CN2434448Y - Rotary plunger oil-well pump - Google Patents
Rotary plunger oil-well pump Download PDFInfo
- Publication number
- CN2434448Y CN2434448Y CN 00201777 CN00201777U CN2434448Y CN 2434448 Y CN2434448 Y CN 2434448Y CN 00201777 CN00201777 CN 00201777 CN 00201777 U CN00201777 U CN 00201777U CN 2434448 Y CN2434448 Y CN 2434448Y
- Authority
- CN
- China
- Prior art keywords
- oil
- screw axis
- plunger
- well pump
- turbine
- 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
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Abstract
The utility model relates to a rotary plunger oil well pump with long lifespan, which is used for mining oil at oil field. The utility model is composed of an upper joint of a connecting short section, a ball hinge, a lower joint of the short section, a screw shaft (or a turbine) with an oil and liquid outlet, an upper traveling valve assembly, a lower traveling valve assembly, a plunger body assembly, a pump barrel, a fixing valve, etc. The upper joint of the connecting short section is provided with external threads to be connected with a sucker rod connecting hoop, and the lower joint of the connecting short section is provided with internal threads to be connected with an upper joint of the screw shaft. The upper joint and the lower joint of the connecting short section are connected by the ball hinge, and screw (or turbine) vanes are arranged on the screw shaft. The lower end of the screw shaft is provided with the oil and liquid outlet, and the oil and liquid outlet and the screw shaft form a certain angle in radial direction. The lower part of the oil and liquid outlet is provided with the structural form of a conventional oil pump.
Description
The utility model belongs to oilfield exploitation long lifetime rotary plunger formula rod pumping pump.
The rod pumping pump of oil field use at present, only exist between its plunger and the pump barrel and axially relatively move, contact position between plunger and the pump barrel is constant in a circumferential direction, in case so eccentric wear appears in a certain surface of contact between plunger and the pump barrel, along with working on of oil well pump, this wear surface will continue to enlarge, wastage is increased, finally cause oil well pump to lose efficacy, cause oil well to stop production, carry out maintenance operation, increased operating cost, reduced oil well output.
The purpose of this utility model is that a kind of rotary plunger oil-well pump will be provided, and avoids occurring the repeated wear (eccentric wear) of above-mentioned a certain surface of contact, prolongs the repair cycle of oil well pump.
The purpose of this utility model is achieved in that it is made up of major components such as connecting pipe nipple upper connection 1, ball pivot 2, pipe nipple lower contact 3, the screw axis that has the fluid tap hole or turbine 4, upper travelling valve assembly 5, lower travelling valve assembly 6, plunger body assembly 7, pump barrel 8, standing valve 9.Connect the pipe nipple upper connection and have outside thread so that connect with rod collar, the lower contact of connection pipe nipple has internal thread and connects with the upper connection of screw axis.Link to each other by ball pivot between the last lower contact of connection pipe nipple.Have spiral or turbine blade on the screw axis, the screw axis lower end is to have the fluid tap hole that radially has 2～8 holes.Part below the fluid tap hole has the structural type (comprising wander up and down valve assembly and plunger body assembly) of conventional oil well pump.
The utility model has designed the screw axis that has the fluid tap hole, and spiral or turbine blade and fluid tap hole are arranged on the screw axis.The axle of its fluid tap hole and radially having a certain degree of screw axis.
Describe concrete structure of the present utility model in detail below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of the rotary plunger oil-well pump that proposes according to the utility model.
Fig. 2 is the generalized section of fluid tap hole on the screw axis in the rotary plunger oil-well pump that proposes according to the utility model.
It is made up of major components such as connecting pipe nipple upper connection 1, ball pivot 2, pipe nipple lower contact 3, the screw axis that has the fluid tap hole or turbine 4, upper travelling valve assembly 5, lower travelling valve assembly 6, plunger body assembly 7, pump barrel 8, standing valve 9.When whole plunger body down stroke, the liquid in the pump barrel is through upper and lower traveling valve,, and arrive the space at screw axis place by the fluid tap hole of screw axis.Further descending along with plunger at liquid during by fluid tap hole and screw axis or turbine blade, because the special construction that itself is had, makes to be subjected to a running torque on the plunger body.Under moment loading, plunger produces the rotation of several angle with respect to pump barrel, continuous work along with oil well pump, in the down stroke process that each dashes, all will produce rotatablely moving of direction unanimity, thereby the face of being worn between plunger and the pump barrel is distributed on the overall circumferential contact face, improved the relative wear environment of plunger and pump barrel, avoided the generation of eccentric wear phenomenon, improved the working life of plunger and pump barrel significantly, prolong the repair cycle of pump widely, saved maintenance effect expense, increased oil well output.In addition, this kind structure also has certain sand control function, contains when working in the husky more serious oil well having, and its effect can be more obvious.
Claims (3)
1. the rotary plunger formula oil well pump of an oil field oil recovery usefulness, it is by connecting pipe nipple upper connection (1), ball pivot (2), pipe nipple lower contact (3), the screw axis or the turbine (4) that have the fluid tap hole, upper travelling valve assembly (5), lower travelling valve assembly (6), plunger body assembly (7), pump barrel body (8), standing valve major components such as (9) is formed, it is characterized in that installing the screw axis (4) that has the fluid tap hole additional above the plunger of conventional oil well pump structure, have helical blade on its axle, screw axis (4) links to each other with rod collar by the last lower contact that connects pipe nipple, connects the last lower contact (1) of pipe nipple, (3) connect with ball pivot (2).
2. rotary plunger oil-well pump according to claim 1 is characterized in that having on the screw axis that links to each other with plunger body or the turbine (4) helical blade or by the fixing turbine blade of nut.
3. rotary plunger formula oil well pump according to claim 1 is characterized in that having on the screw axis (4) the fluid tap hole radially angled with screw axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00201777 CN2434448Y (en) | 2000-01-01 | 2000-01-01 | Rotary plunger oil-well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00201777 CN2434448Y (en) | 2000-01-01 | 2000-01-01 | Rotary plunger oil-well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2434448Y true CN2434448Y (en) | 2001-06-13 |
Family
ID=33570960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00201777 Expired - Fee Related CN2434448Y (en) | 2000-01-01 | 2000-01-01 | Rotary plunger oil-well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2434448Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008148297A1 (en) * | 2007-05-30 | 2008-12-11 | Hongmin Li | A hydraulic oil pump |
| WO2009092189A1 (en) * | 2007-12-24 | 2009-07-30 | Heilongjiang Jiaxin Petrochemical Machinery Co., Ltd. | External valve type hydraulic self-sealing piston oil well pump |
| CN103821461A (en) * | 2014-03-19 | 2014-05-28 | 中国石油大学(华东) | Fin-type self-rotating anti-eccentric sucker rod |
| CN104929928A (en) * | 2015-06-01 | 2015-09-23 | 中国科学院力学研究所 | Oil well pump and manufacturing method thereof |
| CN105089966A (en) * | 2014-05-14 | 2015-11-25 | 中国石油天然气股份有限公司 | Turbocharger for deep oil well pump |
-
2000
- 2000-01-01 CN CN 00201777 patent/CN2434448Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008148297A1 (en) * | 2007-05-30 | 2008-12-11 | Hongmin Li | A hydraulic oil pump |
| WO2009092189A1 (en) * | 2007-12-24 | 2009-07-30 | Heilongjiang Jiaxin Petrochemical Machinery Co., Ltd. | External valve type hydraulic self-sealing piston oil well pump |
| CN103821461A (en) * | 2014-03-19 | 2014-05-28 | 中国石油大学(华东) | Fin-type self-rotating anti-eccentric sucker rod |
| CN103821461B (en) * | 2014-03-19 | 2016-02-10 | 中国石油大学(华东) | Fin formula spinning eccentric wear prevention pumping rod |
| CN105089966A (en) * | 2014-05-14 | 2015-11-25 | 中国石油天然气股份有限公司 | Turbocharger for deep oil well pump |
| CN105089966B (en) * | 2014-05-14 | 2017-07-14 | 中国石油天然气股份有限公司 | Deep-well oil pump turbocharger |
| CN104929928A (en) * | 2015-06-01 | 2015-09-23 | 中国科学院力学研究所 | Oil well pump and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |