CN203188949U - Safe sand draining manifold for gas drilling - Google Patents
Safe sand draining manifold for gas drilling Download PDFInfo
- Publication number
- CN203188949U CN203188949U CN 201220738345 CN201220738345U CN203188949U CN 203188949 U CN203188949 U CN 203188949U CN 201220738345 CN201220738345 CN 201220738345 CN 201220738345 U CN201220738345 U CN 201220738345U CN 203188949 U CN203188949 U CN 203188949U
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- China
- Prior art keywords
- sediment outflow
- pipeline
- gas drilling
- sand draining
- threeway
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- Expired - Fee Related
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Abstract
The utility model discloses a safe sand draining manifold for gas drilling. The safe sand draining manifold for the gas drilling comprises a through sand draining pipeline, a tee joint, a decompression pipeline and a sand draining pipeline, wherein the tee joint is respectively connected with the through sand draining pipeline, the decompression pipeline and the sand draining pipeline, and the through sand draining pipeline is connected with a well mouth rotatable control head. The safe sand draining manifold for the gas drilling can prevent the risks that equipment is damaged and casualties occur due to the fact that impact of high-pressure and high-speed fluid causes cracking of the tee joint and the sand draining pipeline at the lower portion, reduce occurrence of accidents of ground equipment for the gas drilling, and improve safety performance of gas drilling operation.
Description
Technical field
The utility model relates in the oilfield drilling engineering, and a kind of gas drilling when utilizing gas as the circulatory mediator drilling well is with safe sediment outflow manifold.
Background technology
In recent years, the gas drilling technology is improving rate of penetration, is finding with the protection oil-gas Layer, is administering aspects such as pernicious leakage, reduction drilling cost and just play an important role.In the develop rapidly of gas drilling technology, some technical problems that need to be resolved hurrily have also been exposed.Particularly when the property gas reservoir of prominent chance high pressure high yield crack, the safety issue of ground sediment outflow manifold has become the bottleneck of restriction gas drilling technical development.For head it off, " natural gas exploration and exploitation " 04 phase in 2008 discloses the design of gas drilling sediment outflow pipeline, calculate by the frictional resistance to different geometrical size sediment outflow pipeline, the emphasis comparative analysis sediment outflow length of pipeline, diameter annular space is taken the influence of rock parameter, for gas drilling sediment outflow pipeline from now on preferably provides important reference frame.
But this technology is also failed from solving the safety issue of ground sediment outflow manifold in fact.Especially do not possess the area of adopting straight-through connected mode in geographical conditions, use bend pipe, threeway to connect and have many potential safety hazards, the gentle height speed of the high producing natural gas of high pressure cutting carring can produce huge temporary impact active force and erosion to the ground sediment outflow manifold of limited chip removal ability, easily cause sediment outflow pipeline vibration even explosion, cause the risk of device damage and casualties.
Summary of the invention
The purpose of this utility model is to overcome the problems referred to above that existing ground sediment outflow manifold exists, provide a kind of gas drilling with safe sediment outflow manifold, the utility model can prevent that bottom threeway, sediment outflow pipeline are owing to the impact of high-voltage high-speed fluid causes explosion, cause the risk of device damage and casualties, reduce the generation of gas drilling ground installation accident, improved the safety of gas drilling operation.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of gas drilling is with safe sediment outflow manifold, it is characterized in that: comprise straight-through sediment outflow pipeline, threeway, blowdown line and sediment outflow pipeline, described threeway is connected with straight-through sediment outflow pipeline, blowdown line and sediment outflow pipeline respectively, and straight-through sediment outflow pipeline is connected with the well head swivel control head.
Described straight-through sediment outflow pipeline is connected with the straight-through interface of threeway, and blowdown line is connected with another straight-through interface of threeway.
Described blowdown line is connected with threeway by rupture disk.
Adopt advantage of the present utility model to be:
One, the utility model comprises straight-through sediment outflow pipeline, threeway, blowdown line and conventional sediment outflow pipeline, described threeway respectively with straight-through sediment outflow pipeline, blowdown line is connected with conventional sediment outflow pipeline, straight-through sediment outflow pipeline is connected with the well head swivel control head, adopt this structure, the high speed that annular space returns out is taken rock gas and is entered straight-through pipeline from well head, lead by threeway, enter conventional sediment outflow pipeline then and flow into grit chamber, bore when meeting high pressure high yield stratum suddenly, the high-voltage high-speed fluid that returns out can be discharged by blowdown line, prevent the bottom threeway, the sediment outflow pipeline is owing to the impact of high-voltage high-speed fluid causes explosion, cause the risk of device damage and casualties, reduce the generation of gas drilling ground installation accident, improved the safety of gas drilling operation.
Two, in the utility model, described straight-through sediment outflow pipeline is connected with the straight-through interface of threeway, blowdown line is connected with another straight-through interface of threeway, straight-through sediment outflow pipeline is connected with the threeway of blowdown line by threeway, bore when meeting high pressure high yield stratum suddenly, improve the speed that the high-voltage high-speed fluid that returns out is discharged by blowdown line, further guaranteed safety.
Three, in the utility model; described blowdown line is connected with threeway by rupture disk; adopt this structure; during normal drilling well; rupture disk can be in closure state; downhole fluid enters straight-through sediment outflow pipeline by the well head swivel control head; turn in threeway place and to enter conventional sediment outflow pipeline; flow into grit chamber then, bore suddenly when meeting high pressure high yield stratum, the high-voltage high-speed fluid that returns out will directly act on rupture disk; rupture disk breaks thereupon; the high-voltage high-speed fluid will be discharged by blowdown line, protected the safety of a whole set of sediment outflow manifold, and safety be high.
Four, the utility model has solved the safety problem that the sediment outflow manifold exists during the gas drilling, and have simple in structure, the low advantage that waits of improvement cost.
Description of drawings
Fig. 1 is the utility model structural representation
Be labeled as among the figure: 1, straight-through sediment outflow pipeline, 2, threeway, 3, rupture disk, 4, blowdown line, 5, the sediment outflow pipeline, 6, the well head swivel control head.
The specific embodiment
A kind of gas drilling is with safe sediment outflow manifold, comprise straight-through sediment outflow pipeline 1, threeway 2, blowdown line 4 and conventional sediment outflow pipeline 5, described threeway 2 is connected with straight-through sediment outflow pipeline 1, blowdown line 4 and conventional sediment outflow pipeline 5 respectively, and straight-through sediment outflow pipeline 1 is connected with well head swivel control head 6.
Preferred embodiment of the present utility model is, described straight-through sediment outflow pipeline 1 is connected with the straight-through interface of threeway 2, and blowdown line 4 is connected with another straight-through interface of threeway 2.
Further, another preferred embodiment of the present utility model is that described blowdown line 4 is connected with threeway 2 by rupture disk 3.
Operating principle of the present utility model is: sediment outflow manifold described in the utility model, pick out after straight-through sediment outflow pipeline 1 picks out the well site from well head swivel control head 6, with the passage blowdown line 4 that leads, be in closure state by threeway 2 guiding on the straight-through direction of threeway 2 during rupture disk 3 normal uses.During normal drilling well, downhole fluid enters straight-through sediment outflow pipeline 1 by well head, enters conventional sediment outflow pipeline 5 at threeway 2 place's water conservancy diversion, flows into grit chamber then.Bore when meeting high pressure high yield stratum suddenly; the high-voltage high-speed fluid that returns out will directly act on rupture disk 3; rupture disk 3 breaks thereupon; the high-voltage high-speed fluid will be discharged by blowdown line 4; prevent that bottom threeway, sediment outflow pipeline are owing to the impact of high-voltage high-speed fluid causes explosion; cause the risk of device damage and casualties, thereby protected the safety of a whole set of sediment outflow manifold.
Claims (3)
1. a gas drilling is with safe sediment outflow manifold, it is characterized in that: comprise straight-through sediment outflow pipeline (1), threeway (2), blowdown line (4) and sediment outflow pipeline (5), described threeway (2) is connected with straight-through sediment outflow pipeline (1), blowdown line (4) and sediment outflow pipeline (5) respectively, and straight-through sediment outflow pipeline (1) is connected with well head swivel control head (6).
2. gas drilling according to claim 1 is with safe sediment outflow manifold, and it is characterized in that: described straight-through sediment outflow pipeline (1) is connected with the straight-through interface of threeway (2), and blowdown line (4) is connected with another straight-through interface of threeway (2).
3. gas drilling according to claim 2 is characterized in that with safe sediment outflow manifold: described blowdown line (4) is connected with threeway (2) by rupture disk (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220738345 CN203188949U (en) | 2012-12-28 | 2012-12-28 | Safe sand draining manifold for gas drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220738345 CN203188949U (en) | 2012-12-28 | 2012-12-28 | Safe sand draining manifold for gas drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203188949U true CN203188949U (en) | 2013-09-11 |
Family
ID=49105815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220738345 Expired - Fee Related CN203188949U (en) | 2012-12-28 | 2012-12-28 | Safe sand draining manifold for gas drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203188949U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382103A (en) * | 2016-11-21 | 2017-02-08 | 中国石油集团川庆钻探工程有限公司 | Gas drilling pipe collecting system capable of realizing universal adjustment of angle |
| CN106437579A (en) * | 2016-11-21 | 2017-02-22 | 中国石油集团川庆钻探工程有限公司 | Radial azimuth stepless adjustment for gas drilling manifold |
| CN110485955A (en) * | 2019-08-30 | 2019-11-22 | 中国石油集团川庆钻探工程有限公司 | A kind of drilling well-head suction row's of helping manifold system |
-
2012
- 2012-12-28 CN CN 201220738345 patent/CN203188949U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382103A (en) * | 2016-11-21 | 2017-02-08 | 中国石油集团川庆钻探工程有限公司 | Gas drilling pipe collecting system capable of realizing universal adjustment of angle |
| CN106437579A (en) * | 2016-11-21 | 2017-02-22 | 中国石油集团川庆钻探工程有限公司 | Radial azimuth stepless adjustment for gas drilling manifold |
| CN106437579B (en) * | 2016-11-21 | 2019-05-10 | 中国石油集团川庆钻探工程有限公司 | Gas drilling manifold radial orientation angle stepless angle adjusting mechanism |
| CN110485955A (en) * | 2019-08-30 | 2019-11-22 | 中国石油集团川庆钻探工程有限公司 | A kind of drilling well-head suction row's of helping manifold system |
| CN110485955B (en) * | 2019-08-30 | 2021-05-04 | 中国石油集团川庆钻探工程有限公司 | Well drilling well head suction helps row union system |
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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: 20130911 Termination date: 20211228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |