CN203730269U - Parallel dual-cavity sand pump - Google Patents
Parallel dual-cavity sand pump Download PDFInfo
- Publication number
- CN203730269U CN203730269U CN201420143935.0U CN201420143935U CN203730269U CN 203730269 U CN203730269 U CN 203730269U CN 201420143935 U CN201420143935 U CN 201420143935U CN 203730269 U CN203730269 U CN 203730269U
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- China
- Prior art keywords
- pump
- plunger
- valve
- upper pump
- outer tube
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- Expired - Fee Related
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Abstract
A parallel dual-cavity sand pump is characterized in that a lower pump discharge valve is arranged at the lower part of a lower pump plunger; a lower pump entering valve is arranged at the lower part of a lower pump drum; an upper pump drum, an outer pipe upper joint, an outer pipe, an outer pipe lower joint and a tail pipe joint are connected in sequence; the upper part of the lower pump drum is in threaded connection with the lower part of the outer pipe upper joint; an upper plunger pump, an upper shunt drum and a lower pump plunger are connected in sequence; an upper pump discharge valve is arranged in the shunt drum; a lower shunt drum is connected with an outer pipe lower joint; the upper end of the lower shunt drum is inserted into the lower part of the lower pump entering valve; the lower part of the lower shunt drum is connected with the upper pump entering valve; an upper pump entering channel, an upper pump entering annular space, an upper pump flow entering hole, an upper pump flow entering cavity, an upper pump discharging channel, an upper pump plunger inner hole, a total drainage hole are communicated; an annular runner, a lower pump entering channel and a lower pump flow entering cavity are communicated; liquid charging and discharging can be performed during the upper and lower strokes, the sand pumping process is continuous, a sand-contained liquid flow does not stop, sand particles are not freely settled, accumulated sands at the well bottom can be thoroughly eliminated and an oil water well can be enabled to normally produce.
Description
Technical field
The utility model is the equipment that oil pumping in oil fields is used, and is a kind of parallel-type double-cavity sand pump.
Background technique
Sand in oil/water well stratum can be carried out by liquid stream, and what have can flow to and reach ground with liquid, and some meetings deposit in pit shaft, fall into the shaft bottom of oil/water well, after falling into the sand in oil/water well shaft bottom and increasing, sand can bury oil-water-layer, plugging fluid circulation road, makes oil/water well in end-of-life state.Produce in order to recover oil/water well, must the sand that fall into shaft bottom be removed clean.The way of removing at present shaft bottom sand is to adopt liquid stream sand washing method and pump to take out two kinds of methods.Employing liquid stream sand washing method sandy liquid rushes sand from oil pipe afterbody, in inflow stratum, sand can not return out ground, and the sand that enters stratum can flow out again formation influence in oil/water well production process to be produced.Adopt the pump method of taking out also to have some problems; Chinese patent application 01250864.0 " a kind of high-efficiency oil well bailing device "; can take out part sand; but affected by sand fallout factor; although tubing string is very long under pump, because pump is only at upstroke pumping sand-laden fluid body, the sand-laden fluid stream state that seizes up when down stroke;, often there is the problem that sand buried end valve cannot continue to take out sand in sand grains meeting free settling.
Summary of the invention
The purpose of this utility model is a kind of parallel-type double-cavity sand pump of design, overcomes in prior art the deficiency of can only upstroke taking out sand down stroke and can not take out sand, makes its up-down stroke can take out sand.
The purpose of this utility model is achieved in that and comprises lower pump barrel, lower pump plunger, lower pump outlet valve, lower pump enters valve, lower pump plunger fitted seal in lower pump barrel, lower pump outlet valve is installed in lower pump plunger bottom, lower pump barrel bottom is installed lower pump and is entered valve, also comprise pump plunger, upper pump barrel, outer tube upper connection, outer tube, upper pump outlet valve, upper shunt cylinder, outer tube lower contact, lower shunt cylinder, upper pump enters valve, tail tube joint, upper pump barrel, outer tube upper connection, outer tube, outer tube lower contact, tail tube joint connects successively, upper pump plunger is fitted seal in upper pump barrel, lower pump barrel top is connected with outer tube upper connection lower internal thread, upper pump plunger, upper shunt cylinder, lower pump plunger connects successively, in upper shunt cylinder, install pump outlet valve, on lower shunt cylinder, screw thread is connected with outer tube lower contact lower internal thread, lower shunt cylinder upper end is inserted lower pump and is entered in valve bottom, lower shunt cylinder
Bottom enters valve with upper pump and is connected, total drain hole is arranged at upper pump plunger top, upper pump flow-in hole is arranged at lower pump barrel top, between outer tube and lower pump barrel, there is upper pump to enter annular space, between upper pump plunger and lower pump barrel, there is upper pump influent stream chamber, on upper shunt cylinder, there is upper pump discharge route, on upper shunt cylinder, there is lower pump discharge route, under lower pump outlet valve, there is lower pump influent stream chamber, on lower shunt cylinder, there is lower pump inlet passage, on lower shunt cylinder, there is upper pump inlet passage, upper pump enters valve, between tail tube joint, there is circulation road, upper pump inlet passage, upper pump enters annular space, upper pump flow-in hole, upper pump influent stream chamber, upper pump discharge route, upper pump plunger endoporus, total drain hole communicates, this passage is separated by upper pump outlet valve, liquid stream can only be up can not be descending, circulation road, lower pump inlet passage enters valve through lower pump and communicates with lower pump influent stream chamber.
The beneficial effects of the utility model are: when upstroke: upper pump influent stream chamber reduces discharge opeing, lower pump influent stream chamber increases feed liquor, when down stroke: upper pump influent stream chamber increases feed liquor, and lower pump influent stream chamber reduces discharge opeing, therefore, can feed liquor when up-down stroke, discharge opeing, take out sand process successive, sand-laden fluid stream can not pause, sand grains can free settling, bottom valve under the utility model can not buried by sand, can thoroughly remove the long-pending sand in shaft bottom, and oil/water well is normally produced.
Brief description of the drawings
Accompanying drawing 1 is the utility model embodiment's erection drawing.
Embodiment
Below in conjunction with accompanying drawing 1, embodiment of the present utility model is described.
Embodiment of the present utility model is by upper pump plunger 1, upper pump barrel 2, outer tube upper connection 3, outer tube 4, upper pump outlet valve 5, upper shunt cylinder 6, lower pump barrel 7, lower pump plunger 8, lower pump outlet valve 9, lower pump enters valve 10, outer tube lower contact 11, lower shunt cylinder 12, upper pump enters valve 13, tail tube joint 14 forms, and lower pump plunger 8 is in the interior fitted seal of lower pump barrel 7, and lower pump outlet valve 9 is installed in lower pump plunger 8 bottoms, and lower pump barrel 7 bottoms are installed lower pump and entered valve 10, upper pump barrel 2, outer tube upper connection 3, outer tube 4, outer tube lower contact 11, tail tube joint 14 connects successively, and upper pump plunger 1 is in the interior fitted seal of upper pump barrel 2, and lower pump barrel 7 tops are connected with outer tube upper connection 3 lower internal thread, upper pump plunger 1, upper shunt cylinder 6, lower pump plunger 8 connects successively, in upper shunt cylinder 6, install pump outlet valve 5, on lower shunt cylinder 12, screw thread is connected with outer tube lower contact 11 lower internal thread, lower shunt cylinder 12 upper ends are inserted lower pump and are entered in valve 10 bottoms, lower shunt cylinder 12 bottoms enter valve 13 with upper pump and are connected, total drain hole 15 is arranged at upper pump plunger 1 top, and upper pump flow-in hole 16 is arranged at lower pump barrel 7 tops, between outer tube 4 and lower pump barrel 7, has upper pump to enter annular space
17, between upper pump plunger 1 and lower pump barrel 7, there is upper pump influent stream chamber 18, on upper shunt cylinder 6, there is upper pump discharge route 19, on upper shunt cylinder 6, there is lower pump discharge route 20, under lower pump outlet valve 9, there is lower pump influent stream chamber 21, on lower shunt cylinder 12, there is lower pump inlet passage 22, on lower shunt cylinder 12, there is upper pump inlet passage 23, upper pump enters valve 13, between tail tube joint 14, there is circulation road 24, upper pump inlet passage 23, upper pump enters annular space 17, upper pump flow-in hole 16, upper pump influent stream chamber 18, upper pump discharge route 19, upper pump plunger 1 endoporus, total drain hole 15 communicates, this passage is separated by upper pump outlet valve 5, liquid stream can only be up can not be descending, circulation road 24, lower pump inlet passage 22 enters valve 10 through lower pump and communicates with lower pump influent stream chamber 21.
When upstroke: upper pump influent stream chamber 18 reduces, lower pump influent stream chamber 21 increases, flow through upper pump discharge route 19, upper pump outlet valve 5, upper pump plunger 1 endoporus, total drain hole 15 of liquid in upper pump influent stream chamber 18 drains in sleeve pipe, meanwhile, under pump, flow through circulation road 24, lower pump inlet passage 22, lower pump of liquid enters valve 10 and enters in lower pump influent stream chamber 21; When down stroke: upper pump influent stream chamber 18 increases, lower pump influent stream chamber 21 reduces, the flow through endoporus of lower pump outlet valve 9, lower pump discharge route 20, upper pump plunger 1, total drain hole 15 of the liquid in lower pump influent stream chamber 21 drains in sleeve pipe, meanwhile, under pump, the liquid upper pump of flowing through enters that valve 13, upper pump inlet passage 23, upper pump enter annular space 17, upper pump flow-in hole 16 enters pump influent stream chamber 18.Therefore, can feed liquor when up-down stroke, discharge opeing, take out sand process successive.
Total drain hole 15 can be opened on the joint being connected on upper pump plunger 1 top and with upper pump plunger 1, also can set up separately screen casing and make itself and sleeve pipe UNICOM.
Claims (1)
1. a parallel-type double-cavity sand pump, comprises lower pump barrel (7), lower pump plunger (8), lower pump outlet valve (9), lower pump enters valve (10), and lower pump plunger (8) is fitted seal in lower pump barrel (7), and lower pump outlet valve (9) is installed in lower pump plunger (8) bottom, and lower pump barrel (7) bottom is installed lower pump and entered valve (10), it is characterized in that: also comprise pump plunger (1), upper pump barrel (2), outer tube upper connection (3), outer tube (4), upper pump outlet valve (5), upper shunt cylinder (6), outer tube lower contact (11), lower shunt cylinder (12), upper pump enters valve (13), tail tube joint (14), upper pump barrel (2), outer tube upper connection (3), outer tube (4), outer tube lower contact (11), tail tube joint (14) connects successively, and upper pump plunger (1) is fitted seal in upper pump barrel (2), and lower pump barrel (7) top is connected with outer tube upper connection (3) lower internal thread, upper pump plunger (1), upper shunt cylinder (6), lower pump plunger (8) connects successively, in upper shunt cylinder (6), install pump outlet valve (5), the upper screw thread of lower shunt cylinder (12) is connected with outer tube lower contact (11) lower internal thread, lower shunt cylinder (12) upper end is inserted lower pump and is entered in valve (10) bottom, lower shunt cylinder (12) bottom enters valve (13) with upper pump and is connected, total drain hole (15) is arranged at upper pump plunger (1) top, upper pump flow-in hole (16) is arranged at lower pump barrel (7) top, between outer tube (4) and lower pump barrel (7), there is upper pump to enter annular space (17), between upper pump plunger (1) and lower pump barrel (7), there is upper pump influent stream chamber (18), on upper shunt cylinder (6), there is upper pump discharge route (19), on upper shunt cylinder (6), there is lower pump discharge route (20), under lower pump outlet valve (9), there is lower pump influent stream chamber (21), on lower shunt cylinder (12), there is lower pump inlet passage (22), on lower shunt cylinder (12), there is upper pump inlet passage (23), upper pump enters valve (13), between tail tube joint (14), there is circulation road (24), upper pump inlet passage (23), upper pump enters annular space (17), upper pump flow-in hole (16), upper pump influent stream chamber (18), upper pump discharge route (19), upper pump plunger (1) endoporus, total drain hole (15) communicates, and this passage is separated by upper pump outlet valve (5), liquid stream can only be up can not be descending, circulation road (24), lower pump inlet passage (22) enters valve (10) through lower pump and communicates with lower pump influent stream chamber (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420143935.0U CN203730269U (en) | 2014-03-28 | 2014-03-28 | Parallel dual-cavity sand pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420143935.0U CN203730269U (en) | 2014-03-28 | 2014-03-28 | Parallel dual-cavity sand pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203730269U true CN203730269U (en) | 2014-07-23 |
Family
ID=51200348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420143935.0U Expired - Fee Related CN203730269U (en) | 2014-03-28 | 2014-03-28 | Parallel dual-cavity sand pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203730269U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109505550A (en) * | 2018-10-29 | 2019-03-22 | 东营市鑫聚合石油科技有限责任公司 | A kind of two-tube annular space sand setting sand-bailing equipment and technique |
| US11525348B2 (en) | 2020-07-02 | 2022-12-13 | Saudi Arabian Oil Company | Downhole solids handling in wells |
-
2014
- 2014-03-28 CN CN201420143935.0U patent/CN203730269U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109505550A (en) * | 2018-10-29 | 2019-03-22 | 东营市鑫聚合石油科技有限责任公司 | A kind of two-tube annular space sand setting sand-bailing equipment and technique |
| US11525348B2 (en) | 2020-07-02 | 2022-12-13 | Saudi Arabian Oil Company | Downhole solids handling in wells |
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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: 20140723 Termination date: 20150328 |
|
| EXPY | Termination of patent right or utility model |