CN103016731B - Tieback plug sealing ring - Google Patents
Tieback plug sealing ring Download PDFInfo
- Publication number
- CN103016731B CN103016731B CN201210553719.9A CN201210553719A CN103016731B CN 103016731 B CN103016731 B CN 103016731B CN 201210553719 A CN201210553719 A CN 201210553719A CN 103016731 B CN103016731 B CN 103016731B
- Authority
- CN
- China
- Prior art keywords
- sealing ring
- seal groove
- tieback plug
- ring body
- tieback
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 73
- 229920000459 Nitrile rubber Polymers 0.000 claims description 6
- 238000005987 sulfurization reaction Methods 0.000 claims description 6
- 238000010276 construction Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
Abstract
The invention discloses a kind of tieback plug sealing ring, including sealing ring body, described sealing ring body has seal groove, be provided with sealing ring in described seal groove, described sealing ring is connected to one with described sealing ring body.The present invention has being hardly damaged and the feature come off, and effectively raises the reliability of tieback plug.
Description
Technical field
The present invention relates to Oil/gas Well and produce equipment technical field, specifically a kind of tieback plug
Use sealing ring.
Background technology
Along with the development of oil-gas field development technology, in order to improve oil, gas recovery ratio, a lot of levels
Well selection level well subsection acidizing pressure break barefoot completion mode.Implementing acid fracturing volume increase construction
During, need to utilize tieback plug to return after completing to give up to shaft bottom under the tubing string of bottom and insert production oil
Tubing string carries out pressure break and production, and sealing ring is the vital seal member of tieback plug.
The most traditional seal member is directly to process seal groove in tieback plug or close
Process seal groove in seal ring, rely on installation O or v shaped ring to complete sealing task.Construction
The sealing position of middle tieback plug works in particular circumstances: 1, sealing member down-hole high temperature,
Work under high pressure；2, the stroke of sealing member insertion tie-back sleeve is long；3, often because of construction demand
Tieback plug is carried out suitable adjustment, and tieback plug will repeatedly be extracted, inserted, even
Rotate.Under such special environment, traditional sealing member relies on seal groove and the sealing of correspondence
Circle seals, it is easy to because wearing and tearing, extruding and cause seal failure.If in acidifying pressure
Seal failure when splitting stimulation work, be necessary for stop pressure break, down-hole tieback part and more than
The tubing string of several kms takes out and carries out sealing ring replacing, the most not only can have a strong impact on efficiency of construction,
Improve operating cost and increase underground work risk.The most traditional tieback plug sealing
The reliability of part can not get ensureing, this is accomplished by a kind of higher sealing member of reliability.
The problem in use existed in view of above-mentioned existing tieback plug sealing ring and defect,
The innovation that the present inventor is actively studied, finally develops the tieback plug of a kind of novelty with close
Seal ring, has being hardly damaged and the feature come off, effectively raises the reliability of tieback plug.
Summary of the invention
In order to solve the above-mentioned problems in the prior art, the invention provides a kind of tieback and insert
Head sealing ring, has being hardly damaged and the feature come off, effectively raises tieback plug
Reliability.
In order to solve above-mentioned technical problem, present invention employs following technical scheme:
Tieback plug sealing ring, including sealing ring body, described sealing ring body has close
Sealing groove, is provided with sealing ring in described seal groove, described sealing ring is fixed with described sealing ring body
Connect as one.
Further, described sealing ring is filled in seal groove by mould for sulfuration nitrile rubber.
Further, the two ends outside seal groove that are positioned at of described sealing ring are respectively provided with chamfering.
Further, the seal groove on described sealing ring body is two.
Further, the inner side and outer side at the two ends of described sealing ring body is respectively provided with chamfering.
Further, the circumference of the inwall of described sealing ring body has for disposing sealing ring
Annular groove.
Compared with prior art, the beneficial effects of the present invention is:
Sulfuration nitrile rubber is closely as one by the sealing ring of the present invention with seal groove, maximum
Advantage be, one is high temperature resistant, high pressure；Two be overcome sealing ring because of shift motion length,
Abrasion, extrusion damage that insertion repeatedly is extracted and brought, the shortcoming such as come off.Effectively avoid
Because sealing member damages the difficulty brought to construction operation, therefore the design can effectively improve and to execute
Work efficiency rate, saving operating cost, reduction construction risk.
Accompanying drawing explanation
Fig. 1 is that the structure of the tieback plug sealing ring of the present invention cuts open figure；
Fig. 2 is I portion enlarged drawing in Fig. 1.
Detailed description of the invention
With specific embodiment, the present invention is described in further detail below in conjunction with the accompanying drawings, but does not makees
For limitation of the invention.
Fig. 1 is that the structure of the tieback plug sealing ring of the present invention cuts open figure.As it is shown in figure 1, return
Patch plug sealing ring, including sealing ring body 1, sealing ring body is arranged with in parallel two close
Sealing groove.Being respectively equipped with sealing ring 2 in seal groove, sealing ring 2 is fixing with sealing ring body 1 to be connected
It is integrated.Sealing ring 2 is filled in seal groove by mould for sulfuration nitrile rubber.Sealing ring
The inner side and outer side at the two ends of body 1 is respectively provided with chamfering.The week of the inwall of sealing ring body 1
Upwards there is the annular groove 3 for disposing sealing ring.When sealing ring is assembled in tieback plug,
Sealing ring is set in annular groove 3, improves tieback plug overall sealing performance.Fig. 2 is Fig. 1
Middle I portion enlarged drawing.As in figure 2 it is shown, the two ends difference being positioned at outside seal groove of sealing ring 2
There is chamfering.Chamfering can be rounded corner can also be straight chamfering.Arranging chamfering can be in grafting
When easily operated, it is to avoid sealing ring 2 damages, and strengthens sealing ring simultaneously and is stressed and cuts
To the toleration of power.
Sulfuration nitrile rubber mould is filled in seal groove by the present invention.In order to by nitrile rubber with
It is tightr that seal groove combines, and before sulfuration, seal groove is carried out sandblasting, pickling processes.Each
The sealing ring (can also increase and decrease according to demand) of 12 present invention is filled, i.e. in tieback plug
Make to be repeatedly inserted in the down-hole of High Temperature High Pressure, extract that rubber ring also can keep with seal groove tight
In conjunction with.The most such tieback plug sealing member just possessed high temperature high voltage resistant, be hardly damaged,
The feature of difficult drop-off, can improve the efficiency of construction operation, fall compared with traditional sealing member
Low cost, reduction construction risk.
Above example is only the exemplary embodiment of the present invention, is not used in the restriction present invention, this
The protection domain of invention is defined by the claims.Those skilled in the art can be the present invention's
In essence and protection domain, the present invention is made various amendment or equivalent, this amendment or
Equivalent also should be regarded as being within the scope of the present invention.
Claims (3)
1. tieback plug sealing ring, including sealing ring body, described sealing ring body has
Seal groove, is provided with sealing ring in described seal groove, it is characterised in that described sealing ring is with described
Sealing ring body is connected to one, and described sealing ring is filled out by mould for sulfuration nitrile rubber
Filling in seal groove, the two ends outside seal groove that are positioned at of described sealing ring are respectively provided with chamfering, institute
The inner side and outer side at the two ends stating sealing ring body is respectively provided with chamfering.
Tieback plug sealing ring the most according to claim 1, it is characterised in that described
Seal groove on sealing ring body is two.
Tieback plug sealing ring the most according to claim 1, it is characterised in that described
There is in the circumference of the inwall of sealing ring body the annular groove for disposing sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210553719.9A CN103016731B (en) | 2012-12-18 | Tieback plug sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210553719.9A CN103016731B (en) | 2012-12-18 | Tieback plug sealing ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103016731A CN103016731A (en) | 2013-04-03 |
| CN103016731B true CN103016731B (en) | 2016-11-30 |
Family
ID=
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4179131A (en) * | 1976-11-23 | 1979-12-18 | Patent & Inventions Ltd. | Seal arrangements |
| CN2243577Y (en) * | 1995-08-11 | 1996-12-25 | 新疆农垦科学院新型密封材料厂 | Sealing ring |
| CN2725641Y (en) * | 2004-02-19 | 2005-09-14 | 何锡岳 | Fiber cloth material composite layer non metal plane sealing pad |
| CN201078264Y (en) * | 2007-09-14 | 2008-06-25 | 宁波天力增压器有限公司 | New type gland cover of supercharger |
| CN201152358Y (en) * | 2007-07-31 | 2008-11-19 | 倪静丰 | Rectangular double layer sealing ring |
| CN101542169A (en) * | 2006-11-20 | 2009-09-23 | Fci公司 | Static/dynamic shaft seal |
| CN201627293U (en) * | 2010-03-23 | 2010-11-10 | 黄安刚 | Special lightweight composite filling part for hollow floors |
| CN203023476U (en) * | 2012-12-18 | 2013-06-26 | 安东石油技术（集团）有限公司 | Sealing ring for tie-back plug |
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4179131A (en) * | 1976-11-23 | 1979-12-18 | Patent & Inventions Ltd. | Seal arrangements |
| CN2243577Y (en) * | 1995-08-11 | 1996-12-25 | 新疆农垦科学院新型密封材料厂 | Sealing ring |
| CN2725641Y (en) * | 2004-02-19 | 2005-09-14 | 何锡岳 | Fiber cloth material composite layer non metal plane sealing pad |
| CN101542169A (en) * | 2006-11-20 | 2009-09-23 | Fci公司 | Static/dynamic shaft seal |
| CN201152358Y (en) * | 2007-07-31 | 2008-11-19 | 倪静丰 | Rectangular double layer sealing ring |
| CN201078264Y (en) * | 2007-09-14 | 2008-06-25 | 宁波天力增压器有限公司 | New type gland cover of supercharger |
| CN201627293U (en) * | 2010-03-23 | 2010-11-10 | 黄安刚 | Special lightweight composite filling part for hollow floors |
| CN203023476U (en) * | 2012-12-18 | 2013-06-26 | 安东石油技术（集团）有限公司 | Sealing ring for tie-back plug |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190114 Address after: 300450 No. 309, Second Street, Central and South China, West Binhai New Area, Tianjin Patentee after: Tianjin An Dong petroleum machinery Manufacturing Co., Ltd Address before: 100102 No. 8 Pingcui West Road, Donghuqu, Chaoyang District, Beijing Patentee before: Anton Oilfield Services (Group) Ltd. |