CN103643914A - Multifunctional bushing self-sealing repair and connection device - Google Patents
Multifunctional bushing self-sealing repair and connection device Download PDFInfo
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- CN103643914A CN103643914A CN201310550402.4A CN201310550402A CN103643914A CN 103643914 A CN103643914 A CN 103643914A CN 201310550402 A CN201310550402 A CN 201310550402A CN 103643914 A CN103643914 A CN 103643914A
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- ring
- urceolus
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Abstract
The invention relates to the technical field of oil filed oil well repair tools and particularly relates to a multifunctional bushing self-sealing repair and connection device. The repair and connection device comprises a grappling component and a sealing component. The grappling component comprises an upper joint, a guiding shoe, an outer cylinder and a connection cylinder which are arranged between the upper joint and the guiding shoe successively and a slip connected internally with the outer cylinder. Locating keys on the inner wall of the outer cylinder are snapped in grooves of the slip, and a milling ring is arranged at the connection position of the connection cylinder and the guiding shoe. According to the device, the structure is used, so that the inner drift diameter is kept unchanged; meanwhile, the primary seal is achieved through lead rings, and the secondary seal is achieved through cementing well cementation, so that the device is good in seal performance, convenient to operate and use and capable of effectively improving the repair and connection strength and prolonging the service life. Besides, the device has the advantages of being reasonable in design, simple in structure, low in manufacture cost and the like.
Description
Technical field
The present invention relates to oilfield repair outfit technical field, be specifically related to Multifunctional casing self sealss rejoining device.
Background technology
Nowadays, because of downhole corrosion environment, often there is tube wall breakage in oil well inner sleeve.The method of repairing in prior art is that special equipment is subsidized one section of new benefit pipe on casing damage place inwall, its shortcoming is to need import special equipment, complicated operation, rehabilitation cost is high, and breakage casing inner diameter is diminished, other instrument of G.I.H is hampered, and exists sealing part compressive property poor, it is low application life that benefit meets place.
Summary of the invention
The object of this invention is to provide a kind of reasonable in design, simple in structure, easy to use, improve to mend connect intensity, keep in constant, the good seal performance of latus rectum, the Multifunctional casing self sealss rejoining device that increases the service life.
In order to solve the existing problem of background technology, the present invention is by the following technical solutions: Multifunctional casing self sealss rejoining device, comprise grabbing and drag for assembly and black box, described grab drag for assembly comprise top connection, guide shoe, be successively located at urceolus between described top connection and guide shoe and connecting cylinder and with described urceolus in the slips that connects, positioning key on described outer tube inner wall is stuck in the groove of described slips, and the junction of described connecting cylinder and guide shoe is provided with milling ring; Described black box comprises sealing ring, gate ring, spacer ring, the first lead ring, upper extruding circle, the second lead ring, lower extruding circle and O RunddichtringO, the junction of described top connection and urceolus is provided with sealing ring, and the junction of described urceolus and connecting cylinder is provided with gate ring, spacer ring, the first lead ring, upper extruding circle, the second lead ring, lower extruding circle and O RunddichtringO successively.
Further, the outside of described slips is provided with cement passage.
The present invention has following beneficial effect: Multifunctional casing self sealss rejoining device of the present invention, mainly grab and drag for assembly and black box, wherein, grab drag for assembly comprise top connection, guide shoe, be successively located at urceolus between top connection and guide shoe and connecting cylinder and with urceolus in the slips that connects; The present invention adopts said structure, makes it to keep interior latus rectum constant, adopts lead ring to realize once sealing simultaneously, adopts cementing well, realizes secondary seal, good seal performance, and easy for operation, effectively improve benefit and connect intensity and extend its application life.In addition, the present invention has the features such as reasonable in design, simple in structure, low cost of manufacture.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of slips in the present invention.
Fig. 3 is the top view of Fig. 2.
Fig. 4 is stressed schematic diagram of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention will be further described in detail.
As Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4, Multifunctional casing self sealss rejoining device, comprise grabbing and drag for assembly and black box, described grabbing dragged for assembly and comprised top connection 1, guide shoe 15, be located at successively urceolus 3 and connecting cylinder 13 between described top connection 1 and guide shoe 15, and with described urceolus 3 in the slips 4 that connects, positioning key 5 on described urceolus 3 inwalls is stuck in the groove of described slips 4, described connecting cylinder 13 is provided with milling ring 14 with the junction of guide shoe 15, wherein, the inside and outside taper fit of slips and urceolus, adopt the positioning key on outer tube inner wall to be stuck in the groove of slips, its objective is the movement locus that limits slips, described black box comprises sealing ring 2, gate ring 6, spacer ring 7, the first lead ring 8, upper extruding circle 9, the second lead ring 10, lower extruding circle 11 and O RunddichtringO 12, described top connection 1 is provided with sealing ring 2 with the junction of urceolus 3, and described urceolus 3 is provided with gate ring 6, spacer ring 7, the first lead ring 8, upper extruding circle 9, the second lead ring 10, lower extruding circle 11 and O RunddichtringO 12 successively with the junction of connecting cylinder 13.In the present embodiment, urceolus diameter is 193mm, and the internal diameter of slips is 138mm, and its operating principle is as follows: the instrument that rotation is transferred, utilize guide shoe righting sleeve pipe, and opening milling ring is removed cannula tip burr, holds sleeve pipe; Instrument continues descending, when cannula tip arrives slips lower end, because slip design internal diameter is slightly less than sleeve pipe external diameter, between Yin Kawa and sleeve pipe, produces resistance, makes slips in deployed position; When instrument, transfer to behind precalculated position, above carry urceolus, slips is grabbed and is dragged for sleeve pipe, and lead ring, in the active force lower compression distortion of slips and urceolus, is realized once sealing simultaneously.In addition, the outside of described slips 4 is provided with cement passage, notes grey well cementation simultaneously and can realize secondary seal.
Finally explanation is, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, other modifications that those of ordinary skills make technical scheme of the present invention or be equal to replacement, only otherwise depart from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of claim scope of the present invention.
Claims (2)
1. Multifunctional casing self sealss rejoining device, comprise grabbing and drag for assembly and black box, it is characterized in that, described grab drag for assembly comprise top connection (1), guide shoe (15), be successively located at urceolus (3) between described top connection (1) and guide shoe (15) and connecting cylinder (13) and with described urceolus (3) in the slips (4) that connects, positioning key (5) on described urceolus (3) inwall is stuck in the groove of described slips (4), and described connecting cylinder (13) is provided with milling ring (14) with the junction of guide shoe (15); Described black box comprises sealing ring (2), gate ring (6), spacer ring (7), the first lead ring (8), upper extruding circle (9), the second lead ring (10), lower extruding circle (11) and O RunddichtringO (12), described top connection (1) is provided with sealing ring (2) with the junction of urceolus (3), and described urceolus (3) is provided with gate ring (6), spacer ring (7), the first lead ring (8), upper extruding circle (9), the second lead ring (10), lower extruding circle (11) and O RunddichtringO (12) successively with the junction of connecting cylinder (13).
2. Multifunctional casing self sealss rejoining device according to claim 1, is characterized in that, the outside of described slips (4) is provided with cement passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310550402.4A CN103643914A (en) | 2013-11-08 | 2013-11-08 | Multifunctional bushing self-sealing repair and connection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310550402.4A CN103643914A (en) | 2013-11-08 | 2013-11-08 | Multifunctional bushing self-sealing repair and connection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103643914A true CN103643914A (en) | 2014-03-19 |
Family
ID=50249186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310550402.4A Pending CN103643914A (en) | 2013-11-08 | 2013-11-08 | Multifunctional bushing self-sealing repair and connection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103643914A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111894504A (en) * | 2020-07-30 | 2020-11-06 | 合力（天津）能源科技股份有限公司 | Hydraulic sealing patch connector suitable for casing and oil pipe |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2161238C1 (en) * | 1999-05-21 | 2000-12-27 | Открытое акционерное общество "Татнефть", Татарский научно-исследовательский и проектный институт нефти | Device for repair of casing string |
| CN2451717Y (en) * | 2000-05-30 | 2001-10-03 | 中国通化石油工具股份有限公司 | Packer type casing pipe rejoining device |
| CN2464926Y (en) * | 2000-05-30 | 2001-12-12 | 中国通化石油工具股份有限公司 | Lead seal cement pouring sleeve joint |
| US7048067B1 (en) * | 1999-11-01 | 2006-05-23 | Shell Oil Company | Wellbore casing repair |
| CN201100109Y (en) * | 2007-09-29 | 2008-08-13 | 华北石油管理局 | Return and complementary connector for self sealing card tile bushing |
| CN201650179U (en) * | 2009-12-18 | 2010-11-24 | 贵州高峰石油机械股份有限公司 | Packer type sleeve repairing and connecting device with spiral slip |
| CN203559846U (en) * | 2013-11-08 | 2014-04-23 | 江苏君鑫谊石油机械有限公司 | Multifunctional self-sealing patching device for casing |
-
2013
- 2013-11-08 CN CN201310550402.4A patent/CN103643914A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2161238C1 (en) * | 1999-05-21 | 2000-12-27 | Открытое акционерное общество "Татнефть", Татарский научно-исследовательский и проектный институт нефти | Device for repair of casing string |
| US7048067B1 (en) * | 1999-11-01 | 2006-05-23 | Shell Oil Company | Wellbore casing repair |
| CN2451717Y (en) * | 2000-05-30 | 2001-10-03 | 中国通化石油工具股份有限公司 | Packer type casing pipe rejoining device |
| CN2464926Y (en) * | 2000-05-30 | 2001-12-12 | 中国通化石油工具股份有限公司 | Lead seal cement pouring sleeve joint |
| CN201100109Y (en) * | 2007-09-29 | 2008-08-13 | 华北石油管理局 | Return and complementary connector for self sealing card tile bushing |
| CN201650179U (en) * | 2009-12-18 | 2010-11-24 | 贵州高峰石油机械股份有限公司 | Packer type sleeve repairing and connecting device with spiral slip |
| CN203559846U (en) * | 2013-11-08 | 2014-04-23 | 江苏君鑫谊石油机械有限公司 | Multifunctional self-sealing patching device for casing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111894504A (en) * | 2020-07-30 | 2020-11-06 | 合力（天津）能源科技股份有限公司 | Hydraulic sealing patch connector suitable for casing and oil pipe |
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| PB01 | 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: 20140319 |