CN212003124U - High-efficient well-flushing tool of oil field screw pump well - Google Patents
High-efficient well-flushing tool of oil field screw pump well Download PDFInfo
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- CN212003124U CN212003124U CN201922323277.9U CN201922323277U CN212003124U CN 212003124 U CN212003124 U CN 212003124U CN 201922323277 U CN201922323277 U CN 201922323277U CN 212003124 U CN212003124 U CN 212003124U
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Abstract
The utility model relates to a high-efficient well-flushing instrument of oil field screw pump well. The problem that the discharge capacity of the existing screw pump is insufficient and the hot washing effect is poor is mainly solved. The method is characterized in that: the outer part of the oil pipe short joint (1) is fixedly connected with a valve body (5); the lower end of the inner cavity of the valve body (5) is connected with a valve ball seat (3), a valve ball (4) is seated on the upper part of the valve ball seat (3), the lower end head of the valve body (5) is connected with the upper end of a stop block (2), and the upper end head of the stop block (2) is tightly pressed on the valve ball seat (3); the oil pipe short joint (1) is provided with a plurality of communicated liquid inlet holes (6) corresponding to the side wall of the valve body (5). This high-efficient well-flushing instrument of oil field screw pump well satisfies the hot discharge capacity demand of washing of screw pump well, and the hot washing is effectual, and the valve switch is nimble.
Description
Technical Field
The utility model relates to an oil field machinery oil recovery technical field, in particular to high-efficient well-flushing instrument of oil field screw pump well.
Background
At present, the hot washing effect of the screw pump well in the oil field is generally poor, and the main reason is that the screw pump does not have a hot washing channel and can not meet the requirement of hot washing water quantity only by lifting discharge capacity. The existing hot washing controller consists of an upper joint, a lower joint, an upper buckle changing head, a lower buckle changing head, a central pipe, an annular valve, a valve seat, a spring, a pressure regulating sheet, an outer barrel and the like. The pressure of the conventional well washing is different from that of the pump truck well washing, the pressure regulating sheet in the valve meets different requirements on the opening pressure, and when the requirement on the larger opening pressure is met, the pressure regulating sheet is started. The hot washing controller has the problems of complex structure, poor switching flexibility, easy untight switching, no opening and the like.
Disclosure of Invention
The utility model aims to solve the technical problem that overcome the not enough poor problem of hot washing effect of current screw pump discharge capacity that exists among the background art, and provide a high-efficient well-flushing instrument of oil field screw pump well, this high-efficient well-flushing instrument of oil field screw pump well satisfies the hot washing discharge capacity demand of screw pump well, and hot washing is effectual, and the valve switch is nimble.
The utility model provides a its problem accessible reach as follows technical scheme: the efficient well washing tool for the screw pump well in the oil field comprises an oil pipe short joint, wherein a valve body is fixedly connected to the outside of the oil pipe short joint; the lower end of the inner cavity of the valve body is connected with a valve ball seat, a valve ball is seated on the upper part of the valve ball seat, the lower end of the valve body is connected with the upper end of a stop block, and the upper end of the stop block is tightly pressed on the valve ball seat; the oil pipe short circuit is provided with a plurality of communicated liquid inlet holes corresponding to the side wall of the valve body.
This high-efficient well-flushing instrument of oil field screw pump well sets up special hot lotion passageway at the oil pipe short circuit, utilizes the check valve separately with the oil jacket, makes hot lotion not lift through the screw pump and can get into oil pipe, satisfies screw pump well hot washing discharge capacity demand, and the valve switch is nimble, and sealing performance is good, and hot washing effect is good.
Compared with the above background art, the utility model can have following beneficial effect: this high-efficient well-flushing instrument of oil field screw pump well, the side direction designs the check valve, promotes the hot discharge capacity of washing. The valve seat hole is the passage with the smallest cross-sectional area in the hot washing process, andthe diameter of the channel section is 11 mm. When the minimum pressure of the conventional hot washing is 1.5MPa, the maximum value of the discharge capacity of the hot washing through the valve seat is 12m3The minimum hot washing discharge capacity is 9.0m3The method has the advantages of meeting the requirement of per hour, having obvious field conventional hot washing application effect and improving the hot washing efficiency by more than 50 percent. When the pump truck is used for high-pressure hot washing, the maximum discharge capacity can be met for hot washing 40m3The maximum pressure is less than 4.5MPa, and the hot washing efficiency is improved by more than 60%. The screw pump well is utilized to release the wax jam, the rotor does not need to be lifted for hot washing, and the jam release efficiency and the operation safety are improved. The valve switch is flexible, the sealing performance is good, and the hot washing effect and the lifting pump efficiency of the screw pump well are ensured to be high.
Drawings
FIG. 1 is a schematic structural diagram of the present invention;
fig. 2 is a left side view of the present invention.
In the figure: 1-oil pipe short circuit; 2-a stopper; 3-a valve ball seat; 4-Versailles; 5-a valve body; 6-liquid inlet hole; 7-hole.
The specific implementation mode is as follows:
the invention will be further explained with reference to the drawings:
as shown in attached figures 1 and 2, the efficient well washing tool for the screw pump well in the oil field comprises an oil pipe pup joint 1, wherein the upper end and the lower end of the oil pipe pup joint 1 are in threaded connection with an oil pipe column, and a valve body 5 is welded outside the oil pipe pup joint 1; the lower end of the inner cavity of the valve body 5 is fixedly connected with a valve ball seat 3, and the diameter of the section of a channel of the valve ball seat 3 is 9-11 mm; the upper part of the valve ball seat 3 is provided with a valve ball 4, the lower end of the valve body 5 is fixedly connected with the upper end of the stop block 2, and the upper end of the stop block 2 is tightly pressed on the valve ball seat 3; 3-5 communicated liquid inlet holes 6 are formed in the oil pipe short joint 1 corresponding to the side wall of the valve body 5, and the effective cross-sectional area of the liquid inlet holes is larger than that of the valve ball seats, so that the requirement of hot washing discharge capacity is met; the bottom of the baffle block 2 is a fixing plate which is not penetrated longitudinally, and the side wall of the baffle block 2 at the upper part of the fixing plate is provided with a hole 7 for blocking solid foreign matters in the well; the upper and lower screw threads of the oil pipe nipple are connected with an oil pipe column and are main body components of the hot washing controller; the valve ball, the valve ball seat, the stop block and the valve body form a check valve structure, and the check valve body and the oil pipe nipple are welded into a whole.
The efficient well-flushing tool for the screw pump well in the oil field is used for hot-flushing, paraffin removal and efficiency improvement of the screw pump well. The tool is arranged between a second oil pipe and a third oil pipe on a pump and is connected by an oil pipe short joint 1 to form a complete oil pipe column. The stop block 2 tightly fixes the valve ball seat 3 on the valve body 5 without leakage. When no hot washing is carried out, the valve ball 4 sinks on the valve ball seat 3 under the action of self gravity and liquid column gravity, the check valve is closed, and the oil pipe is isolated from the annular space of the ring sleeve. The pump lifting liquid is lifted to a wellhead through a short-circuit inner cavity of the controller and enters a production flow; during hot washing, the valve ball is opened under the pressure of the flushing fluid, and the flushing fluid is injected into the oil pipe and lifted to the well mouth together with the produced fluid. At the moment, the hot washing water quantity passing through the valve body is far larger than the lifting displacement of the pump, so that the hot washing quality is improved. After hot wash, the valve was closed. When the well is washed, the effect improving function can be completed by washing the well according to the normal hot washing operation rules, and the operation is simple and convenient.
Claims (6)
1. The utility model provides a high-efficient well-flushing instrument of oil field screw pump well, includes oil pipe short circuit (1), its characterized in that: the outer part of the oil pipe short joint (1) is fixedly connected with a valve body (5); the lower end of the inner cavity of the valve body (5) is connected with a valve ball seat (3), a valve ball (4) is seated on the upper part of the valve ball seat (3), the lower end head of the valve body (5) is connected with the upper end of a stop block (2), and the upper end head of the stop block (2) is tightly pressed on the valve ball seat (3); the oil pipe short joint (1) is provided with a plurality of communicated liquid inlet holes (6) corresponding to the side wall of the valve body (5).
2. The efficient well-flushing tool for the screw pump well in the oil field according to claim 1, characterized in that: the diameter of the channel section of the valve ball seat (3) is 9-11 mm.
3. The efficient well-flushing tool for the screw pump well in the oil field according to claim 1, characterized in that: the upper end and the lower end of the oil pipe short joint (1) are connected with an oil pipe column through screw threads.
4. The efficient well-flushing tool for the screw pump well in the oil field according to claim 1, characterized in that: 3-5 liquid inlet holes (6).
5. The oil field screw pump well high efficiency well flushing tool of claim 1 or 4, characterized in that: the sectional area of the liquid inlet hole (6) is larger than that of the valve ball seat.
6. The efficient well-flushing tool for the screw pump well in the oil field according to claim 1, characterized in that: the bottom of the stop block (2) is a fixing plate which is not longitudinally communicated, and the side wall of the stop block (2) at the upper part of the fixing plate is provided with a hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922323277.9U CN212003124U (en) | 2019-12-20 | 2019-12-20 | High-efficient well-flushing tool of oil field screw pump well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922323277.9U CN212003124U (en) | 2019-12-20 | 2019-12-20 | High-efficient well-flushing tool of oil field screw pump well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212003124U true CN212003124U (en) | 2020-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922323277.9U Active CN212003124U (en) | 2019-12-20 | 2019-12-20 | High-efficient well-flushing tool of oil field screw pump well |
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| CN (1) | CN212003124U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113107404A (en) * | 2021-05-07 | 2021-07-13 | 天津伊诺科技开发有限公司 | Well washing valve for oil well produced by oil field electric submersible pump |
-
2019
- 2019-12-20 CN CN201922323277.9U patent/CN212003124U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113107404A (en) * | 2021-05-07 | 2021-07-13 | 天津伊诺科技开发有限公司 | Well washing valve for oil well produced by oil field electric submersible pump |
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