CN203097799U - Inflatable oil-scraping self-sealing preventer - Google Patents
Inflatable oil-scraping self-sealing preventer Download PDFInfo
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- CN203097799U CN203097799U CN 201320012614 CN201320012614U CN203097799U CN 203097799 U CN203097799 U CN 203097799U CN 201320012614 CN201320012614 CN 201320012614 CN 201320012614 U CN201320012614 U CN 201320012614U CN 203097799 U CN203097799 U CN 203097799U
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Abstract
The utility model discloses an inflatable oil-scraping self-sealing preventer, and belongs to the technical field of oil field oil extraction and well repair. A gas injection gas faucet is connected on a cylindrical shell body of a base, through holes and a backing ring groove are formed in a base flange plate, the base flange plate is connected with a flange plate of a blowout preventer, circular holes are formed in the cylindrical shell body, a rubber core is arranged in cylindrical space in the cylindrical shell body, O-shaped rings are mounted at two ends of the rubber core, external threads are arranged on the outer side of the cylinder of the cylindrical shell body, and the external threads of the cylindrical shell body are connected with internal threads of a cover plate. Through holes and a backing ring groove are formed in the end face of a cover plate flange plate, cylindrical space containing the rubber core and internal threads are arranged inside the cylinder, and the cover plate flange plate is connected with an air operated slip. The rubber core is a tubular rubber piece with two ends in cone shapes, metal supporting rings of the O-shaped rings are arranged at two ends of the rubber core in a vulcanization mode, the metal supporting rings are provided with sealing grooves of the O-shaped rings, and the inner bore of the rubber core is 3mm to 5mm smaller than the outer diameter of an oil pipe body. A multistage arris section for oil scraping is arranged in the inner cavity of the rubber core. The inflatable oil-scraping self-sealing preventer achieves the purposes of reducing environment pollution, avoiding well blowout, preventing small parts from falling into a well, and reducing operation cost.
Description
Technical field
The utility model relates to a kind of air filling type frizing self-sealing blowout preventer, belongs to oil recovery well workover technology field, oil field.
Background technology
In the thickened oil recovery process,, stick on the flow string at present, when carrying out the heavy oil wells operation, ground environment and workover rig, site operation personnel are caused bigger pollution because viscous crude has bigger viscosity.Remove to pollute on ground, the viscous crude of equipment, personnel's health is taken a lot of work, time-consuming, waste material, has greatly increased labourer's intensity.Simultaneously, the present well head blowout preventer that uses, project organization and glue core quality can not satisfy the requirement of viscous crude operation, do not have knife-type oil stripping action, can not solve condensed oil polluted problem.The glue core weares and teares easily, has increased the cost of underground work.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of air filling type frizing self-sealing blowout preventer, when heavy oil wells operation or conventional workover treatment, the viscous crude that sticks on the flow string is removed, and reaches to reduce and pollutes, the purpose of protection environment.Playing preventing blowout simultaneously, prevent the small articles well that falls, reduce the purpose of glue core use cost, is a kind of well head well control operation environmental protection instrument of removing oil-pipe external wall viscous crude and the operation of conventional well well control.
A kind of air filling type frizing self-sealing blowout preventer, base be base flange plate in conjunction with cylindrical shell, on the cylindrical shell of base, connect the gas injection valve;
Through hole and gasket ring groove are arranged on the base flange plate, and base flange plate links to each other with the preventer flange, and circular hole is arranged in the cylindrical shell, and the glue core is installed in the cylindrical space in the cylindrical shell, and O shape circle is equipped with at glue core two ends;
There is external screw thread the outside on the cylinder of cylindrical shell, and the external screw thread of cylindrical shell is connected with the internal thread of cover plate;
In conjunction with forming, the end face of cover plate flange has through hole and gasket ring groove to cover plate by cover plate flange and cylinder, and cylindrical space and the internal thread of placing the glue core are arranged in the cylinder, and the cover plate flange is connected with air operated slips;
The glue core is the conical tubular body rubber spare in two, and the metal supporting rings of O shape circle is equipped with in periphery sulfuration in two ends, and metal supporting rings has the seal groove of O shape circle, the little 3-5 millimeter of this body diameter of glue in-core boring ratio oil pipe; The multistage rib band that frizing is arranged in glue in-core chamber.
The diameter of base flange plate is 380 millimeters; Through hole on the base flange plate and gasket ring groove are 12, and diameter is 33 millimeters.
The diameter of cover plate flange is 435 millimeters, and the through hole of cover plate flange and gasket ring groove have 12, and diameter is 35 millimeters.
The utility model has the advantages that provides a kind of air filling type frizing self-sealing blowout preventer, in the heavy oil production operation, has the viscous crude of removing flow string, working string oil-pipe external wall, work as variations in temperature, when removing viscous crude effect is undesirable, cause viscous crude removing in winter to take place at need, insert the source of the gas of working rig from the gas injection valve, inner hole surface at the glue core forms certain pressure, further plays the effect of removing viscous crude.Reach the reduction environment pollution, prevent blowout, prevent the small articles well that falls, reduce the purpose of operating cost.
Description of drawings
When considered in conjunction with the accompanying drawings, by the reference following detailed, can more completely understand the utility model better and learn wherein many attendant advantages easily, but accompanying drawing described herein is used to provide further understanding of the present utility model, constitute a part of the present utility model, illustrative examples of the present utility model and explanation thereof are used to explain the utility model, do not constitute improper qualification of the present utility model, as figure wherein:
Fig. 1 is the structural representation of a kind of air filling type frizing of the utility model self-sealing blowout preventer.
Fig. 2 is a covering plate structure schematic diagram of the present utility model.
Below in conjunction with drawings and Examples the utility model is further specified.
The specific embodiment
Obviously, the many modifications and variations done based on aim of the present utility model of those skilled in the art belong to protection domain of the present utility model.
Embodiment 1: as shown in Figure 1 and Figure 2, a kind of air filling type frizing self-sealing blowout preventer is made up of base 1, cover plate 2, glue core 3, O shape circle 4, gas injection valve 5; Glue core 3 is housed in the base 1, and O shape circle 4 is equipped with at glue core 3 two ends, by being threaded, forms a kind of air filling type frizing self-sealing blowout preventer between base 1 and the cover plate 2, and on base 1 cylindrical shell connection gas injection valve 5;
Glue core 3 is the conical tubular body rubber spare in two, and the metal supporting rings of O shape circle 4 is equipped with in periphery sulfuration in two ends, and metal supporting rings has the seal groove of O shape circle 4, the little 3-5 millimeter of this body diameter of boring ratio oil pipe in the glue core 3.And the multistage rib band that frizing is arranged at glue core 3 inner chambers.
Embodiment 2:
A kind of air filling type frizing self-sealing blowout preventer, during use, air filling type frizing self-sealing blowout preventer lower surface is connected with the preventer upper surface of well head, instrument short circuit with special use is extracted tubing coupling out in the middle of a kind of air filling type frizing self-sealing blowout preventer, with elevator oil pipe is sitting in plane on a kind of air filling type frizing self-sealing blowout preventer.When the viscous crude operation, pulling out of hole, stick to viscous crude on the oil-pipe external wall the time through a kind of air filling type frizing self-sealing blowout preventer glue core, because the diameter of bore of glue core is than the little 3-5 millimeter of external diameter of oil pipe, oil pipe body periphery is formed the magnitude of interference, add the rib band of frizing, the viscous crude of oil-pipe external wall can be removed during trip-out, reach the purpose that lowers environment pollution, play preventing blowout simultaneously, prevent the small articles well that falls, reduce the purpose of glue core use cost.Because viscous crude is along with variation of temperature, crystallization changes in the viscous crude wax soft durometer of oil pipe, cause viscous crude removing in winter that difficulty takes place, can insert the source of the gas of working rig from gas injection valve 5, inner hole surface at the glue core forms certain pressure, increase the pressure in glue in-core hole, further played the effect of removing viscous crude.
As mentioned above, embodiment of the present utility model is explained, but as long as not breaking away from inventive point of the present utility model and effect in fact can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, such variation also all is included within the protection domain of the present utility model.
Claims (3)
1. air filling type frizing self-sealing blowout preventer, it is characterized in that base be base flange plate in conjunction with cylindrical shell, on the cylindrical shell of base, connect the gas injection valve;
Through hole and gasket ring groove are arranged on the base flange plate, and base flange plate links to each other with the preventer flange, and circular hole is arranged in the cylindrical shell, and the glue core is installed in the cylindrical space in the cylindrical shell, and O shape circle is equipped with at glue core two ends;
There is external screw thread the outside on the cylinder of cylindrical shell, and the external screw thread of cylindrical shell is connected with the internal thread of cover plate;
In conjunction with forming, the end face of cover plate flange has through hole and gasket ring groove to cover plate by cover plate flange and cylinder, and cylindrical space and the internal thread of placing the glue core are arranged in the cylinder, and the cover plate flange is connected with air operated slips;
The glue core is the conical tubular body rubber spare in two, and the metal supporting rings of O shape circle is equipped with in periphery sulfuration in two ends, and metal supporting rings has the seal groove of O shape circle, the little 3-5 millimeter of this body diameter of glue in-core boring ratio oil pipe; The multistage rib band that frizing is arranged in glue in-core chamber.
2. a kind of air filling type frizing self-sealing blowout preventer according to claim 1, the diameter that it is characterized in that base flange plate is 380 millimeters; Through hole on the base flange plate and gasket ring groove are 12, and diameter is 33 millimeters.
3. a kind of air filling type frizing self-sealing blowout preventer according to claim 1, the diameter that it is characterized in that the cover plate flange is 435 millimeters, and the through hole of cover plate flange and gasket ring groove have 12, and diameter is 35 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320012614 CN203097799U (en) | 2013-01-10 | 2013-01-10 | Inflatable oil-scraping self-sealing preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320012614 CN203097799U (en) | 2013-01-10 | 2013-01-10 | Inflatable oil-scraping self-sealing preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203097799U true CN203097799U (en) | 2013-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320012614 Expired - Fee Related CN203097799U (en) | 2013-01-10 | 2013-01-10 | Inflatable oil-scraping self-sealing preventer |
Country Status (1)
| Country | Link |
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| CN (1) | CN203097799U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108119086A (en) * | 2017-11-23 | 2018-06-05 | 中国石油天然气股份有限公司 | Interface switching device |
| CN110485965A (en) * | 2019-07-26 | 2019-11-22 | 大连理工大学 | Crude oil blowout swathes inflation squash type plugging device |
| CN110630216A (en) * | 2019-10-15 | 2019-12-31 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Drill rod mud scraper and using method thereof |
| CN113464081A (en) * | 2020-03-30 | 2021-10-01 | 中国石油化工股份有限公司 | Coal bed gas micro-strip pressure well repairing process |
-
2013
- 2013-01-10 CN CN 201320012614 patent/CN203097799U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108119086A (en) * | 2017-11-23 | 2018-06-05 | 中国石油天然气股份有限公司 | Interface switching device |
| CN110485965A (en) * | 2019-07-26 | 2019-11-22 | 大连理工大学 | Crude oil blowout swathes inflation squash type plugging device |
| CN110485965B (en) * | 2019-07-26 | 2021-08-06 | 大连理工大学 | Winding inflatable extrusion type plugging device for crude oil blowout |
| CN110630216A (en) * | 2019-10-15 | 2019-12-31 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Drill rod mud scraper and using method thereof |
| CN113464081A (en) * | 2020-03-30 | 2021-10-01 | 中国石油化工股份有限公司 | Coal bed gas micro-strip pressure well repairing process |
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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: 20130731 Termination date: 20220110 |
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| CF01 | Termination of patent right due to non-payment of annual fee |