CN2172343Y - Well oil extracting unit without oil pipe - Google Patents
Well oil extracting unit without oil pipe Download PDFInfo
- Publication number
- CN2172343Y CN2172343Y CN 93222951 CN93222951U CN2172343Y CN 2172343 Y CN2172343 Y CN 2172343Y CN 93222951 CN93222951 CN 93222951 CN 93222951 U CN93222951 U CN 93222951U CN 2172343 Y CN2172343 Y CN 2172343Y
- Authority
- CN
- China
- Prior art keywords
- pump
- oil
- hollow rod
- packer
- oil pipe
- 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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- Reciprocating Pumps (AREA)
Abstract
The utility model relates to an oil exploiting device without an oil pipe used for an oil field pipe type pump and a ground driven single screw pump under a well. The oil exploiting device without an oil pipe used for an oil field pipe type pump and a ground driven single screw pump under a well is mainly composed of a hollow oil pumping rod, a double-clamping tile hand losing sealing and separating device, and an oil pumping pump under a well. An oil pipe is cancelled. An annular space between a casing pipe and the hollow oil pumping rod is used as a flow channel. The hollow oil pumping rod is adopted by pump transmission. The upper part of the hollow oil pumping rod is connected with a ground drive device, and a one-way valve is arranged on the lower part of the hollow oil pumping rod. A pump barrel is connected in the middle of the double-clamping tile hand losing sealing and separating device. A rotor or a plunger is connected in the pump barrel on the lower part of the hollow oil pumping rod. The utility model solves the problem that the an oil liquid flow channel is narrow. The work parameters and the use range of a pump are enlarged, and the delivery quantity of the pump is enlarged.
Description
The utility model relates to a kind of tubingless oil production unit that is used for oilfield tubular pump and surface driving down-hole single-screw (single screw) pump.
Existing tubing pump and surface driving down-hole single-screw (single screw) pump extracting device of oil, adopted is that the pipe oil production method is arranged more, promptly in succession under tubing pump pump barrel or the single-screw (single screw) pump stator lower going-into-well, be lowered to plunger or rotor again, recover the oil as runner by the annular space between the R a T with oil pipe, pump delivery is subjected to certain restriction, simultaneously, flow in the annular space of fluid between oil pipe and sucker rod, friction loss is bigger, increase power of motor, reduced pump efficiency.The oil pumping of employing solid sucker rod, moment of torsion and pulling force also are subjected to certain limitation.
A series of problems according to above-mentioned existence, the purpose of this utility model provides a kind of no oil pipe downhole oil extraction device, it has solved the narrow problem of oil well pump liquid flow channel for oil, liquid flow channel for oil is expanded as annular space between sucker rod and the sleeve pipe by original sucker rod and the annular space between the oil pipe, cancelled oil pipe, oil pipe is only as the instrument of set packer.
The utility model is achieved in that this no oil pipe downhole oil extraction device mainly is made up of hollow rod, dual-grip back-off packer and down-hole pump, cancelled oil pipe, by annular space between sleeve pipe and the sucker rod as runner, hollow rod is adopted in the transmission of pump, hollow rod top links to each other with surface drive, and the hollow rod bottom is provided with one way valve; Pump barrel is connected in the middle of the dual-grip back-off packer, and rotor or plunger are connected in the pump barrel of hollow rod bottom.
The utility model has not only enlarged the running parameter and the scope of application of pump, has reduced cost, has increased pump delivery, has reduced friction loss, has improved pump efficiency.And adopt the hollow stem suction, and improved antitorque and resistance to tension, also can carry out hot water mixing, made things convenient for well-flushing, wax removal and desanding.
Fig. 1 is a down-hole single-screw (single screw) pump tubingless oil production unit structural representation;
Fig. 2 is a tubing pump tubingless oil production unit structural representation;
The utility model will be further described below in conjunction with accompanying drawing:
The utility model mainly is made up of hollow rod, dual-grip back-off packer and downhole pump.Concrete structure is as follows: the roofbolt part mainly is made up of hollow rod and one way valve, and hollow rod can be used as well-flushing; Wax removal; The passage of desanding and hot water mixing, but also transferring power.The dual-grip back-off packer mainly partly is made up of upper slips part and lower slips, and lower slips sets for the mode of hanging tag, and there is a convex edge in the slips outside, is stuck in the casing coupling place when setting; Be provided with reducer union in upper slips bottom and lower slips top; Single-screw (single screw) pump flexible axle 3 upper ends connect hollow rod 1, and hollow rod is provided with one way valve 2, and the lower end connects rotor 7; Stator is by stator casing 5, and stator rubber 6 and backing pin 8 are formed, and stator casing 5 is linking to each other with reducer union between the lower slips 4 and 9 on the dual-grip back-off packer.
Tubing pump plunger 10 links to each other with hollow rod 1, and plunger is provided with travelling valve 12, and hollow rod is provided with one way valve 2; Pump barrel 11 is linking to each other with sub-coupling between the lower slips 4 and 9 on the dual-grip back-off packer, and the pump barrel bottom is provided with standing valve 13.
Earlier oil well pump pump barrel (single-screw (single screw) pump stator or tubing pump pump barrel) is connected between the dual-grip back-off packer during work, with precalculated position under the oil pipe lower going-into-well; After having set packer, take out back-off sub and oil pipe, again single-screw (single screw) pump rotor or tubing pump plunger are connected in the hollow rod bottom and are lowered in the pump barrel, carry dead space, surface drive is linked to each other with hollow rod top, settling down installs wellhead assembly, promptly finishes the whole erection process again.
The down-hole single-screw (single screw) pump course of work: surface drive drives hollow rod and rotates in sleeve pipe, and the hollow rod bottom is connecting rotor, and rotor promptly rotates in stator.Because the rotor in stator does not take whole spaces of stator, but between the helicoid of the two, form a plurality of sealing chambers vertically, in the rotor rotation process, the sealing chamber is shifted to outlet side by the suction side vertically, disappear at outlet side at last, constantly form new sealing chamber simultaneously in the suction side.The liquid of the indoor splendid attire of enclosed cavity just constantly is squeezed to outlet side from the suction side continuously, enters the annular space between sleeve pipe and the hollow rod, is finally given rise to ground, thereby finishes whole oil pumping work.
The tubing pump course of work: be that hollow rod drive plunger moves reciprocatingly in pump barrel during the oil pumper operate as normal.During up stroke: travelling valve cuts out under the effect of plunger upper part oil column pressure, and open under the inside and outside pressure differential effect of standing valve pump barrel below plunger, plunger upper end fluid is squeezed into the annular space of hollow rod and sleeve pipe, the plunger lower end, and fluid is full of whole pump barrel; During down stroke: travelling valve is owing to pressure differential about the plunger is opened, and standing valve cuts out under the inside and outside pressure differential effect of pump barrel, and fluid enters the annular space of hollow rod and sleeve pipe in the pump barrel by travelling valve.Tubing pump is like this fluid slowly to be given rise to ground.
Claims (4)
1, a kind of no oil pipe downhole oil extraction device, mainly form by hollow rod, dual-grip back-off packer and downhole pump, it is characterized in that having cancelled oil pipe, by annular space between sleeve pipe and the sucker rod as runner, hollow rod is adopted in the transmission of pump, the hollow rod bottom is provided with one way valve, and hollow rod top links to each other with surface drive; Pump barrel is connected in the middle of the dual-grip back-off packer, and rotor or plunger are connected in the pump barrel of hollow rod bottom.
2, no oil pipe downhole oil extraction device according to claim 1 is characterized in that single-screw (single screw) pump flexible axle (3) upper end connects hollow rod (1), and hollow rod is provided with one way valve (2), and the lower end connects rotor (7); Stator is by stator casing (5), and stator rubber (6) and backing pin (8) are formed, and stator casing (5) links to each other with reducer union between lower slips (4) on the dual-grip back-off packer and (9).
3, no oil pipe downhole oil extraction device according to claim 1 is characterized in that tubing pump plunger (10) links to each other with hollow rod (1), and plunger is provided with travelling valve (12), and hollow rod is provided with one way valve (2); Pump barrel (11) links to each other with sub-coupling between lower slips (4) on the dual-grip back-off packer and (9), and the pump barrel bottom is provided with standing valve (13).
4, no oil pipe downhole oil extraction device according to claim 1 and 2, it is characterized in that packer is the dual-grip back-off packer, this packer partly is made up of with lower slips the upper slips part, its lower slips sets for the mode of hanging tag, there is a convex edge in the slips outside, be stuck in the casing coupling place when setting, be provided with reducer union in the bottom of upper slips and the top of lower slips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93222951 CN2172343Y (en) | 1993-09-01 | 1993-09-01 | Well oil extracting unit without oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93222951 CN2172343Y (en) | 1993-09-01 | 1993-09-01 | Well oil extracting unit without oil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2172343Y true CN2172343Y (en) | 1994-07-20 |
Family
ID=33801406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93222951 Expired - Fee Related CN2172343Y (en) | 1993-09-01 | 1993-09-01 | Well oil extracting unit without oil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2172343Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100363617C (en) * | 2004-09-22 | 2008-01-23 | 贺波 | Scrow oil pumping pump |
| CN105064956A (en) * | 2015-07-30 | 2015-11-18 | 西安石油大学 | Screw type efficient oil pumping device |
| CN106151061A (en) * | 2016-07-29 | 2016-11-23 | 中国石油天然气股份有限公司 | Combined threaded rod pump and without bar hoisting system |
| CN106460484A (en) * | 2013-11-19 | 2017-02-22 | 瑟瑞恩派特石油代理服务有限公司 | Check valve with inertial mass for progressive cavity pumps |
| CN108843277A (en) * | 2018-06-19 | 2018-11-20 | 广东石油化工学院 | A kind of exploitation of oil-gas field environment-friendly type oil rig |
| CN112823235A (en) * | 2018-09-20 | 2021-05-18 | 沙特***石油公司 | Method and apparatus for rig-less deployment of an electrical submersible pump system |
-
1993
- 1993-09-01 CN CN 93222951 patent/CN2172343Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100363617C (en) * | 2004-09-22 | 2008-01-23 | 贺波 | Scrow oil pumping pump |
| CN106460484A (en) * | 2013-11-19 | 2017-02-22 | 瑟瑞恩派特石油代理服务有限公司 | Check valve with inertial mass for progressive cavity pumps |
| CN106460484B (en) * | 2013-11-19 | 2022-04-26 | 瑟瑞恩派特石油代理服务有限公司 | Check valve with inertial mass for a screw pump |
| CN105064956A (en) * | 2015-07-30 | 2015-11-18 | 西安石油大学 | Screw type efficient oil pumping device |
| CN105064956B (en) * | 2015-07-30 | 2017-12-08 | 西安石油大学 | Spiral supplementary potentiating oil pickup apparatus |
| CN106151061A (en) * | 2016-07-29 | 2016-11-23 | 中国石油天然气股份有限公司 | Combined threaded rod pump and without bar hoisting system |
| CN108843277A (en) * | 2018-06-19 | 2018-11-20 | 广东石油化工学院 | A kind of exploitation of oil-gas field environment-friendly type oil rig |
| CN112823235A (en) * | 2018-09-20 | 2021-05-18 | 沙特***石油公司 | Method and apparatus for rig-less deployment of an electrical submersible pump system |
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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 |