CN204782915U - Dual -grip bridging plug based on metal seal sleeve - Google Patents
Dual -grip bridging plug based on metal seal sleeve Download PDFInfo
- Publication number
- CN204782915U CN204782915U CN201520407148.7U CN201520407148U CN204782915U CN 204782915 U CN204782915 U CN 204782915U CN 201520407148 U CN201520407148 U CN 201520407148U CN 204782915 U CN204782915 U CN 204782915U
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- China
- Prior art keywords
- ogive
- bridging plug
- sleeve
- metal
- grip
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- Expired - Fee Related
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Abstract
The utility model provides a dual -grip bridging plug based on metal seal sleeve, includes the center tube and fixes throw -out collar, slips group, cone group and the metal sleeve on the center tube from top to bottom in proper order. Metal sleeve be the cylindrical cavity solid of revolution of cover on the bridging plug center tube. Metal sleeve constitute by ogive, a cylindricality section of thick bamboo, annular groove, rectangle recess. The ogive is in metal sleeve's center, and a cylindricality section of thick bamboo is in the both sides of ogive, and an ogive and a cylindricality section of thick bamboo are through annular groove connection. The rectangle recess sets up the inboard at a cylindricality section of thick bamboo. The utility model discloses the alloy steel material that metal sleeve selected is not only stronger than ordinary rubber sleeve at temperature toleration, crushing resistance and corrosion resistance, and the external force of metal is the more suitable batch production of non - linear relation that linear relation compares rubber with being out of shape the relation in addition. Reduce the structure of umbrella, shortened the whole length of bridging plug, saved material and cost to the control of product quality application is in batch production better.
Description
Technical field
The utility model relates to a kind of oil field bridging plug, especially a kind of dual-grip bridging plug based on metal sealing sleeve, belongs to bridge plug technology field under oil well.
Background technology
Along with increase day by day and the exploitation difficulty of consumption of petroleum, oil exploitation trend starts to be changed to horizontal well by Vertical Well, the pressure of underground increases along with the increase of mining depth simultaneously, so the sleeve of General Purpose Rubber encapsulant is more easily damaged, so the bridging plug of metal sealing tube-in-tube structure arises at the historic moment.
Utility model content
For above-mentioned the deficiencies in the prior art, the utility model provides and a kind ofly adopts the seal sleeve of alloy steel material, the entire length that shortens bridging plug, the dual-grip bridging plug based on metal sealing sleeve that saves material and cost, slow down the corrosion and damage speed of bridging plug.
For achieving the above object, the technical solution adopted in the utility model is: a kind of dual-grip bridging plug based on metal sealing sleeve, comprises central tube and is fixed on throw-out collar, slips group, cone group and the metal sleeve on central tube from top to bottom successively.
Preferably, described metal sleeve is the cylindrical, hollow revolving body be enclosed within bridging plug central tube.
Preferably, described metal sleeve is made up of ogive, pillar buoy, annular groove, rectangular recess.Ogive is in the center of metal sleeve, and pillar buoy is in the both sides of ogive, and ogive is connected by annular groove with pillar buoy.Rectangular recess is arranged on the inner side of pillar buoy.
Preferably, the top of described ogive and two pillar buoys contour.
Preferably, be arcuate structure bottom described annular groove, and a little less than ogive bottom it.
Preferably, the wall thickness of described ogive, annular groove and pillar buoy increases progressively successively.
Alloy steel material selected by the utility model metal sleeve is not only strong than General Purpose Rubber sleeve in temperature tolerance, crushing resistance and corrosion resistance, and the external force of metal is that linear relationship is more suitable for producing in batches than the non-linear relation of rubber with deformation relationship.Decrease the structure of umbrella, shorten the entire length of bridging plug, save material and cost, and control product quality is used in batch production better.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of metal sleeve.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, to the technical scheme in the utility model embodiment carry out clear, intactly describe, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment
As shown in Figure 1: a kind of dual-grip bridging plug based on metal sealing sleeve, comprise central tube 11 and be fixed on throw-out collar 1, slips group 3, cone group 10 and the metal sleeve 2 on central tube 11 from top to bottom successively.
When throw-out collar 4 receives end thrust, cone group 10 promotes slips group 3 and expands outwardly until slip insert embeds outside sleeve pipe and enables bridging plug axial restraint live.When continuing pressurization, metal sleeve receives extruding and expands outwardly until fit with outer tube wall reach sealing effectiveness, and after pressure dump, metal sleeve resilience, the slip insert promoting top embeds sleeve, thus realizes setting completely.
As shown in Figure 2: described metal sleeve adopts alloy steel to make, and is made up of ogive 6, pillar buoy 4 and 8, annular groove 5 and 7, rectangular recess 9.Ogive 6 is in the center of metal sleeve, and this ogive 6 radially protrudes, and more has coordinated the physical characteristic of alloy steel, and when structure stress is out of shape, these domes are more stable than other structures.
Pillar buoy 4,8 is in the both sides of ogive 6, and ogive 6 is connected by annular groove 5,7 with pillar buoy 4,8.Rectangular recess 9 is arranged on the inner side of pillar buoy 4,8.The top of described ogive 6 and two pillar buoys 4,8 contour.Be arcuate structure bottom described annular groove 5,7, and a little less than ogive 6 bottom it.The wall thickness of described ogive 6, annular groove 5 and 7 and pillar buoy 4 and 8 increases progressively successively.
When ogive stress deformation, the space of annular groove inside can cause unbalance stress to form turning moment, annular groove end can around minimum point upset distortion, thus the upset of both sides distortion cause ogive to external expansion, add the radial deformation of seal sleeve.Its deforming step is as follows, first the ogive in the middle of first occurs bending and deformation, along with the increase of pressure, distortion also can increase gradually, domes also can increase gradually to the extruding of both sides annular groove, annular groove can, with the minimum point of its circular arc for fulcrum deflects, so impel the end of ogive to external expansion, increases radial deflection further; When ogive stress deformation, two sealing rings are set in rectangular recess and extrude with central tube and contact, improve the sealing performance of metal sleeve better.
Claims (6)
1. based on a dual-grip bridging plug for metal sealing sleeve, it is characterized in that: comprise central tube and be fixed on throw-out collar, slips group, cone group and the metal sleeve on central tube from top to bottom successively.
2. a kind of dual-grip bridging plug based on metal sealing sleeve as claimed in claim 1, is characterized in that: described metal sleeve is the cylindrical, hollow revolving body be enclosed within bridging plug central tube.
3. a kind of dual-grip bridging plug based on metal sealing sleeve as claimed in claim 1 or 2, is characterized in that: described metal sleeve is made up of ogive, pillar buoy, annular groove, rectangular recess; Ogive is in the center of metal sleeve, and pillar buoy is in the both sides of ogive, and ogive is connected by annular groove with pillar buoy; Rectangular recess is arranged on the inner side of pillar buoy.
4. a kind of dual-grip bridging plug based on metal sealing sleeve as claimed in claim 3, is characterized in that: the top of described ogive and two pillar buoys contour.
5. a kind of dual-grip bridging plug based on metal sealing sleeve as claimed in claim 3, is characterized in that: be arcuate structure bottom described annular groove, and a little less than ogive bottom it.
6. a kind of dual-grip bridging plug based on metal sealing sleeve as claimed in claim 3, is characterized in that: the wall thickness of described ogive, annular groove and pillar buoy increases progressively successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520407148.7U CN204782915U (en) | 2015-06-12 | 2015-06-12 | Dual -grip bridging plug based on metal seal sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520407148.7U CN204782915U (en) | 2015-06-12 | 2015-06-12 | Dual -grip bridging plug based on metal seal sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204782915U true CN204782915U (en) | 2015-11-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520407148.7U Expired - Fee Related CN204782915U (en) | 2015-06-12 | 2015-06-12 | Dual -grip bridging plug based on metal seal sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204782915U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106121580A (en) * | 2016-06-24 | 2016-11-16 | 成都维泰油气能源技术有限公司 | A kind of High Temperature High Pressure soluble metal sealing drum |
| CN106801590A (en) * | 2017-01-20 | 2017-06-06 | 北京中科金腾科技有限公司 | A kind of dissolvable slips and bridging plug |
| CN110374549A (en) * | 2019-07-31 | 2019-10-25 | 陕西海格瑞恩实业有限公司 | A kind of solvable big orifice bridge plug of all-metal dual-grip |
| CN110397421A (en) * | 2019-07-31 | 2019-11-01 | 陕西海格瑞恩实业有限公司 | A kind of solvable big orifice bridge plug of all-metal single deck tape-recorder watt |
-
2015
- 2015-06-12 CN CN201520407148.7U patent/CN204782915U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106121580A (en) * | 2016-06-24 | 2016-11-16 | 成都维泰油气能源技术有限公司 | A kind of High Temperature High Pressure soluble metal sealing drum |
| CN106121580B (en) * | 2016-06-24 | 2019-02-26 | 成都维泰油气能源技术有限公司 | A kind of high temperature and pressure soluble metal sealing drum |
| CN106801590A (en) * | 2017-01-20 | 2017-06-06 | 北京中科金腾科技有限公司 | A kind of dissolvable slips and bridging plug |
| CN110374549A (en) * | 2019-07-31 | 2019-10-25 | 陕西海格瑞恩实业有限公司 | A kind of solvable big orifice bridge plug of all-metal dual-grip |
| CN110397421A (en) * | 2019-07-31 | 2019-11-01 | 陕西海格瑞恩实业有限公司 | A kind of solvable big orifice bridge plug of all-metal single deck tape-recorder watt |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20180612 |