milled fish, the fishing tool can be damaged by further milling, the fishing thread can be damaged by the male cone and the female cone, and the fishing spear can be damaged by the fishing spear, so that the application of the process is limited to a great extent.
The Zhang Chengjiang design controllable milling and salvaging integrated tool for Jiangsu oilfield has the principle that a conventional salvaging tool is improved and then is arranged in a milling sleeve, and the working state of the underground integrated tool is changed by using the principle of a hydraulic driving piston and by throwing balls on the ground to press. When the tool is used in a horizontal well, the steel ball may not be in place or blocked by sundries such as sand or the like or the sealing is invalid due to the difficulty in flushing the horizontal well, and the tool cannot work normally.
Disclosure of Invention
In order to solve the problems, the invention provides a mechanical sleeve-fishing integrated tool, which solves the problem that a fishing tool is damaged in the sleeve-milling process, and overcomes the problem that the fishing tool may not be in a fishing position or is not tightly sealed because the fishing tool is not required to be thrown down.
The invention adopts the following technical scheme:
a mechanical sleeve-fishing integrated tool comprises a sleeve-milling outer cylinder and a fishing tool arranged in the sleeve-milling outer cylinder, wherein an upper joint, a sleeve-milling cylinder I, a sleeve-milling cylinder II, a sleeve-milling cylinder III and a sleeve-milling head are sequentially connected to form a sleeve-milling outer cylinder; the fishing tool is sequentially connected with the torque transmission cylinder and the message cylinder, the upper joint is connected with the throttle pressing rod, and a spring is arranged between the throttle pressing rod and the torque transmission cylinder; an upper locking thread is arranged outside the message cylinder, and an upper locking ring is correspondingly arranged in an annular groove on the inner wall between the milling sleeve I and the milling sleeve II; the outer wall of the torque transmission cylinder is provided with a torque transmission key, and a torque transmission groove is correspondingly arranged on the inner wall of the milling cylinder II; the periphery of the torque transmission barrel is provided with a locking ball groove, a locking ball is placed in an annular space between the locking ball groove and the milling sleeve II, a ball release groove is formed in the inner wall of the milling sleeve II above the locking ball, a ball release barrel is arranged in an annular space between the fishing tool and the milling sleeve III below the locking ball, a lower locking ring is arranged in an annular space of the inner wall between the milling sleeve III and the milling sleeve, and a lower locking thread is correspondingly arranged on the outer wall of the ball release barrel.
The application method of the mechanical sleeving and fishing integrated tool comprises the following steps:
a. the mechanical sleeve-fishing integrated tool is connected to the lower end of the fishing pipe column, and is sent to the upper part of the fish roof, and a pump is started to wash the well;
b. setting down a fishing and setting pipe column to perform pressurizing milling;
c. after the ground pump pressure suddenly rises, lifting the salvage pipe column by more than 1 m;
d. and lowering the fishing pipe column to fish the fish roof again and fishing the junk.
Compared with the prior art, the invention has the beneficial effects that:
due to the adoption of the locking ball locking mechanism, the fishing tool is kept at a high position in the milling sleeve, and the fishing tool cannot be contacted with the fish roof in the milling process, so that the damage of the fish roof to the fishing tool cannot be generated. When the ball release cylinder pushes the lock ball upwards to enter the ball release groove, the lock ball is released, the fishing tool moves downwards to enter a fishing state under the pushing of the spring, and the upper locking mechanism formed by the upper locking ring and the upper locking thread ensures that the fishing tool cannot retreat, so that the pressurizing load required by the fishing operation is provided, and the problem that the fishing tool is possibly not in place is solved.
Drawings
The invention has been briefly described above and is further described in detail below with reference to the drawings that depict the following specific embodiments of the invention. These drawings depict only typical embodiments of the invention and are not therefore to be considered to limit the scope of the invention. In these drawings:
fig. 1 is a schematic structural view of a mechanical casing and fishing integrated tool according to the present invention.
FIG. 2 is a schematic structural view of a throttle lever.
Fig. 3 is an enlarged view of fig. 1B.
Fig. 4 is a cross-sectional view A-A of fig. 1.
Fig. 5 is a schematic structural view of the mechanical casing and fishing integrated tool according to the present invention, in which the fishing tool enters the fishing position after descending.
Fig. 6 is an enlarged view at C in fig. 1.
Fig. 7 is an enlarged view at D in fig. 1.
Detailed Description
1-4, 6 and 7, the mechanical sleeve-fishing integrated tool comprises a sleeve-milling outer cylinder and a fishing tool 14 arranged in the sleeve-milling outer cylinder, wherein an upper joint 1, a sleeve-milling cylinder I4, a sleeve-milling cylinder II 11, a sleeve-milling cylinder III 15 and a sleeve-milling head 19 are sequentially connected to form the sleeve-milling outer cylinder; the fishing tool 14 is sequentially connected with the torque transmission cylinder 10 and the message cylinder 3, the upper joint 1 is connected with the throttle compression rod 2, and the spring 6 is arranged between the throttle compression rod 2 and the torque transmission cylinder 10; an upper locking thread 5 is arranged outside the message cylinder 3, and an upper locking ring 7 is correspondingly arranged in an inner wall ring groove between the first milling cylinder 4 and the second milling cylinder 11; the outer wall of the torque transmission cylinder 10 is provided with a torque transmission key 9, and a torque transmission groove 8 is correspondingly arranged on the inner wall of the milling cylinder II 11; the periphery of the torque transmission barrel 10 is provided with a lock ball groove 31, a lock ball 13 is arranged in an annular space between the lock ball groove 31 and the milling barrel II 11, a ball release groove 12 is arranged on the inner wall of the milling barrel II 11 above the lock ball 13, a ball release barrel 16 is arranged in an annular space between the fishing tool 14 and the milling barrel III 15 below the lock ball 13, a lower locking ring 18 is arranged in an annular space on the inner wall between the milling barrel III 15 and the milling head 19, and a lower locking thread 17 is correspondingly arranged on the outer wall of the ball release barrel 16.
The upper lock ring 7 and the upper lock thread 5 together form an upper lock mechanism, and the lower lock ring 18 and the lower lock thread 17 together form a lower lock mechanism, both of which are known in the art and are commonly used in downhole hydraulic packers.
The fishing tool 14 may be selected from a male cone, a female cone, a fishing spear, or a fishing barrel depending on the purpose or need of the fishing operation.
The length of the milling head 19 is adjusted according to the working requirements.
In order to facilitate the field operation, when the lock ball 13 is released, the field operator can judge and observe in time, and a pressure indicating mechanism is arranged. The pressure indicating mechanism consists of an upper joint 1, a throttling compression bar 2 and a message cylinder 3. As shown in fig. 2, the throttle pressing rod 2 is provided with an upper disc 21, a middle disc 22 and a lower disc 23, the upper disc 21 and the lower disc 23 are respectively provided with an axial hole, and an annular gap is formed between the middle disc 22 and the upper joint 1 to allow circulating liquid to freely pass through. When the message cylinder 3 ascends to the annular gap and blocks the annular gap, a circulation channel of liquid is cut off, and the phenomenon that the pressure rapidly rises and the ground pump pressure suddenly rises occurs in the milling pipe column.
The annular space between the middle disc 22 and the upper joint 1 is 0.1 mm-2 mm larger than the wall thickness of the message cylinder 3, or the annular space between the middle disc 22 and the upper joint 1 is smaller than the wall thickness of the message cylinder 3, so that the purpose of pressure jump indication can be achieved.
As shown in fig. 4, the torque transmission grooves 8 and the torque transmission keys 9 may be two and symmetrically arranged, or may be other numbers, such as 1, 3 or 4, which may be determined according to the strength.
The application method of the mechanical sleeving and fishing integrated tool comprises the following steps:
a. the mechanical sleeve-fishing integrated tool is connected to the lower end of the fishing pipe column, and is sent to the upper part of the fish roof, and a pump is started to wash the well;
b. setting down a fishing and setting pipe column to perform pressurizing milling;
c. after the ground pump pressure suddenly rises, lifting the salvage pipe column by more than 1 m;
d. and lowering the fishing pipe column to fish the fish roof again and fishing the junk.
In step b, as shown in fig. 5, in the process of pressurizing and milling, the top of the fish 51 reaches the lower end of the ball release barrel 16, the ball release barrel is pushed to move upwards, the lock ball 13 is pushed upwards by the ball release barrel to move upwards, the lock ball 13 drives the torque transmission barrel 10 and the fishing tool 14 to move upwards simultaneously and compress the spring 6, and when the lock ball 13 reaches the ball release groove 12, the lock ball 13 moves outwards in a radial direction, and the lock ball groove 31 loses constraint. After lifting the fishing pipe column, the fishing tool 14 descends to extend out of the ball release cylinder 16 to enter a fishing position under the action of gravity and a spring, and meanwhile, the upper locking ring 7 is meshed with the upper locking thread 5 to prevent the fishing tool from retreating.
The embodiments described herein are merely exemplary embodiments and are not limited to these embodiments, and those skilled in the art can make modifications without departing from the spirit and scope of the invention. Many variations, combinations and modifications of the arrangements disclosed herein are possible and are within the scope of the invention, and therefore the scope of protection is not limited to the description set out above, but is defined in accordance with the claims, the scope of protection including all equivalents of the subject matter of the claims.
Claims (6)
1. A mechanical sleeve-fishing integrated tool comprises a sleeve-milling outer cylinder and a fishing tool arranged in the sleeve-milling outer cylinder, wherein an upper joint (1), a sleeve-milling cylinder I (4), a sleeve-milling cylinder II (11), a sleeve-milling cylinder III (15) and a sleeve-milling head (19) are sequentially connected to form a sleeve-milling outer cylinder; the device is characterized in that the upper end of a fishing tool (14) is sequentially connected with a torque transmission cylinder (10) and a message cylinder (3), a throttle pressing rod (2) is connected in an upper joint (1), and a spring (6) is arranged between the throttle pressing rod (2) and the torque transmission cylinder (10); an upper locking thread (5) is arranged outside the message cylinder (3), and an upper locking ring (7) is correspondingly arranged in an inner wall ring groove between the first milling cylinder (4) and the second milling cylinder (11); the outer wall of the torque transmission cylinder (10) is provided with a torque transmission key (9), and a torque transmission groove (8) is correspondingly arranged on the inner wall of the milling cylinder II (11); the periphery of the torque transmission barrel (10) is provided with a locking ball groove (31), a locking ball (13) is arranged in an annular space between the locking ball groove (31) and the milling barrel II (11), a ball release groove (12) is arranged on the inner wall of the milling barrel II (11) above the locking ball (13), a ball release barrel (16) is arranged in an annular space between a fishing tool (14) and the milling barrel III (15) below the locking ball (13), a lower locking ring (18) is arranged in an annular space of the inner wall between the milling barrel III (15) and the milling head (19), and a lower locking thread (17) is correspondingly arranged on the outer wall of the ball release barrel (16).
2. The mechanical integrated tool for casing and fishing according to claim 1, wherein the fishing tool (14) is a male cone, a female cone, a fishing spear or a fishing barrel.
3. The mechanical sleeve and drag integrated tool according to claim 1, wherein the throttle pressing rod (2) is provided with an upper disc (21), a middle disc (22) and a lower disc (23), the upper disc (21) and the lower disc (23) are respectively provided with axial holes, and the annular space between the middle disc (22) and the upper joint (1) is larger than the wall thickness of the message cylinder (3) by 0.1-2 mm.
4. The mechanical casing and fishing integrated tool according to claim 1, wherein the throttle pressing rod (2) is provided with an upper disc (21), a middle disc (22) and a lower disc (23), the upper disc (21) and the lower disc (23) are respectively provided with axial holes, and the annular space between the middle disc (22) and the upper joint (1) is smaller than the wall thickness of the message cylinder (3).
5. The mechanical sleeve and drag integrated tool according to claim 1, wherein the torque transmission groove (8) and the torque transmission key (9) are symmetrically arranged.
6. The application method of the mechanical sleeve-fishing integrated tool as claimed in any one of claims 1 to 5 comprises the following steps: a. the mechanical sleeve-fishing integrated tool is connected to the lower end of the fishing pipe column, and is sent to the upper part of the fish roof, and a pump is started to wash the well; b. setting down a fishing and setting pipe column to perform pressurizing milling; c. after the ground pump pressure suddenly rises, lifting the salvage pipe column by more than 1 m; d. and lowering the fishing pipe column to fish the fish roof again and fishing the junk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611144032.4A CN106761520B (en) | 2016-12-13 | 2016-12-13 | Mechanical sleeving and fishing integrated tool and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611144032.4A CN106761520B (en) | 2016-12-13 | 2016-12-13 | Mechanical sleeving and fishing integrated tool and using method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106761520A CN106761520A (en) | 2017-05-31 |
| CN106761520B true CN106761520B (en) | 2023-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611144032.4A Active CN106761520B (en) | 2016-12-13 | 2016-12-13 | Mechanical sleeving and fishing integrated tool and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106761520B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201090165Y (en) * | 2007-08-27 | 2008-07-23 | 华北石油管理局钻井工艺研究院 | Drilling bridging plug milling salvaging tool |
| CN105888554A (en) * | 2016-05-23 | 2016-08-24 | 宝鸡市远深石油设备新技术有限公司 | Hydraulic push-return impact oscillator |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8526360D0 (en) * | 1985-10-25 | 1985-11-27 | Ownhaven Ltd | Well tool |
| CN201024948Y (en) * | 2007-02-09 | 2008-02-20 | 中国石油化工股份有限公司中原油田分公司采油工程技术研究院 | Milling and dragging canister for drilling bridge plug cover |
| CN201013287Y (en) * | 2007-03-01 | 2008-01-30 | 华北石油管理局 | Retrievable fishing barrel for reclaiming bridging plug |
| US8365826B2 (en) * | 2009-08-06 | 2013-02-05 | Tiw Corporation | Hydraulically powered fishing tool and method |
| 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 |
| CN103821472B (en) * | 2012-11-16 | 2016-08-03 | 中国石油天然气股份有限公司 | Fishing bottom plug and fishing tool for expansion pipe |
| CN103967439A (en) * | 2014-04-28 | 2014-08-06 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Continuous milling and salvage integrated tool and milling and salvage method thereof |
| CN205243464U (en) * | 2015-12-25 | 2016-05-18 | 贵州高峰石油机械股份有限公司 | Two release sliding sleeve formula slip sockets |
| CN105422035A (en) * | 2015-12-25 | 2016-03-23 | 贵州高峰石油机械股份有限公司 | Double-release sliding sleeve type bowl slip-socket and underground falling-object catching method |
| CN206360672U (en) * | 2016-12-13 | 2017-07-28 | 中国石油化工股份有限公司 | Mechanical set drags for integrated tool |
-
2016
- 2016-12-13 CN CN201611144032.4A patent/CN106761520B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201090165Y (en) * | 2007-08-27 | 2008-07-23 | 华北石油管理局钻井工艺研究院 | Drilling bridging plug milling salvaging tool |
| CN105888554A (en) * | 2016-05-23 | 2016-08-24 | 宝鸡市远深石油设备新技术有限公司 | Hydraulic push-return impact oscillator |
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| Publication number | Publication date |
|---|---|
| CN106761520A (en) | 2017-05-31 |
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