CN2397282Y - Short plunger oil-well pump - Google Patents
Short plunger oil-well pump Download PDFInfo
- Publication number
- CN2397282Y CN2397282Y CN 99246958 CN99246958U CN2397282Y CN 2397282 Y CN2397282 Y CN 2397282Y CN 99246958 CN99246958 CN 99246958 CN 99246958 U CN99246958 U CN 99246958U CN 2397282 Y CN2397282 Y CN 2397282Y
- Authority
- CN
- China
- Prior art keywords
- short column
- plunger
- column plug
- oil
- short
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model relates to a short plunger injecting and gathering oil pump. A short plunger 1 is arranged in a pump barrel 2, and the length of the short plunger 1 is 1/3 to 2/3 of the length of the primary plunger. The lower end of the short plunger 1 is provided with a plunger valve ball valve seat 5, and a standing valve assembly 3 is arranged below the short plunger 1 in the pump barrel 2. The outer surface of the short plunger 1 is a smooth surface, and the section areas of a flow channel 6 and a flow channel 4 of a plunger valve base are larger 20% to 40% than the primary section areas.
Description
The utility model relates to a kind of short column plug oil-well pump technical field.
At present, when Oilfield using polymer displacement of reservoir oil technology is carried out petroleum production, use common oil well pump, the major defect of its existence is: plunger is long, cross section of fluid channel long-pending little, surface friction drag is big and plunger when descending resistance big, cause rod sag and eccentric wear, cost for oil production is improved and the easy bar accident of breaking that takes place, pump efficiency is low, thereby common oil well pump is not suitable for the oil producing operation of annotating poly-oil well.
The purpose of this utility model is a kind of short column plug oil-well pump of design, adopt the short column plug, outer plunger surface is a smooth surface, and the structural design of long-pending increasing of cross section of fluid channel and single plunger valve ball valve seat is used for field polymers displacement of reservoir oil technology recovers the oil, thereby has overcome above-mentioned shortcoming.
The utility model is achieved in that short column plug 1 in the pump barrel 2, there is plunger valve ball valve seat 5 short column plug 1 lower end, below short column plug 1, standing valve assembly 3 is arranged in the pump barrel 2, and short column plug 1 outer surface is a smooth surface.
The length of short column plug 1 is 1/3～2/3 of former plungers length.
Plunger valve seat runner 6 and the former sectional area of runner 4 sectional area ratios are big by 20%～40%.
The utility model has the advantages that: structural design is simple and reliable, low cost of manufacture, and surface friction drag reduces, and the petroleum fluids flow increases, and has reduced the load of sucker rod and pumping unit.Especially when the oil pumping backhaul, the serious crooked state of sucker rod improves, and has avoided the eccentric wear of sucker rod and the generation of disconnected bar accident.The oil flow channel of big runner has improved the oil recovery efficiency of pump in drag reduction, realize energy-saving and production-increase.The pump structure of drag reduction synergy is applicable to that oil viscosity is big, the sand content height, and descending resistance is big, and polished rod load increases, and the oil well production that poly-displacement of reservoir oil technology is carried out petroleum production is annotated in the employing of rod sag and eccentric wear.
Below in conjunction with accompanying drawing, the utility model is described further with embodiment:
This accompanying drawing is a structural representation of the present utility model.
In the accompanying drawing: 1, short column plug, 2, pump barrel, 3, the standing valve assembly, 4, runner, 5, the plunger valve ball valve seat, 6, plunger valve seat runner.
Short column plug 1 is arranged in the pump barrel 2, the length of short column plug 1 is 1/3～2/3 of former plungers length, there is plunger valve ball valve seat 5 short column plug 1 lower end, below short column plug 1, standing valve assembly 3 is arranged in the pump barrel 2, and short column plug 1 outer surface is a smooth surface, and plunger valve seat runner 6 and the former sectional area of runner 4 sectional area ratios are big by 20%～40%.
Claims (3)
1, a kind of short column plug oil-well pump, it is characterized in that: short column plug (1) is arranged in the pump barrel (2), and there is plunger valve ball valve seat (5) short column plug (1) lower end, in short column plug (1) below, standing valve assembly (3) is arranged in the pump barrel (2), and short column plug (1) outer surface is a smooth surface.
2, a kind of short column plug oil-well pump according to claim 1, it is characterized in that: the length of short column plug (1) is 1/3～2/3 of former plungers length.
3, a kind of short column plug oil-well pump according to claim 1 and 2, it is characterized in that: plunger valve seat runner (6) and the former sectional area of runner (4) sectional area ratio are big by 20%～40%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99246958 CN2397282Y (en) | 1999-11-08 | 1999-11-08 | Short plunger oil-well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99246958 CN2397282Y (en) | 1999-11-08 | 1999-11-08 | Short plunger oil-well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2397282Y true CN2397282Y (en) | 2000-09-20 |
Family
ID=34032485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99246958 Expired - Fee Related CN2397282Y (en) | 1999-11-08 | 1999-11-08 | Short plunger oil-well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2397282Y (en) |
-
1999
- 1999-11-08 CN CN 99246958 patent/CN2397282Y/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 | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIUHUAN PETROLEUM MACHINERY CO., LTD., BINZHOU, SH Free format text: FORMER NAME OR ADDRESS: JIUHUAN ENTERPRISE GROUP CORP., BINZHOU, SHANDONG PROV. |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Binzhou Shandong nine ring Petroleum Machinery Co., Ltd. Patentee before: Jiuhuan Enterprise group Corp., Binzhou, Shandong Prov. |
|
| C56 | Change in the name or address of the patentee |
Owner name: SHANDONG NINE RING PETROLEUM MACHINERY CO., LTD. Free format text: FORMER NAME OR ADDRESS: JIUHUAN PETROLEUM MACHINERY CO., LTD., BINZHOU, SHANDONG PROVINCE |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Jiuhuan Petroleum Machinery Co., Ltd., Shandong Patentee before: Binzhou Shandong nine ring Petroleum Machinery Co., Ltd. |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |