CN203531816U - Expansion construction tool for solid expandable pipe - Google Patents

Expansion construction tool for solid expandable pipe Download PDF

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Publication number
CN203531816U
CN203531816U CN201320555404.8U CN201320555404U CN203531816U CN 203531816 U CN203531816 U CN 203531816U CN 201320555404 U CN201320555404 U CN 201320555404U CN 203531816 U CN203531816 U CN 203531816U
Authority
CN
China
Prior art keywords
expansion
expansion gear
block
pusher
solid expandable
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
CN201320555404.8U
Other languages
Chinese (zh)
Inventor
白强
刘强
李德君
宋生印
冯耀荣
贾鹏军
佘伟军
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.)
Xi`an Sanhuan Science & Technology Development Corp
Original Assignee
Xi`an Sanhuan Science & Technology Development Corp
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 Xi`an Sanhuan Science & Technology Development Corp filed Critical Xi`an Sanhuan Science & Technology Development Corp
Priority to CN201320555404.8U priority Critical patent/CN203531816U/en
Application granted granted Critical
Publication of CN203531816U publication Critical patent/CN203531816U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to an expansion construction tool for a solid expandable pipe. The expansion construction tool comprises the solid expandable pipe, a movable expandable device, an expandable device pusher and a bottom plugging device. The expandable device pusher is arranged on the lower portion of the movable expandable device, the bottom plugging device is arranged in the expandable device pusher, a center fluid flow passage and side direction fluid flow passages are formed in the bottom plugging device, and a bottom plugging ball is arranged at the bottom of the bottom plugging device. According to the expansion construction tool, the blocking problems in the tripping-in or expansion process of the solid expandable pipe are solved, and meanwhile repeated use of a bottom plug of the solid expandable pipe can be achieved. The safety and reliability of the construction operation of the expandable pipe are improved, meanwhile, cost can be effectively reduced, the success rate of the construction operation is improved, and the wide application prospect is achieved.

Description

A kind of solid expandable tubular expansion construction tool
Technical field
The utility model relates to industrial gas oil cover and damages subsidy and completion field, particularly stifled solid expandable tubular expansion construction tool at the bottom of a kind of reducing, detachable emission cavity.
Background technology
Solid expansion pipe SET (Solid Expandable Tubular) technology is exactly under expandable sleeve, under Oil/gas Well, after precalculated position, to utilize hydraulic-driven power or mechanical force promote or pull expansion cone to make casing string be expanded radially into a kind of drilling well, completion and the well workover new technology of desired diameter dimension.This technology has been successfully applied to drilling well, completion, well workover and oil recovery technique field at present, has developed into effective new technique that solves complex formation situation in oil, gas well drilling process.
The expansion tube construction tool of current domestic use, cone is mostly monolithic construction, cannot realize reducing and expand, make expansion tube be lowered to or expansion process in the risk that is easily hampered; Simultaneously monolithic construction cannot realize single diameter expansion, cannot reach expansion tube shutoff bore hole stratum and the object of not losing borehole size.In addition, at present both at home and abroad in expansion tube construction operation process, for processing method stifled at the bottom of expansion tube, mostly adopt the mode of falling of directly boring, therefore block up and cannot recycle at the end, and this processing mode has caused certain waste, has also increased construction working amount simultaneously.
Utility model content
The purpose of this utility model is to provide a kind of reducing, the stifled removable solid expandable tubular expansion construction tool in the end.Can overcome the deficiency of above-mentioned prior art, can reduce that expansion tube is lowered to or the risk that is hampered of expansion process, and, stifledly at the bottom of detachable expansion tube can realize recycling.
Technical solution of the present utility model is as follows: a kind of solid expandable tubular expansion construction tool, comprise solid expandable tubular (3), movable expansion gear (4), expansion gear pusher (5), end block apparatus (7), in solid expandable tubular (3), be provided with movable expansion gear (4), movable expansion gear (4) is connected with oil pipe note or drilling rod (1) by screw thread, movable expansion gear (4) bottom is provided with expansion gear pusher (5), in expansion gear pusher (5), be provided with end block apparatus (7), end block apparatus (7) is provided with central fluid channel (11) and lateral fluid port (12), end block apparatus (7) bottom is provided with the stifled ball (9) in the end, solid expandable tubular (3) bottom is provided with float shoe (8), end block apparatus (7) is embedded on float shoe (8) by conical contact face, between the two, be provided with sealing ring.
Movable expansion gear (4) is provided with wedge-shaped bead, and expansion gear pusher (5) is arranged in wedge-shaped bead.
Expansion gear pusher (5) and end block apparatus (7) are provided with flange, and expansion gear pusher (5) flange is arranged on end block apparatus (7) flange.
The utility model has solved that solid expandable tubular is lowered to or the problem that is hampered of expansion process, can realize stifled recycling at the bottom of expansion tube simultaneously.Improved the security reliability of expansion tube construction operation, can effectively reduce cost, improved the success rate of construction operation, had broad application prospects simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the utility model expansion operation structure schematic diagram.
In figure:
1-oil pipe note or drilling rod; 2-caulking gum; 3-solid expandable tubular; The movable expansion gear of 4-; 5-expansion gear pusher; 6-hydraulic cavities; Block apparatus at the bottom of 7-; 8-float shoe; Stifled ball at the bottom of 9-; The movable expanding block linking springs of 10-; 11-central fluid channel; Block apparatus fluid side passage at the bottom of 12-.
The specific embodiment
Now by reference to the accompanying drawings the utility model is further described.
Described solid expandable tubular expansion construction tool is noted by oil pipe or drilling rod 1 is sent into underground work, movable expansion gear 4 is connected with oil pipe note or drilling rod 1 by screw thread, movable expansion gear 4 connects expanding block by spring 10 and controls its radial contraction, and there is wedge-shaped bead movable expansion gear 4 lower ends, on movable expansion gear 4 lower wedge flanges, be provided with expansion gear pusher 5, the disposed inboard of expansion gear pusher 5 has flange, on end block apparatus 7, be furnished with central fluid channel 11 and lateral fluid port 12, above the top of end block apparatus 7 and lateral fluid port 12, be furnished with flange, expansion gear pusher 5 flange sleeves are on end block apparatus 7 flanges, block apparatus 7 bottoms in the end are provided with the stifled ball 9 in the end, taper surface is arranged at the bottom of end block apparatus 7, solid expandable tubular 3 bottoms are provided with float shoe 8, end block apparatus 7 is embedded on float shoe 8 by taper surface, between end block apparatus 7 and float shoe 8, by sealing ring, seal, float shoe 8 is threaded connection the bottom at solid expandable tubular 3, in solid expandable tubular 3, be provided with movable expansion gear 4, in the upper end of solid expandable tubular 3, there is caulking gum 2.
In construction operation, above-mentioned expansion construction tool is lowered into after well, if carry out completion practice, first need to return cement by central fluid channel 11, after returning cement and completing or at cover, damage in subsidy operation, directly the stifled ball in the end is dropped in end block apparatus 7, downward pathway closure now, fluid enters both sides by lateral fluid port 12, between end block apparatus 7 and expansion gear pusher 5, form hydraulic cavities, by continuous pressurization, expansion gear pusher 5 moves up movable expansion gear 4 is strutted, now expansion gear pusher 5 and movable expansion gear 4 form expansion cone jointly, expansion cone contacts with the inwall of solid expandable tubular 3, under the effect of radial pressure, make solid expandable tubular 3 that plastic strain radially occurs, while occurring that obstacle or abnormal conditions are obstructed in expanding, by pressure release, can make expansion gear pusher 5 move down, and then movable expansion gear 4 radially bounces back, stuck phenomenon can not occur.The upper end of solid expandable tubular 3 sticks together by caulking gum 2 and outer layer sleeve after expanding; After expansion has been constructed, by on carry oil pipe note or drilling rod 1 movable expansion gear 4 carried on together, movable expansion gear 4 will be carried on together with expansion gear pusher 5 by flange, the flange on expansion gear pusher 5 tops coordinates and can on end block apparatus 7 is together with internal ball 9, carry with the flange of end block apparatus 7, therefore owing to sealing by sealing ring between end block apparatus 7 and float shoe, carry on and in process, do not have excessive resistance.

Claims (3)

1. a solid expandable tubular expansion construction tool, comprise solid expandable tubular (3), movable expansion gear (4), expansion gear pusher (5), end block apparatus (7), it is characterized in that: in solid expandable tubular (3), be provided with movable expansion gear (4), movable expansion gear (4) is connected with oil pipe note or drilling rod (1) by screw thread, movable expansion gear (4) bottom is provided with expansion gear pusher (5), in expansion gear pusher (5), be provided with end block apparatus (7), end block apparatus (7) is provided with central fluid channel (11) and lateral fluid port (12), end block apparatus (7) bottom is provided with the stifled ball (9) in the end, solid expandable tubular (3) bottom is provided with float shoe (8), end block apparatus (7) is embedded on float shoe (8) by conical contact face, between the two, be provided with sealing ring.
2. a kind of solid expandable tubular expansion construction tool as claimed in claim 1, is characterized in that: movable expansion gear (4) lower end is provided with wedge-shaped bead, and expansion gear pusher (5) is arranged in wedge-shaped bead.
3. a kind of solid expandable tubular expansion construction tool as claimed in claim 1, is characterized in that: expansion gear pusher (5) and end block apparatus (7) are provided with flange, and expansion gear pusher (5) flange is arranged on end block apparatus (7) flange.
CN201320555404.8U 2013-09-06 2013-09-06 Expansion construction tool for solid expandable pipe Expired - Fee Related CN203531816U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320555404.8U CN203531816U (en) 2013-09-06 2013-09-06 Expansion construction tool for solid expandable pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320555404.8U CN203531816U (en) 2013-09-06 2013-09-06 Expansion construction tool for solid expandable pipe

Publications (1)

Publication Number Publication Date
CN203531816U true CN203531816U (en) 2014-04-09

Family

ID=50418038

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320555404.8U Expired - Fee Related CN203531816U (en) 2013-09-06 2013-09-06 Expansion construction tool for solid expandable pipe

Country Status (1)

Country Link
CN (1) CN203531816U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108119068A (en) * 2016-12-14 2018-06-05 中国石油天然气股份有限公司 For preventing the construction method and process pipe string of casing damage
CN109630051A (en) * 2018-03-12 2019-04-16 刘屹凡 A kind of petroleum casing pipe chemical method prosthetic device
CN109681142A (en) * 2018-12-13 2019-04-26 大港油田集团有限责任公司 A kind of naked eye expansion device and application method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108119068A (en) * 2016-12-14 2018-06-05 中国石油天然气股份有限公司 For preventing the construction method and process pipe string of casing damage
CN108119068B (en) * 2016-12-14 2020-02-14 中国石油天然气股份有限公司 Construction method and process pipe column for preventing casing damage
CN109630051A (en) * 2018-03-12 2019-04-16 刘屹凡 A kind of petroleum casing pipe chemical method prosthetic device
CN109681142A (en) * 2018-12-13 2019-04-26 大港油田集团有限责任公司 A kind of naked eye expansion device and application method

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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
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140409

Termination date: 20180906