CN1439810A - Clean hole screw rod pump against sand block - Google Patents
Clean hole screw rod pump against sand block Download PDFInfo
- Publication number
- CN1439810A CN1439810A CN 03109917 CN03109917A CN1439810A CN 1439810 A CN1439810 A CN 1439810A CN 03109917 CN03109917 CN 03109917 CN 03109917 A CN03109917 A CN 03109917A CN 1439810 A CN1439810 A CN 1439810A
- Authority
- CN
- China
- Prior art keywords
- sand
- well
- precipitating
- screw
- pump
- Prior art date
- 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.)
- Granted
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Abstract
A screw-rod pump without sand jam and able to be used for washing well is composed of sand depositing barrel, screw-rod pump, pressure test valve, sand deposition jointer, and well washing valve. When petroleum is recovering, the petroleum comes in it through the side of sand deposition jointer and then pumped out by screw-rod pump. When it is stopped, the sand can be deposited in the tail pipe under pump. When the well is washed, the water flows through sand depositing barrel, well washing valve, annular space between sand depositing barrel and screw-rod pump, and oil pipe to return back to ground.
Description
One, technical field
The present invention is a kind of sand control card washing well screw pump that oil field machinery oil is used.
Two, background technique
Shake out screw pump oil production well after stopping well for some reason, and sand sinks, and buries dead screw rod and sucker rod, causes stuck screw rod, can not drive a well again, needs operation to propose to be lowered to new screw pump again behind whole extracting device of oil and just can resume production, and causes very big economic loss.The on-the-spot screw pump that uses all is solid, and the cored screw pump is difficult to processing, so, descended the oil well behind the screw pump can not well-flushing, the screw pump oil production well ordinary production time that makes is short, needs frequent operation maintenance, and the oil recovery well benefit is low, the maintenance cost height.
Three, summary of the invention
The objective of the invention is to design a kind of sand control card washing well screw pump, make it when sand output well uses, stop well for some reason after sand sink, do not bury screw rod and sucker rod, can also satisfy the requirement of well-flushing, increase the oil well operating time, reduce operating cost.
The object of the present invention is achieved like this: its sand-precipitating tube, screw pump, pressure testing valve, sand-precipitating joint, flushing valve are formed.Screw pump is in the sand-precipitating tube, and the screw pump bottom connects with the pressure testing valve, and pressure testing valve bottom connects with sand-precipitating joint top minor thread, and the sand-precipitating tube bottom connects with sand-precipitating joint top major thread, and the sand-precipitating joint bottom connects with flushing valve.During oil recovery, crude oil enters from the sand-precipitating joint side in the well, behind the pressure testing valve by the screw pump extraction, when stopping for some reason that sand sinks on the well pump, sand from the annular space between sand-precipitating tube and the screw pump through another passage of sand-precipitating joint again through flushing valve, sink under the pump in the sand setting tail pipe.During well-flushing, well-flushing water downwards returns out ground after flushing valve enters the oil pipe of annular space to the screw pump between sand-precipitating tube and the screw pump outside sand-precipitating tube, thereby realize the purpose of well-flushing.
The present invention is when recovering the oil, oil is from the side oil-feed of sand-precipitating joint, therefore the tubing string anchoring device is installed in inconvenience under pump, anchoring device should be installed on the pump on the oil pipe, for preventing that screw pump from threading off, sand-precipitating tube top connects screw thread and sand-precipitating tube bottom, and connect screw thread design with sand-precipitating joint be left-handed thread with oil pipe on the pump.
The invention has the beneficial effects as follows, sand can sink down in the tail pipe after sand output well stopped well for some reason, sand can not bury screw rod and sucker rod, can not cause the sand holddown and operation, the present invention can also satisfy the requirement of well-flushing, makes oil recovery well ordinary production for a long time, increases the oil well operating time, reduce operating cost, have remarkable economic efficiency.
Four, description of drawings
Accompanying drawing is the erection drawing of the embodiment of the invention.
Five, embodiment
Below in conjunction with accompanying drawing the embodiment of the invention is described.
Among the figure: the 1st, sand-precipitating tube, the 2nd, screw pump, the 3rd, the pressure testing valve, the 4th, sand-precipitating joint, the 5th, flushing valve, i.e. the present invention is made up of sand-precipitating tube 1, screw pump 2, pressure testing valve 3, sand-precipitating joint 4, flushing valve 5.Screw pump 2 is in the sand-precipitating tube 1, and screw pump 2 bottoms connect with pressure testing valve 3, and pressure testing valve 3 bottoms connect with sand-precipitating joint 4 top minor threads, and sand-precipitating tube 1 bottom connects with sand-precipitating joint 4 top major threads, and sand-precipitating joint 4 bottoms connect with flushing valve 5.Flushing valve 5 bottoms connect the sand setting tail pipe.During oil recovery, crude oil enters from sand-precipitating joint 4 sides in the well, by screw pump 2 extraction, when stopping on the well pump sand for some reason when sinking, sand sinks under the pump in the sand setting tail pipe through flushing valve 5 through sand-precipitating joint 4 another passages from the annular space between sand-precipitating tube 1 and the screw pump 2 again behind pressure testing valve 3.During well-flushing, well-flushing water downwards returns out ground after flushing valve 5 sides enter the oil pipe of annular space to the screw pump between sand-precipitating tube 1 and the screw pump 2 outside sand-precipitating tube 1, thus the purpose of realization well-flushing.
The present invention is when recovering the oil, oil is from the side oil-feed of sand-precipitating joint, therefore the tubing string anchoring device is installed in inconvenience under pump, anchoring device should be installed on the pump on the oil pipe, for preventing that screw pump from threading off because of rotation, sand-precipitating tube 1 top connects screw thread and sand-precipitating tube bottom, and connect screw thread design with sand-precipitating joint 4 be left-handed thread with oil pipe on the pump.
On oil recovery well does not need pump, during the oil pipe pressure testing, on the flushing valve valve ball can be installed not, be lowered in the pump with the screw rod that makes things convenient for screw pump.
Be to improve the reliability of flushing valve, the valve ball of flushing valve, valve bonnet two covers that can be installed in series.
Claims (1)
1, a kind of sand control card washing well screw pump, form by sand-precipitating tube (1), screw pump (2), pressure testing valve (3), sand-precipitating joint (4), flushing valve (5), it is characterized in that: screw pump (2) is in the sand-precipitating tube (1), screw pump (2) bottom connects with pressure testing valve (3), pressure testing valve (3) bottom connects with sand-precipitating joint (4) top minor thread, sand-precipitating tube (1) bottom connects with sand-precipitating joint (4) top major thread, and sand-precipitating joint (4) bottom connects with flushing valve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031099173A CN100335794C (en) | 2003-04-07 | 2003-04-07 | Clean hole screw rod pump against sand block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031099173A CN100335794C (en) | 2003-04-07 | 2003-04-07 | Clean hole screw rod pump against sand block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1439810A true CN1439810A (en) | 2003-09-03 |
| CN100335794C CN100335794C (en) | 2007-09-05 |
Family
ID=27796767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031099173A Expired - Fee Related CN100335794C (en) | 2003-04-07 | 2003-04-07 | Clean hole screw rod pump against sand block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100335794C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777388A (en) * | 2012-08-17 | 2012-11-14 | 马宝忠 | All-metal screw oil well pump for deep well |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101469700A (en) * | 2007-12-24 | 2009-07-01 | 黑龙江省嘉信石化机械有限公司 | External valve type hydraulic self-sealing plunger oil-well pump |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2199305Y (en) * | 1994-07-13 | 1995-05-31 | 李希栋 | Screw stem pump device for hot-flushing well |
| CN2237740Y (en) * | 1995-10-17 | 1996-10-16 | 胜利石油管理局采油工艺研究院 | Combined pump barrel type oil pump capable of preventing from being seized by sand |
| CN2369003Y (en) * | 1999-04-12 | 2000-03-15 | 宋德福 | Anti-sand pump for thick oil |
| CN2451757Y (en) * | 2000-11-24 | 2001-10-03 | 马东 | Sandproof oil-well pump |
| CN2531131Y (en) * | 2001-12-07 | 2003-01-15 | 雷树云 | Drainable sand control oil-well pump |
| CN2625608Y (en) * | 2003-04-07 | 2004-07-14 | 于海涛 | Sand jam preventing screw pump capable of washing well |
-
2003
- 2003-04-07 CN CNB031099173A patent/CN100335794C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777388A (en) * | 2012-08-17 | 2012-11-14 | 马宝忠 | All-metal screw oil well pump for deep well |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100335794C (en) | 2007-09-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20070905 |