CN214787930U - Gas-proof oil well pump - Google Patents
Gas-proof oil well pump Download PDFInfo
- Publication number
- CN214787930U CN214787930U CN202121210566.9U CN202121210566U CN214787930U CN 214787930 U CN214787930 U CN 214787930U CN 202121210566 U CN202121210566 U CN 202121210566U CN 214787930 U CN214787930 U CN 214787930U
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- gas
- annular groove
- pump
- pump barrel
- bag body
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Abstract
The utility model relates to the technical field of petroleum machinery, in particular to gas-proof oil-well pump. The device's pump barrel outer wall upwards opens circumferentially has the ring channel, and the snap ring comprises two semi-rings, and the snap ring dress is in the ring channel and outstanding ring channel, and gas inclusion inner wall design has an annular groove, and gas inclusion suit is on the snap ring, and the outstanding annular groove of snap ring part stretches into in the annular groove of gas inclusion, and threaded connection lock nut is gone up to the pump barrel of gas inclusion upper end, screws up lock nut after the lock nut and withholds the gas inclusion on the snap ring. The utility model discloses a gas bag simple to operate is firm, reduces to cause destruction to the pump barrel wall.
Description
The technical field is as follows:
the utility model relates to the technical field of petroleum machinery, in particular to gas-proof oil-well pump.
Background art:
when the oil is extracted from the gas-containing well, the gas lock is often formed due to the fact that a certain amount of natural gas is filled in the pump cylinder, so that crude oil cannot enter the oil well pump, and the gas-proof oil well pump is generally adopted in the gas-containing well. The typical structure of the gas-proof oil well pump is that a plurality of holes are drilled in the middle of a pump barrel, a gas bag is arranged outside the gas bag, and when oil is pumped, a plunger moves up and down repeatedly to pass through the holes to lead natural gas out of the oil well pump through the gas bag and discharge the natural gas through an oil pipe. The air bag needs to be installed on the pump cylinder to cover the exhaust hole, the air bag is welded on the pump cylinder or fixed by a pin in the conventional general method, the pump cylinder is deformed due to the fact that the inner hole of the pump cylinder wall is thin and has high precision, and the pin is often scraped due to scraping when the strength is not enough for downhole operation.
The utility model has the following contents:
the to-be-solved technical problem of the utility model is to provide a prevent gas oil-well pump, the device has realized that gas bag simple to operate is firm, reduces to cause destruction to the pump barrel wall. The defects that the existing gas-tight oil well pump adopts welding or pin punching to fix the gas bag, the welding easily causes deformation of a pump cylinder, and the pin punching strength is not enough, so that the gas bag is easily scraped by scraping are overcome.
The utility model adopts the technical proposal that: an air-proof oil well pump comprises a pump cylinder and a plunger arranged in the pump cylinder, wherein the side wall of the pump cylinder is circumferentially provided with vent holes; the air bag body is characterized in that an annular groove is formed in the outer wall of the pump barrel in the circumferential direction, the clamping ring is composed of two semi-rings, the clamping ring is installed in the annular groove and protrudes out of the annular groove, an annular groove is designed in the inner wall of the air bag body, the air bag body is sleeved on the clamping ring, the protruding annular groove of the clamping ring extends into the annular groove of the air bag body, a locking nut is connected to the pump barrel in a threaded mode at the upper end of the air bag body, the locking nut presses the air bag body on the clamping ring after the locking nut is screwed down, the air bag body is sleeved on the pump barrel and covers an air vent, and the air bag body and the pump barrel are sealed through a sealing ring.
The depth of the annular groove on the outer wall of the pump cylinder is 1-2 mm.
The utility model has the advantages that: the utility model discloses a gas bag simple to operate is firm, reduces to cause destruction to the pump barrel wall.
Description of the drawings:
the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a cross-sectional schematic view of a snap ring.
Fig. 3 is a schematic structural diagram of the snap ring.
The specific implementation mode is as follows:
as shown in fig. 1, 2 and 3, the gas-tight oil pump comprises a pump cylinder 1 and a plunger 2 arranged in the pump cylinder 1, wherein vent holes are formed in the circumferential direction of the side wall of the pump cylinder 1; the outer wall of the pump barrel 1 is circumferentially provided with an annular groove, the snap ring 4 is composed of two semi-rings, the snap ring 4 is arranged in the annular groove and protrudes out of the annular groove, the inner wall of the gas inclusion body 5 is provided with an annular groove, the gas inclusion body 5 is sleeved on the snap ring 4, the portion, protruding out of the annular groove, of the snap ring 4 extends into the annular groove of the gas inclusion body 5, the pump barrel 1 at the upper end of the gas inclusion body 5 is in threaded connection with a locking nut 3, the locking nut 3 presses the gas inclusion body 5 on the snap ring 4 after the locking nut 3 is screwed down, the gas inclusion body 5 is sleeved on the pump barrel 1 and covers a vent hole, and the gas inclusion body 5 and the pump barrel 1 are sealed through a sealing ring 6.
The depth of the annular groove on the outer wall of the pump barrel 1 is 1-2 mm.
It should be understood that the above detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can still be modified or equivalently replaced to achieve the same technical effects; as long as the use requirement is satisfied, the utility model is within the protection scope.
Claims (2)
1. An air-proof oil well pump comprises a pump cylinder (1) and a plunger (2) arranged in the pump cylinder (1), wherein the side wall of the pump cylinder (1) is circumferentially provided with vent holes; the method is characterized in that: the pump barrel is characterized in that an annular groove is formed in the outer wall of the pump barrel (1) in the circumferential direction, the clamping ring (4) is composed of two half rings, the clamping ring (4) is installed in the annular groove and protrudes out of the annular groove, an annular groove is designed in the inner wall of the gas bag body (5), the gas bag body (5) is sleeved on the clamping ring (4), the protruding annular groove part of the clamping ring (4) extends into the annular groove of the gas bag body (5), the pump barrel (1) at the upper end of the gas bag body (5) is connected with the locking nut (3) in a threaded mode, the locking nut (3) presses the gas bag body (5) on the clamping ring (4) after the locking nut (3) is screwed down, the gas bag body (5) is sleeved on the pump barrel (1) and covers the air vent, and the gas bag body (5) and the pump barrel (1) are sealed through the sealing ring (6).
2. The gas-tight oil well pump according to claim 1, characterized in that: the depth of the annular groove on the outer wall of the pump barrel (1) is 1-2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121210566.9U CN214787930U (en) | 2021-06-01 | 2021-06-01 | Gas-proof oil well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121210566.9U CN214787930U (en) | 2021-06-01 | 2021-06-01 | Gas-proof oil well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214787930U true CN214787930U (en) | 2021-11-19 |
Family
ID=78698334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121210566.9U Active CN214787930U (en) | 2021-06-01 | 2021-06-01 | Gas-proof oil well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214787930U (en) |
-
2021
- 2021-06-01 CN CN202121210566.9U patent/CN214787930U/en active Active
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