CN204692058U - Pneumatic type sand-proof oil-well pump - Google Patents
Pneumatic type sand-proof oil-well pump Download PDFInfo
- Publication number
- CN204692058U CN204692058U CN201520175193.4U CN201520175193U CN204692058U CN 204692058 U CN204692058 U CN 204692058U CN 201520175193 U CN201520175193 U CN 201520175193U CN 204692058 U CN204692058 U CN 204692058U
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- oil
- oil pipe
- inflator
- sucker rod
- screen casing
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Abstract
The utility model discloses: pneumatic type sand-proof oil-well pump, comprise drive unit and oil pipe, drive unit comprises 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 it can be the spacer ring of epicoele and cavity of resorption by inflator lumen segmentation that sucker rod is provided with; Have plunger at oil pipe internal fixtion, 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 communicated with the inside of sleeve pipe, are fixed with sand-precipitating tube in the bottom of oil pipe by screw; The outer wall of oil pipe being arranged with cross section is corrugated screen casing, and the trough point-to-point transmission of the crest in screen casing upper-end surface and its lower end surface arranges sieve aperture.Large diameter gravel can collide by non-bore region that is direct and screen casing more easily when moving with fluid, away from screen casing after the bounce-back of generation shock, improves the throughput of fluid, avoids the generation of sieve pore blockade phenomenon.
Description
Technical field
The utility model relates to a kind of oil well pump, specifically refers to pneumatic type sand-proof oil-well pump.
Background technique
At present in oil mining process, widely used rod pumping pump, no matter being tubing pump or sucker rod pump is all that pump barrel and oil pipe are connected and fixed, is moved back and forth with sucker rod by plunger and pumps in pump barrel.Be fixed on plunger at plunger outlet valve in pump barrel of above-mentioned two kinds of pumps, and then make outlet valve be subject to the restriction of pump barrel internal diameter, its oil outlet cannot continue to expand, fluid resistance is finally caused to increase, therefore increase fuel tap leakage rate the fluid pressure in the pump chamber of oiling valve upper end can be caused to increase when plunger is descending, rod sag loss plunger effective stroke causes pump efficiency to reduce.And at special oil well, in oil well oil-pumping process as large in sand content, can carry a large amount of gravel in fluid is pumped in oil well pump and oil pipe, affect crude oil go out oil quality while, also easily cause holddown phenomenon, now need to examine pump operation frequently, greatly have impact on the normal production of oil well.
Model utility content
The purpose of this utility model is to provide pneumatic type sand-proof oil-well pump, while raising pumping efficiency of oil pump, prevents card sand phenomenon and then reaches the object protecting oil well pump.
The purpose of this utility model is achieved through the following technical solutions:
Pneumatic type sand-proof oil-well pump, comprise drive unit and oil pipe, drive unit comprises the inflator closed and arrange and the sucker rod vertically arranged, cylinder inner wall upper end is fixed with the Flexible Connector vertically arranged, the upper end of sucker rod is connected through inflator lower end barrel and Flexible Connector, the lower end of sucker rod is positioned at outside inflator, and it can be the spacer ring of epicoele and cavity of resorption by inflator lumen segmentation that sucker rod is provided with, and inflator barrel is provided with the breather line be communicated with cavity of resorption; Oil pipe internal fixtion has plunger, plunger is arranged with the pump barrel coordinated with it, the top of pump barrel is connected with the lower end of sucker rod, T-shaped runner is provided with in described plunger, and the two ends of described T-shaped runner horizontal part are run through oil pipe and are communicated with the inside of sleeve pipe, described pump barrel is provided with oil outlet and nozzle opening A, oil outlet is communicated with nozzle opening A and oil pipe inside by outlet valve, described plunger is provided with nozzle opening B and oil inlet hole, oil inlet hole is communicated with nozzle opening B and pump barrel inside by oiling valve, is fixed with sand-precipitating tube in the bottom of described oil pipe by screw; The outer wall of oil pipe is arranged with screen casing, and 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 trough point-to-point transmission of the crest in screen casing upper-end surface and its lower end surface arranges sieve aperture.
During utility model works, breather line is communicated with air supply source, and source of the gas place can be provided with high pressure supercharging air pump and carry out pressurized treatment to pressurized air.When to cavity of resorption air feed, because cavity of resorption pressure increases, the supporting effect that thus spacer ring then can overcome Flexible Connector moves up, and so then drives sucker rod also to move up; And when air supply source air-breathing, because cavity of resorption pressure reduces, add the supporting effect of Flexible Connector, spacer ring then can correspondingly move down, and sucker rod so then 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 after being subject to the load of pump barrel upper end fluid column, outlet valve cuts out, and the volume of pump barrel inside increases, and pressure reduces, the fluid in sleeve pipe enters into T-shaped runner, forms the impact to oiling valve, oiling valve is opened, and fluid enters in pump barrel smoothly; When down stroke, sucker rod drives pump barrel to move downward, and the oiling valve being subject to fluid column load cuts out, and the volume in pump barrel reduces, and pressure increase, form the impact to outlet valve, outlet valve is opened, and the fluid in pump barrel is discharged in the oil pipe of pump barrel upper end.By pump barrel not to-and-fro motion off and on 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 entering into pump barrel upper end oil pipe by pump barrel then by the annular space free subsidence between pump barrel and oil pipe to the sand-precipitating tube of oil pipe lower end, and then reduce the damage of sucker rod, improve the efficiency of oil recovery;
And plunger is provided with T-shaped runner, but not the vertical run usually adopted, 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 carry certain kinetic energy, by converging in T-shaped runner vertical portion and horizontal part junction, the gravel moved with fluid is collided, reduce its motion speed, and being entered into the process 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, greatly reduce the sand setting amount entered in pump barrel thus, the pump efficiency of pump barrel is guaranteed.
For the oil well that sand content is large, be arranged with screen casing at the two ends of T-shaped runner horizontal part, large diameter gravel can be blocked in outside oil pipe by screen casing, avoids gravel overheap in T-shaped runner and enters in pump barrel with fluid; And the cross section of screen casing is waveform, fluid area of contact in screen casing and sleeve pipe is increased, ensure the fluid delivery volume that pump barrel is enough when up stroke, and sieve aperture is arranged between the crest of screen casing upper-end surface and 2, the trough of its lower end surface, therefore large diameter gravel can collide by non-bore region that is direct and screen casing more easily when moving with fluid, away from screen casing after the bounce-back of generation shock, improve the throughput of fluid, avoid the generation of sieve pore blockade phenomenon.
Further, also comprise multiple flow-stopping plate, multiple described flow-stopping plate ringwise and be fixed on the lower end inner wall of oil pipe.When pump barrel down stroke, can drive the annular space region between pump barrel and oil pipe that the fluid layer variation of fluid occurs, namely up by the fluid ejected in pump barrel, fluid column near tube inner wall part above former pump barrel is descending, and then the fluid below drive oil pipe produces wadding stream, and the gravel be deposited on below oil pipe easily rises along tubing wall and then increase the sand content above pump barrel in fluid, the utility model installs multiple flow-stopping plate in the lower end of tube inner wall, flow-stopping plate can block when pump barrel is descending plunger be mapped to region on tube inner wall fluid column there is wadding stream, 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 realize moving up and down of the relative inflator of spacer ring, further, described inflator barrel is provided with the vent that described epicoele is 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 coaxially arranges with described inflator.
The utility model compared with prior art, has following advantage and beneficial effect:
1, moving up and down of the relative inflator of spacer ring can be braked by breather line to cavity of resorption air feed or air-breathing in the utility model, thus can effectively drive sucker rod to drive pump barrel to move up and down, and bring the pressure change between plunger and pump barrel thus and the fluid in sleeve pipe is pumped out.
2, the utility model is provided with T-shaped runner at plunger, can make to form speed difference between sand setting and fluid, make sand setting sink under the effect of self gravitation and come back in sleeve pipe, greatly reduce the sand setting amount entered in pump barrel thus, the pump efficiency of pump barrel is guaranteed.
3, the cross section of screen casing of the present utility model is waveform, fluid area of contact in screen casing and sleeve pipe is increased, ensure the fluid delivery volume that pump barrel is enough when up stroke, and sieve aperture is arranged between the crest of screen casing upper-end surface and 2, the trough of its lower end surface, therefore large diameter gravel can collide by non-bore region that is direct and screen casing more easily when moving with fluid, away from screen casing after the bounce-back of generation shock, improve the throughput of fluid, avoid the generation of sieve pore blockade phenomenon.
4, the utility model installs multiple flow-stopping plate in the lower end of tube inner wall, flow-stopping plate can block when pump barrel is descending plunger be mapped to region on tube inner wall fluid column there is wadding stream, and then avoid the gravel in sand-precipitating tube to stir, improve the quality of pumping fluid.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide the further understanding to the utility model embodiment, forms a application's part, does not form the restriction to the utility model embodiment.In the accompanying drawings:
Fig. 1 is the structural representation of a pneumatic type sand-proof oil-well pump described in the utility model specific embodiment;
Fig. 2 is the structural representation of an inflator specific embodiment in pneumatic type sand-proof oil-well pump described in the utility model;
Fig. 3 is the structural representation of a screen casing specific embodiment in pneumatic type sand-proof oil-well pump described in the utility model.
Mark and corresponding component title in accompanying drawing: 1, sucker rod, 2, nozzle opening A, 3, outlet valve, 4, oil outlet, 5, pump barrel, 6, nozzle opening B, 7, oiling valve, 8, oil inlet 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.
Embodiment
Clearly understand for making the purpose of this utility model, technological scheme and advantage, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, exemplary embodiment of the present utility model and explanation thereof are only for explaining the utility model, and conduct is not to restriction of the present utility model.
Embodiment 1
As shown in Figure 1 to Figure 3, pneumatic type sand-proof oil-well pump, comprise drive unit and oil pipe 16, drive unit comprises the inflator 18 closed and arrange and the sucker rod 1 vertically arranged, inflator 18 inwall upper end is fixed with the Flexible Connector 22 vertically arranged, the upper end of sucker rod 1 is connected through inflator 18 lower end barrel and Flexible Connector 22, the lower end of sucker rod 1 is positioned at outside inflator 18, it can be the spacer ring 21 of epicoele 19 and cavity of resorption 20 by inflator 18 lumen segmentation that sucker rod 1 is provided with, and inflator 18 barrel is provided with the breather line 17 be communicated with cavity of resorption 20, oil pipe 16 internal fixtion has plunger 9, plunger 9 is arranged with the pump barrel 5 coordinated with it, the top of pump barrel 5 is connected with the lower end of sucker rod 1, T-shaped runner 10 is provided with in described plunger 9, and the two ends of described T-shaped runner 10 horizontal part are run through oil pipe 16 and are communicated with the inside of sleeve pipe, described pump barrel 5 is provided with oil outlet 4 and nozzle opening A2, oil outlet 4 is communicated with nozzle opening A2 and oil pipe 16 inside by outlet valve 3, described plunger 9 is provided with nozzle opening B6 and oil inlet hole 8, oil inlet hole 8 is communicated with nozzle opening B6 and pump barrel 5 inside by oiling valve 7, sand-precipitating tube 14 is fixed with by screw 13 in the bottom of described oil pipe 16, the outer wall of oil pipe 16 is arranged with screen casing 11, 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-end surface and the trough point-to-point transmission of its lower end surface.
During utility model works, breather line 17 is communicated with air supply source, and source of the gas place can be provided with high pressure supercharging air pump and carry out pressurized treatment to pressurized air.When to cavity of resorption 20 air feed, because cavity of resorption pressure increases, thus spacer ring 21 supporting effects that can overcome Flexible Connector 22 move up, and so then drive sucker rod 1 also to move up; And when air supply source air-breathing, because cavity of resorption 20 pressure reduces, add the supporting effect of Flexible Connector 22, spacer ring 21 can correspondingly move down, and sucker rod 1 so then 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, after being subject to the load of pump barrel 5 upper end fluid column, outlet valve 3 cuts out, and the volume of pump barrel 5 inside increases, and pressure reduces, fluid in sleeve pipe enters into T-shaped runner 10, form the impact to oiling valve 7, oiling 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 oiling valve 7 being subject to fluid column load cuts out, and the volume in pump barrel 5 reduces, and pressure increase, form the impact to outlet valve 3, outlet valve 3 is opened, and the fluid in pump barrel 5 is discharged in the oil pipe 16 of pump barrel 5 upper end.By pump barrel 5 not to-and-fro motion off and on itself, 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 entering into pump barrel 5 upper end oil pipe 16 by pump barrel 5 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, 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, but not the vertical run usually adopted, 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 carry 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 motion speed, and being entered into the process 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, greatly reduce the sand setting amount entered in pump barrel 5 thus, the pump efficiency of pump barrel 5 is guaranteed.
The outer wall of described oil pipe 16 is arranged with screen casing 11, and 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-end surface and the trough point-to-point transmission of its lower end surface.For the oil well that sand content is large, be arranged with screen casing 11 at the two ends of T-shaped runner 10 horizontal part, large diameter gravel can be blocked in outside oil pipe 16 by screen casing 11, avoids gravel overheap in T-shaped runner 10 and enters in pump barrel 5 with fluid; And the cross section of screen casing 11 is waveform, screen casing 11 is increased with the fluid area of contact in sleeve pipe, ensure the fluid delivery volume that pump barrel 5 is enough when up stroke, and sieve aperture 15 is arranged between the crest of screen casing 11 upper-end surface and 2, the trough of its lower end surface, therefore large diameter gravel can collide by non-bore region that is direct and screen casing 11 more easily when moving with fluid, away from screen casing 11 after the bounce-back of generation shock, improve the throughput of fluid, avoid the generation of sieve aperture 15 blocking phenomenon.
When pump barrel 5 down stroke, the fluid layer that can drive the annular space region between pump barrel 5 and oil pipe 16 that fluid occurs changes, namely up by the fluid ejected in pump barrel 5, fluid column near oil pipe 16 inner wall section above former pump barrel 5 is descending, and then drive the fluid below oil pipe 16 to produce wadding stream, and the gravel be deposited on below oil pipe 16 easily rises along oil pipe 16 wall and then increase the sand content above pump barrel 5 in fluid, the utility model installs multiple flow-stopping plate 12 in the lower end of oil pipe 16 inwall, flow-stopping plate 12 can block when pump barrel 5 is descending plunger 9 be mapped to region on oil pipe 16 inwall fluid column there is wadding stream, and then avoid the gravel in sand-precipitating tube 14 to stir, improve the quality of pumping fluid.
Above content is the further description done the utility model in conjunction with concrete preferred implementation, can not assert that embodiment of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, not departing from other mode of executions drawn under the technical solution of the utility model, all should be included in protection domain of the present utility model.
Claims (4)
1. pneumatic type sand-proof oil-well pump, it is characterized in that: comprise drive unit and oil pipe (16), drive unit comprises the inflator (18) closed and arrange and the sucker rod (1) vertically arranged, inflator (18) inwall upper end is fixed with the Flexible Connector (22) vertically arranged, the upper end of sucker rod (1) is connected through inflator (18) lower end barrel and Flexible Connector (22), the lower end of sucker rod (1) is positioned at inflator (18) outward, it can be the spacer ring (21) of epicoele (19) and cavity of resorption (20) by inflator (18) lumen segmentation that sucker rod (1) is provided with, inflator (18) barrel is provided with the breather line (17) be communicated with cavity of resorption (20), oil pipe (16) internal fixtion has plunger (9), plunger (9) is arranged with the pump barrel (5) coordinated with it, the top of pump barrel (5) is connected with the lower end of sucker rod (1), T-shaped runner (10) is provided with in described plunger (9), and the two ends of described T-shaped runner (10) horizontal part are run through oil pipe (16) and are communicated with the inside of sleeve pipe, described pump barrel (5) is provided with oil outlet (4) and nozzle opening A(2), oil outlet (4) is by outlet valve (3) and nozzle opening A(2) and oil pipe (16) inside be communicated with, described plunger (9) is provided with nozzle opening B(6) and oil inlet hole (8), oil inlet hole (8) is by oiling valve (7) and nozzle opening B(6) and pump barrel (5) inside be communicated with, sand-precipitating tube (14) is fixed with by screw (13) in the bottom of described oil pipe (16), the outer wall of oil pipe (16) is arranged with screen casing (11), 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-end surface and the trough point-to-point transmission of its lower end surface.
2. pneumatic type sand-proof oil-well pump according to claim 1, is characterized in that: also comprise multiple flow-stopping plate (12), and multiple described flow-stopping plate (12) ringwise and be fixed on the lower end inner wall of oil pipe (16).
3. pneumatic type sand-proof oil-well pump according to claim 1, is characterized in that: described inflator (18) barrel is provided with the vent (24) that described epicoele (19) is in communication with the outside.
4. according to the pneumatic type sand-proof oil-well pump in claim 1 ~ 3 described in any one, it is characterized in that: described sucker rod (1) is hollow structure, and coaxially arrange with described inflator (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520175193.4U CN204692058U (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 |
|---|---|---|---|
| CN201520175193.4U CN204692058U (en) | 2015-03-26 | 2015-03-26 | Pneumatic type sand-proof oil-well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204692058U true CN204692058U (en) | 2015-10-07 |
Family
ID=54232359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520175193.4U Expired - Fee Related CN204692058U (en) | 2015-03-26 | 2015-03-26 | Pneumatic type sand-proof oil-well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204692058U (en) |
-
2015
- 2015-03-26 CN CN201520175193.4U patent/CN204692058U/en not_active Expired - Fee Related
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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: 20151007 Termination date: 20160326 |
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| CF01 | Termination of patent right due to non-payment of annual fee |