CN103556970A - Combined self-lock rubber plug - Google Patents
Combined self-lock rubber plug Download PDFInfo
- Publication number
- CN103556970A CN103556970A CN201310557834.8A CN201310557834A CN103556970A CN 103556970 A CN103556970 A CN 103556970A CN 201310557834 A CN201310557834 A CN 201310557834A CN 103556970 A CN103556970 A CN 103556970A
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- CN
- China
- Prior art keywords
- plug
- glue bowl
- rubber
- bowls
- self
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- 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.)
- Pending
Links
- 239000003292 glue Substances 0.000 claims description 53
- 208000034656 Contusions Diseases 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 4
- 230000008859 change Effects 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000002955 isolation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 210000000707 wrist Anatomy 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
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- Gasket Seals (AREA)
Abstract
The invention provides a combined self-lock rubber plug which is formed by a jointing cap, rubber bowls I, rubber bowls II, support drums, a mandril, jackscrews and a self-lock touching press head; the rubber bowls I and the rubber bowls II are axially distributed along the mandril; the rubber bowls I and the rubber bowls II are sleeved on the mandril by the support drums between the rubber bowls I and the rubber bowls II; the support drums are fastened on the mandril by the jackscrews; the rubber bowls I and the rubber bowls II can be combined according to needs. The combined self-lock rubber plug is applied to the well cementation construction of multiple levels of sleeves and slide sleeves, and is suitable for the multi-level change of inner diameters, good in wear resistance and reliable in sealing.
Description
Technical field
The present invention relates to the cementing plug in reinforcing oil well construction operation.
Background technology
Chinese patent bulletin has multiple cementing plug, but the report there are no combined self plug, be particularly suitable for the combination plug of change in diameter still less, conventional cementing plug is mainly used in sleeve pipe through changing little cementing job, but along with the development of completion technique, in bunch tube, added sliding sleeve of bushing, caused the multistage variation of internal diameter, and amplitude of variation is very large, before making, various plugs used cannot meet cementing requirements.
The like product of consulting and this are designed with very big difference, first structurally whole sulfuration, and sizing material and performance are consistent, accommodation is limited; The 2nd, can not combine according to actual condition; The 3rd, the operating mode larger to internal diameter amplitude of variation can not meet requirement.
For meeting Oil/gas Well, develop Multi-stage sleeve sliding sleeve cementing job used, design a kind of combined self plug that adapts to these technical condition, to solve this technical problem.
Summary of the invention
The object of the present invention is to provide a kind of combined self plug, this structure applies in multistage sliding sleeve cementing operation, adapts to the multistage variation of internal diameter, and abrasion resistance is good, and sealing is reliable.
Technical scheme of the present invention is as follows: a kind of combined self plug, it is characterized in that: by also cap, glue bowl I, glue bowl II, support tube, plug, jackscrew, self-locking bruising head form, glue bowl I and glue bowl II are along plug axial distribution, between glue bowl I and glue bowl II, by support tube, be sleeved on plug, support tube is fastened on plug by jackscrew, and wherein glue bowl I and glue bowl II can combine as requested.
Wherein glue bowl I has one deck lip limit, and glue bowl II has two-layer lip limit, and glue bowl I and the size of glue bowl II are, the thickness on lip limit, guide angle, material prescription are all not identical.
Described plug is a cylindrical structure, and upper and lower end car has screw thread, upper end by screw thread with and cap be connected, lower end is connected with self-locking bruising head by screw thread.
The invention has the advantages that:
1, the present invention includes glue bowl I and glue bowl II, the thickness on the size of two kinds of glue bowls, lip limit, guide angle (little glue bowl is that α, large glue bowl are β) and performance are different, to meet the variation requirement of different inner diameters, can guarantee again the isolating seal effect in displacement process; The sizing compound formula of two kinds of glue bowls and the difference of structure, greatly improve the anti-wear performance of glue wrist, and adapt to different working condition requirements, guaranteed the needs of sliding sleeve of bushing well cementation.
2, two kinds of glue bowls of the present invention, can, by practice of construction requirement combination, by adding and subtracting every kind of glue bowl number of combinations, meet the cementing operation operation of various sliding sleeve of bushings.
3, between two kinds of glue bowls of the present invention, with support tube, separate, effectively prevent two groups of interference between glue bowl, support tube can be fastened on plug by jackscrew simultaneously, prevents that one group of glue wrist from damaging the action effect that affects another group glue bowl.
Accompanying drawing explanation
Fig. 1 is one of structural representation of the present invention.
Fig. 2 is two of structural representation of the present invention.
The specific embodiment
As shown in Figure 1 and Figure 2, a kind of combined self plug, by and cap 1, glue bowl I 2, glue bowl II 3, support tube 4, plug 5, jackscrew 6, self-locking bruising 7 form, wherein and cap 1, support tube 4, plug 5, jackscrew 6, self-locking bruising 7 for can bore material, glue bowl I 2, glue bowl II 3 are along plug 5 axial distribution, plug 5 upper ends by screw thread with and cap 1 be connected, lower end is connected by screw thread and self-locking bruising 7, support tube 4 can be fastened on plug 5 by jackscrew 6.Wherein glue bowl I 2 has one deck lip limit, and glue bowl II 3 has two-layer lip limit, and glue bowl I and the size of glue bowl II are, the thickness on lip limit, guide angle (little glue bowl is that α, large glue bowl are β) and material prescription are different, to meet different working condition requirements.Make every glue bowl I 2, glue bowl II 3 to carry out independent assortment by practice of construction requirement, and guarantee that every glue bowl is stressed separately, avoid mutually interfering and one group of damage after have influence on other action effect.
Technological process is as follows:
1, this combined self plug, with the same with conventional plug, is also to send in pipe by cementing head and pump truck;
2, cementing job and as broad as long with conventional plug, but effect is completely different, is mainly by the structural parameters of two kinds of glue bowls and the difference of performance, guarantees to manage isolation and the sealing of interior displacement process.Specifically little glue bowl meets isolation and the seal request in sleeve pipe, and the combination of big or small glue bowl meets isolation and the seal request of sliding sleeve of bushing change in diameter.
3, replacement is completed bruising and is realized locking by supporting with it float collar after putting in place, and well cementing operation also comes to an end.
Above-described embodiment is a kind of scheme of the present invention, not the present invention is done to any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technical scheme that claim records.Within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (3)
1. a combined self plug, it is characterized in that: by also cap (1), glue bowl I (2), glue bowl II (3), support tube (4), plug (5), jackscrew (6), self-locking bruising head (7) form, glue bowl I (2) and glue bowl II (3) are along plug (5) axial distribution, between glue bowl I (2) and glue bowl II (3), by support tube (4), be sleeved on plug (5), it is upper that support tube (4) is fastened on plug (5) by jackscrew (6), and wherein glue bowl I (2) and glue bowl II (3) can combine as requested.
2. combined self plug according to claim 1, it is characterized in that: glue bowl I (2) has one deck lip limit, glue bowl II (3) has two-layer lip limit, and glue bowl I (2) and the size of glue bowl II (3) are, the thickness on lip limit, guide angle, material prescription are all not identical.
3. combined self plug according to claim 1, it is characterized in that: described plug (5) is cylindrical structure, the equal car of upper and lower side has screw thread, plug (5) upper end by screw thread with and cap (1) be connected, lower end is connected with self-locking bruising head (7) by screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310557834.8A CN103556970A (en) | 2013-11-08 | 2013-11-08 | Combined self-lock rubber plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310557834.8A CN103556970A (en) | 2013-11-08 | 2013-11-08 | Combined self-lock rubber plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103556970A true CN103556970A (en) | 2014-02-05 |
Family
ID=50011305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310557834.8A Pending CN103556970A (en) | 2013-11-08 | 2013-11-08 | Combined self-lock rubber plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103556970A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104563873A (en) * | 2014-12-11 | 2015-04-29 | 中国石油天然气股份有限公司 | Underground casing power guiding device |
| CN106555567A (en) * | 2015-09-24 | 2017-04-05 | 中国石油化工股份有限公司 | High angle hole, horizontal cementing abrasionproof plug |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5279370A (en) * | 1992-08-21 | 1994-01-18 | Halliburton Company | Mechanical cementing packer collar |
| US20070227745A1 (en) * | 2006-03-29 | 2007-10-04 | Smith International, Inc. | Secondary lock for a downhole tool |
| CN201052335Y (en) * | 2007-05-27 | 2008-04-30 | 张红 | Pocket for treating infantile anorexia |
| CN201843574U (en) * | 2010-11-13 | 2011-05-25 | 中国石油集团西部钻探工程有限公司 | Self-locking type well cementing rubber stopper combined device |
| CN202249929U (en) * | 2011-09-14 | 2012-05-30 | 中国石油天然气股份有限公司 | Combined self-locking reducing rubber plug for casing |
| CN102628347A (en) * | 2012-03-26 | 2012-08-08 | 中国石油集团长城钻探工程有限公司 | Compound collision pressure device of tail pipe well cementation rubber plug |
| CN203175478U (en) * | 2012-11-05 | 2013-09-04 | 王震 | Underground intelligent rubber plug apparatus |
-
2013
- 2013-11-08 CN CN201310557834.8A patent/CN103556970A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5279370A (en) * | 1992-08-21 | 1994-01-18 | Halliburton Company | Mechanical cementing packer collar |
| US20070227745A1 (en) * | 2006-03-29 | 2007-10-04 | Smith International, Inc. | Secondary lock for a downhole tool |
| CN201052335Y (en) * | 2007-05-27 | 2008-04-30 | 张红 | Pocket for treating infantile anorexia |
| CN201843574U (en) * | 2010-11-13 | 2011-05-25 | 中国石油集团西部钻探工程有限公司 | Self-locking type well cementing rubber stopper combined device |
| CN202249929U (en) * | 2011-09-14 | 2012-05-30 | 中国石油天然气股份有限公司 | Combined self-locking reducing rubber plug for casing |
| CN102628347A (en) * | 2012-03-26 | 2012-08-08 | 中国石油集团长城钻探工程有限公司 | Compound collision pressure device of tail pipe well cementation rubber plug |
| CN203175478U (en) * | 2012-11-05 | 2013-09-04 | 王震 | Underground intelligent rubber plug apparatus |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104563873A (en) * | 2014-12-11 | 2015-04-29 | 中国石油天然气股份有限公司 | Underground casing power guiding device |
| CN104563873B (en) * | 2014-12-11 | 2017-01-11 | 中国石油天然气股份有限公司 | Underground casing power guiding device |
| CN106555567A (en) * | 2015-09-24 | 2017-04-05 | 中国石油化工股份有限公司 | High angle hole, horizontal cementing abrasionproof plug |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for 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: 20140205 |