CN203383759U - Decompression and manifold device for foam drilling - Google Patents
Decompression and manifold device for foam drilling Download PDFInfo
- Publication number
- CN203383759U CN203383759U CN201320337790.3U CN201320337790U CN203383759U CN 203383759 U CN203383759 U CN 203383759U CN 201320337790 U CN201320337790 U CN 201320337790U CN 203383759 U CN203383759 U CN 203383759U
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- valve
- decompression
- manifold
- pipe
- gas
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Abstract
The utility model relates to the technical field of foam drilling decompression devices and particularly relates to a decompression and manifold device for a foam drilling. The decompression and manifold device for the foam drilling comprises a gas-liquid conveying pipe, a one-way valve, a main switch valve, a needle valve, a vertical pipe decompression pipe and a manifold decompression pipe; a right end conveying inlet and a left end conveying outlet are formed in the gas-liquid conveying pipe; the main switch valve, the one-way valve and the needle valve are sequentially installed on the gas-liquid conveying pipe from the conveying inlet and the conveying outlet; the vertical pipe decompression pipe is arranged on the gas-liquid conveying pipe which is arranged between the one-way valve and the needle valve in a communication mode; a vertical pipe valve is fixedly installed on the vertical pipe decompression pipe. The decompression and manifold device for the foam drilling has the advantages of being reasonable and compact in structure and convenient to use; enabling part of pressure inside drilling vertical pipes to be released due to the needle valve, enabling opening and decompression of the vertical pipe valve to be convenient, improving reliability of decompression and being high in security; achieving remote automatic controlled decompression due to the pneumatic main switch valve, the pneumatic vertical pipe valve and the pneumatic manifold valve, improving the decompression efficiency and shortening the operating time.
Description
Technical field
the utility model relates to foam drilling pressure release manifold device technique field, is a kind of foam drilling pressure release manifold apparatus.
Background technology
the pressure release manifold is one of requisite equipment of foam drilling, is the part of ground injecting gas manifold, is present in the pressure of standpipe and underground drill stem, manifold of ground for release; Before foam drilling makes up a joint or pulls out of hole operation, at first need stop to gas injection in well and discharge the pressure be present in standpipe and underground drill stem, manifold of ground by the pressure release manifold, can dismantle kelly bar and carry out lower step operation.But conventional pressure release manifold, easily appearance is too high because of the standpipe internal pressure, the situation that causes relief valve to open, poor reliability; Can't complete the release operation for a long time, exist huge potential safety hazard simultaneously.
Summary of the invention
the utility model provides a kind of foam drilling pressure release manifold apparatus, has overcome the deficiency of above-mentioned prior art, and it can effectively solve conventional pressure release manifold, and pressure release is unreliable, and the activity duration is long, and the problem that has potential safety hazard.
the technical solution of the utility model realizes by following measures: a kind of foam drilling pressure release manifold apparatus comprises gas-liquid delivery pipe, one way valve, main switch valve, needle valve, standpipe relief tube and manifold pressure relief pipe; The conveying import of right-hand member and the conveying outlet of left end are arranged respectively on gas-liquid delivery pipe, on gas-liquid delivery pipe, by carrying import extremely to carry to export, main switch valve, one way valve and needle valve are installed successively; Be communicated with the standpipe relief tube on the gas-liquid delivery pipe between one way valve and needle valve, be installed with the standpipe valve on the standpipe relief tube; Be communicated with the manifold pressure relief pipe on the gas-liquid delivery pipe of carrying between import and main switch valve, be installed with the manifold valve on the manifold pressure relief pipe.
below the further optimization and/or improvements to above-mentioned utility model technical scheme:
above-mentioned main switch valve adopts pneumatic main switch valve.
above-mentioned standpipe valve adopts pneumatic standpipe valve.
above-mentioned manifold valve adopts pneumatic manifold valve.
the utility model reasonable and compact in structure, easy to use; Can lay down the partial pressure in drilling riser pipe by needle valve, be convenient to the unlatching pressure release of standpipe valve, improve the reliability of pressure release manifold apparatus; Adopt pneumatic main switch valve, pneumatic standpipe valve and pneumatic pipe manifold valve door to realize remote auto control pressure release simultaneously, improved pressure release efficiency, shorten the activity duration.
The accompanying drawing explanation
the main TV structure schematic diagram that accompanying drawing 1 is the utility model most preferred embodiment.
coding in accompanying drawing is respectively: 1 is gas-liquid delivery pipe, and 2 is the main switch valve, and 3 is one way valve, and 4 is needle valve, and 5 is the standpipe relief tube, and 6 is the standpipe valve, and 7 is the manifold pressure relief pipe, and 8 is the manifold valve.
The specific embodiment
the utility model is not subject to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.
in the utility model, for convenience of description, the description of the relative position relation of each parts is all to be described according to the Butut mode of Figure of description 1, as: the position relationship of upper and lower, left and right etc. is to determine according to the Butut direction of Figure of description 1.
below in conjunction with embodiment and accompanying drawing, the utility model is further described:
as shown in Figure 1, this foam drilling pressure release manifold apparatus comprises gas-liquid delivery pipe 1, one way valve 3, main switch valve 2, needle valve 4, standpipe relief tube 5 and manifold pressure relief pipe 7; The conveying import of right-hand member and the conveying outlet of left end are arranged respectively on gas-liquid delivery pipe 1, on gas-liquid delivery pipe 1, by carrying import extremely to carry to export, main switch valve 2, one way valve 3 and needle valve 4 are installed successively; Be communicated with standpipe relief tube 5 on the gas-liquid delivery pipe 1 between one way valve 3 and needle valve 4, be installed with standpipe valve 6 on standpipe relief tube 5; Be communicated with manifold pressure relief pipe 7 on the gas-liquid delivery pipe 1 of carrying between import and main switch valve 2, be installed with manifold valve 8 on manifold pressure relief pipe 7.The conveying outlet of gas-liquid delivery pipe 1 communicates with drilling riser pipe, is carrying out injecting the process that fluid is implemented foam drilling in well, and main switch valve 2 is opened, and standpipe valve 6 and manifold valve 8 are closed, and aerated fluid enters in drilling riser pipe by gas-liquid delivery pipe 1; When foam drilling makes up a joint or pull out of hole, can close main switch valve 2 by opening successively manifold valve 8, then open standpipe valve 6, standpipe and manifold are carried out to pressure release; In this process, when the pressure in drilling riser pipe can't be opened 6 pressure release of standpipe valve greatly, after can first by unlatching needle valve 4, laying down the riser interiors partial pressure, then open 6 pressure releases of standpipe valve; Reduction causes potential safety hazard that can't release because standpipe pressure is excessive; What needle valve 4 was relief valve is a kind of, and it can tolerate larger pressure, also can can't open release in the situation that standpipe valve 6 damages, and by needle valve 4, completes the standpipe pressure release, can improve the reliability of pressure release, safe.
can according to actual needs, above-mentioned foam drilling pressure release manifold apparatus be made further optimization and/or improvements:
as shown in Figure 1, main switch valve 2 can adopt pneumatic main switch ball valve valve, and standpipe valve 6 adopts pneumatic standpipe ball valve valve, and manifold valve 8 adopts pneumatic manifold ball valve door.Adopt pneumatic main switch valve, pneumatic standpipe valve and pneumatic pipe manifold valve door to realize remote auto control pressure release, improved pressure release efficiency, shorten the activity duration.
above technical characterictic has formed most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease according to actual needs non-essential technical characterictic, meets the demand of different situations.
Claims (5)
1. a foam drilling pressure release manifold apparatus, is characterized in that comprising gas-liquid delivery pipe, one way valve, main switch valve, needle valve, standpipe relief tube and manifold pressure relief pipe; The conveying import of right-hand member and the conveying outlet of left end are arranged respectively on gas-liquid delivery pipe, on gas-liquid delivery pipe, by carrying import extremely to carry to export, main switch valve, one way valve and needle valve are installed successively; Be communicated with the standpipe relief tube on the gas-liquid delivery pipe between one way valve and needle valve, be installed with the standpipe valve on the standpipe relief tube; Be communicated with the manifold pressure relief pipe on the gas-liquid delivery pipe of carrying between import and main switch valve, be installed with the manifold valve on the manifold pressure relief pipe.
2. foam drilling pressure release manifold apparatus according to claim 1, is characterized in that the main switch valve adopts pneumatic main switch valve.
3. foam drilling pressure release manifold apparatus according to claim 1 and 2, is characterized in that the standpipe valve adopts pneumatic standpipe valve.
4. foam drilling pressure release manifold apparatus according to claim 1 and 2, is characterized in that the manifold valve adopts pneumatic manifold valve.
5. foam drilling pressure release manifold apparatus according to claim 3, is characterized in that the manifold valve adopts pneumatic manifold valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320337790.3U CN203383759U (en) | 2013-06-13 | 2013-06-13 | Decompression and manifold device for foam drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320337790.3U CN203383759U (en) | 2013-06-13 | 2013-06-13 | Decompression and manifold device for foam drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203383759U true CN203383759U (en) | 2014-01-08 |
Family
ID=49872268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320337790.3U Expired - Fee Related CN203383759U (en) | 2013-06-13 | 2013-06-13 | Decompression and manifold device for foam drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203383759U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458163A (en) * | 2018-12-27 | 2019-03-12 | 中国石油集团西部钻探工程有限公司 | Underbalance high-pressure gas injection pressure release manifold apparatus |
-
2013
- 2013-06-13 CN CN201320337790.3U patent/CN203383759U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458163A (en) * | 2018-12-27 | 2019-03-12 | 中国石油集团西部钻探工程有限公司 | Underbalance high-pressure gas injection pressure release manifold apparatus |
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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: 20140108 Termination date: 20210613 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |