CN2874018Y - Well head back pressure controller for petroleum production - Google Patents
Well head back pressure controller for petroleum production Download PDFInfo
- Publication number
- CN2874018Y CN2874018Y CN 200620019106 CN200620019106U CN2874018Y CN 2874018 Y CN2874018 Y CN 2874018Y CN 200620019106 CN200620019106 CN 200620019106 CN 200620019106 U CN200620019106 U CN 200620019106U CN 2874018 Y CN2874018 Y CN 2874018Y
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- Prior art keywords
- crude
- oil
- back pressure
- valve
- screw
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Abstract
The utility model relates to a back-pressure controller at an extraction wellhead associating with the technology of petroleum extraction, which comprises a crude-oil outlet valve 1, a crude-oil cut-off valve 2, a single-screw pump 3, a crude-oil inlet valve 4, a transmission box 5, a motor 6, a frequency inversion control box 7, a pressure sensor 8, and a back pressure manometer 9. The single-screw pump 3, the transmission box 5, the motor 6, and the frequency inversion control box 7 are connected in sequence. On a pipe, the crude-oil outlet valve 1, the crude-oil cut-off valve 2, the crude-oil inlet valve 4, the pressure sensor 8 and the back pressure manometer 9 are arranged, which efficiently reduces and controls in certain range the back pressure at a wellhead, guarantees certain efficiency of the oil pump, and enhances output of crude oil.
Description
Technical field
The utility model relates to oil exploitation technology, specifically, is a kind of oil exploitation wellhead back pressure control device of controlling the oil well head back pressure.
Background technology
In the oil exploitation process, oil generally uses self energy to petroleum transferring station again from the well head to the measuring station.This part energy for mechanical oil recovery, comes from the energy that oil well pump is given oil.Be embodied in the pressure of petroleum pipeline, abbreviate " back pressure " as at well head.Its essence is the pressure loss in the oil transportation process.Pipeline is thin, circuit is long, oil viscosity is high, and back pressure is big; Pipeline is thick, circuit is short, oil viscosity is low, and back pressure is little.
In the oil development design, be no more than 0.5Mpa by back pressure and select pipeline.But after an exploitation in period, oil well often changes.Commonly well water increases, and strengthens and adopts liquid measure, and intrinsic caliber is just incompatible.The pressure loss of pipeline increases, and causes back pressure to increase.And back pressure increases, and mechanical oil recovery oil well pump wastage is increased, and oil well pump efficient is reduced, and has reduced oil well output.
The utility model can make wellhead back pressure control within the specific limits, improves oil well pump efficient effectively, increases oil production rate.
Summary of the invention
The purpose of this utility model is to provide a cover to reduce wellhead back pressure effectively, makes its control within the specific limits, guarantees the certain efficient of oil well pump, improves the oil exploitation wellhead back pressure control device of crude output.
The utility model is achieved in that and comprises crude exports valve 1, crude oil block valve 2, single-screw (single screw) pump 3, crude oil import valve 4, gearbox 5, motor 6, variable frequency control case 7, pressure sensor 8, back pressure table 9, single-screw (single screw) pump 3, gearbox 5, motor 6, variable frequency control case 7 connect successively, are respectively arranged with crude exports valve 1, crude oil block valve 2, crude oil import valve 4, pressure sensor 8, back pressure table 9 on pipeline.
The utility model also adopts following technical scheme:
The front portion of motor 6 is provided with gearbox 5, drives single-screw (single screw) pump 3 again.
Advantage of the present utility model is: reduce wellhead back pressure effectively, make its control within the specific limits, guarantee the certain efficient of oil well pump, improve crude output.
Description of drawings
Accompanying drawing is an oil exploitation wellhead back pressure control device schematic diagram.
The specific embodiment
As shown in the figure, comprising: crude exports valve 1, crude oil block valve 2, single-screw (single screw) pump 3, crude oil import valve 4, gearbox 5, motor 6, variable frequency control case 7, pressure sensor 8, back pressure table 9.
Find out the pressure sensor 8 of back pressure, the frequency converter in the control variable frequency control case, inverter control motor 6 accelerates its rotating speed or slack-off, makes single-screw (single screw) pump 3 discharge capacities become big or diminishes, thereby make back pressure control within the specific limits.
Gearbox 5 is set before the motor 6, drives single-screw (single screw) pump 3 again, do that like this capacity of motor 6 is greatly reduced, favourable conserve energy.
Open crude exports valve 1, close crude oil block valve 2, open crude oil import valve 4 and make crude oil enter single-screw (single screw) pump 3.The back pressure value that records from pressure sensor 8 passes in the variable frequency control case 7, according to the setting pressure size, frequency converter frequency is changed, make single-screw (single screw) pump 3 rotating speeds or become big or diminish, the discharge capacity of single-screw (single screw) pump 3 or become big or diminish makes back pressure control within the specific limits.
Claims (2)
1, oil exploitation wellhead back pressure control device, comprise crude exports valve (1), crude oil block valve (2), single-screw (single screw) pump (3), crude oil import valve (4), gearbox (5), motor (6), variable frequency control case (7), pressure sensor (8), back pressure table (9), it is characterized in that: single-screw (single screw) pump (3), gearbox (5), motor (6), variable frequency control case (7) connect successively, are respectively arranged with crude exports valve (1), crude oil block valve (2), crude oil import valve (4), pressure sensor (8), back pressure table (9) on pipeline.
2, oil exploitation wellhead back pressure control device according to claim 1, it is characterized in that: the front portion of motor (6) is provided with gearbox (5), drives single-screw (single screw) pump (3) again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620019106 CN2874018Y (en) | 2006-04-04 | 2006-04-04 | Well head back pressure controller for petroleum production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620019106 CN2874018Y (en) | 2006-04-04 | 2006-04-04 | Well head back pressure controller for petroleum production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2874018Y true CN2874018Y (en) | 2007-02-28 |
Family
ID=37780615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620019106 Expired - Fee Related CN2874018Y (en) | 2006-04-04 | 2006-04-04 | Well head back pressure controller for petroleum production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2874018Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101883910A (en) * | 2007-10-16 | 2010-11-10 | 弗米尔制造公司 | The equipment and the method that are used for the power control of horizontal directional drilling |
| CN105252021A (en) * | 2015-11-11 | 2016-01-20 | 佛山市宏达精工机械设备有限公司 | Feeder intelligent frequency converting control device |
| CN107191154A (en) * | 2016-03-15 | 2017-09-22 | 中国石油化工股份有限公司 | Wellhead back pressure regulates and controls method and apparatus |
| CN113236215A (en) * | 2021-06-22 | 2021-08-10 | 新疆赢华石油技术服务有限公司 | Single-well pressure-reducing and yield-increasing device and method thereof |
| CN114427530A (en) * | 2020-09-22 | 2022-05-03 | 中国石油化工股份有限公司 | Device and method for reducing back pressure in cooperative work with mechanical oil production well |
| CN114542024A (en) * | 2020-11-10 | 2022-05-27 | 中国石油天然气股份有限公司 | Oil production system |
| CN115012841A (en) * | 2022-06-29 | 2022-09-06 | 山东龙兴石油设备有限公司 | Oil development well head back pressure control device |
-
2006
- 2006-04-04 CN CN 200620019106 patent/CN2874018Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101883910A (en) * | 2007-10-16 | 2010-11-10 | 弗米尔制造公司 | The equipment and the method that are used for the power control of horizontal directional drilling |
| CN101883910B (en) * | 2007-10-16 | 2013-11-06 | 弗米尔制造公司 | Devices and methods for power control in horizontal directional drilling |
| CN105252021A (en) * | 2015-11-11 | 2016-01-20 | 佛山市宏达精工机械设备有限公司 | Feeder intelligent frequency converting control device |
| CN107191154A (en) * | 2016-03-15 | 2017-09-22 | 中国石油化工股份有限公司 | Wellhead back pressure regulates and controls method and apparatus |
| CN114427530A (en) * | 2020-09-22 | 2022-05-03 | 中国石油化工股份有限公司 | Device and method for reducing back pressure in cooperative work with mechanical oil production well |
| CN114542024A (en) * | 2020-11-10 | 2022-05-27 | 中国石油天然气股份有限公司 | Oil production system |
| CN113236215A (en) * | 2021-06-22 | 2021-08-10 | 新疆赢华石油技术服务有限公司 | Single-well pressure-reducing and yield-increasing device and method thereof |
| CN115012841A (en) * | 2022-06-29 | 2022-09-06 | 山东龙兴石油设备有限公司 | Oil development well head back pressure control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070228 |