CN2763500Y - Desilting protector for surmerged pump in oil well - Google Patents
Desilting protector for surmerged pump in oil well Download PDFInfo
- Publication number
- CN2763500Y CN2763500Y CN 200520080281 CN200520080281U CN2763500Y CN 2763500 Y CN2763500 Y CN 2763500Y CN 200520080281 CN200520080281 CN 200520080281 CN 200520080281 U CN200520080281 U CN 200520080281U CN 2763500 Y CN2763500 Y CN 2763500Y
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- CN
- China
- Prior art keywords
- oil
- desilting
- ball
- sand setting
- immersed pump
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- 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 desilting protector for an oil immersed pump of an oil well, which belongs to a valve class desilting device in oil wells. The desilting protector for an oil immersed pump of an oil well is composed of an upper and a lower joints, an inner and an outer pipes and a desilting one-way valve. The utility model is characterized in that the upper and the lower joints are respectively arranged on the upper and the lower ends of the outer pipe; the inner pipe is arranged at the central position of the outer pipe; the lower end of the inner pipe is provided with outer threads which are connected with inner threads on the upper end of the lower joint, and the upper end of the inner pipe is provided with the desilting one-way valve, wherein the desilting one-way valve is composed of a ball seat, a ball cover and a valve ball; the lower end of the ball seat and the upper end of the inner pipe are connected by threads, and the upper end of the ball seat and the lower end of the ball cover are connected by threads; an inner cavity of the ball cover is provided with the valve ball; a desilting ring cavity is arranged between the inner and the outer pipes below the desilting one-way valve. When the oil immersed pump is stopped working, the valve ball is fell off on the upper end opening of the ball seat by self weight, and thus desilting in oil liquid on the upper side can be blocked to not enter the oil immersed pump but to enter the desilting ring cavity, and thus the damage of the desilting to the oil immersed pump can be avoided. Thus the service life of the oil immersed pump can be prolonged, and the utility model has the advantages of long term safe operation, maintenance period prolonging and labor and material saving, and is in favor of yield and effect increasing of oil wells.
Description
(1) technical field
The utility model relates to the valve class sand setting device in the oil well, particularly is mounted in the sand setting protector of a kind of check valve-type of oil well oil-immersed pump top.
(2) background technology
Utilizing oil-immersed pump crude oil extraction from oil well, is one of main method of at present domestic and international field produces crude oil.In the crude oil production process,, often need the stopping production termination of pumping owing to maintenance or other reason.If the termination of pumping time is longer, the fluid in the above oil pipe of oil-immersed pump remains static, and the sand grains that contains in the fluid will sink.Part sand setting enters oil-immersed pump, will have influence on its operate as normal, increases wearing and tearing, reduces application life; When sand setting is too many, even sand card accident can take place, the pump maintenance of having had to had both influenced crude output, caused the manpower and materials waste again.Therefore, the protection of the sand control of oil-immersed pump has become the ubiquitous production technology difficult problem in each oil field.By retrieval; there is the patented technology document of sand control protective effect to have tens pieces to oil well pump; " oil well pump sand control installation " (03245288) wherein, " self-cleaning submersible electric pump pit shaft sand control device " (02267919), " electric pump sand setting device " (01266848); can be used as weak relevant documents of the present utility model, but its architectural feature has with the utility model different significantly.
(3) summary of the invention
The purpose of this utility model just is to provide a kind of distinguished oil well oil-immersed pump sand control protector, is installed in the oil-immersed pump top.During oil-immersed pump work, fluid can pass through this sand control protector smoothly; When oil-immersed pump quit work, the sand grains in the oil pipe inner fluid sank to the annular chamber of this sand control protector, can prevent effectively that sand setting from entering oil-immersed pump and causing adverse consequences.
Above-mentioned purpose is realized by following technical proposals:
Oil well oil-immersed pump sand setting protector comprises top connection, lower contact, outer tube, interior pipe and five major parts of sand setting one way valve.It is characterized in that top connection is installed in the upper end of outer tube, lower contact is installed in the lower end of outer tube.Interior pipe places the centre of outer tube.The lower end of interior pipe has external screw thread to be connected with the internal thread of lower contact upper end; The sand setting one way valve is installed in the upper end of interior pipe.The sand setting one way valve is made up of ball seat, ball cover and valve ball.The lower end of ball seat has internal thread to be connected with the external screw thread of interior pipe upper end.The upper end of ball seat and the lower end of ball cover are with being threaded.The inner chamber of ball cover is equipped with valve ball.Between the inner and outer pipe below the sand setting one way valve is the sand setting ring cavity.Cable fixedly protective cradle and wiper block are arranged on the external surface of outer tube.
The ball cover of above-mentioned sand setting one way valve is a round tube shape, and its upper top is the conical cap shape, and its upper half circle has the vertical palisade line of rabbet joint of some fluid overcurrents, and some fluid overcurrent lines of rabbet joint are also arranged on the cap of top on it.
Cable on the external surface of above-mentioned sand setting protector outer tube is protective cradle fixedly, is two blocks of long narrow shape steel plates parallel to each other in the vertically welding, as the fixing protective cradle of the cable of oil-immersed pump.
Wiper block on the external surface of above-mentioned sand setting protector outer tube is two or more than two the little steel plate in the vertically welding, can prevent the serious secund of this sand setting protector.
According to the sand setting protector that the technique scheme processing and manufacturing becomes, the lower end of its lower contact is connected with oil-immersed pump, and the upper end of its top connection is connected with oil pipe.When oil-immersed pump was worked, fluid made progress through its lower contact inner chamber and interior tube cavity, and by the thrust of fluid, the valve ball of jack-up sand setting one way valve, fluid continue upwards through the line of rabbet joint on the ball cover again, and the process top connection enters oil pipe again.When oil-immersed pump quit work, fluid remained static, and lost thrust upwards, and valve ball leans on its deadweight to drop to the upper port place of ball seat, plays reverse plugging action.The sand grains that contains in the oil pipe inner fluid just is deposited to above-mentioned sand setting ring cavity gradually, makes oil-immersed pump avoid its evil.Thereby accomplish the end in view, both can prolong the application life of oil-immersed pump, can avoid or reduce sand card accident again, make oilfield stimulation synergy.
(4) description of drawings
Accompanying drawing 1 is an overall structure complete section schematic diagram of the present utility model.
Accompanying drawing 2 is A-A sectional schematic diagrams of Fig. 1.
In the accompanying drawing, the 1st, top connection, the 2nd, wiper block, the 3rd, ball cover, the 4th, valve ball, the 5th, ball seat, the 6th, outer tube, the 7th, interior pipe, the 8th, lower contact, the 9th, cable is protective cradle fixedly.B is the sand setting ring cavity, and C is the vertical grid groove of fluid excessively on the sand setting one way valve ball cover.
(5) specific embodiment
Embodiment of accompanying drawings: shown in accompanying drawing, oil well oil-immersed pump sand setting protector comprises top connection 1, lower contact 8, outer tube 6, interior pipe 7 and five major parts of sand setting one way valve.Top connection 1 is installed in the upper end of outer tube 6, and lower contact 8 is installed in the lower end of outer tube 6.Interior pipe 7 places the centre of outer tube 6.The lower end of interior pipe 7 has external screw thread to be connected with the internal thread of lower contact 8 upper ends; The sand setting one way valve is installed in the upper end of interior pipe 7.The sand setting one way valve is made up of ball seat 5, ball cover 3 and valve ball 4.The lower end of ball seat 5 has internal thread to be connected with the external screw thread of interior pipe 7 upper ends.The lower end of the upper end of ball seat 5 and ball cover 3 is with being threaded.The inner chamber of ball cover 3 is equipped with valve ball 4.Between interior pipe 7 that the sand setting one way valve is following and the outer tube 6 is sand setting ring cavity B.Cable fixedly protective cradle (9) and wiper block (2) are arranged on the external surface of outer tube (6).
Shown in accompanying drawing 1, the ball cover 3 of sand setting one way valve is a round tube shape, and its top is the conical cap shape.Shown in attached Fig. 1 and 2, its upper half circle has the vertical palisade line of rabbet joint of some fluid overcurrents C.Shown in accompanying drawing 1, some fluid overcurrent lines of rabbet joint are arranged also on the cap of top on it.
Shown in attached Fig. 1 and 2, the cable on the external surface of its outer tube 6 is protective cradle 9 fixedly, is two blocks of long narrow shape steel plates parallel to each other in the vertically welding.
Shown in accompanying drawing 1, the wiper block 2 on the external surface of its outer tube 6 is two blocks of little steel plates in the vertically welding, prevents its serious secund.
The radially maximum size of this sand setting protector is less than the internal diameter of oil well casing, and leaves certain clearance, is beneficial to go into the well and play well operations.1～1.5 meter of its length makes its sand setting ring cavity B that enough volumes be arranged, and is unlikely to be full of by sand setting in the short period of time.Its overall structure is fairly simple, and processing cost is lower, and application life is longer, relatively helps applying.
Claims (4)
1. oil well oil-immersed pump sand setting protector; comprise top connection (1); lower contact (8); outer tube (6); interior pipe (7) and sand setting one way valve five parts; it is characterized in that top connection (1) is installed in the upper end of outer tube (6); lower contact (8) is installed in the lower end of outer tube (6); interior pipe (7) places the centre of outer tube (6); the lower end of interior pipe (7) has external screw thread to be connected with the internal thread of lower contact (8) upper end; the sand setting one way valve is installed in the upper end of interior pipe (7); the sand setting one way valve is by ball seat (5); ball cover (3) and valve ball (4) are formed; the lower end of ball seat (5) has internal thread to be connected with the external screw thread of interior pipe (7) upper end; the lower end of the upper end of ball seat (5) and ball cover (3) is with being threaded; the inner chamber of ball cover (3) is equipped with valve ball (4); between interior pipe (7) that the sand setting one way valve is following and the outer tube (6) is sand setting ring cavity (B), and cable fixedly protective cradle (9) and wiper block (2) are arranged on the external surface of outer tube (6).
2. oil well oil-immersed pump sand setting protector according to claim 1; the ball cover (3) that it is characterized in that the sand setting one way valve is a round tube shape; its top is the conical cap shape, and its first half has the vertical palisade lines of rabbet joint of some fluid overcurrents (C), and some fluid overcurrent lines of rabbet joint are also arranged on the cap of top on it.
3. oil well oil-immersed pump sand setting protector according to claim 1 is characterized in that the fixing protective cradle (9) of cable on the external surface of outer tube (6), is two blocks of long narrow shape steel plates parallel to each other in the vertically welding.
4. oil well oil-immersed pump sand setting protector according to claim 1 is characterized in that the wiper block (2) on the external surface of outer tube (6), is two or more than two the little steel plate in the vertically welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520080281 CN2763500Y (en) | 2005-01-20 | 2005-01-20 | Desilting protector for surmerged pump in oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520080281 CN2763500Y (en) | 2005-01-20 | 2005-01-20 | Desilting protector for surmerged pump in oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2763500Y true CN2763500Y (en) | 2006-03-08 |
Family
ID=36141046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520080281 Expired - Fee Related CN2763500Y (en) | 2005-01-20 | 2005-01-20 | Desilting protector for surmerged pump in oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2763500Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110984952A (en) * | 2019-10-18 | 2020-04-10 | 中国船舶重工集团公司第七一九研究所 | Underground oil-water separator |
-
2005
- 2005-01-20 CN CN 200520080281 patent/CN2763500Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110984952A (en) * | 2019-10-18 | 2020-04-10 | 中国船舶重工集团公司第七一九研究所 | Underground oil-water separator |
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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 |