CN106150989A - Pneumatic type sand-proof oil-well pump - Google Patents
Pneumatic type sand-proof oil-well pump Download PDFInfo
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- CN106150989A CN106150989A CN201510136124.7A CN201510136124A CN106150989A CN 106150989 A CN106150989 A CN 106150989A CN 201510136124 A CN201510136124 A CN 201510136124A CN 106150989 A CN106150989 A CN 106150989A
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- oil pipe
- inflator
- oil
- sucker rod
- screen casing
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Abstract
The invention discloses: pneumatic type sand-proof oil-well pump, including driving means and oil pipe, driving means includes inflator and sucker rod, cylinder inner wall is fixed with Flexible Connector, the upper end of sucker rod is connected through inflator and Flexible Connector, and sucker rod is provided with can be by spacer ring that inflator lumen segmentation is epicoele and cavity of resorption；Being fixed with plunger in oil pipe, plunger is arranged with pump barrel, be provided with T-shaped runner in plunger, the two ends of T-shaped runner horizontal part are run through oil pipe and are connected with the inside of sleeve pipe, are fixed with sand-precipitating tube in the bottom of oil pipe by screw；Being arranged with cross section on the outer wall of oil pipe is corrugated screen casing, and the crest in screen casing upper surface arranges sieve aperture with the trough point-to-point transmission of its lower surface.The gravel of major diameter can collide by the direct non-bore region with screen casing more easily when moving with fluid, produces after shock rebounds away from screen casing, improves the throughput of fluid, it is to avoid the generation of sieve pore blockade phenomenon.
Description
Technical field
The present invention relates to a kind of oil well pump, specifically refer to pneumatic type sand-proof oil-well pump.
Background technology
At present during oil mining, widely used rod pumping pump, whether tubing pump or insert pump are all that pump barrel is connected with oil pipe and fixes, plunger move back and forth in pump barrel with sucker rod and pump.Plunger delivery valve in pump barrel at above two pump is fixed on plunger, and then delivery valve is limited by pump barrel internal diameter, its oil outlet cannot continue to expand, ultimately cause out liquid resistance to increase, therefore the fluid pressure within can cause inlet valve upper end pump chamber when plunger is descending increases and increases fuel tap leakage rate, and rod sag loss plunger effective stroke causes pump efficiency to reduce.And at special oil well, during oil well oil-pumping as big in silt content, substantial amounts of gravel can be carried in fluid be pumped in oil well pump and oil pipe, affect crude oil go out oil quality while, it is also easy to cause holddown phenomenon, now need to examine pump operation frequently, greatly have impact on the normal production of oil well.
Summary of the invention
It is an object of the invention to provide pneumatic type sand-proof oil-well pump, while improving pumping efficiency of oil pump, prevent card sand phenomenon and then reach to protect the purpose of oil well pump.
The purpose of the present invention is achieved through the following technical solutions:
Pneumatic type sand-proof oil-well pump, including driving means and oil pipe, driving means includes closing the inflator arranged and the sucker rod being vertically arranged, cylinder inner wall upper end is fixed with the Flexible Connector being vertically arranged, the upper end of sucker rod is connected through inflator lower end barrel with Flexible Connector, the lower end of sucker rod is positioned at outside inflator, and sucker rod is provided with and the spacer ring that inflator lumen segmentation is epicoele and cavity of resorption, inflator barrel can be provided with the breather line connected with cavity of resorption；Plunger it is fixed with in oil pipe, matched pump barrel it is arranged with on plunger, the top of pump barrel is connected with the lower end of sucker rod, T-shaped runner it is provided with in described plunger, and the two ends of described T-shaped runner horizontal part run through oil pipe and connect with the inside of sleeve pipe, described pump barrel is provided with oil outlet and nozzle opening A, oil outlet connects by delivery valve is internal with nozzle opening A and oil pipe, described plunger is provided with nozzle opening B and fuel feed hole, fuel feed hole connects by inlet valve is internal with nozzle opening B and pump barrel, is fixed with sand-precipitating tube in the bottom of described oil pipe by screw；Being arranged with screen casing on the outer wall of oil pipe, screen casing is covered in the two ends of T-shaped runner horizontal part, and the cross section of described screen casing is waveform, and the crest in screen casing upper surface arranges sieve aperture with the trough point-to-point transmission of its lower surface.
When the present invention works, breather line connects with air supply source, can be provided with high pressure supercharging air pump compressed air is carried out pressurized treatment at source of the gas.When supplying to cavity of resorption, owing to cavity of resorption pressure increases, thus spacer ring then can overcome the supporting role of Flexible Connector to move up, the most then drive sucker rod also to move up；And when air supply source air-breathing, owing to cavity of resorption pressure reduces, add the supporting role of Flexible Connector, spacer ring then can accordingly move downward, the most then sucker rod can be driven also to move down.Pump barrel then moves reciprocatingly with sucker rod, is pumped out by the fluid in sleeve pipe by the pressure change produced between plunger and pump barrel.When up stroke, sucker rod drives pump barrel to move upward, and is closed by delivery valve after the load of pump barrel upper end fluid column, and the volume within pump barrel increases, and pressure reduces, the fluid in sleeve pipe enters in T-shaped runner, forms the impact to inlet valve, inlet valve is opened, and fluid enters in pump barrel smoothly；When down stroke, sucker rod drives pump barrel to move downward, and the inlet valve loaded by fluid column cuts out, and the volume in pump barrel reduces, and pressure increases, and forms the impact to delivery valve, and delivery valve is opened, and the fluid in pump barrel is discharged in the oil pipe of pump barrel upper end.Moved back and forth the most off and on by pump barrel itself, prevent the sand setting in a large amount of sleeve pipe from entering in pump barrel, avoid fallen sand accumulation in pump barrel upper end simultaneously, the gravel of pump barrel upper end oil pipe is entered into then by the annular space free subsidence between pump barrel and oil pipe to the sand-precipitating tube of oil pipe lower end by pump barrel, and then reduce the damage of sucker rod, improve the efficiency of oil recovery；
And plunger is provided with T-shaped runner, rather than the vertical run generally used, make in pump barrel up stroke, fluid in sleeve pipe is entered by the two ends of its T-shaped runner horizontal part, and two strands of fluid fluids itself are from certain kinetic energy, by converging in T-shaped runner vertical portion and horizontal part junction, the gravel moved with fluid is collided, reduce its speed of service, and during being entered in pump barrel by T-shaped runner vertical portion, speed difference is formed between sand setting and fluid, and start to sink under the effect of sand setting self gravitation, and then come back in sleeve pipe, thus greatly reduce the sand setting amount entered in pump barrel, the pump efficiency making pump barrel is guaranteed.
For the oil well that sand content is big, being arranged with screen casing at the two ends of T-shaped runner horizontal part, the gravel of major diameter can be blocked in outside oil pipe by screen casing, it is to avoid in T-shaped runner, gravel is piled up and too much entered in pump barrel with fluid；And the cross section of screen casing is waveform, screen casing is increased with the fluid contact area in sleeve pipe, ensure the fluid quantity delivered that pump barrel is enough when up stroke, and sieve aperture is arranged between the crest of screen casing upper surface and 2, the trough of its lower surface, therefore the gravel of major diameter can collide by the direct non-bore region with screen casing more easily when moving with fluid, produce after shock rebounds away from screen casing, improve the throughput of fluid, it is to avoid the generation of sieve pore blockade phenomenon.
Further, also include that multiple flow-stopping plate, multiple described flow-stopping plates ringwise and are fixed on the lower end inner wall of oil pipe.When pump barrel down stroke, the fluid layer that can drive the annular region generation fluid between pump barrel and oil pipe changes, i.e. up by the fluid ejected in pump barrel, above former pump barrel, the fluid column near tube inner wall part is descending, and then the fluid below drive oil pipe produces wadding stream, and it is deposited on the sand content that the gravel below oil pipe easily rises along tubing wall and then increases above pump barrel in fluid, the present invention installs multiple flow-stopping plates in the lower end of tube inner wall, flow-stopping plate can block the plunger when pump barrel is descending and be mapped to the fluid column generation wadding stream in region on tube inner wall, and then avoid the gravel in sand-precipitating tube to stir, improve the quality of pumping fluid.
For by balance epicoele in air pressure so that realizing spacer ring moving up and down relative to inflator, further, described inflator barrel is provided with the passage making described epicoele be in communication with the outside.
For alleviating the weight of sucker rod so that it does moving up and down of relative inflator, further, described sucker rod is hollow structure, and is coaxially disposed with described inflator.
The present invention compared with prior art, has such advantages as and beneficial effect:
1, the present invention can brake spacer ring moving up and down relative to inflator by breather line to cavity of resorption supply or air-breathing, thus can effectively drive sucker rod to drive pump barrel to move up and down, and the pressure change between plunger and pump barrel is thus brought to be pumped out by the fluid in sleeve pipe.
2, the present invention is provided with T-shaped runner at plunger, can make to be formed between sand setting and fluid speed difference so that sand setting sinks under the effect of self gravitation and comes back in sleeve pipe, thus greatly reduce the sand setting amount entered in pump barrel so that the pump efficiency of pump barrel is guaranteed.
3, the cross section of the screen casing of the present invention is waveform, screen casing is increased with the fluid contact area in sleeve pipe, ensure the fluid quantity delivered that pump barrel is enough when up stroke, and sieve aperture is arranged between the crest of screen casing upper surface and 2, the trough of its lower surface, therefore the gravel of major diameter can collide by the direct non-bore region with screen casing more easily when moving with fluid, produce after shock rebounds away from screen casing, improve the throughput of fluid, it is to avoid the generation of sieve pore blockade phenomenon.
4, the present invention installs multiple flow-stopping plates in the lower end of tube inner wall, and flow-stopping plate can block the plunger when pump barrel is descending and be mapped to the fluid column generation wadding stream in region on tube inner wall, and then avoids the gravel in sand-precipitating tube to stir, and improves the quality of pumping fluid.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by the embodiment of the present invention, constitutes the part of the application, is not intended that the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of one specific embodiment of pneumatic type sand-proof oil-well pump of the present invention；
Fig. 2 is the structural representation of one specific embodiment of inflator in pneumatic type sand-proof oil-well pump of the present invention；
Fig. 3 is the structural representation of one specific embodiment of screen casing in pneumatic type sand-proof oil-well pump of the present invention.
Labelling and corresponding parts title in accompanying drawing: 1, sucker rod, 2, nozzle opening A, 3, delivery valve, 4, oil outlet, 5, pump barrel, 6, nozzle opening B, 7, inlet valve, 8, fuel feed hole, 9, plunger, 10, T-shaped runner, 11, screen casing, 12, flow-stopping plate, 13, screw, 14, sand-precipitating tube, 15, sieve aperture, 16-oil pipe, 17, breather line, 18, inflator, 19, epicoele, 20, cavity of resorption, 21, spacer ring, 22, Flexible Connector.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, and the exemplary embodiment of the present invention and explanation thereof are only used for explaining the present invention, not as a limitation of the invention.
Embodiment 1
As shown in Figure 1 to Figure 3, pneumatic type sand-proof oil-well pump, including driving means and oil pipe 16, driving means includes closing the inflator 18 arranged and the sucker rod 1 being vertically arranged, inflator 18 inwall upper end is fixed with the Flexible Connector 22 being vertically arranged, the upper end of sucker rod 1 is connected through inflator 18 lower end barrel with Flexible Connector 22, the lower end of sucker rod 1 is positioned at outside inflator 18, sucker rod 1 is provided with and the spacer ring 21 that inflator 18 lumen segmentation is epicoele 19 and cavity of resorption 20, inflator 18 barrel can be provided with the breather line 17 connected with cavity of resorption 20；Plunger 9 it is fixed with in oil pipe 16, matched pump barrel 5 it is arranged with on plunger 9, the top of pump barrel 5 is connected with the lower end of sucker rod 1, it is provided with T-shaped runner 10 in described plunger 9, and the two ends of described T-shaped runner 10 horizontal part run through oil pipe 16 and connect with the inside of sleeve pipe, described pump barrel 5 is provided with oil outlet 4 and nozzle opening A2, oil outlet 4 connects by delivery valve 3 is internal with nozzle opening A2 and oil pipe 16, described plunger 9 is provided with nozzle opening B6 and fuel feed hole 8, fuel feed hole 8 connects by inlet valve 7 is internal with nozzle opening B6 and pump barrel 5, it is fixed with sand-precipitating tube 14 by screw 13 in the bottom of described oil pipe 16；Being arranged with screen casing 11 on the outer wall of oil pipe 16, screen casing 11 is covered in the two ends of T-shaped runner 10 horizontal part, and the cross section of described screen casing 11 is waveform, arranges sieve aperture 15 at the crest of screen casing 11 upper surface and the trough point-to-point transmission of its lower surface.
When the present invention works, breather line 17 connects with air supply source, can be provided with high pressure supercharging air pump compressed air is carried out pressurized treatment at source of the gas.When supplying to cavity of resorption 20, owing to cavity of resorption pressure increases, thus spacer ring 21 then can overcome the supporting role of Flexible Connector 22 to move up, the most then drive sucker rod 1 also to move up；And when air supply source air-breathing, owing to cavity of resorption 20 pressure reduces, add the supporting role of Flexible Connector 22, spacer ring 21 then can accordingly move downward, the most then sucker rod 1 can be driven also to move down.Pump barrel 5 then moves reciprocatingly with sucker rod 1, is pumped out by the fluid in sleeve pipe by the pressure change produced between plunger 9 and pump barrel 5.Pump barrel 5 moves reciprocatingly with sucker rod 1, by the pressure change produced between plunger 9 and pump barrel 5, the fluid in sleeve pipe is pumped out, when up stroke, sucker rod 1 drives pump barrel 5 to move upward, being closed by delivery valve 3 after the load of pump barrel 5 upper end fluid column, the volume within pump barrel 5 increases, and pressure reduces, fluid in sleeve pipe enters in T-shaped runner 10, forming the impact to inlet valve 7, inlet valve 7 is opened, and fluid enters in pump barrel 5 smoothly；When down stroke, sucker rod 1 drives pump barrel 5 to move downward, and the inlet valve 7 loaded by fluid column cuts out, and the volume in pump barrel 5 reduces, and pressure increases, forming the impact to delivery valve 3, delivery valve 3 is opened, and the fluid in pump barrel 5 is discharged in the oil pipe 16 of pump barrel 5 upper end.Itself moved back and forth the most off and on by pump barrel 5, prevent the sand setting in a large amount of sleeve pipe from entering in pump barrel 5, avoid fallen sand accumulation in pump barrel 5 upper end simultaneously, the gravel of pump barrel 5 upper end oil pipe 16 is entered into then by the annular space free subsidence between pump barrel 5 and oil pipe 16 to the sand-precipitating tube 14 of oil pipe 16 lower end by pump barrel 5, and then reduce the damage of sucker rod 1, improve the efficiency of oil recovery；And plunger 9 is provided with T-shaped runner 10, rather than the vertical run generally used, make in pump barrel 5 up stroke, fluid in sleeve pipe is entered by the two ends of its T-shaped runner 10 horizontal part, and two strands of fluid fluids itself are from certain kinetic energy, by converging in T-shaped runner 10 vertical portion and horizontal part junction, the gravel moved with fluid is collided, reduce its speed of service, and during being entered in pump barrel 5 by T-shaped runner 10 vertical portion, speed difference is formed between sand setting and fluid, and start to sink under the effect of sand setting self gravitation, and then come back in sleeve pipe, thus greatly reduce the sand setting amount entered in pump barrel 5, the pump efficiency making pump barrel 5 is guaranteed.
Being arranged with screen casing 11 on the outer wall of described oil pipe 16, described screen casing 11 is covered in the two ends of T-shaped runner 10 horizontal part, and the cross section of described screen casing 11 is waveform, arranges sieve aperture 15 at the crest of screen casing 11 upper surface and the trough point-to-point transmission of its lower surface.For the oil well that sand content is big, being arranged with screen casing 11 at the two ends of T-shaped runner 10 horizontal part, the gravel of major diameter can be blocked in outside oil pipe 16 by screen casing 11, it is to avoid in T-shaped runner 10, gravel is piled up and too much entered in pump barrel 5 with fluid；And the cross section of screen casing 11 is waveform, screen casing 11 is increased with the fluid contact area in sleeve pipe, ensure the fluid quantity delivered that pump barrel 5 is enough when up stroke, and sieve aperture 15 is arranged between the crest of screen casing 11 upper surface and 2, the trough of its lower surface, therefore the gravel of major diameter can collide by the direct non-bore region with screen casing 11 more easily when moving with fluid, produce after shock rebounds away from screen casing 11, improve the throughput of fluid, it is to avoid the generation of sieve aperture 15 clogging.
When pump barrel 5 down stroke, the fluid layer that can drive the annular region generation fluid between pump barrel 5 and oil pipe 16 changes, i.e. up by the fluid ejected in pump barrel 5, above former pump barrel 5, the fluid column near oil pipe 16 inner wall section is descending, and then drive the fluid below oil pipe 16 to produce wadding stream, and it is deposited on the sand content that the gravel below oil pipe 16 easily rises along oil pipe 16 wall and then increases above pump barrel 5 in fluid, the present invention installs multiple flow-stopping plates 12 in the lower end of oil pipe 16 inwall, flow-stopping plate 12 can block the plunger 9 when pump barrel 5 is descending and be mapped to the fluid column generation wadding stream in region on oil pipe 16 inwall, and then avoid the gravel in sand-precipitating tube 14 to stir, improve the quality of pumping fluid.
Above content is to combine the further description that the present invention is made by concrete preferred implementation, it is impossible to assert that the detailed description of the invention of the present invention is confined to these explanations.For general technical staff of the technical field of the invention, other embodiments drawn under without departing from technical scheme, should be included in protection scope of the present invention.
Claims (4)
1. pneumatic type sand-proof oil-well pump, it is characterized in that: include driving means and oil pipe (16), driving means includes closing the inflator (18) arranged and the sucker rod (1) being vertically arranged, inflator (18) inwall upper end is fixed with the Flexible Connector (22) being vertically arranged, the upper end of sucker rod (1) is connected through inflator (18) lower end barrel with Flexible Connector (22), the lower end of sucker rod (1) is positioned at inflator (18) outward, sucker rod (1) is provided with can be by spacer ring (21) that inflator (18) lumen segmentation is epicoele (19) and cavity of resorption (20), inflator (18) barrel is provided with the breather line (17) connected with cavity of resorption (20)；nullPlunger (9) it is fixed with in oil pipe (16)，Matched pump barrel (5) it is arranged with on plunger (9)，The top of pump barrel (5) is connected with the lower end of sucker rod (1)，T-shaped runner (10) it is provided with in described plunger (9)，And the two ends of described T-shaped runner (10) horizontal part run through oil pipe (16) and connect with the inside of sleeve pipe，Described pump barrel (5) is provided with oil outlet (4) and nozzle opening A(2)，Oil outlet (4) pass through delivery valve (3) and nozzle opening A(2) and oil pipe (16) inside connect，Described plunger (9) is provided with nozzle opening B(6) and fuel feed hole (8)，Fuel feed hole (8) pass through inlet valve (7) and nozzle opening B(6) and pump barrel (5) inside connect，It is fixed with sand-precipitating tube (14) by screw (13) in the bottom of described oil pipe (16)；Screen casing (11) it is arranged with on the outer wall of oil pipe (16), screen casing (11) is covered in the two ends of T-shaped runner (10) horizontal part, and the cross section of described screen casing (11) is waveform, sieve aperture (15) is set at the crest of screen casing (11) upper surface and the trough point-to-point transmission of its lower surface.
Pneumatic type sand-proof oil-well pump the most according to claim 1, it is characterised in that: also include that multiple flow-stopping plate (12), multiple described flow-stopping plates (12) ringwise and are fixed on the lower end inner wall of oil pipe (16).
Pneumatic type sand-proof oil-well pump the most according to claim 1, it is characterised in that: described inflator (18) barrel is provided with the passage (24) making described epicoele (19) be in communication with the outside.
4. according to the pneumatic type sand-proof oil-well pump described in any one in claim 1 ~ 3, it is characterised in that: described sucker rod (1) is hollow structure, and is coaxially disposed with described inflator (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510136124.7A CN106150989A (en) | 2015-03-26 | 2015-03-26 | Pneumatic type sand-proof oil-well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510136124.7A CN106150989A (en) | 2015-03-26 | 2015-03-26 | Pneumatic type sand-proof oil-well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106150989A true CN106150989A (en) | 2016-11-23 |
Family
ID=57339404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510136124.7A Pending CN106150989A (en) | 2015-03-26 | 2015-03-26 | Pneumatic type sand-proof oil-well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106150989A (en) |
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2015
- 2015-03-26 CN CN201510136124.7A patent/CN106150989A/en active Pending
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Application publication date: 20161123 |