CN204344091U - A kind of reacting cycle liquid drives oil-extracting screw pump - Google Patents
A kind of reacting cycle liquid drives oil-extracting screw pump Download PDFInfo
- Publication number
- CN204344091U CN204344091U CN201420817334.3U CN201420817334U CN204344091U CN 204344091 U CN204344091 U CN 204344091U CN 201420817334 U CN201420817334 U CN 201420817334U CN 204344091 U CN204344091 U CN 204344091U
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- transition joint
- screw pump
- arranges
- top connection
- lower contact
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Abstract
The utility model relates to a kind of reacting cycle liquid and drives oil-extracting screw pump, can alleviate the problem of wax deposition in oil pipe, fouling, and the solid precipitation of stratum extraction fluid cause down-hole blocked portion, wearing and tearing problem.Its technical scheme: screw motor lower end arranges screw pump, is connected with bearing mounting sleeve by transition joint, uses flexible axle, power transmission shaft, the rotor of Hooks coupling universal coupling connecting screw rod motor and the rotor of screw pump successively; Screw pump upper end arranges lower contact, and screw motor upper end arranges top connection, arranges chuck between top connection and transition joint and between lower contact and transition joint; Lower contact upper end arranges side opening, and top connection lower end arranges side opening, and transition joint arranges side opening and axially extending bore.
Description
Technical field
The utility model relates to a kind of Rodless oil extraction instrument, is more particularly that a kind of reacting cycle liquid drives oil-extracting screw pump.
Background technology
Liquid drives to recover the oil has compared many advantages with conventional sucker rod pumping with electric submersible pumping, and liquid drives oil pumping, and can be suitable for the casing programme such as deep-well, directional well, horizontal well complicated, and extraction fluid height is sticky, containing oil wells such as sand, the content of wax, fouling are serious.On the other hand, liquid drives oil recovery effectively can control tube wall incrustation wax deposition problem, and eliminate sucker rod, oil production equipment becomes simpler simultaneously.
It is direct circulation mode that conventional liquid drives oil recovery, and its general principle is: casing tube annular space and stratum separate by packer, and power fluid sends into down-hole drive motor in oil pipe, and lean liquor and stratum fluid upwards discharge ground from the annular space between oil pipe and sleeve pipe.
For the low production capacity well that fluid flow is very little, screw pump selects the model of small displacement, and the screw motor discharge capacity matched with it is also relatively little.The mixed liquor of direct circulation mode fluid and lean liquor is transported to ground from the annular space between oil pipe and sleeve pipe, and mixed liquor flow is less, the problem such as down-hole blocked portion, wearing and tearing that the solid precipitation easily producing tube wall incrustation, wax deposition and stratum extraction fluid causes.
Reacting cycle liquid drives to recover the oil and power fluid is pumped into down-hole from the annular space between oil pipe and sleeve pipe, and the annular space between casing tube and stratum separate by packer, from oil pipe delivered inside to ground after stratum fluid and weary power fluid are mixed together.Compared with driving oil recovery with conventional liquid, reacting cycle liquid drives to recover the oil and adopts oil pipe oil return, and under same case, the mixed liquor flow velocity of the mixed liquor velocity ratio direct circulation mode of oil pipe inner fluid and lean liquor is high.Under high flow velocities, head loss increases, but can greatly improve the problem of tube wall incrustation, wax deposition, the problem such as down-hole blocked portion, wearing and tearing that the solid precipitation that simultaneously can solve stratum extraction fluid causes, therefore reacting cycle liquid drives oil recovery and has larger promotional value.
Summary of the invention
The purpose of this utility model: in order to alleviate the problem of wax deposition in oil pipe, fouling, and the solid precipitation of stratum extraction fluid cause down-hole blocked portion, wearing and tearing problem, spy provides a kind of reacting cycle liquid to drive oil-extracting screw pump.
For achieving the above object, the technical scheme that the utility model is taked is: a kind of reacting cycle liquid drives oil-extracting screw pump, comprise top connection, sealing shroud, upper chuck, screw motor, flexible axle, transition joint, power transmission shaft, seal assembly, bearing mounting sleeve, string bearing, lower chuck, lower contact, Hooks coupling universal coupling, screw pump, packer, it is characterized in that:
Top connection bottom cone links the housing connecing screw motor, the housing lower end cone of screw motor links and connects transition joint, transition joint lower end cone button connection bearing installation sleeve, bearing mounting sleeve lower thread connects lower contact, lower contact bottom cone links the housing connecing screw pump, and the lower housing portion cone of screw pump links and connects packer;
The rotor Hooks coupling universal coupling that is threaded of screw pump, Hooks coupling universal coupling upper end cone links and connects power transmission shaft, power transmission shaft is arranged in bearing mounting sleeve by string bearing, string bearing two ends arrange seal assembly, the power transmission shaft upper end flexible axle that is threaded, the rotor lower end being threaded onto screw motor, flexible axle upper end;
Transition joint arranges and tops bar and get out of a predicament or an embarrassing situation, and chuck is installed in topping bar of transition joint, and employing is threaded, and lower chuck is installed in getting out of a predicament or an embarrassing situation of transition joint, and employing is threaded;
Arranges installation land in the middle of top connection, the installation land that sealing shroud is arranged on top connection, with being threaded, arranges taper surface outside sealing shroud, and upper chuck upper end arranges the taper surface matched with sealing shroud taper surface; Lower contact bottom arranges installation land, and the installation land that sealing shroud is arranged on lower contact, with being threaded, arranges taper surface outside sealing shroud, and lower chuck lower end arranges the taper surface matched with sealing shroud taper surface;
Above lower contact installation land, 1 ~ 4 side opening is set and is uniformly distributed along lower contact circumferencial direction, the middle part of transition joint is arranged to 1 ~ 4 side opening, the transition joint position that keeps to the side arranges 1 ~ 4 axially extending bore, and top connection is installed land lower end and arranged 1 ~ 4 side opening and be uniformly distributed along top connection circumferencial direction.
Seal assembly comprises sealing ring, baffle ring and jump ring.
The beneficial effect that the utility model has is: (1) can effectively improve oily velocity in pipes, reduces the risk of tubing wax fouling, can reduce the deposition of solid impurity simultaneously, prevent downhole tool blocked portion, wearing and tearing; (2) the weary power fluid of screw motor can reduce the salinity of stratum production fluid after mixing with stratum production fluid, reduces the risk of tubing wax fouling; (3) by controlling screw motor power fluid temperature or adding corrosion inhibiter, the risk of tubing wax fouling can be reduced.
Accompanying drawing explanation
Fig. 1 is structure diagram of the present utility model.
In figure: 1. top connection; 2. sealing shroud; 3. go up chuck; 4. screw motor; 5. flexible axle; 6. transition joint; 7. power transmission shaft; 8. seal assembly; 9. bearing mounting sleeve; 10. string bearing; 11. times chucks; 12. lower contacts; 13. Hooks coupling universal couplings; 14. screw pumps; 15. packers; 16. lower contact side openings; Annular space inside 17. times chucks; 18. transition joint axially extending bores; 19. transition joint side openings; Annular space inside chuck on 20.; 21. top connection side openings.
Detailed description of the invention
The utility model by the restriction of following embodiment, can not determine concrete embodiment according to the technical solution of the utility model and actual conditions.Do following description below in conjunction with Fig. 1 to the utility model, the position relationship of upper and lower, left and right etc. determines according to the layout direction of Figure of description 1.
As shown in Figure 1:
Top connection 1 bottom cone links the housing connecing screw motor 4, the housing lower end cone of screw motor 4 links and connects transition joint 6, transition joint 6 lower end cone button connection bearing installation sleeve 9, bearing mounting sleeve 9 lower thread connects lower contact 12, lower contact 12 bottom cone links the housing connecing screw pump 14, and the lower housing portion cone of screw pump 14 links and connects packer 15.
The rotor Hooks coupling universal coupling 13 that is threaded of screw pump 14, Hooks coupling universal coupling 13 upper end cone links and connects power transmission shaft 7, power transmission shaft 7 is arranged in bearing mounting sleeve 9 by string bearing 10, string bearing 10 two ends arrange seal assembly 8, the power transmission shaft 7 upper end flexible axle 5 that is threaded, the rotor lower end being threaded onto screw motor 4, flexible axle 5 upper end.
Transition joint 6 arranges and tops bar and get out of a predicament or an embarrassing situation, and chuck 3 is installed in topping bar of transition joint 6, and employing is threaded, and lower chuck 11 is installed in getting out of a predicament or an embarrassing situation of transition joint 6, and employing is threaded.
Arranges installation land in the middle of top connection 1, the installation land that sealing shroud 2 is arranged on top connection 1, with being threaded, arranges taper surface outside sealing shroud 2, and upper chuck 3 upper end arranges the taper surface matched with sealing shroud 2 taper surface; Lower contact 12 bottom arranges installation land, and the installation land that sealing shroud 2 is arranged on lower contact 12, with being threaded, arranges taper surface outside sealing shroud 2, and lower chuck 11 lower end arranges the taper surface matched with sealing shroud 2 taper surface.
Lower contact 12 is installed and is arranged 2 side openings above land and be uniformly distributed along lower contact 12 circumferencial direction, the middle part of transition joint 6 is arranged to 1 side opening, transition joint 6 position that keeps to the side arranges 2 axially extending bores, and top connection 1 is installed land lower end and arranged 2 side openings and be uniformly distributed along top connection 1 circumferencial direction.
Seal assembly 8 comprises sealing ring, baffle ring and jump ring.
Principle of the present utility model is:
Annular space between stratum and casing tube cuts off by packer 15, stratum production fluid passes through in the middle of packer 15, after screw pump 14 pressurizes, enter oil pipe successively by the intermediate throughholes of annular space 20, top connection side opening 21, top connection 1 inside annular space 17, transition joint axially extending bore 18, upper chuck inside lower contact side opening 16, lower chuck.
The power fluid of screw motor 4 arrives down-hole from the annular space between casing tube, screw motor 4 lower end inlet is entered by transition joint side opening 19, after power fluid acting, weary power fluid enters into oil pipe from top connection 1 centre bore, stratum production fluid mixes with the weary power fluid of screw motor 4 in top connection 1 intermediate throughholes, and mixed liquor is transported to ground from oil pipe.
Claims (2)
1. a reacting cycle liquid drives oil-extracting screw pump, comprise top connection (1), sealing shroud (2), upper chuck (3), screw motor (4), flexible axle (5), transition joint (6), power transmission shaft (7), seal assembly (8), bearing mounting sleeve (9), string bearing (10), lower chuck (11), lower contact (12), Hooks coupling universal coupling (13), screw pump (14), packer (15), it is characterized in that:
Top connection (1) bottom cone links the housing connecing screw motor (4), the housing lower end cone of screw motor (4) links and connects transition joint (6), transition joint (6) lower end cone button connection bearing installation sleeve (9), bearing mounting sleeve (9) lower thread connects lower contact (12), lower contact (12) bottom cone links the housing connecing screw pump (14), and the lower housing portion cone of screw pump (14) links and connects packer (15);
The rotor of screw pump (14) is with the Hooks coupling universal coupling that is threaded (13), Hooks coupling universal coupling (13) upper end cone links and connects power transmission shaft (7), power transmission shaft (7) is arranged in bearing mounting sleeve (9) by string bearing (10), string bearing (10) two ends arrange seal assembly (8), power transmission shaft (7) upper end with the flexible axle that is threaded (5), the rotor lower end being threaded onto screw motor (4), flexible axle (5) upper end;
Transition joint (6) arranges and tops bar and get out of a predicament or an embarrassing situation, chuck (3) is installed in topping bar of transition joint (6), employing is threaded, and lower chuck (11) is installed in getting out of a predicament or an embarrassing situation of transition joint (6), and employing is threaded;
In the middle of top connection (1), installation land is set, in the installation land that sealing shroud (2) is arranged on top connection (1) and with being threaded, sealing shroud arranges taper surface outside (2), and upper chuck (3) upper end arranges the taper surface matched with sealing shroud (2) taper surface; Lower contact (12) bottom arranges installation land, in the installation land that sealing shroud (2) is arranged on lower contact (12) and with being threaded, sealing shroud arranges taper surface outside (2), and lower chuck (11) lower end arranges the taper surface matched with sealing shroud (2) taper surface;
Above lower contact (12) installation land, 1 ~ 4 side opening is set and is uniformly distributed along lower contact (12) circumferencial direction, the middle part of transition joint (6) is arranged to 1 ~ 4 side opening, transition joint (6) position that keeps to the side arranges 1 ~ 4 axially extending bore, and top connection (1) is installed land lower end and arranged 1 ~ 4 side opening and be uniformly distributed along top connection (1) circumferencial direction.
2. a kind of reacting cycle liquid drives oil-extracting screw pump according to claim 1, it is characterized in that: seal assembly (8) comprises sealing ring, baffle ring and jump ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420817334.3U CN204344091U (en) | 2014-12-22 | 2014-12-22 | A kind of reacting cycle liquid drives oil-extracting screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420817334.3U CN204344091U (en) | 2014-12-22 | 2014-12-22 | A kind of reacting cycle liquid drives oil-extracting screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204344091U true CN204344091U (en) | 2015-05-20 |
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ID=53227366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420817334.3U Expired - Fee Related CN204344091U (en) | 2014-12-22 | 2014-12-22 | A kind of reacting cycle liquid drives oil-extracting screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204344091U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194715A (en) * | 2016-09-09 | 2016-12-07 | 中国石油大学(华东) | A kind of seperated layer water injection hydro powered screw pump system |
| CN106246534A (en) * | 2016-09-09 | 2016-12-21 | 中国石油大学(华东) | A kind of seperated layer water injection hydro powered screw pump device |
| CN108119100A (en) * | 2016-11-30 | 2018-06-05 | 中国石油天然气股份有限公司 | Oil well hoisting system and its oil pumping method |
-
2014
- 2014-12-22 CN CN201420817334.3U patent/CN204344091U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194715A (en) * | 2016-09-09 | 2016-12-07 | 中国石油大学(华东) | A kind of seperated layer water injection hydro powered screw pump system |
| CN106246534A (en) * | 2016-09-09 | 2016-12-21 | 中国石油大学(华东) | A kind of seperated layer water injection hydro powered screw pump device |
| CN106246534B (en) * | 2016-09-09 | 2018-01-12 | 中国石油大学(华东) | A kind of seperated layer water injection hydro powered screw pump device |
| CN108119100A (en) * | 2016-11-30 | 2018-06-05 | 中国石油天然气股份有限公司 | Oil well hoisting system and its oil pumping method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 Termination date: 20151222 |
|
| EXPY | Termination of patent right or utility model |