CN203559846U - Multifunctional self-sealing patching device for casing - Google Patents
Multifunctional self-sealing patching device for casing Download PDFInfo
- Publication number
- CN203559846U CN203559846U CN201320701744.7U CN201320701744U CN203559846U CN 203559846 U CN203559846 U CN 203559846U CN 201320701744 U CN201320701744 U CN 201320701744U CN 203559846 U CN203559846 U CN 203559846U
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- China
- Prior art keywords
- ring
- sealing
- guide shoe
- urceolus
- slips
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Abstract
The utility model relates to the technical field of oilfield and oilwell repairing tools, in particular to a multifunctional self-sealing patching device for a casing. The multifunctional self-sealing patching device comprises a grabbing component and a sealing component, wherein the grabbing component comprises an upper connector, a guide shoe, an outer barrel, a connecting barrel and a slip internally connected with the outer barrel, the outer barrel and the connecting barrel are sequentially arranged between the upper connector and the guide shoe, positioning keys on the inner wall diameter of the outer barrel are clamped in a slip groove, and a mill ring is arranged in the position where the connecting barrel and the guide shoe are connected. With the adoption of the structure, the internal diameter is kept unchanged, simultaneously, a lead ring is adopted for primary sealing, grouting well cementation is adopted for secondary sealing, the sealing performance is good, further, the operation and usage are convenient, the patching strength is effectively improved, and the service life is prolonged; and besides, the multifunctional self-sealing patching device for the casing has the characteristics of reasonable design, simple structure, low manufacturing cost and the like.
Description
Technical field
The utility model relates to oilfield repair outfit technical field, is 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 purpose of this utility model be to provide a kind of reasonable in design, simple in structure, easy to use, improve 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 utility model 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 utlity model has following beneficial effect: Multifunctional casing self sealss rejoining device described in the utility model, 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 utility model 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 utlity model 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 utility model.
Fig. 2 is the structural representation of slips in the utility model.
Fig. 3 is the top view of Fig. 2.
Fig. 4 is stressed schematic diagram of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in more 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 the technical solution of the utility model to be described, other modifications that those of ordinary skills make the technical solution of the utility model or be equal to replacement, only otherwise depart from the spirit and scope of technical solutions of the utility model, all should be encompassed in the middle of claim scope of the present utility model.
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 |
|---|---|---|---|
| CN201320701744.7U CN203559846U (en) | 2013-11-08 | 2013-11-08 | Multifunctional self-sealing patching device for casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320701744.7U CN203559846U (en) | 2013-11-08 | 2013-11-08 | Multifunctional self-sealing patching device for casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203559846U true CN203559846U (en) | 2014-04-23 |
Family
ID=50509574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320701744.7U Expired - Fee Related CN203559846U (en) | 2013-11-08 | 2013-11-08 | Multifunctional self-sealing patching device for casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203559846U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643914A (en) * | 2013-11-08 | 2014-03-19 | 江苏君鑫谊石油机械有限公司 | Multifunctional bushing self-sealing repair and connection device |
-
2013
- 2013-11-08 CN CN201320701744.7U patent/CN203559846U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643914A (en) * | 2013-11-08 | 2014-03-19 | 江苏君鑫谊石油机械有限公司 | Multifunctional bushing self-sealing repair and connection device |
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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 |
Granted publication date: 20140423 Termination date: 20141108 |
|
| EXPY | Termination of patent right or utility model |