CN203547640U - Novel blowout preventer - Google Patents
Novel blowout preventer Download PDFInfo
- Publication number
- CN203547640U CN203547640U CN201320753301.2U CN201320753301U CN203547640U CN 203547640 U CN203547640 U CN 203547640U CN 201320753301 U CN201320753301 U CN 201320753301U CN 203547640 U CN203547640 U CN 203547640U
- Authority
- CN
- China
- Prior art keywords
- housing
- elastic gum
- elastic rubber
- rubber core
- shell
- 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.)
- Expired - Fee Related
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- Pressure Vessels And Lids Thereof (AREA)
Abstract
The utility model relates to a novel blowout preventer, and belongs to the field of well mouth sleeve sealing devices used for oil fields. The novel blowout preventer comprises a shell, a pressing cap and an elastic rubber core, and is characterized in that the shell is connected with the pressing cap through a bolt assembly, the shell, the pressing cap and the elastic rubber core are all of a two-clack structure, the elastic rubber core is located in a center hole of the shell and is blocked by a step at the lower end of the shell, the lower end of the pressing cap is inserted into the center hole of the shell and presses the elastic rubber core, and threaded holes corresponding to an upper plane of a four-way joint of a well mouth are symmetrically formed in the bottom end of the shell. The two clacks of the elastic rubber core are connected in an oppositely-inserted mode. The pressing cap presses the elastic rubber core through the bolt assembly, mild abrasion to the elastic rubber core can be compensated for by adjusting the bolt assembly, and the service life of the elastic rubber core is prolonged.
Description
Technical field
The utility model relates to oil field wellhead casing pipe sealing device, and concrete is a kind of Novel well shutting-in device.
Background technology
Auto Isolator Well Head is indispensable wellhead assembly in workover treatment, the self-sealing blowout preventer always using in workover treatment for a long time must pass through and unload tubing string, lift and put self-styled, elevator and pluck the actions such as button and just can complete, install, dismantle very inconvenient, when particularly running into well kick or blowout in the process of making a trip and needing installing wellhead, affect service speed, have larger potential safety hazard.The existing weak point of prior art that Here it is.
Utility model content
Technical problem to be solved in the utility model, is exactly for the existing deficiency of prior art, and a kind of Novel well shutting-in device is provided, and fast and easy is installed, dismounting.
This programme is achieved by the following technical measures: a kind of Novel well shutting-in device, it comprises housing, pressure cap and elastic gum core, described housing is connected by bolt assembly with pressure cap, described housing, pressure cap and elastic gum core are two lobe formula structures, described elastic gum core is positioned at the centre bore of housing and is blocked by the step of housing lower end, described pressure cap lower end is inserted in the centre bore of housing and is compressed elastic gum core, and described housing bottom is symmetrically arranged with the screwed hole corresponding with plane on well head four-way.
Above-mentioned two lobe elastic gum cores adopt slotting connected mode are connected, and the junction of described two lobe elastic gum cores is provided with groove and the boss of mutual coupling.Connect closely, seal degree is higher.
Above-mentioned two lobe elastic gum cores adopt slotting connected mode are connected, and the junction of described two lobe elastic gum cores is provided with mutual coupling gear shaping.Connect closely, seal degree is higher.
Above-mentioned pressure cap lower end and housing upper end are matched in clearance.
Above-mentioned housing upper end is provided with the counterbore mating with the bolt in bolt assembly, and described bolt upper surface is concordant with housing upper surface.
The beneficial effects of the utility model can be learnt from above-mentioned technical scheme: a kind of Novel well shutting-in device, and described housing, pressure cap and elastic gum core are two lobe formula structures, and elastic gum core is installed, dismantles, changed to fast and easy.Pressure cap compresses elastic gum core by bolt assembly, can make up by transfer bolt assembly the mild wear of elastic gum core, improves the application life of elastic gum core.
As can be seen here, the utility model compared with prior art, has substantive distinguishing features and progress, and the beneficial effect of its enforcement is also apparent.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model specific embodiment;
Fig. 2 is the structural representation of two lobe elastic gum cores to slotting connection in the utility model specific embodiment.
In figure, 1-housing, 1.1-step, 2-pressure cap, 3-elastic gum core, 3.1-gear shaping, 4-bolt, 5-nut, 6-screwed hole, 7-oil pipe.
The specific embodiment
For clearly demonstrating the technical characterstic of this programme, below by the specific embodiment, and in conjunction with its accompanying drawing, this programme is set forth.
As shown in the figure, a kind of Novel well shutting-in device, it comprises housing 1, pressure cap 2 and elastic gum core 3, described housing 1 is connected by bolt assembly with pressure cap 2, described housing 1, pressure cap 2 and elastic gum core 3 are two lobe formula structures, described elastic gum core 3 is positioned at the centre bore of housing 1 and is blocked by the step 1.1 of housing 1 lower end, and described pressure cap 2 lower ends are inserted in the centre bore of housings 1 and compressed elastic gum core 3, and described housing 1 bottom is symmetrically arranged with the screwed hole 6 corresponding with plane on well head four-way.
Described two lobe elastic gum cores 3 adopt slotting connected mode are connected, and the junction of described two lobe elastic gum cores 3 is provided with groove and the boss of mutual coupling, or the junction of described two lobe elastic gum cores 3 is provided with mutual coupling gear shaping 3.1.In the present embodiment, the junction of described two lobe elastic gum cores 3 is provided with mutual coupling gear shaping 3.1.
Described pressure cap 2 lower ends and housing 1 upper end are matched in clearance.
Described housing 1 upper end is provided with the counterbore mating with the bolt 4 in bolt assembly, and described bolt 4 upper surfaces are concordant with housing 1 upper surface.
When this Novel well shutting-in device is installed, existing by two lobe elastic gum cores 3 by slotting mode is enclosed within on oil pipe 7, then two lobe housings 1 are fixedly connected with well head four-way, finally two lobe pressure caps 2 are coordinated to installation by bolt assembly with housing 1 upper end.
When dismounting or replacing elastic gum core 3, now by bolt assembly dismounting fixing to pressure cap 2 and housing 1 upper end, then housing 1 lower end is disassembled from well head four-way, finally take down two lobe elastic gum cores 3 and can complete dismounting, load onto elastic gum core 3 that two lobes are new and can complete the replacing of elastic gum core 3.
In the utility model, without the technical characterictic of describing, can pass through or adopt existing techniques in realizing; do not repeat them here; certainly; above-mentioned explanation is not to restriction of the present utility model; the utility model is also not limited in above-mentioned embodiment; variation, remodeling, interpolation or replacement that those of ordinary skill in the art makes in essential scope of the present utility model, also should belong to protection domain of the present utility model.
Claims (5)
1. a Novel well shutting-in device, it comprises housing, pressure cap and elastic gum core, it is characterized in that: described housing is connected by bolt assembly with pressure cap, described housing, pressure cap and elastic gum core are two lobe formula structures, described elastic gum core is positioned at the centre bore of housing and is blocked by the step of housing lower end, described pressure cap lower end is inserted in the centre bore of housing and is compressed elastic gum core, and described housing bottom is symmetrically arranged with the screwed hole corresponding with plane on well head four-way.
2. Novel well shutting-in device according to claim 1, is characterized in that: described two lobe elastic gum cores adopt slotting connected mode is connected, and the junction of described two lobe elastic gum cores is provided with groove and the boss of mutual coupling.
3. Novel well shutting-in device according to claim 1, is characterized in that: described two lobe elastic gum cores adopt slotting connected mode is connected, and the junction of described two lobe elastic gum cores is provided with mutual coupling gear shaping.
4. Novel well shutting-in device according to claim 1, is characterized in that: described pressure cap lower end and housing upper end are matched in clearance.
5. Novel well shutting-in device according to claim 1, is characterized in that: described housing upper end is provided with the counterbore mating with the bolt in bolt assembly, and described bolt upper surface is concordant with housing upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320753301.2U CN203547640U (en) | 2013-11-26 | 2013-11-26 | Novel blowout preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320753301.2U CN203547640U (en) | 2013-11-26 | 2013-11-26 | Novel blowout preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203547640U true CN203547640U (en) | 2014-04-16 |
Family
ID=50465769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320753301.2U Expired - Fee Related CN203547640U (en) | 2013-11-26 | 2013-11-26 | Novel blowout preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203547640U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111878028A (en) * | 2020-08-28 | 2020-11-03 | 中国石油天然气集团有限公司 | Inner pipe well cementation wellhead movable sealing device and method |
-
2013
- 2013-11-26 CN CN201320753301.2U patent/CN203547640U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111878028A (en) * | 2020-08-28 | 2020-11-03 | 中国石油天然气集团有限公司 | Inner pipe well cementation wellhead movable sealing device and method |
| CN111878028B (en) * | 2020-08-28 | 2022-09-16 | 中国石油天然气集团有限公司 | Inner pipe well cementation wellhead movable sealing device and method |
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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: 20140416 Termination date: 20141126 |
|
| EXPY | Termination of patent right or utility model |