CN2782985Y - Liquid column load trasferring - Google Patents
Liquid column load trasferring Download PDFInfo
- Publication number
- CN2782985Y CN2782985Y CN 200520029987 CN200520029987U CN2782985Y CN 2782985 Y CN2782985 Y CN 2782985Y CN 200520029987 CN200520029987 CN 200520029987 CN 200520029987 U CN200520029987 U CN 200520029987U CN 2782985 Y CN2782985 Y CN 2782985Y
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- Prior art keywords
- centralizer
- pump
- oil
- utility
- string
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Abstract
The utility model belongs to the technical field of oil exploitation, which provides a liquid column load transferring device of a tubular pump of an oil exploitation well. The utility model is mainly characterized in that the utility model is composed of a jump valve, etc., the jump valve strings a sucker rod of the tubular pump and is connected between a pump exit and an oil pipe for transferring the load pressure of the liquid column higher than a piston on the device when an oil-well pump is in down stroke. The utility model better solves the problems of underground oil pumping technique existed for a long time, and has the visible advantages that the pressure of an oil exploitation deep well tubular pump is lightened and improved, stroke loss is reduced maximally, the service life of the sucker rod is prolonged, the efficiency of the pump is increased, the yield of oil pumping is increased, etc. The device of the utility model is also suitable for transferring liquid column load to other underground tubular pumps.
Description
Technical field:
The utility model belongs to technical field of petroleum extraction, relates to a kind of oil recovery well tubing pump fluid column load transfer device.
Background technique:
Oil well pipe type oil well pump is in the production run process, and when the pump piston down stroke, standing valve is closed, and the interior fluid column of pump will overcome the interior fluid column resistance of oil pipe discharges from travelling valve, and the above head of liquid load of travelling valve acts on travelling valve and the piston; When up-stroke of piston, travelling valve is closed, and standing valve is opened, and the fluid column load all acts on lifting liquid on the piston in the oil pipe.Oil well pump up and down reciprocatingly, the conversion of each stroke all will have certain loss of plunger stroke, can not be completed effective stroke in the pump in the time at ground transmission operation stroke, in the pump fluid column can not be transformed into fully be drawn out of more than the pump aboveground.Not only cause the minimizing in working life of down-hole tubing pump sucker rod, and the fuel-displaced ability of pump efficiency reduces.
The innovation and creation content:
The designer is in the observation of being engaged in the oil recovery forefront of the production for a long time, the existing the problems referred to above of existing oil recovery technique have been found, purpose is to develop a kind of device that the load of the fluid column on down-hole tubing pump travelling valve and the piston can be shifted, and has existing the problems referred to above of oil recovery technique and defective now to solve preferably and to overcome.
Technical solution adopted in the utility model is, designs a kind of oil recovery well tubing pump fluid column load transfer device, and this apparatus structure comprises: the moving valve of string, centralizer, centralizer seat, connection piece; To cross the tubing pump sucker rod by the utility model device string that said structure is formed, and be connected between pump discharge and the oil pipe, the above fluid column load pressure of piston is transferred to the moving valve bottom surface of string of device when being used for oil recovery well tubing pump down stroke.
After the utility model device is installed, when the tubing pump down stroke of down-hole, the above fluid column load pressure of piston can be transferred on the moving valve bottom surface of string of this device immediately, the moving valve of string is following to be alleviated rapidly apart from the head of liquid between the piston, the travelling valve of down stroke piston is in time opened, fluid column in the pump barrel discharges discharge rapidly from travelling valve in down stroke, the head of liquid of discharging surpasses the moving above fluid column load pressure of valve of string, be connected on the moving valve come-up of string on the sucker rod, the fluid column lifting, reach the pressure that alleviates and improve the oil recovery well tubing pump, reduce loss of plunger stroke to greatest extent, oil well pump piston up and down reciprocatingly stroke is consistent with ground transmission stroke, prolongs sucker rod working life, improves the purpose that pump efficiency increases oil pumping yield.
This oil recovery well tubing pump fluid column load transfer device of the present utility model has simple in structure, easy for installation, solve the existing problem of down-hole pumping technology for a long time preferably, prolonged sucker rod working life, remarkable advantages such as the fuel-displaced ability raising of pump efficiency.
Description of drawings:
Fig. 1 represents the utility model oil recovery well tubing pump fluid column load transfer apparatus structure cross-sectional schematic.
Fig. 2 represents that the utility model device installs and uses (work of oil well pump down stroke) view.
Embodiment:
Further specify concrete structure of the present utility model in conjunction with the accompanying drawings and embodiments, its feature and advantage can be clearer.
Referring to Fig. 1, the embodiment of the utility model oil recovery well tubing pump fluid column load transfer device, its structure comprises: the moving valve 3 of string, centralizer 2, centralizer seat 1, link 4.Wherein, the moving valve 3 of string is hollow cylindrical, be used to be connected in sucker rod, the designer calls the moving valve of string to this new structure: centralizer 2 is hollow truncated cone-shaped, the bottom surface of the moving valve 3 of string is connected with top the contact closely by concave surface of centralizer 2, control with one heart is used for falling back to it immediately after the moving valve of string moves about, and the same core diameter of centralizer 2 is greater than the sucker rod diameter; Centralizer seat 1 outside in a tubular form, inner chamber is the rounding taper type, the rounding frustum of centralizer kiss places the inner chamber of centralizer seat, is used for falling back Instantaneous Control sealing after rise when the moving valve of string, the blocking-up top interior fluid column of oil pipe is loaded.Referring to Fig. 2, centralizer seat 1 external tubular body bottom can be connected with pump discharge 5 by screw thread, and top can be connected with oil pipe 6 by box cupling 4, and the moving valve 3 of string waits this device feature to be connected on the sucker rod 7.
The utility model device is applicable to that also other down-hole tubing pump is to the fluid column load transfer.The utility model device can be formed application as accessory of down-hole tubing pump.
Claims (2)
1, a kind of oil recovery well tubing pump fluid column load transfer device, it is characterized in that structure comprises the moving valve of string, centralizer, the centralizer seat, link, the tubing pump sucker rod of going here and there is connected between pump discharge and the oil pipe, and the above fluid column load pressure of piston is transferred to the wherein moving valve bottom surface of string when being used for oil recovery well tubing pump down stroke.
2, a kind of oil recovery well tubing pump fluid column load transfer device as claimed in claim 1, it is cylindric to it is characterized in that the moving valve of described string is hollow; Described centralizer is the hollow circular cone shape, the bottom surface of the moving valve of string with contact closely by concave surface above the centralizer, control with one heart, the diameter of centralizer is greater than the sucker rod diameter; Described centralizer seat outside in a tubular form, inner chamber is the rounding taper type, the rounding frustum of centralizer kiss places centralizer seat inner chamber, centralizer seat bottom to be provided with screw thread can be connected with pump discharge, top is provided with box cupling and can be connected with oil pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520029987 CN2782985Y (en) | 2005-02-02 | 2005-02-02 | Liquid column load trasferring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520029987 CN2782985Y (en) | 2005-02-02 | 2005-02-02 | Liquid column load trasferring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2782985Y true CN2782985Y (en) | 2006-05-24 |
Family
ID=36767971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520029987 Expired - Fee Related CN2782985Y (en) | 2005-02-02 | 2005-02-02 | Liquid column load trasferring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2782985Y (en) |
-
2005
- 2005-02-02 CN CN 200520029987 patent/CN2782985Y/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060524 |