CN2625574Y - Oil extraction pipe column for screw pump - Google Patents
Oil extraction pipe column for screw pump Download PDFInfo
- Publication number
- CN2625574Y CN2625574Y CN 03257096 CN03257096U CN2625574Y CN 2625574 Y CN2625574 Y CN 2625574Y CN 03257096 CN03257096 CN 03257096 CN 03257096 U CN03257096 U CN 03257096U CN 2625574 Y CN2625574 Y CN 2625574Y
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- CN
- China
- Prior art keywords
- oil
- relay
- rotor
- screw pump
- stator
- 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.)
- Expired - Fee Related
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- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The utility model relates to a deep-pump oil extraction technical pipe column for a screw pump, A set of relay screw pump is added on the screw pump oil extraction pipe column, a relay screw pump consists of a relay stator and a relay rotor and an oil extraction screw pump consists of an oil extraction stator and an oil extraction rotor, an upper oil pipe, the relay stator, an oil pipe among the pumps and the oil extraction stator are sequentially connected, an upper connecting rod, the relay rotor, a connecting rod among pumps and the oil extraction rotor are sequentially connected, wherein, the relay rotor is positioned inside the oil extraction stator and the oil extraction rotor is positioned inside the oil extraction stator. In the production, a ground drive device drives the upper connecting rod, the relay rotor, the communicating rod among the pumps and the oil extraction rotor to rotate, which causes the crude oil in the well to be extracted and up to the ground through the oil extraction screw pump, the oil pipe among the pumps, the relay screw pump and the upper oil pipe. In the production, the under pressure of the screw pump is low, so that the pressure of the oil extraction screw pump reduces correspondingly, thereby, the two sets of screw pumps are of low work pressure, high pump effect, long service life, long production cycle of the oil well and lower production cost of the oil well.
Description
One, technical field
The utility model belongs to the dark extraction oil of the screw pump process pipe string that oil field machinery oil is used.
Two, background technology
Present screw pump oil production process pipe string is next cover screw pump on tubing string, when oil well energy is low, need be deeply down with screw pump, and screw pump operating pressure height, adaptive capacity is poor, and pump efficiency is low, and the life-span is short, oil well production cost height.
Three, utility model content
The purpose of this utility model is the dark extraction oil of a kind of screw pump of a design process pipe string, makes its screw pump long service life, and the oil well production cycle is long, the pump efficiency height.
The purpose of this utility model is achieved in that on the screw pump oil production tubing string increases by a cover relay screw pump, it by last coupling bar, go up between oil pipe, relay stator, relay rotor, pump between coupling bar, pump oil pipe, oil recovery stator, oil recovery rotor and form.Relay stator, relay rotor are formed the relay screw pump, and oil recovery stator, oil recovery rotor are formed oil-extracting screw pump.Oil pipe, oil recovery stator connect successively between last oil pipe, relay stator, pump; Coupling bar, oil recovery rotor connect successively between last coupling bar, relay rotor, pump.The relay rotor is in the relay stator, and the oil recovery rotor is in the oil recovery stator, and last coupling bar is in the oil pipe, and coupling bar is between pump in the oil pipe between pump.
During production, surface drive drive to be gone up coupling bar between coupling bar, relay rotor, pump, the rotation of oil recovery rotor, make in the well crude oil through oil pipe, relay screw pump between oil-extracting screw pump, pump, go up oil pipe after extraction to ground.
The beneficial effects of the utility model are: during production under the relay screw pump pressure low, the corresponding reduction of oil-extracting screw pump pressure, therefore, the operating pressure of two cover screw pumps is low, the pump efficiency height, long service life, the oil well production cycle is long, oil well production cost decline.
Four, description of drawings
Accompanying drawing is the tubing string figure of the dark extraction oil of the utility model screw pump process pipe string embodiment.
Five, the specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described.
Among the figure: the 1st, last coupling bar, the 2nd, last oil pipe, the 3rd, relay stator, the 4th, relay rotor, the 5th, coupling bar between pump, the 6th, oil pipe between pump, the 7th, oil recovery stator, the 8th, oil recovery rotor.Be the utility model by last coupling bar 1, go up between oil pipe 2, relay stator 3, relay rotor 4, pump between coupling bar 5, pump oil pipe 6, oil recovery stator 7, oil recovery rotor 8 and form.Increase by a cover relay screw pump on the screw pump oil production tubing string, relay stator 3, relay rotor 4 are formed the relay screw pump, and oil recovery stator 7, oil recovery rotor 8 are formed oil-extracting screw pump.Oil pipe 6, oil recovery stator 7 connect successively between last oil pipe 2, relay stator 3, pump; Coupling bar 5, oil recovery rotor 8 connect successively between last coupling bar, relay rotor 4, pump.Relay rotor 4 is in the relay stator 3, and oil recovery rotor 8 is in the oil recovery stator 7, and last coupling bar 1 is in the oil pipe 2, and coupling bar 5 is between pump in the oil pipe 6 between pump.
During production, surface drive drive to be gone up coupling bar 5 between coupling bar 1, relay rotor 4, pump, 8 rotations of oil recovery rotor, make in the well crude oil through oil pipe 6, relay screw pump between oil-extracting screw pump, pump, go up oil pipe 2 after extraction to ground.
Claims (1)
1, the dark extraction oil of screw pump process pipe string, by last coupling bar (1, last oil pipe (2, relay stator (3, relay rotor (4, coupling bar (5 between pump, oil pipe (6 between pump, oil recovery stator (7, (8 form the oil recovery rotor, it is characterized in that: on the screw pump oil production tubing string, increase by a cover relay screw pump, relay stator 3, relay rotor 4 is formed the relay screw pump, oil recovery stator 7, oil recovery rotor 8 is formed oil-extracting screw pump, last oil pipe 2, relay stator 3, oil pipe 6 between pump, oil recovery stator 7 connects successively, last coupling bar 1, relay rotor 4, coupling bar 5 between pump, oil recovery rotor 8 connects successively, relay rotor 4 is in the relay stator 3, oil recovery rotor 8 is in the oil recovery stator 7, last coupling bar 1 is in the oil pipe 2, and coupling bar 5 is between pump in the oil pipe 6 between pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03257096 CN2625574Y (en) | 2003-04-22 | 2003-04-22 | Oil extraction pipe column for screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03257096 CN2625574Y (en) | 2003-04-22 | 2003-04-22 | Oil extraction pipe column for screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2625574Y true CN2625574Y (en) | 2004-07-14 |
Family
ID=34254125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03257096 Expired - Fee Related CN2625574Y (en) | 2003-04-22 | 2003-04-22 | Oil extraction pipe column for screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2625574Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569616A (en) * | 2014-11-07 | 2016-05-11 | 中国石油化工股份有限公司 | Device and technology for adjustable displacement spiral sand-carrying lifting |
| CN110714912A (en) * | 2019-09-18 | 2020-01-21 | 中石化石油机械股份有限公司研究院 | Screw pump set for high-gas-content well |
| CN113073961A (en) * | 2020-01-06 | 2021-07-06 | 中国石油天然气股份有限公司 | Oil pumping device and oil pumping method |
-
2003
- 2003-04-22 CN CN 03257096 patent/CN2625574Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569616A (en) * | 2014-11-07 | 2016-05-11 | 中国石油化工股份有限公司 | Device and technology for adjustable displacement spiral sand-carrying lifting |
| CN110714912A (en) * | 2019-09-18 | 2020-01-21 | 中石化石油机械股份有限公司研究院 | Screw pump set for high-gas-content well |
| CN113073961A (en) * | 2020-01-06 | 2021-07-06 | 中国石油天然气股份有限公司 | Oil pumping device and oil pumping method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |