CN203008855U - Three-stage choke blowout manifold - Google Patents
Three-stage choke blowout manifold Download PDFInfo
- Publication number
- CN203008855U CN203008855U CN 201320017189 CN201320017189U CN203008855U CN 203008855 U CN203008855 U CN 203008855U CN 201320017189 CN201320017189 CN 201320017189 CN 201320017189 U CN201320017189 U CN 201320017189U CN 203008855 U CN203008855 U CN 203008855U
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- China
- Prior art keywords
- valves
- manifold
- parallel slide
- choke
- pressure
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- 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 - Lifetime
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Abstract
The utility model discloses a three-stage choke blowout manifold which solves the problems that the choke manifold is pierced to leak and abraded easily. The manifold comprises two five-way unions, wherein two oil nipple channels and a direct pipeline are in flanged connection between the two five-way unions; components and connecting types of the two oil nipple channels are the same; a parallel slide valve is arranged on the direct pipeline; two parallel slide valves are arranged on each oil nipple channel; three fixed choke valves are arranged between every two parallel slide valves; and a pressure gauge and a sensor interface flange are arranged between every two fixed choke valves. After blowout liquid of the manifold is subjected to choke pressure reduction for three times, the pressure is reduced greatly, and the purposes of reducing pierced leakage and abrasion are achieved. With the adoption of the two oil nipple channels, the requirement of changing an oil nipple without shutting down a well is met.
Description
Technical field
The utility model relates to Oil/gas Well formation testing field, and concrete is a kind of post-fracturing reducing pressure by regulating flow manifold.
Background technology
Existing choke manifold, its weak point, the one, restriction effect is relatively poor, and when the fine and close well in pressure break or stratum was pressed rear open flow on a large scale, fracturing sand sprays in well under immense pressure drives, and causes choke manifold to be polished, puncture by sand, and was fragile.The 2nd, changing oil nozzle needs surface shut-in, manually changes oil nozzle, and the replacing time is long, affects construction speed.The 3rd, ground flow is set up separately straight-through pipeline, and trouble is arranged in the job site, has security risk.The 4th, realize that before and after throttling the monitor force data are complicated constantly, need to connect separately the sensor outlet.
Summary of the invention
The purpose of this utility model is to provide a kind of reducing pressure by regulating flow control blowout manifold, and this choke manifold can be realized step pressure reducing, effectively avoids manifold to be stung the Lou generation of phenomenon, and can be in the situation that the replaceable oil nozzle of responding curve of well, and every grade of oil nozzle pressure can be realized automatic monitoring.
For realizing above-mentioned utility model purpose, the technical solution adopted in the utility model is: a kind of three grades of throttling control blowout manifolds, comprise two five-ways, flange connects two oil nozzle passages and a direct piping between two five-ways, article two, the parts of oil nozzle passage composition and connected mode are identical, another two ports of five-way, one of them flange connects female fitting or convex joint, and it two arranges pressure meter and pressure sensor interface flange; On described direct piping, parallel slide valve is set; Two parallel slide valves are set on described oil nozzle passage, three fixed restrictive valves are set between two parallel slide valves, between every two fixed restrictive valves, pressure meter and sensor interface flange are set.
The beneficial effects of the utility model: thorn leaks and the reason of wearing and tearing is analyzed by choke manifold is occured, find that its main cause is that after pressure break, the open flow hydraulic coupling is excessive, cause manifold that thorn occurs after band gravel successively hits same position and leak and wear phenomenon.Three grades of throttling control blowout manifolds of the present utility model, open flow fluid reduce pressure after through three throttling step-downs greatly, have reached to reduce that thorn leaks, the purpose of wearing and tearing.Three grades of throttling control blowout manifolds have two oil nozzle passages, use an oil nozzle passage during open flow, when needs are changed oil nozzle, close former passage after complete changing on another oil nozzle passage, open new oil nozzle passage and can realize the responding curve of well mouth of changing oil.Direct piping can replace the straight-through manifold of former flow process.In the middle of triode converges, all with pressure meter and pressure sensor interface, the pressure meter of can plugging into is monitored open flow pressure, provides technical support for changing oil nozzle.
Description of drawings
Fig. 1 is the structural representation of three grades of throttling control blowout manifolds of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described:
by shown in Figure 1: a kind of three grades of throttling control blowout manifolds, comprise the first five-way 2 and the second five-way 11, flange connects two oil nozzle passages and a direct piping between two five-ways, article two, the parts of oil nozzle passage composition and connected mode are identical, another two ports of the first five-way 2, one of them flange connects convex joint 1, and it two arranges pressure meter and pressure sensor interface flange 3, parallel slide valve 14 is set on described direct piping, described oil nozzle passage, comprise two parallel slide valves, two pressure meters and sensor interface flange and three fixed restrictive valves, wherein an end of the first parallel slide valve 4 is connected with the first five-way 2 flanges, other end flange connects the first fixed restrictive valve 5, the other end flange of the first fixed restrictive valve 5 connects the first pressure meter and sensor interface flange 6, the other end flange of the first pressure meter and sensor interface flange 6 connects the second fixed restrictive valve 7, the other end flange of the second fixed restrictive valve 7 connects the second pressure meter and sensor interface flange 8, the other end flange of the second pressure meter and sensor interface flange 8 connects the 3rd fixed restrictive valve 9, the other end flange of the 3rd fixed restrictive valve 9 connects the second parallel slide valve 10, the other end of the second parallel slide valve 10 is connected with the second five-way 11 flanges, two ports of all the other of the second five-way 11, one of them arranges pressure meter and pressure gauge sensor flange 12, its two flange connects female fitting 13.
Claims (1)
1. three grades of throttling control blowout manifolds, comprise two five-ways, it is characterized in that: flange connects two oil nozzle passages and a direct piping between two five-ways, article two, the parts of oil nozzle passage composition and connected mode are identical, another two ports of five-way, one of them flange connects female fitting or convex joint, and it two arranges pressure meter and pressure sensor interface flange; On described direct piping, parallel slide valve is set; Two parallel slide valves are set on described oil nozzle passage, three fixed restrictive valves are set between two parallel slide valves, between every two fixed restrictive valves, pressure meter and sensor interface flange are set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320017189 CN203008855U (en) | 2013-01-14 | 2013-01-14 | Three-stage choke blowout manifold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320017189 CN203008855U (en) | 2013-01-14 | 2013-01-14 | Three-stage choke blowout manifold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203008855U true CN203008855U (en) | 2013-06-19 |
Family
ID=48600462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320017189 Expired - Lifetime CN203008855U (en) | 2013-01-14 | 2013-01-14 | Three-stage choke blowout manifold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203008855U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758481A (en) * | 2014-01-20 | 2014-04-30 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Hierarchical-depressurizing oil nozzle manifold |
| CN116591644A (en) * | 2023-07-17 | 2023-08-15 | 大庆市天德忠石油科技有限公司 | Hydraulic sand blasting perforation choke manifold |
-
2013
- 2013-01-14 CN CN 201320017189 patent/CN203008855U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758481A (en) * | 2014-01-20 | 2014-04-30 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Hierarchical-depressurizing oil nozzle manifold |
| CN116591644A (en) * | 2023-07-17 | 2023-08-15 | 大庆市天德忠石油科技有限公司 | Hydraulic sand blasting perforation choke manifold |
| CN116591644B (en) * | 2023-07-17 | 2023-09-19 | 大庆市天德忠石油科技有限公司 | Hydraulic sand blasting perforation choke manifold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130619 |