CN204458335U - Do not carry oil pipe can examine and change screw pump device - Google Patents
Do not carry oil pipe can examine and change screw pump device Download PDFInfo
- Publication number
- CN204458335U CN204458335U CN201520106203.9U CN201520106203U CN204458335U CN 204458335 U CN204458335 U CN 204458335U CN 201520106203 U CN201520106203 U CN 201520106203U CN 204458335 U CN204458335 U CN 204458335U
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- sealing
- screw pump
- oil pipe
- joint
- locking device
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Abstract
Do not carry oil pipe can examine and change screw pump device, screw pump rotor forms screw pump in screw pump stator, the bottom of oil pipe connects sealing locking bed, sealing locking bed installs anti-rotation locating stud, the top of screw pump rotor connects boom stick joint, boom stick joint and screw pump rotor are connected to the lower end of driveshaft, the bottom of screw pump stator connects sealing-locking device, the top of screw pump stator connects suspended tubes joint, the internal diameter of suspended tubes joint is less than the external diameter of boom stick joint, sealing-locking device inserts in sealing locking bed, sealing-locking device and the supporting gap of playing lock nut pump stator and sealing sealing-locking device and sealing between locking bed of sealing locking bed, the opening slot of sealing-locking device bottom is stuck on anti-rotation locating stud, can drive in lower going-into-well by driveshaft, driveshaft is carried on ground, just screw pump all can be proposed to carry out inspection to change, the oil pipe on by well head to stator is not needed to propose just can complete.
Description
Technical field
The utility model belongs to the down-hole pumping unit in oil field, is that one is not carried oil pipe and can be examined and change screw pump device.
Background technique
In conventional screw pump oil recovery process, the rotor of screw pump is connected with drive rod, the stator of screw pump is connected with oil pipe, inspection pump needs the stator rotor of screw pump to carry from down-hole when changing pump operation and carries out inspection to ground and change operation, therefore necessarily the oil pipe on well head to stator is all proposed could to realize examining pump and changes pump operation; Because screw pump is in hundreds of in the dark well of a few km, the operation that screw pump is changed in inspection is many, and the difficulty that screw pump is changed in inspection is very large, workload is also large, and the activity duration that screw pump is changed in inspection is long, and oil well operation costly, the oil well off-time is long, delays production, affects oil well output.
Summary of the invention
The purpose of this utility model is that a kind of novel oil pipe of not carrying of design can be examined and changes screw pump device, make it examine to change the oil pipe that screw pump need not propose on well head to stator, reduce flow chart, overcome above-mentioned Problems existing, reduce operating cost, reduce the oil well off-time.
The purpose of this utility model is achieved in that and comprises oil pipe, suspended tubes joint, driveshaft, boom stick joint, screw pump rotor, screw pump stator, sealing-locking device, sealing locking bed, anti-rotation locating stud, screw pump rotor forms screw pump in screw pump stator, the bottom of oil pipe connects sealing locking bed, sealing locking bed installs anti-rotation locating stud, the top of screw pump rotor connects boom stick joint, boom stick joint and screw pump rotor are connected to the lower end of driveshaft, the bottom of screw pump stator connects sealing-locking device, the top of screw pump stator connects suspended tubes joint, the internal diameter of suspended tubes joint is less than the external diameter of boom stick joint, sealing-locking device inserts in sealing locking bed, sealing-locking device and the supporting gap of playing lock nut pump stator and sealing sealing-locking device and sealing between locking bed of sealing locking bed, the opening slot of sealing-locking device bottom is stuck on anti-rotation locating stud, make can not relatively to rotate between screw pump stator with oil pipe.
The outside of suspended tubes joint is provided with elasticity righting device, makes screw pump stator be in center condition.
The beneficial effects of the utility model are: screw pump of the present utility model can drive in lower going-into-well by driveshaft, under sealing-locking device effect, screw pump stator can not play, Produced Liquid outside screw pump stator can not flow away downwards, can not relatively rotate between screw pump stator with oil pipe under the opening slot card of sealing-locking device bottom and the mating reaction of anti-rotation locating stud, screw pump of the present utility model can normally be pumped, if when screw pump needs inspection to change after damaging, carry driveshaft on the ground, just screw pump all can be proposed to carry out inspection and change.Therefore, the utility model can overcome prior art Problems existing, inspection does not need the oil pipe on by well head to stator to propose just can complete when changing operation, the operation that screw pump is changed in inspection is few, and workload reduces, and oil well operation expense is low, the activity duration that screw pump is changed in inspection is short, the oil well off-time is few, decreases and repaiies into the impact of operation on oil well production, has significant through numerous benefit.
Accompanying drawing explanation
Fig. 1 is the erection drawing of the utility model embodiment.
Embodiment
Below in conjunction with Fig. 1, embodiment of the present utility model is described.
As seen from the figure, embodiment of the present utility model comprises oil pipe 1, suspended tubes joint 2, driveshaft 3, boom stick joint 4, screw pump rotor 5, screw pump stator 6, sealing-locking device 7, sealing locking bed 8, anti-rotation locating stud 9, the bottom of oil pipe 1 connects sealing locking bed 8, sealing locking bed 8 installs anti-rotation locating stud 9, screw pump rotor 5 forms screw pump in screw pump stator 6, the top of screw pump rotor 5 connects boom stick joint 4, boom stick joint 4 and screw pump rotor 5 are connected to the lower end of driveshaft 3, the bottom of screw pump stator 6 connects sealing-locking device 7, the top of screw pump stator 6 connects suspended tubes joint 2, the internal diameter of suspended tubes joint 2 is less than the external diameter of boom stick joint 4, sealing-locking device 7 inserts in sealing locking bed 8, sealing-locking device 7 there are seal ring and lock ring, lock ring groove is had in sealing locking bed 8, sealing-locking device 7 and the supporting gap of playing lock nut pump stator 6 and sealing sealing-locking device 7 and sealing between locking bed 8 of sealing locking bed 8, the opening slot of sealing-locking device 7 bottom is stuck on anti-rotation locating stud 9, make can not relatively to rotate between screw pump stator 6 with oil pipe 1, can transmitting torque.The outside of suspended tubes joint 2 is provided with elasticity righting device, makes screw pump stator 6 be in center condition, and the spring on elasticity righting device can make righting block shrink, and can change external diameter on the inwall of oil pipe 1, ensures to remove smoothly in oil pipe 1.
When going into the well, locking bed 8, oil pipe 1 will be sealed from top to bottom, and then drive suspended tubes joint 2, boom stick joint 4, screw pump rotor 5, screw pump stator 6, sealing-locking device 7 to be lowered into position by driveshaft 3.When screw pump is changed in inspection, on carry driveshaft 3, boom stick joint 4 pipe joint 2 that is draped blocks, and suspended tubes joint 2, screw pump rotor 5, screw pump stator 6, sealing-locking device 7 is taken out of by driveshaft 3 and carries out inspection and change, do not need oil pipe 1 to propose, greatly reduce workload.
Claims (2)
1. do not carry oil pipe and can examine and change screw pump device for one kind, comprise oil pipe (1), suspended tubes joint (2), driveshaft (3), boom stick joint (4), screw pump rotor (5), screw pump stator (6), sealing-locking device (7), sealing locking bed (8), anti-rotation locating stud (9), screw pump rotor (5) forms screw pump screw pump stator (6) is inner, it is characterized in that: the bottom of oil pipe (1) connects sealing locking bed (8), sealing locking bed (8) is upper installs anti-rotation locating stud (9), the top of screw pump rotor (5) connects boom stick joint (4), boom stick joint (4) and screw pump rotor (5) are connected to the lower end of driveshaft (3), the bottom of screw pump stator (6) connects sealing-locking device (7), the top of screw pump stator (6) connects suspended tubes joint (2), the internal diameter of suspended tubes joint (2) is less than the external diameter of boom stick joint (4), sealing-locking device (7) inserts in sealing locking bed (8), sealing-locking device (7) and the supporting gap of playing lock nut pump stator (6) and sealing sealing-locking device (7) and sealing between locking bed (8) of sealing locking bed (8), the opening slot of sealing-locking device (7) bottom is stuck on anti-rotation locating stud (9), make can not relatively to rotate between screw pump stator (6) with oil pipe (1).
2. oil pipe of not carrying according to claim 1 can be examined and changes screw pump device, it is characterized in that: the outside of suspended tubes joint (2) is provided with elasticity righting device, makes screw pump stator (6) be in center condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520106203.9U CN204458335U (en) | 2015-02-14 | 2015-02-14 | Do not carry oil pipe can examine and change screw pump device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520106203.9U CN204458335U (en) | 2015-02-14 | 2015-02-14 | Do not carry oil pipe can examine and change screw pump device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204458335U true CN204458335U (en) | 2015-07-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520106203.9U Active CN204458335U (en) | 2015-02-14 | 2015-02-14 | Do not carry oil pipe can examine and change screw pump device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204458335U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242559A (en) * | 2019-07-21 | 2019-09-17 | 中石化石油工程技术服务有限公司 | A kind of subsurface progressive cavity and the construction method for passing through subsurface progressive cavity |
-
2015
- 2015-02-14 CN CN201520106203.9U patent/CN204458335U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242559A (en) * | 2019-07-21 | 2019-09-17 | 中石化石油工程技术服务有限公司 | A kind of subsurface progressive cavity and the construction method for passing through subsurface progressive cavity |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |