CN102434099A - Integrated device of multilateral well whipstock and hollow whipstock - Google Patents
Integrated device of multilateral well whipstock and hollow whipstock Download PDFInfo
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- CN102434099A CN102434099A CN2011103632404A CN201110363240A CN102434099A CN 102434099 A CN102434099 A CN 102434099A CN 2011103632404 A CN2011103632404 A CN 2011103632404A CN 201110363240 A CN201110363240 A CN 201110363240A CN 102434099 A CN102434099 A CN 102434099A
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- whipstock
- hollow
- deflecting
- bar
- pin
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- 238000005553 drilling Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
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Abstract
The invention relates to the technical field of a branch well, in particular to an integrated device of a whipstock and a hollow whipstock of the branch well. The lower end of a guide outer sleeve of the device is provided with a lower guide outer sleeve screw thread, a deflecting inner sleeve is arranged in the guide outer sleeve and is connected through a fishing pin, the lower end of a feeding rod is arranged in the deflecting inner sleeve and is connected through a feeding pin, and the upper end of the feeding rod is provided with an upper feeding rod screw thread. The invention simplifies the replacement process of the windowing whipstock and the hollow whipstock of the branch well, completes the process once drilling and reduces the construction difficulty. The defects that the whipstock is difficult to salvage and the size of the hollow whipstock is not matched with a window in the prior art are overcome.
Description
Technical field:
The present invention relates to a kind of Multilateral Wells technical field, particularly a kind of Multilateral Wells whipstock and hollow wedge deflection tool integrated apparatus.
Background technology:
When realization required the main borehole latus rectum, the main technique of employing was for salvaging the whipstock of windowing, being lowered to hollow wedge deflection tool.Need adjust according to the abrasion condition of the whipstock of windowing the size of hollow wedge deflection tool in this course, construction is uncertain big, normal occur can't matched well with window situation; In addition, the window salvaging of whipstock of Multilateral Wells was exactly technological difficulties originally, and particularly in deep-well, hard formation, it is excessive to salvage tonnage, and accident takes place frequently.
Summary of the invention:
The technical problem that the present invention will solve provides a kind of Multilateral Wells whipstock and hollow wedge deflection tool integrated apparatus, and this device has been realized simplification Multilateral Wells window whipstock and hollow wedge deflection tool replacement technology, this technology is bored for one time accomplish, and reduces difficulty of construction.Overcome existing technology and size and the unmatched deficiency of window that whipstock is salvaged difficulty, hollow wedge deflection tool often occurred.
The technical scheme that the present invention taked is: a kind of Multilateral Wells whipstock and hollow wedge deflection tool integrated apparatus comprise guiding overcoat, the interior cover of deflecting and send into bar; Guiding overcoat lower end is designed with screw thread under the guiding overcoat, being sleeved in the deflecting in the guiding overcoat and through salvaging pin to connect, and sends into the bar lower end and is contained in the deflecting and connects in the cover and through sending into pin, sends into the bar upper end and is designed with and sends into screw thread on the bar.
The invention has the beneficial effects as follows: the present invention is sleeved in the deflecting in the guiding overcoat also through salvaging pin ways of connecting owing to having adopted; Thereby have and simplify the window function of whipstock and hollow wedge deflection tool replacement technology of Multilateral Wells; This technology is bored for one time accomplish, reduce difficulty of construction.In addition, the present invention has simple in structure, is easy to process and the advantage of stable performance when using.
Description of drawings:
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further detailed explanation.
Accompanying drawing is a structural representation of the present invention.
The specific embodiment:
Shown in accompanying drawing, a kind of Multilateral Wells whipstock and hollow wedge deflection tool integrated apparatus comprise guiding overcoat 1, the interior cover 4 of deflecting and send into bar 6; Guiding overcoat 1 lower end is designed with screw thread 2 under the guiding overcoat, and cover 4 is contained in the guiding overcoat 1 and through salvaging pin 3 and connects in the deflecting, sends into bar 6 lower ends and is contained in the deflecting and connects in the cover 4 and through sending into pin 5, sends into bar 6 upper ends and is designed with and sends into screw thread 7 on the bar.
In Multilateral Wells construction operation process, in being lowered to the pipe string of the whipstock of windowing, substituting the whipstock of windowing with the present invention and connect, promptly connect screw thread 2 under the guiding overcoat and following square tube polyphone; Screw thread 7 is connected with the drilling rod of sending on top on the bar through sending into to send into bar 6.Be lowered to the precalculated position, press down and send into the certain tonnage of drilling tool, when tonnage surpasses the specified shearing force of sending into pin 5; Sending into pin 5 cuts off; Send into bar 6 and trip out with sending into drilling tool, remainder is stayed the down-hole, is used for the drilling tool guiding work that casing sidetracking and branch well hole creep into.
After the branch well hole work of creeping into is accomplished, in the time of need whipstock being changed to hollow wedge deflection tool, drag for cover 4 in the deflecting with special-purpose fishing tool; On carry and salvage drilling tool to certain tonnage; When tonnage surpasses the specified shearing force of salvaging pin 3, to salvage pin 3 and cut off, cover 4 is salvaged in well in the deflecting; And directly stay guiding overcoat 1 in the well, play the branch well hole guide effect of hollow wedge deflection tool.
It is understandable that; More than about specific descriptions of the present invention; Only be used to the present invention is described and be not to be subject to the described technical scheme of the embodiment of the invention; Those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the present invention, to reach identical technique effect; As long as satisfy the use needs, all within protection scope of the present invention.
Claims (1)
1. a Multilateral Wells whipstock and hollow wedge deflection tool integrated apparatus comprise in guiding overcoat (1), the deflecting and overlap (4) and send into bar (6); It is characterized in that: guiding overcoat (1) lower end is designed with screw thread (2) under the guiding overcoat; Cover (4) is contained in the guiding overcoat (1) and through salvaging pin (3) and connects in the deflecting; Send into bar (6) lower end and be contained in the deflecting and connect in the cover (4) and through sending into pin (5), send into to be designed with on the bar (6) and send into screw thread on the bar (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103632404A CN102434099A (en) | 2011-11-16 | 2011-11-16 | Integrated device of multilateral well whipstock and hollow whipstock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103632404A CN102434099A (en) | 2011-11-16 | 2011-11-16 | Integrated device of multilateral well whipstock and hollow whipstock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102434099A true CN102434099A (en) | 2012-05-02 |
Family
ID=45982424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103632404A Pending CN102434099A (en) | 2011-11-16 | 2011-11-16 | Integrated device of multilateral well whipstock and hollow whipstock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102434099A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100546A (en) * | 2017-07-06 | 2017-08-29 | 贵州省地质矿产勘查开发局111地质大队 | Slope guiding device directly connected with sleeve |
| CN108397137A (en) * | 2018-03-01 | 2018-08-14 | 中国海洋石油集团有限公司 | A kind of deflecting tool and its manufacturing method |
| CN111946265A (en) * | 2020-08-21 | 2020-11-17 | 中海石油(中国)有限公司 | Hollow whipstock capable of being connected back |
| CN113374413A (en) * | 2021-06-04 | 2021-09-10 | 广州海洋地质调查局 | Multilateral well branching mechanism for sea natural gas hydrate drilling and production and well building method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5325924A (en) * | 1992-08-07 | 1994-07-05 | Baker Hughes Incorporated | Method and apparatus for locating and re-entering one or more horizontal wells using mandrel means |
| CN1644869A (en) * | 2005-02-01 | 2005-07-27 | 中国石化集团胜利石油管理局钻井工艺研究院 | Completion device and method for branch well with pre-windows |
| CN201908572U (en) * | 2010-12-17 | 2011-07-27 | 中国石油集团长城钻探工程有限公司 | Modular combined whipstock |
-
2011
- 2011-11-16 CN CN2011103632404A patent/CN102434099A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5325924A (en) * | 1992-08-07 | 1994-07-05 | Baker Hughes Incorporated | Method and apparatus for locating and re-entering one or more horizontal wells using mandrel means |
| CN1644869A (en) * | 2005-02-01 | 2005-07-27 | 中国石化集团胜利石油管理局钻井工艺研究院 | Completion device and method for branch well with pre-windows |
| CN201908572U (en) * | 2010-12-17 | 2011-07-27 | 中国石油集团长城钻探工程有限公司 | Modular combined whipstock |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100546A (en) * | 2017-07-06 | 2017-08-29 | 贵州省地质矿产勘查开发局111地质大队 | Slope guiding device directly connected with sleeve |
| CN108397137A (en) * | 2018-03-01 | 2018-08-14 | 中国海洋石油集团有限公司 | A kind of deflecting tool and its manufacturing method |
| CN111946265A (en) * | 2020-08-21 | 2020-11-17 | 中海石油(中国)有限公司 | Hollow whipstock capable of being connected back |
| CN111946265B (en) * | 2020-08-21 | 2022-05-17 | 中海石油(中国)有限公司 | Hollow whipstock capable of being connected back |
| CN113374413A (en) * | 2021-06-04 | 2021-09-10 | 广州海洋地质调查局 | Multilateral well branching mechanism for sea natural gas hydrate drilling and production and well building method |
| CN113374413B (en) * | 2021-06-04 | 2024-05-31 | 广州海洋地质调查局 | Multi-branch well branch mechanism for sea area natural gas hydrate drilling and well construction method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120502 |