CN202228320U - Tandem type three-cavity oil suction pump - Google Patents
Tandem type three-cavity oil suction pump Download PDFInfo
- Publication number
- CN202228320U CN202228320U CN2011203585112U CN201120358511U CN202228320U CN 202228320 U CN202228320 U CN 202228320U CN 2011203585112 U CN2011203585112 U CN 2011203585112U CN 201120358511 U CN201120358511 U CN 201120358511U CN 202228320 U CN202228320 U CN 202228320U
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- pump barrel
- valve
- cavity
- following
- connecting rod
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- Reciprocating Pumps (AREA)
Abstract
The utility model provides a tandem type three-cavity oil suction pump. An upper pump barrel is mounted in an outer barrel; the lower part of the upper pump barrel is connected with a lower pump barrel; a sealing device is arranged between the upper pump barrel and the lower pump barrel; a middle oil delivery valve is mounted between the lower part of the outer barrel and the upper part of the lower pump barrel; a middle communicating hole is formed at the upper part of the lower pump barrel; a middle oil filling valve is mounted between the lower part of the outer barrel and the upper part of the lower pump barrel; the middle oil delivery valve is positioned above the communicating hole; the middle oil filling valve is positioned below the communicating hole; a lower oil filling valve is mounted at the lower part of the lower pump barrel; an oil sucker rod, an upper oil delivery valve, an upper plunger piston, a hollow connecting rod and a lower plunger piston are connected in series; an upper hollow cavity is formed between the upper plunger piston and the sealing device; an upper communicating hole is formed at the upper part of the hollow connecting rod; the upper hollow cavity is communicated with the hollow connecting rod through the upper communicating hole; a middle hollow cavity formed between the sealing device and the lower plunger piston is communicated with the lower part of the middle oil delivery valve through the communicating hole; and a low cavity is formed between the lower plunger piston and the lower oil filling valve. The tandem type three-cavity oil suction pump has the advantages of large displacement, small overall dimension and wide application range, can improve the yield of an oil well, and is suitable for being implemented in an ordinary casing.
Description
Technical field
The utility model relates to the underground equipment that oil field pumping well is used, and is a kind of tandem three chamber oil well pumps.
Background technique
The oil well that has needs big discharge capacity production, and at present big discharge capacity production has two kinds of ways, and a kind of is electric submersible pump production down, and this way investment is high, and power consumption is big, deficiency in economic performance; Another kind of way is big pump production down, because big pump external diameter is big, so this way only is applicable to big sleeve pipe production, sleeve pipe commonly used can not use, and load is big, and the following pump degree of depth is restricted.Therefore, at present big discharge capacity producing well receives technological constraint, not a large amount of enforcement, and greatest benefit has not been given play in the oil field.
Summary of the invention
The purpose of the utility model is a kind of tandem three chamber oil well pumps of design, makes its discharge capacity big, improves oil well output, improves the oilfield economic benefit, and in ordinary casing, implements.
The purpose of the utility model is achieved in that and comprises sucker rod, goes up outlet valve, upper plug, urceolus, goes up pump barrel, hollow connecting rod, seal arrangement, middle outlet valve, middle oiling valve, pump barrel, lower plunger, oiling valve down down, and last pump barrel is contained in the urceolus; Last pump barrel bottom connects pump barrel down, and seal arrangement is arranged between last pump barrel and the following pump barrel, outlet valve in the middle of installing between urceolus bottom and the following pump barrel top; Middle linked hole is arranged at following pump barrel top; Oiling valve in the middle of installing between urceolus bottom and the following pump barrel top, middle outlet valve is on the linked hole, and middle oiling valve is under the linked hole; Oiling valve is down installed in following pump barrel bottom; Sucker rod, last outlet valve, upper plug, hollow connecting rod, lower plunger connect successively, between upper plug and the seal arrangement upper plenum are arranged, and last linked hole is arranged at hollow connecting rod top; Last linked hole makes upper plenum communicate with hollow connecting rod; Between seal arrangement and the lower plunger hollow cavity is arranged, hollow cavity has following cavity by linked hole and middle outlet valve bottom UNICOM between lower plunger and the following oiling valve.
The beneficial effect of the utility model is: upper plenum, hollow cavity, cavity oil pumping are down arranged, and discharge capacity is big, can improve oil well output, improves the oilfield economic benefit, adopts series-mode frame, and boundary dimension is little, is suitable in ordinary casing, implementing, and is applied widely.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with Fig. 1 the embodiment of the utility model is described.
Can know that by figure the embodiment of the utility model comprises sucker rod 1, goes up outlet valve 2, upper plug 3, urceolus 4, go up pump barrel 7, hollow connecting rod 8, seal arrangement 9, middle outlet valve 10, middle oiling valve 12, pump barrel 14, lower plunger 15, oiling valve 17 down down; Last pump barrel 7 is installed in the urceolus 4, and last pump barrel 7 bottoms connect pump barrel 14 down, and seal arrangement 9 is arranged between last pump barrel 7 and the following pump barrel 14; Outlet valve 10 in the middle of installing between urceolus 4 bottoms and following pump barrel 14 tops, middle linked hole 11 is arranged at following pump barrel 14 tops, oiling valve 12 in the middle of installing between urceolus 4 bottoms and following pump barrel 14 tops; Middle outlet valve 10 is on the linked hole 11; Middle oiling valve 12 is under the linked hole 11, and following oiling valve 17 is installed in following pump barrel 14 bottoms, and sucker rod 1, last outlet valve 2, upper plug 3, hollow connecting rod 8, lower plunger 15 connect successively; Between upper plug 3 and the seal arrangement 9 upper plenum 6 is arranged; Last linked hole 5 is arranged at hollow connecting rod 8 tops, and last linked hole 5 makes upper plenum 6 communicate with hollow connecting rod 8, between seal arrangement 9 and the lower plunger 15 hollow cavity 13 is arranged; Hollow cavity 13 has following cavity 16 by linked hole 11 and middle outlet valve 10 bottom UNICOMs between lower plunger 15 and the following oiling valve 17.
Claims (1)
1. tandem three chamber oil well pumps; Comprise sucker rod (1), go up outlet valve (2); Upper plug (3), urceolus (4), go up pump barrel (7), hollow connecting rod (8), seal arrangement (9), middle outlet valve (10), middle oiling valve (12), pump barrel (14), lower plunger (15), oiling valve (17) down down, it is characterized in that: go up pump barrel (7) and be installed in the urceolus (4), pump barrel (14) under last pump barrel (7) bottom connects; Between last pump barrel (7) and the following pump barrel (14) seal arrangement (9) is arranged; Outlet valve (10) in the middle of installing between urceolus (4) bottom and following pump barrel (14) top, middle linked hole (11) is arranged at following pump barrel (14) top, oiling valve (12) in the middle of installing between urceolus (4) bottom and following pump barrel (14) top; Middle outlet valve (10) is on the linked hole (11); Middle oiling valve (12) is under the linked hole (11), and following oiling valve (17) is installed in following pump barrel (14) bottom, and sucker rod (1), last outlet valve (2), upper plug (3), hollow connecting rod (8), lower plunger (15) connect successively; Between upper plug (3) and the seal arrangement (9) upper plenum (6) is arranged; Last linked hole (5) is arranged at hollow connecting rod (8) top, and last linked hole (5) makes upper plenum (6) communicate with hollow connecting rod (8), between seal arrangement (9) and the lower plunger (15) hollow cavity (13) is arranged; Hollow cavity (13) has following cavity (16) by linked hole (11) and middle outlet valve (10) bottom UNICOM between lower plunger (15) and the following oiling valve (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203585112U CN202228320U (en) | 2011-09-20 | 2011-09-20 | Tandem type three-cavity oil suction pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203585112U CN202228320U (en) | 2011-09-20 | 2011-09-20 | Tandem type three-cavity oil suction pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202228320U true CN202228320U (en) | 2012-05-23 |
Family
ID=46078907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203585112U Expired - Fee Related CN202228320U (en) | 2011-09-20 | 2011-09-20 | Tandem type three-cavity oil suction pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202228320U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108049844A (en) * | 2018-01-10 | 2018-05-18 | 北京态金科技有限公司 | Oil rig |
-
2011
- 2011-09-20 CN CN2011203585112U patent/CN202228320U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108049844A (en) * | 2018-01-10 | 2018-05-18 | 北京态金科技有限公司 | Oil rig |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20120920 |