CN2841942Y - Well washing apparatus - Google Patents
Well washing apparatus Download PDFInfo
- Publication number
- CN2841942Y CN2841942Y CN 200520084858 CN200520084858U CN2841942Y CN 2841942 Y CN2841942 Y CN 2841942Y CN 200520084858 CN200520084858 CN 200520084858 CN 200520084858 U CN200520084858 U CN 200520084858U CN 2841942 Y CN2841942 Y CN 2841942Y
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- valve
- foam maker
- pressure transmitter
- water inlet
- exhaust
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- Expired - Fee Related
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Abstract
The utility model relates to the well washing apparatus that a kind of oil field flushing operation is used.Its technical scheme comprises air compressor unit, foam maker, between the gas outlet of air compressor unit and foam maker, be connected with exhaust line, on exhaust line, be connected with stop valve and flap valve, foam maker is provided with a water inlet pipe that is connected with plunger displacement pump, on water inlet pipe, be connected with plug valve, be connected with the drain pipe that is connected with the head valve group at the output of foam maker.On drain pipe, be connected with flow meter, densometer and pressure transmitter, on exhaust line, be connected with reducing valve, exhaust-valve, pressure emptying switch and pressure transmitter, be connected with pressure transmitter on water inlet pipe, flow meter, densometer, pressure transmitter, exhaust-valve, pressure emptying switch are connected with the PLC controller respectively.PLC controller and power switch device are in switch board.Because device of the present utility model and aerated fluid combine as the flushing fluid in the sand washing process, have improved the oil field flushing operating efficiency, have made things convenient for plant maintenance and operation.
Description
One, technical field: the utility model relates to the well washing apparatus that a kind of oil field flushing operation is used.
Two, background technology: the oil field is owing to exploit for a long time, and formation pressure reduces a lot, and pressure coefficient is reduced to also lower than the equivalent pressure coefficient of water, use water flushing in this case, water can enter oil reservoir in a large number, the efficient of well-flushing, sand washing is reduced, and the stratum also has been subjected to serious pollution.Water enters fluid flow and the flow velocity that the low pressure layer returns on making in the pit shaft to be reduced, and coarse sand particles can not be defined as ground, inject when serious that water can all enter oil reservoir and can not on return, cause the well-flushing failure.The consequence that causes be oil reservoir by severe contamination, oil well output reduces, the oil well maintenance interval shortens, the oil well recondition expense increases.Therefore, water base well-flushing, the kill-job with routine is inappropriate in low pressure well.
Three, summary of the invention: the purpose of this utility model is exactly the defective that exists at prior art, provides a kind of aerated fluid that utilizes as the flushing fluid well washing apparatus in the sand washing process.
Its technical scheme comprises air compressor unit, foam maker, between the gas outlet of air compressor unit and foam maker, be connected with exhaust line, on exhaust line, be connected with stop valve and flap valve, foam maker is provided with a water inlet pipe that is connected with plunger displacement pump, on water inlet pipe, be connected with plug valve, be connected with the drain pipe that is connected with the head valve group at the output of foam maker.On drain pipe, be connected with flow meter, densometer and pressure transmitter, on exhaust line, be connected with reducing valve, exhaust-valve, pressure emptying switch and pressure transmitter, be connected with pressure transmitter on water inlet pipe, flow meter, densometer, pressure transmitter, exhaust-valve, pressure emptying switch are connected with the PLC controller respectively.PLC controller and power switch device are in switch board.
Because device of the present utility model and aerated fluid combine as the flushing fluid in the sand washing process, have improved the oil field flushing operating efficiency, have made things convenient for plant maintenance and operation.
Four, description of drawings:
Accompanying drawing is the structure connection configuration figure of a kind of well head embodiment of the present utility model.
Five, specific embodiment:
With reference to accompanying drawing, between the gas outlet of air compressor unit 1 and foam maker 9, be connected with exhaust line, on exhaust line, be connected with stop valve 3 and flap valve 8, reducing valve 4, exhaust-valve 6, pressure emptying switch 7 and pressure transmitter 5.Foam maker 9 is provided with a water inlet pipe that is connected with plunger displacement pump 13, is connected with plug valve 12, pressure transmitter 5 on water inlet pipe.Drain pipe in that the output of foam maker 9 is connected with head valve group 14 is connected with flow meter 10, densometer 11 and pressure transmitter 5 on drain pipe.Flow meter 10, densometer 11, pressure transmitter 5, exhaust-valve 6, pressure emptying switch 7 are connected with PLC controller 2 respectively.PLC controller 2 and power switch device are in switch board.
The output of foam maker 9 is connected with head valve group 14 in the actual use, and flushing fluid enters the down-hole by oil pipe 15, returns ground grit chamber 17 by sleeve pipe 16 then, is recovered to water tank 18 through post precipitation.
The control of device by various pressure transmission device 5 input data, to the data computing, is controlled each parameter according to programming within error range by PLC controller 2 (being the control of single-chip microcomputer or industrial computer).Exceed error range,, adjust the operation of each frequency converter or gate, adjust gas-water ratio, meet the demands by the computer output order.
Claims (3)
1, well washing apparatus, it is characterized in that comprising air compressor unit, foam maker, between the gas outlet of air compressor unit and foam maker, be connected with exhaust line, on exhaust line, be connected with stop valve and flap valve, foam maker is provided with a water inlet pipe that is connected with plunger displacement pump, on water inlet pipe, be connected with plug valve, be connected to the drain pipe that is connected with the head valve group in the output disconnection of foam maker.
2, well washing apparatus according to claim 1, it is characterized in that: on drain pipe, be connected with flow meter, densometer and pressure transmitter, on exhaust line, be connected with reducing valve, exhaust-valve, pressure emptying switch and pressure transmitter, be connected with pressure transmitter on water inlet pipe, flow meter, densometer, pressure transmitter, exhaust-valve, pressure emptying switch are connected with the PLC controller respectively.
3, well washing apparatus according to claim 1 is characterized in that: PLC controller and power switch device are in switch board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520084858 CN2841942Y (en) | 2005-08-03 | 2005-08-03 | Well washing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520084858 CN2841942Y (en) | 2005-08-03 | 2005-08-03 | Well washing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2841942Y true CN2841942Y (en) | 2006-11-29 |
Family
ID=37445828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520084858 Expired - Fee Related CN2841942Y (en) | 2005-08-03 | 2005-08-03 | Well washing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2841942Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100453889C (en) * | 2007-02-09 | 2009-01-21 | 蔺新良 | Oil, water and gas zero-discharging pipe sealing and emptying transmission system |
| CN106223877A (en) * | 2016-08-12 | 2016-12-14 | 中国石油大学(华东) | The automatic well washing apparatus of coal bed gas well |
| CN114210628A (en) * | 2021-12-07 | 2022-03-22 | 浙江浙能嘉华发电有限公司 | Intelligent flushing device for parallel pressure-taking pipelines and control method thereof |
-
2005
- 2005-08-03 CN CN 200520084858 patent/CN2841942Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100453889C (en) * | 2007-02-09 | 2009-01-21 | 蔺新良 | Oil, water and gas zero-discharging pipe sealing and emptying transmission system |
| CN106223877A (en) * | 2016-08-12 | 2016-12-14 | 中国石油大学(华东) | The automatic well washing apparatus of coal bed gas well |
| CN106223877B (en) * | 2016-08-12 | 2018-08-21 | 中国石油大学(华东) | The automatic well washing apparatus of coal bed gas well |
| CN114210628A (en) * | 2021-12-07 | 2022-03-22 | 浙江浙能嘉华发电有限公司 | Intelligent flushing device for parallel pressure-taking pipelines and control method thereof |
| CN114210628B (en) * | 2021-12-07 | 2023-07-25 | 浙江浙能嘉华发电有限公司 | Control method of intelligent flushing device of parallel pressure-taking pipeline |
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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: 20061129 Termination date: 20110803 |