CN203626753U - Rodless oil extraction device driven by underground permanent magnet linear motor - Google Patents
Rodless oil extraction device driven by underground permanent magnet linear motor Download PDFInfo
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- CN203626753U CN203626753U CN201320723583.1U CN201320723583U CN203626753U CN 203626753 U CN203626753 U CN 203626753U CN 201320723583 U CN201320723583 U CN 201320723583U CN 203626753 U CN203626753 U CN 203626753U
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- mover
- pipe
- piston
- sand control
- oil
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- 238000000605 extraction Methods 0.000 title claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 239000004576 sand Substances 0.000 claims description 39
- 238000012856 packing Methods 0.000 claims description 18
- 230000003139 buffering effect Effects 0.000 claims description 12
- 238000005086 pumping Methods 0.000 claims description 8
- 239000003921 oil Substances 0.000 abstract description 29
- 239000003129 oil well Substances 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 239000010779 crude oil Substances 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Abstract
The utility model relates to a rodless oil extraction device driven by an underground permanent magnet linear motor, which consists of a front piston tube, magnetic steel and a tail tube; the front piston tube is at the uppermost end of the device; the magnetic steel is arranged in the middle of the device; the tail pipe is arranged at the lower end of the device; the pull-down oil pump cylinder is in threaded connection with the front piston pipe, a pull-down pump plunger is connected with the motor pull rod through a conversion joint with a pin, and an upper coupling of the pull-down pump is connected with the oil pipe; the motor rotor drives the pull-down pump plunger to pump oil, and crude oil enters the oil pipe from the pump barrel; the device realizes oil extraction without a sucker rod, and fundamentally solves the problem of eccentric wear of the rod pipe which cannot be eliminated by the directional well; the zero transmission from the motor to the oil well pump is realized, the stroke loss is eliminated, the pump efficiency and the system efficiency of the oil well pump are improved, and the operation safety risk is reduced.
Description
Technical field
The utility model relates to the Rodless oil extraction device that a kind of down-hole permanent-magnetism linear motor drives, and is applicable to the easily producing well of generation rod and tube partial-wear such as directional well, inclined shaft, belongs to industrial gas oil underground operation tool technical field.
Background technology
In current mechanical oil production model, the advantage such as oil pumper sucker rod pump hoisting system is simple in structure with it, technology maturation, reliability and durability, wide adaptability has occupied leading position, accounts for 90% left and right of artificially lifted well's number.The part but it also comes with some shortcomings: first, have intrinsic eccentric wear problem between sucker rod and oil pipe, along with the moisture rising in oil field, the intensification of pump extension and increasing of special track well, this problem becomes more and more serious.Secondly, too much transmission link, overcome the weight of sucker rod own and elastic deformation will consume a part of power, finally cause that oil pumper sucker rod pump system effectiveness reduces, maintenance workload strengthens, increased crude oil production cost.
The Rodless oil extraction system that down-hole permanent-magnetism linear motor drives is that permanent-magnetism linear motor is placed in to down-hole, change electric energy into straight reciprocating motion mechanical energy by magnetic pumping, without any need for the transmission device of intermediate conversion mechanism, thereby directly drive oil well pump to realize lifting oil pumping.Compared with oil pumper sucker rod pumping system, owing to not needing sucker rod, eliminate loss of plunger stroke, improve pumping efficiency of oil pump and running efficiency of system, reduction energy consumption, also fundamentally solve the ubiquitous rod and tube partial-wear problem of directional well; Application digital control scheme adjustment System operational factor, has reduced later stage operation expense and labour intensity; Systematically face portion only has switch board, and well head floor space is few.
Utility model content
The purpose of this utility model is to provide the Rodless oil extraction device that a kind of down-hole permanent-magnetism linear motor drives.Compared with oil pumper sucker rod pumping system, fundamentally eliminate rod and tube partial-wear problem, reduce transmission link, be conducive to the raising of system effectiveness.
The Rodless oil extraction device that described down-hole permanent-magnetism linear motor of the present utility model drives is made up of secondary piston pipe, magnet steel, tail pipe three parts; Secondary piston pipe is in the top of device, and magnet steel is at the middle part of device, and tail pipe rises in device lower end;
Drop-down oil pumping barrel is connected with secondary piston gas thread, and drop-down pump plunger is connected by the crossover sub that adds pin with motor pull bar, and drop-down pump box cupling is connected with oil pipe.
Described secondary piston pipe is by secondary piston box cupling, upper piston nut, and sand control packing, mozzle, secondary piston pipe, connecting axle, crossover sub, front sand control piston, dynamic seal, lower piston nut, secondary piston dog screw forms;
Drop-down pump plunger is connected by the crossover sub that adds pin with motor pull bar, and drop-down pump lower outer pipe is connected with motor secondary piston box cupling, and on drop-down pump, box cupling is connected with oil pipe tail end;
Front sand control piston is connected with connecting axle by upper piston nut, the lower piston nut at two ends, on front sand control piston, sand control packing and dynamic seal is housed;
On secondary piston pipe, cover has mozzle, fixes by secondary piston dog screw.
Described magnet steel is by cable, wire bushing pipe, lead-out wire nut, lead-out wire pad, mover cushion pad, dish spring baffle plate, sand control packing, stator, urceolus, lead-out wire adpting flange, draw spool, mover locking nut, buffering dish spring dynamic seal mover, mover support ring forms; Sand control packing is housed in electric mover upper end and dynamic seal is connected by mover locking nut with connecting axle, and stop is housed on connecting axle: mover cushion pad, dish spring baffle plate, buffering dish spring; A series of mover support ring is housed between mover and stator;
Lead-out wire nut, lead-out wire pad, lead-out wire adpting flange be housed at the motor cable place of drawing, draw spool, cable pigtail cover has wire bushing pipe.
Described tail pipe column is by piston unt, dynamic seal, and dish spring baffle plate, mover cushion pad, tail pipe, tail nut, stay pipe, upper mover lock-screw, sand control packing, rear sand control piston, buffering dish spring, lower mover lock-screw forms; Sand control piston is equipped with in electric mover lower end, is connected by piston unt and upper mover safetied pin, and sand control packing and dynamic seal are housed on sand control piston;
In sand control piston lower end, stop is housed, comprises: buffering dish spring, dish spring baffle plate, mover cushion pad, lower mover lock-screw, the lower end union tail nut of tail pipe.
Down-hole permanent-magnetism linear motor connects drop-down pump, and to carry out the process of work as follows:
When up stroke, electric mover upwards moves and drives drop-down pump plunger upwards to move, and inlet valve is opened, the valve of going on a tour cuts out, and completes the suction process of oil well pump; When down stroke, electric mover moves downwards and drives drop-down pump plunger to move downwards, and inlet valve cuts out, delivery valve is opened, and completes the discharge process of oil well pump.
The present invention has realized without sucker rod oil production, has fundamentally solved the rod and tube partial-wear problem that directional well cannot be eliminated; Realize " zero transmission " of motor to oil well pump, eliminated loss of plunger stroke, improved pumping efficiency of oil pump and system effectiveness, reduced job safety risk.
Brief description of the drawings
Fig. 1 is secondary piston tubing string profile construction schematic diagram
In figure, 1, drop-down pump plunger, 2, secondary piston box cupling, 3, upper piston nut, 4, sand control packing, 5, mozzle, 6, secondary piston pipe, 7, connecting axle, 8, crossover sub, 9, front sand control piston, 10, dynamic seal, 11, lower piston nut, 12, secondary piston dog screw.
Fig. 2 is magnet steel profile construction schematic diagram
In figure, 13, cable, 14, wire bushing pipe, 15, lead-out wire nut, 16, lead-out wire pad, 17, mover cushion pad, 18, dish spring baffle plate, 19, sand control packing, 20, stator, 21, urceolus, 22, lead-out wire adpting flange, 23, draw spool, 24, mover locking nut, 25, buffering dish spring, 26, dynamic seal 27, mover, 28 mover support rings.
Fig. 3 is tail pipe column profile construction schematic diagram
In figure, 29, piston unt, 30, dynamic seal, 31, dish spring baffle plate, 32, mover cushion pad, 33, tail pipe, 34, tail nut, 35, stay pipe, 36, upper mover lock-screw, 37, sand control packing, 38, rear sand control piston, 39, buffering dish spring, 40, lower mover lock-screw.
Detailed description of the invention
The Rodless oil extraction device driving taking a down-hole permanent-magnetism linear motor, as example, elaborates to the present invention.
Consult Fig. 1, drop-down pump plunger 1 is connected by the crossover sub 8 that adds pin with motor pull bar, drop-down pump lower outer pipe is connected with motor secondary piston box cupling 2, and on drop-down pump, box cupling is connected with oil pipe tail end, by working vehicle by oil pipe, drop-down pump and down-hole linear motor G.I.H desired depth.
Front sand control piston 9 is connected with connecting axle 7 by upper piston nut 3, the lower piston nut 11 at two ends, and sand control packing 4 and dynamic seal 10 are housed on front sand control piston 9, jointly plays the sealing function to motor.
On secondary piston pipe 6, cover has mozzle 5, and fixing by secondary piston dog screw 12, mozzle 5 had both played the respiration of motor, also had the effect of filter well liquid impurity.
Consult Fig. 2, sand control packing 19 is housed in electric mover 27 upper ends and dynamic seal 26 is connected by mover locking nut 24 with connecting axle 7, for preventing mover step-out, stop are housed on connecting axle: mover cushion pad 17, dish spring baffle plate 18, buffering dish spring 25.
For ensureing the straightness accuracy of electric mover operation, a series of mover support ring 28 is housed between mover and stator 20.
Lead-out wire nut 15, lead-out wire pad 16, lead-out wire adpting flange 22 are housed at motor cable 13 places of drawing, draw spool 23.Cable pigtail cover has wire bushing pipe 14.
Consult Fig. 3, sand control piston 38 is equipped with in electric mover lower end, is connected by piston unt 29 and upper mover safetied pin 36, and sand control packing 37 and dynamic seal 30 are housed on sand control piston, jointly plays the sealing function to motor.
In sand control piston lower end, stop is housed, comprises: buffering dish spring 39, dish spring baffle plate 31, mover cushion pad 32, lower mover lock-screw 40, the lower end union tail nut 34 of tail pipe 33 coordinates with stop and prevents mover step-out.
Claims (4)
1. the Rodless oil extraction device that down-hole permanent-magnetism linear motor drives, is characterized in that: be made up of secondary piston pipe, magnet steel, tail pipe three parts; Secondary piston pipe is in the top of device, and magnet steel is at the middle part of device, and tail pipe rises in device lower end;
Drop-down oil pumping barrel is connected with secondary piston gas thread, and drop-down pump plunger is connected by the crossover sub that adds pin with motor pull bar, and drop-down pump box cupling is connected with oil pipe.
2. the Rodless oil extraction device that down-hole according to claim 1 permanent-magnetism linear motor drives, described secondary piston pipe is by secondary piston box cupling, upper piston nut, sand control packing, mozzle, secondary piston pipe, connecting axle, crossover sub, front sand control piston, dynamic seal, lower piston nut, secondary piston dog screw forms; It is characterized in that:
Drop-down pump plunger is connected by the crossover sub that adds pin with motor pull bar, and drop-down pump lower outer pipe is connected with motor secondary piston box cupling, and on drop-down pump, box cupling is connected with oil pipe tail end;
Front sand control piston is connected with connecting axle by upper piston nut, the lower piston nut at two ends, on front sand control piston, sand control packing and dynamic seal is housed;
On secondary piston pipe, cover has mozzle, fixes by secondary piston dog screw.
3. the Rodless oil extraction device that down-hole according to claim 1 permanent-magnetism linear motor drives, described magnet steel is by cable, wire bushing pipe, lead-out wire nut, lead-out wire pad, mover cushion pad, dish spring baffle plate, sand control packing, stator, urceolus, lead-out wire adpting flange, draws spool, mover locking nut, buffering dish spring dynamic seal mover, mover support ring forms; It is characterized in that: sand control packing is housed in electric mover upper end and dynamic seal is connected by mover locking nut with connecting axle, and stop is housed on connecting axle: mover cushion pad, dish spring baffle plate, buffering dish spring;
A series of mover support ring is housed between mover and stator;
Lead-out wire nut, lead-out wire pad, lead-out wire adpting flange be housed at the motor cable place of drawing, draw spool, cable pigtail cover has wire bushing pipe.
4. the Rodless oil extraction device that down-hole according to claim 1 permanent-magnetism linear motor drives, described tail pipe column is by piston unt, dynamic seal, dish spring baffle plate, mover cushion pad, tail pipe, tail nut, stay pipe, upper mover lock-screw, sand control packing, rear sand control piston, buffering dish spring, lower mover lock-screw forms; It is characterized in that: sand control piston is equipped with in electric mover lower end, be connected by piston unt and upper mover safetied pin, sand control packing and dynamic seal are housed on sand control piston;
In sand control piston lower end, stop is housed, comprises: buffering dish spring, dish spring baffle plate, mover cushion pad, lower mover lock-screw, the lower end union tail nut of tail pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320723583.1U CN203626753U (en) | 2013-11-13 | 2013-11-13 | Rodless oil extraction device driven by underground permanent magnet linear motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320723583.1U CN203626753U (en) | 2013-11-13 | 2013-11-13 | Rodless oil extraction device driven by underground permanent magnet linear motor |
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| Publication Number | Publication Date |
|---|---|
| CN203626753U true CN203626753U (en) | 2014-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320723583.1U Expired - Fee Related CN203626753U (en) | 2013-11-13 | 2013-11-13 | Rodless oil extraction device driven by underground permanent magnet linear motor |
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| CN (1) | CN203626753U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134182A (en) * | 2015-09-08 | 2015-12-09 | 中国石油天然气股份有限公司 | Production fluid profile testing pipe column dragged by submersible linear motor and method |
| CN110748336A (en) * | 2019-08-06 | 2020-02-04 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Magnetic signal control electromagnetic force driving mechanical positioner and method |
-
2013
- 2013-11-13 CN CN201320723583.1U patent/CN203626753U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134182A (en) * | 2015-09-08 | 2015-12-09 | 中国石油天然气股份有限公司 | Production fluid profile testing pipe column dragged by submersible linear motor and method |
| CN110748336A (en) * | 2019-08-06 | 2020-02-04 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Magnetic signal control electromagnetic force driving mechanical positioner and method |
| CN110748336B (en) * | 2019-08-06 | 2024-01-23 | 中国石油天然气集团有限公司 | Magnetic signal control electromagnetic force driving mechanical positioner and method |
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|---|---|---|---|
| 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: 20140604 Termination date: 20211113 |
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| CF01 | Termination of patent right due to non-payment of annual fee |