CN102733776A - Fishable tubing plug - Google Patents

Fishable tubing plug Download PDF

Info

Publication number
CN102733776A
CN102733776A CN2012102494562A CN201210249456A CN102733776A CN 102733776 A CN102733776 A CN 102733776A CN 2012102494562 A CN2012102494562 A CN 2012102494562A CN 201210249456 A CN201210249456 A CN 201210249456A CN 102733776 A CN102733776 A CN 102733776A
Authority
CN
China
Prior art keywords
core bar
main
push rod
adapter sleeve
slips
Prior art date
Application number
CN2012102494562A
Other languages
Chinese (zh)
Other versions
CN102733776B (en
Inventor
马中原
Original Assignee
马中原
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 马中原 filed Critical 马中原
Priority to CN201210249456.2A priority Critical patent/CN102733776B/en
Publication of CN102733776A publication Critical patent/CN102733776A/en
Application granted granted Critical
Publication of CN102733776B publication Critical patent/CN102733776B/en

Links

Abstract

The invention relates to a fishable tubing plug which comprises an upper joint (1), a main body (2), a slip (3), an upper spacer pad (4), an upper rubber cylinder (5), a spacer sleeve (6), a lower rubber cylinder (7), a lower spacer pad (8), a connection sleeve (9), a bottom plug (10), a fishing head (12), an ejector rod (13) and a core rod (14), wherein when the ejector rod (13) goes downward relative to the core rod (14), the main body (2) and the core rod (14) can be axially separated so that a slider (16) releases limitation on the slip (3) through the core rod (14) to realize the fishing. The fishable tubing plug provided by the invention is convenient to use, and can seal an oil pipe and take the plug out of the oil pipe as necessary for water injection and other operations. Through the fishable tubing plug, the operation in an oil field is facilitated, the working efficiency is improved, the working time is saved, and reversible operation of oil pipe plugging can be realized, namely that the tubing plug can be taken out as necessary after being thrown into the oil pipe, thus the problems in production are effectively solved.

Description

The salvagable tubing plug

Technical field

The present invention relates to petroleum tool, be specifically related to a kind of tubing plug.

Background technology

In well preventing spraying operation process,, need stop up oil pipe in order to preserve strata pressure and protection environment.Though the tubing plug that uses at present can solve blocking problem in the oil pipe preferably, this operation is irreversible.Tubing plug is in a single day following just can not to be taken out in oil pipe again, and this just causes in real work very inconvenient sometimes.For example: after changing well head component completion replacing, and in the well workover process, owing to can not take out blanking plug, water filling again.

Summary of the invention

The purpose of this invention is to provide the salvagable tubing plug that a kind ofly is easy to use, not only can had carried out shutoff but also can from oil pipe, take out oil pipe.

Technical solution of the present invention is: it comprises top connection, main body, slips, last dottle pin, goes up packing element, spacer, lower rubber cylinder, descends dottle pin, adapter sleeve and the end stifled; The stifled lower ends in the end through screw thread and adapter sleeve; Following dottle pin, lower rubber cylinder, spacer and last packing element are positioned at stifled top, the end from bottom to top successively and are sleeved on the adapter sleeve; Last dottle pin is positioned at the packing element top and passes through thread set on adapter sleeve; The upper end of the upper end of adapter sleeve through the joint that is threaded, joint is through the lower ends of screw thread with main body, and each slips is slidingly mounted on respectively on the dovetail slideway on the main body, and the lower ends of screw thread and top connection is passed through in the upper end of main body; It also comprises drags for head, push rod, core bar, push rod stage clip, slide block, sheath, locking steel ball and following core bar; The lower end of dragging for head links to each other with the upper end of core bar through screw thread; The epimere slip cap of push rod be contained in drag in the head, the upper end of push rod protrudes in the upper surface of dragging for head; The hypomere of push rod is sleeved in the core bar upper end; The push rod stage clip be positioned at core bar and be sleeved on the hypomere of push rod, the upper end roof pressure of push rod stage clip, drags for head and core bar and slides from the top down and be inserted in the through hole of top connection and main body on the core bar inner face at the outer shroud platform lower surface upper and lower end roof pressure at push rod middle part; Slide block is installed in the below of main body internal slip, and each slide block is provided with outer inclined-plane that matches with slips and the interior inclined-plane that matches with the plagiocephaly of core bar bottom; The upper end of following core bar is through the lower ends of screw thread and core bar; The epimere of following core bar is positioned at main body and joint, hypomere slip cap are contained in adapter sleeve and cooperate the pressure compensation opening of top, core bar lower surface under the adapter sleeve sidewall between lower rubber cylinder and the spacer is provided with and is positioned at the adapter sleeve slipper seal; The locking steel ball is installed between the steel ball inner groove and the steel ball hole on the core bar wall on the main body, main body axially is connected with core bar and receives the outer shroud platform of push rod spacing; Axially throw off the qualification effect that slide block is removed slips through core bar and realize and can drag for thereby push rod can make when descending with respect to core bar between main body and the core bar, radially be provided with on the core bar with main body on axial long hole match, can drive the bearing pin that bailing on the main body plays blanking plug.

Technique effect of the present invention is: it is easy to use, and not only can carry out shutoff but also can when needed blanking plug be taken out from oil pipe oil pipe, so that other operation such as water filling, and need not oil pipe all be tripped out the blanking plug down of dismounting again from the down-hole.Use it more to help oil field operation and increase work efficiency, save the working time, stop up oil pipe realization inverse operation, promptly after dropping into blanking plug, can when needed tubing plug be taken out, solved the problem in producing effectively but make.

Description of drawings

Accompanying drawing is the axial sectional view of the embodiment of the invention.

The specific embodiment

Shown in accompanying drawing; It comprises top connection 1, main body 2, slips 3, last dottle pin 4, goes up at packing element 5, spacer 6, lower rubber cylinder 7, following dottle pin 8, adapter sleeve 9 and the end stifled 10; The lower ends of the ends stifled 10 through screw thread and adapter sleeve 9; Following dottle pin 8, lower rubber cylinder 7, spacer 6 and last packing element 5 are positioned at stifled 10 tops, the end from bottom to top successively and are sleeved on the adapter sleeve 9; Last dottle pin 4 is positioned at packing element 5 tops and passes through thread set on adapter sleeve 9; The upper end of the upper end of adapter sleeve 9 through the joint 11 that is threaded, joint 11 is through the lower ends of screw thread with main body 2, and each slips 3 is slidingly mounted on respectively on the dovetail slideway on the main body 2, and the lower ends of screw thread and top connection 1 is passed through in the upper end of main body 2; It also comprise drag for 12, push rod 13, core bar 14, push rod stage clip 15, slide block 16, locking steel ball 17 and following core bar 18; Dragging for a lower end of 12 links to each other with the upper end of core bar 14 through screw thread; The epimere slip cap of push rod 13 be contained in drag in 12, the upper ends of push rod 13 protrude in and drag for a upper surface of 12; The hypomere of push rod 13 is sleeved in core bar 14 upper ends; Push rod stage clip 15 be positioned at core bar 14 and be sleeved on the hypomere of push rod 13, the upper and lower end roof pressure drags for 12 and slides from the top down with core bar 14 and to be inserted in the through hole of top connection 1 and main body 2 on core bar 14 inner faces in the outer shroud platform lower surface at push rod 13 middle parts for the upper end roof pressure of push rod stage clip 15; Slide block 16 is installed in the below of main body 2 internal slips 3, and each slide block 16 is provided with outer inclined-plane that matches with slips 3 and the interior inclined-plane that matches with the plagiocephaly of core bar 14 bottoms; The upper end of following core bar 18 is through the lower ends of screw thread and core bar 14; The epimere of following core bar 18 is positioned at main body 2 and is contained in adapter sleeve 9 with joint 11, hypomere slip cap and cooperates the pressure compensation opening 91 of top, core bar 18 lower surfaces under adapter sleeve 9 sidewalls between lower rubber cylinder 7 and the spacer 6 are provided with and are positioned at adapter sleeve 9 slipper seals; Locking steel ball 17 is installed between the steel ball inner groove and the steel ball hole on core bar 14 walls on the main body 2, main body 2 axially is connected with core bar 14 and receives the outer shroud platform of push rod 13 spacing; Axially throw off the qualification effect that slide block 16 is removed slips 3 through core bar 14 between main body 2 and the core bar 14 and realize and can drag for thereby push rod 13 can make when descending with respect to core bar 14, radially be provided with on the core bar 14 with main body 2 on axial long hole match, can drive the bearing pin 19 that bailing on the main body 2 plays blanking plug.

Pressure compensation opening 91 can after following core bar 18 is up with respect to adapter sleeve 9, make at the end stifled 10 and adapter sleeve 9 space outerpaces between lower rubber cylinder 7 and the spacer 6 are conducted, thereby reduces to salvage difficulty.Fishing tool pushes push rod 13 compression push rod stage clips 15 from the top 12 descending with respect to dragging for, and locking steel ball 17 come off make the axial locking action releasing between main body 2 and the core bar 14.Core bar 14 can make after up with respect to main body 2 to receive in the slide block 16 restriction of slips 3 removed and make itself and tube inner wall throw off realization can to drag for.

The sheath 20 that the slide outside that main body 2 is installed slide block 16 and slips 3 positions is set with and can slides up and down with slips 3, sidewall is provided with the slips through hole.The below that is positioned at sheath 20 is installed, can limits sheath 20 and be equipped with cap 21 through screw thread on the main body 2 to lower slider.Be respectively equipped with two seals circle 22 on the outer wall that the upper and lower core bar 18 of the outer wall that following core bar 18 and adapter sleeve 9 upper ends are sealed and matched mutually and adapter sleeve 9 middle parts are sealed and matched mutually.

Operating principle of the present invention:

1, drop into: it is stifled that salvagable tubing plug of the present invention can adopt two kinds of methods to throw; Both can act on lower rubber cylinder 7 with the method for pressurizeing the salvagable tubing plug is sent into the position that oil pipe needs shutoff, also can it be sent into the position that needs shutoff with sucker rod with pump truck.After being sent to appointed part, oil pipe bottom pressure under the effect of packing element 5, main body 2 up promotion slips 3 outer Zhang Zihang grapplings can be carried out workover treatment.

2, pull out: do not needing operation, when needing to take out blanking plug, can be through winch wire or other modes; The special use fisher of weighing anchor is sent into appointed part; After salvagable tubing plug butt joint, push push rod 13 earlier and make to receive in the slips 3 blanking plug is thrown off, mention the anchor fisher on again; Can and ground be proposed, complete operation with the de-plugging of salvagable tubing plug.

Claims (4)

1. salvagable tubing plug; It comprises top connection (1), main body (2), slips (3), last dottle pin (4), goes up packing element (5), spacer (6), lower rubber cylinder (7), descends at dottle pin (8), adapter sleeve (9) and the end stifled (10); It is characterized in that: the end stifled (10) are through the lower ends of screw thread and adapter sleeve (9); Following dottle pin (8), lower rubber cylinder (7), spacer (6) and last packing element (5) are positioned at stifled (10) top, the end from bottom to top successively and are sleeved on the adapter sleeve (9); Last dottle pin (4) is positioned at packing element (5) top and passes through thread set on adapter sleeve (9); The lower ends of screw thread and main body (2) is passed through in the upper end of adapter sleeve (9) through the upper end of the joint that is threaded (11), joint (11); Each slips (3) is slidingly mounted on respectively on the dovetail slideway on the main body (2), and the upper end of main body (2) is through the lower ends of screw thread and top connection (1); It also comprises drags for head (12), push rod (13), core bar (14), push rod stage clip (15), slide block (16), locking steel ball (17) and following core bar (18); The lower end of dragging for head (12) links to each other with the upper end of core bar (14) through screw thread; The epimere slip cap of push rod (13) be contained in drag in the head (12), the upper end of push rod (13) protrudes in the upper surface of dragging for head (12); The hypomere of push rod (13) is sleeved in core bar (14) upper end; Push rod stage clip (15) be positioned at core bar (14) and be sleeved on the hypomere of push rod (13), the upper end roof pressure of push rod stage clip (15), drags for head (12) and core bar (14) and slides from the top down and be inserted in the through hole of top connection (1) and main body (2) on core bar (14) inner face at the outer shroud platform lower surface upper and lower end roof pressure at push rod (13) middle part; Slide block (16) is installed in the below of main body (2) internal slip (3), and each slide block (16) is provided with outer inclined-plane that matches with slips (3) and the interior inclined-plane that matches with the plagiocephaly of core bar (14) bottom; The upper end of following core bar (18) is through the lower ends of screw thread and core bar (14); The epimere of following core bar (18) is positioned at main body (2) and joint (11), hypomere slip cap are contained in adapter sleeve (9) and cooperate the pressure compensation opening (91) of top, core bar (18) lower surface under adapter sleeve (9) sidewall between lower rubber cylinder (7) and the spacer (6) is provided with and is positioned at adapter sleeve (9) slipper seal; Locking steel ball (17) is installed between the steel ball inner groove and the steel ball hole on core bar (14) wall on the main body (2), main body (2) axially is connected with core bar (14) and receives the outer shroud platform of push rod (13) spacing; Push rod (13) can make main body (2) and core bar (14) when descending with respect to core bar (14) thus between axially throw off the qualification effect that slide block (16) is removed slips (3) through core bar (14) and realize and can drag for, radially be provided with on the core bar (14) with main body (2) on axial long hole match, can drive the bearing pin (19) that bailing on the main body (2) plays blanking plug.
2. salvagable tubing plug as claimed in claim 1, it is characterized in that said main body (2) install the slide outside of slide block (16) and slips (3) position be set with can slide up and down with slips (3), sheath (20) that sidewall is provided with the slips through hole.
3. salvagable tubing plug as claimed in claim 2 is characterized in that said main body (2) goes up through screw thread the below that is positioned at sheath (20) to be installed, can to limit sheath (20) and be equipped with cap (21) to lower slider.
4. salvagable tubing plug as claimed in claim 1 is respectively equipped with two seals circle (22) on the outer wall that it is characterized in that being sealed and matched mutually in the middle part of the upper and lower core bar of outer wall (18) that said down core bar (18) and adapter sleeve (9) upper end be sealed and matched mutually and the adapter sleeve (9).
CN201210249456.2A 2012-07-19 2012-07-19 Fishable tubing plug CN102733776B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210249456.2A CN102733776B (en) 2012-07-19 2012-07-19 Fishable tubing plug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210249456.2A CN102733776B (en) 2012-07-19 2012-07-19 Fishable tubing plug

Publications (2)

Publication Number Publication Date
CN102733776A true CN102733776A (en) 2012-10-17
CN102733776B CN102733776B (en) 2014-08-13

Family

ID=46989998

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210249456.2A CN102733776B (en) 2012-07-19 2012-07-19 Fishable tubing plug

Country Status (1)

Country Link
CN (1) CN102733776B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106401521A (en) * 2016-10-27 2017-02-15 新疆华油油气工程有限公司 Preset plugger and plugging device which passes through electric pump and performs shaft testing without shutting shaft
CN106437604A (en) * 2016-12-21 2017-02-22 牡丹江博实石油机械科技有限公司 Leaking stoppage sealing segment
CN106437648A (en) * 2016-12-21 2017-02-22 牡丹江博实石油机械科技有限公司 Zero leakage loss flow regulating and blocking device
CN109339733A (en) * 2018-11-29 2019-02-15 江苏新彩阳机电技术有限公司 A kind of path suspension blanking plug

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4046006A (en) * 1975-07-09 1977-09-06 Alex Dufrene Tubing plug apparatus for performing down-hole pressure tests
CN201756939U (en) * 2010-08-03 2011-03-09 北京托普威尔石油技术服务有限公司 Mechanical releasing tubing plug
CN201756941U (en) * 2010-08-13 2011-03-09 北京托普威尔石油技术服务有限公司 Mechanical releasing shallow-shaft tubing plug
CN201843567U (en) * 2010-09-14 2011-05-25 马中原 Tubing plug capable of passing small hole
CN201915900U (en) * 2010-12-31 2011-08-03 中国石油天然气集团公司 Cement boosting type tubing plug
CN201915896U (en) * 2010-12-31 2011-08-03 中国石油天然气集团公司 Cone release oil pipe blanking plug

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4046006A (en) * 1975-07-09 1977-09-06 Alex Dufrene Tubing plug apparatus for performing down-hole pressure tests
CN201756939U (en) * 2010-08-03 2011-03-09 北京托普威尔石油技术服务有限公司 Mechanical releasing tubing plug
CN201756941U (en) * 2010-08-13 2011-03-09 北京托普威尔石油技术服务有限公司 Mechanical releasing shallow-shaft tubing plug
CN201843567U (en) * 2010-09-14 2011-05-25 马中原 Tubing plug capable of passing small hole
CN201915900U (en) * 2010-12-31 2011-08-03 中国石油天然气集团公司 Cement boosting type tubing plug
CN201915896U (en) * 2010-12-31 2011-08-03 中国石油天然气集团公司 Cone release oil pipe blanking plug

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106401521A (en) * 2016-10-27 2017-02-15 新疆华油油气工程有限公司 Preset plugger and plugging device which passes through electric pump and performs shaft testing without shutting shaft
CN106437604A (en) * 2016-12-21 2017-02-22 牡丹江博实石油机械科技有限公司 Leaking stoppage sealing segment
CN106437648A (en) * 2016-12-21 2017-02-22 牡丹江博实石油机械科技有限公司 Zero leakage loss flow regulating and blocking device
CN109339733A (en) * 2018-11-29 2019-02-15 江苏新彩阳机电技术有限公司 A kind of path suspension blanking plug

Also Published As

Publication number Publication date
CN102733776B (en) 2014-08-13

Similar Documents

Publication Publication Date Title
CN203729922U (en) Lowering tool for underwater control module
US20150240590A1 (en) Liner top packer for liner drilling
WO2013133860A3 (en) Method and assembly for conveying well logging tools
WO2013079926A3 (en) Drill string check valve
CN101864922B (en) Compression type dual-sealing open hole packer
CN204252969U (en) Sand control pipe and flow string
DK201400338A (en) A method and an apparatus for retrieving a tubing from a well
CN201826811U (en) Drifting scraping device
CN201851078U (en) Underground isolation bridge plug
CA2657546A1 (en) System and method for selectively communicatable hydraulic nipples
CN104074491B (en) Oil-pipe bridge plug
CN203905887U (en) Demountable hydraulic packer
RU2366798C1 (en) Hydraulic packer
WO2014044637A3 (en) Method for initiating fluid circulation using dual drill pipe
RU2483191C1 (en) Drillable packer
RU2289012C2 (en) Connector-disconnector for well packer plant (variants)
CN103216210B (en) Sand control top packer
GB2543178A (en) Method and apparatus for retrieving a tubing from a well
CN105545241A (en) Slip-type internal fisher for coiled tube
CN203308428U (en) Open hole well segmented pressure fracture packer
RU2465435C1 (en) Device for sealing casing string
CN202031510U (en) Sleeve hoop positioner
CN103806864B (en) Hydraulic set-packer small-diameter oil pipe bridge plug
CN102561991A (en) Small-diameter hydrostatic setting plug
CN104373075A (en) Fracturing packer

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20200730

Address after: 157000 Heilongjiang District, Mudanjiang City, Dongan Province East seven road Xin'an Street Woodworking Machinery Factory

Patentee after: Mudanjiang Jinheng Petroleum Machinery Technology Co.,Ltd.

Address before: 157000 No. 308 peony street, Xi'an District, Heilongjiang, Mudanjiang

Patentee before: Ma Zhongyuan