CN2679348Y - Integrated tool for milling window in casing for side track drilling - Google Patents

Integrated tool for milling window in casing for side track drilling Download PDF

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Publication number
CN2679348Y
CN2679348Y CN 200420030616 CN200420030616U CN2679348Y CN 2679348 Y CN2679348 Y CN 2679348Y CN 200420030616 CN200420030616 CN 200420030616 CN 200420030616 U CN200420030616 U CN 200420030616U CN 2679348 Y CN2679348 Y CN 2679348Y
Authority
CN
China
Prior art keywords
whipstock
milling
utility
model
piston
Prior art date
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.)
Expired - Fee Related
Application number
CN 200420030616
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Chinese (zh)
Inventor
李永和
靳树忠
乔忠明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Liaohe Petroleum Exploration Bureau
Original Assignee
Liaohe Petroleum Exploration Bureau
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Liaohe Petroleum Exploration Bureau filed Critical Liaohe Petroleum Exploration Bureau
Priority to CN 200420030616 priority Critical patent/CN2679348Y/en
Application granted granted Critical
Publication of CN2679348Y publication Critical patent/CN2679348Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to an integrated tool for milling windows in a casing for side track drilling used in the oilfield side track drilling construction. The utility model is composed of a multiple function milling tap 1, male pins 2, a communication pipe 3, a multiple folding face whipstock 4, and a rubber tube 18. The tool integrates the multiple function milling tap 1, the multiple folding face whipstock 4 and the integral packer 18 into a whole and the operating procedure is simple. The users can realize the completion of wellbore seal, whipstock seat seal and the work of opening and overhauling windows with the tool. The construction period can be shortened, the cost can be reduced, the window full width proportion can be enlarged and the accident potential danger can be decreased with the tool. The utility model can meet the demand of carrying out all sorts of casing side track drilling construction by making use of the old wells in the middle and later stages of the oil field development, so the utility model has broad application.

Description

Sidetracked hole integral type casing sidetracking instrument
Technical field:
The utility model relates to a kind of downhole tool that is used for the construction of oil sidetracked hole.
Background technology:
Along with oil field development enters the middle and later periods, the sidetracked hole construction that utilizes former well bore casing to carry out is increasing.But the on-the-spot at present conventional formula casing sidetracking instrument that uses exists problem and shortage such as construction is loaded down with trivial details, window is irregular, accident potential is many, affects casing window sidetracking well The Application of Technology and popularization.In fact some improvement that carry out this in domestic and international in recent years oil field do not realize the integrated work of windowing truly.
Summary of the invention:
The purpose of this utility model is to provide a kind of and integrates multi-functional and mill awl, many foldings face whipstock, integral type packer, can make the sidetracked hole integral type casing sidetracking instrument that construction sequence is simplified greatly, window overall with ratio strengthens, accident potential reduces.
The utility model is to realize like this.This kind instrument of windowing is made up of multi-functional awl, communicating pipe, pin, many foldings face whipstock and the packing element of milling, the multi-functional awl lower end of milling is connected and fixed by pin and many foldings face whipstock, communicating pipe upper and lower end respectively with mill the awl be connected with shaggy block with many foldings face whipstock, the whipstock lower end is set with packing element.Wherein, many foldings face whipstock is provided with upper piston and lower piston in the chamber, and its outside is respectively equipped with upper slips and lower slips, and connects with pin respectively; Upper and lower piston inboard is provided with the locking pipe, and the upper piston top is provided with and sets tube, and locking pipe below is provided with ball seat, and the lower piston below is provided with cylinder barrel and lock sleeve.During use, with this instrument down to the downhole designs degree of depth, adjust the whipstock orientation after, drop into a φ 22mm steel ball earlier, continue turn on pump after falling to ball seat; Build the pressure to 20 ± 2MPa, cylinder barrel is started working, and the compression packing element is to the oil well casing inwall, and lock sleeve is in time locked, and realizes the two-way packing to sleeve pipe; Meanwhile, set tube and also start working, upper and lower piston promotes upper and lower slips respectively and moves outward, cuts off pin, locking in time the upper and lower slips of locking to internal surface of sleeve pipe, realize windowing the instrument slips internal surface of sleeve pipe in length and breadth to suspension; Then drop into second φ 25mm steel ball after the pressure release, fall into the ball seat in communicating pipe, after continuing turn on pump to 10 ± 2MPa, communicating pipe falls in the interior inclined-plane passage of many foldings face whipstock by downforce and deadweight, press down 100KN power, cut off pin and realize multi-functional disengaging fully of milling awl and many foldings face whipstock and integral type packer, at this moment, can open according to the casing sidetracking technology and repair the window construction.
The utility model integrates multi-functional awl, many foldings face whipstock, the integral type packer of milling, operation sequence is simple, utilize it can realize boring for one time sealing, the whipstock finished well and set and open the window work of repairing, shorten construction period, reduce cost, can strengthen window overall with ratio simultaneously, reduce accident potential, can satisfy the oil field development middle and later periods utilizes old well to carry out the requirement of various casing side tracking well constructions, applied range.
Description of drawings:
Accompanying drawing is a general structure schematic diagram of the present utility model.
The specific embodiment:
Below in conjunction with accompanying drawing enforcement of the present utility model is illustrated.
As shown in the figure, the utility model by multi-functionally mill awl 1, pin 2, communicating pipe 3, many foldings face whipstock 4, packing element 18 are formed, its structure assembled relation is as follows: multi-functional awl 1 lower end of milling is connected and fixed by pin 2 and many foldings face whipstock 4, communicating pipes 3 upper and lower end respectively with mill awl 1 and be connected with shaggy block with many foldings face whipstock 4, whipstock 4 lower ends are set with packing element 18.Wherein, many foldings face whipstock 4 is that a upper end is pencil point-shaped and is provided with pin hole, top one side is the cylinder on inclined-plane, the axis, top is provided with inclined-plane internal channel 6, be provided with successively in its chamber, below and set tube 7, upper piston 11, lower piston 12, cylinder barrel 15, lock sleeve 16, upper piston 11, lower piston 12 inboards are provided with locking sleeve 13, the outside is respectively equipped with upper slips 10 and lower slips 14, upper piston 11 and upper slips 10, be connected with pin 9 respectively between lower piston 12 and the lower slips 10, locking pipe 13 belows are provided with ball seat 17, communicating pipes 3 lower end and locking pipe 13 upper ends " O " shape sealing ring 5 is housed respectively, 8.The multi-functional awl 1 that mills adopts the existing conventional instrument.

Claims (2)

1, a kind of sidetracked hole integral type casing sidetracking instrument, form by the multi-functional awl (1), pin (2), communicating pipe (3), many foldings face whipstock (4), packing element (18) of milling, it is characterized in that, multi-functional awl (1) lower end of milling is connected and fixed by pin (2) and many foldings face whipstock (4), communicating pipe (3) upper and lower end respectively with mill awl (1) and be connected with shaggy block with many foldings face whipstock (4), whipstock (4) lower end is set with packing element (18).
2, sidetracked hole integral type casing sidetracking instrument according to claim 1, it is characterized in that, many foldings face whipstock (4) is that a upper end is pencil point-shaped and is provided with pin hole, top one side is the cylinder on inclined-plane, the axis, top is provided with inclined-plane internal channel (6), be provided with successively in its chamber, below and set tube (7), upper piston (11), lower piston (12), cylinder barrel (15), lock sleeve (16), upper piston (11), lower piston (12) inboard is provided with locking sleeve (13), the outside is respectively equipped with upper slips (10) and lower slips (14), upper piston (11) and upper slips (10), use pin (9) to be connected respectively between lower piston (12) and the lower slips (10), locking pipe (13) below is provided with ball seat (17), communicating pipe (3) lower end and locking pipe (13) upper end " O " shape sealing ring (5) is housed respectively, (8).
CN 200420030616 2004-03-01 2004-03-01 Integrated tool for milling window in casing for side track drilling Expired - Fee Related CN2679348Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200420030616 CN2679348Y (en) 2004-03-01 2004-03-01 Integrated tool for milling window in casing for side track drilling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200420030616 CN2679348Y (en) 2004-03-01 2004-03-01 Integrated tool for milling window in casing for side track drilling

Publications (1)

Publication Number Publication Date
CN2679348Y true CN2679348Y (en) 2005-02-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200420030616 Expired - Fee Related CN2679348Y (en) 2004-03-01 2004-03-01 Integrated tool for milling window in casing for side track drilling

Country Status (1)

Country Link
CN (1) CN2679348Y (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102182416A (en) * 2011-04-06 2011-09-14 中国海洋石油总公司 Multifunctional high-pressure milling cone
WO2013067756A1 (en) * 2011-11-12 2013-05-16 锦州清华机械有限公司 Integrated sidetrack drilling tool
CN103534437A (en) * 2011-05-23 2014-01-22 哈利伯顿能源服务公司 Window joint for lateral wellbore construction and method for opening same
CN105064981A (en) * 2015-07-31 2015-11-18 中国石油集团川庆钻探工程有限公司工程技术研究院 Open hole whipstock for horizontal well section sidetrack drilling
CN108104753A (en) * 2017-12-18 2018-06-01 海林新科石油耐磨工具有限责任公司 Integrated high-efficiency sidetrack drilling tool
CN109667558A (en) * 2018-12-25 2019-04-23 中国石油集团川庆钻探工程有限公司工程技术研究院 A kind of continuous pipe old street district method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102182416A (en) * 2011-04-06 2011-09-14 中国海洋石油总公司 Multifunctional high-pressure milling cone
CN103534437A (en) * 2011-05-23 2014-01-22 哈利伯顿能源服务公司 Window joint for lateral wellbore construction and method for opening same
CN103534437B (en) * 2011-05-23 2016-05-18 哈利伯顿能源服务公司 For window junction surface and the deployment method thereof of lateral borehole structure
WO2013067756A1 (en) * 2011-11-12 2013-05-16 锦州清华机械有限公司 Integrated sidetrack drilling tool
CN105064981A (en) * 2015-07-31 2015-11-18 中国石油集团川庆钻探工程有限公司工程技术研究院 Open hole whipstock for horizontal well section sidetrack drilling
CN105064981B (en) * 2015-07-31 2017-10-03 中国石油集团川庆钻探工程有限公司工程技术研究院 A kind of net horizontal section sidetracking bore hole whipstock
CN108104753A (en) * 2017-12-18 2018-06-01 海林新科石油耐磨工具有限责任公司 Integrated high-efficiency sidetrack drilling tool
CN109667558A (en) * 2018-12-25 2019-04-23 中国石油集团川庆钻探工程有限公司工程技术研究院 A kind of continuous pipe old street district method

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C19 Lapse of patent right due to non-payment of the annual fee
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