CN217080744U - Matched anti-corrosion oil well pump - Google Patents
Matched anti-corrosion oil well pump Download PDFInfo
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- CN217080744U CN217080744U CN202122396644.5U CN202122396644U CN217080744U CN 217080744 U CN217080744 U CN 217080744U CN 202122396644 U CN202122396644 U CN 202122396644U CN 217080744 U CN217080744 U CN 217080744U
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Abstract
The utility model provides a supporting anticorrosive oil-well pump of formula, this oil-well pump adopt carbide bush isotructure to constitute by upper portion oil pipe coupling, hit gliding style bleeder assembly, uncoupling device assembly, plunger assembly, pump barrel assembly, standing valve assembly and valve bonnet. This pump adopts the structure of conventional tubular pump, increases the corrosion-resistant wear-resisting bush that shocks resistance in the upper and lower valve bonnet of plunger assembly, avoids in the valve bonnet because of the valve ball beat grind, corrode the aggravation and lead to cracked phenomenon to take place, and plunger assembly configuration stainless steel valve bonnet, carbide valve are vice, have strengthened the corrosion-resistant, the anti thorn of oil-well pump and have decreased the performance. The pump realizes the matching of the oil drain device, the disconnecting device and the oil well pump. The adoption hits smooth formula bleeder, rotation type and takes off the connector, simple structure, convenient to use, the reliability is high. The whole pump has the advantages of long service life, tool matching, large liquid production amount, convenient operation and the like, and is suitable for oil wells with large liquid production amount.
Description
Technical Field
The utility model relates to a field of oil-well pump, concretely relates to anticorrosive oil-well pump of supporting formula.
Background
The oil well pump is an underground device which drives an oil pumping rod to lift crude oil in a well to the ground by an oil pumping machine. The common oil well pump mainly comprises a pump barrel assembly, a fixed valve assembly and a plunger assembly. The oil well pump can be divided into a tube pump and a rod pump according to the underground fixing mode of the oil well pump.
The plunger assembly in the existing tubular oil well pump has serious phenomena of valve ball breakage caused by abrasion and corrosion during reciprocating motion, thereby shortening the service life of the whole pump; when the oil well pump works, an oil drain device and a connecting and disconnecting device are required to be arranged, the structure is complex, the use is troublesome, and the operation is troublesome.
SUMMERY OF THE UTILITY MODEL
A primary object of the present invention is to provide a complete set type anti-corrosion oil pump, which has short service life, serious abrasion and corrosion, incomplete tool set, and low operating efficiency.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the oil drain device comprises an oil drain device assembly, a rotary disconnecting device assembly, a plunger assembly, a pump barrel assembly and a fixed valve assembly, wherein the plunger assembly reciprocates in the pump barrel assembly, one end of the pump barrel assembly is connected with the oil drain device assembly, the other end of the pump barrel assembly is connected with the fixed valve assembly, and the rotary disconnecting device assembly is fixed at the end part of the plunger assembly.
In a preferred embodiment, the pump cylinder assembly comprises: go up coupling, pump barrel and prevent changeing the coupling.
In the preferred scheme, the upper coupling is fixed at one end of the pump cylinder, and the anti-rotation coupling is fixed at the other end of the pump cylinder.
In a preferred embodiment, the plunger assembly comprises: the upper oil outlet valve cover, the pressing cover, the valve cover body, the upper oil outlet valve, the plunger, the lower oil outlet valve and the anti-rotation joint.
In the preferred scheme, the upper oil outlet valve and the lower oil outlet valve are arranged in the valve cover body, and the valve pair positions of the upper oil outlet valve and the lower oil outlet valve are provided with the pressure cover;
the plunger reciprocates in the pump cylinder assembly, and the anti-rotation joint is abutted against an anti-rotation coupling in the pump cylinder assembly.
In a preferred embodiment, the standing valve assembly comprises: the oil inlet valve is arranged on the oil inlet pipe;
the oil well pump is connected with the tail pipe through the change-over connector, and the sieve tube can effectively filter impurities and foreign matters.
In the preferred scheme, the oil drain device assembly is a collision sliding type oil drain device which is fixed at the end part of the pump barrel;
the rotary disconnecting-connecting device assembly is a rotary disconnecting-connecting device which is fixed at the end part of the upper oil outlet valve cover, and the end part of the rotary disconnecting-connecting device is connected with the sucker rod.
In a preferable scheme, the pressing cover is made of hard alloy materials with high hardness, corrosion resistance, impact resistance and abrasion resistance.
The utility model provides a supporting anticorrosive oil-well pump of formula, this oil-well pump adopt carbide bush isotructure to constitute by upper portion oil pipe coupling, hit gliding style bleeder assembly, uncoupling device assembly, plunger assembly, pump barrel assembly, standing valve assembly and valve bonnet. This pump adopts the structure of conventional tubular pump, increases the corrosion-resistant wear-resisting bush that shocks resistance in the upper and lower valve bonnet of plunger assembly, avoids in the valve bonnet because of the valve ball beat grind, corrode the aggravation and lead to cracked phenomenon to take place, and plunger assembly configuration stainless steel valve bonnet, carbide valve are vice, have strengthened the corrosion-resistant, the anti thorn of oil-well pump and have decreased the performance. The pump realizes the matching of the oil drain device, the disconnecting device and the oil well pump. The oil leakage device adopts a collision sliding type oil leakage device and a rotary type disconnecting device, and has simple structure, convenient use and high reliability. The whole pump has the advantages of long service life, tool matching, large liquid production amount, convenient operation and the like, and is suitable for oil wells with large liquid production amount.
Drawings
The invention will be further explained with reference to the following figures and examples:
FIG. 1 is a front sectional view of the overall structure of the present invention;
in the figure: a sliding type oil drain device 1; an upper coupling 2; a pump barrel 3; an anti-rotation coupling 4; a fixed valve cover 5; an oil inlet valve 6; a buckle changing joint 7; a rotary type disconnector 8; an upper oil outlet valve cover 9; a press cover 10; a valve housing 11; an upper oil outlet valve 12; a plunger 13; a lower oil outlet valve 14; an anti-rotation joint 15; a screen 16.
Detailed Description
Example 1
As shown in fig. 1, a matched anticorrosion oil well pump comprises an oil drain assembly, a rotary disconnecting device assembly, a plunger assembly, a pump cylinder assembly and a fixed valve assembly, wherein the plunger assembly reciprocates in the pump cylinder assembly, one end of the pump cylinder assembly is connected with the oil drain assembly, the other end of the pump cylinder assembly is connected with the fixed valve assembly, and the rotary disconnecting device assembly is fixed at the end part of the plunger assembly. By the structure, the oil well pump realizes the matching of the oil drain device, the disconnecting device and the oil well pump. The adoption hits smooth formula bleeder, rotation type and takes off the connector, simple structure, convenient to use, the reliability is high. The whole pump has the advantages of long service life, tool matching, large liquid production amount, convenient operation and the like, and is suitable for oil wells with large liquid production amount.
In a preferred embodiment, the pump cylinder assembly comprises: upper coupling 2, pump barrel 3 and anti-rotation coupling 4.
In the preferred scheme, the upper coupling 2 is fixed at one end of the pump cylinder 3, and the anti-rotation coupling 4 is fixed at the other end of the pump cylinder 3.
In a preferred embodiment, the plunger assembly comprises: the oil supply device comprises an upper oil outlet valve cover 9, a pressure cover 10, a valve cover body 11, an upper oil outlet valve 12, a plunger 13, a lower oil outlet valve 14 and an anti-rotation joint 15.
In a preferred scheme, an upper oil outlet valve 12 and a lower oil outlet valve 14 are arranged in a valve cover body 11, and a pressure cover 10 is arranged at the valve pair position of the upper oil outlet valve 12 and the lower oil outlet valve 14;
the plunger 13 reciprocates in the pump cylinder 3 of the pump cylinder assembly, and the anti-rotation joint 15 is abutted against the anti-rotation coupling 4 of the pump cylinder assembly.
In a preferred embodiment, the standing valve assembly comprises: a fixed valve cover 5, an oil inlet valve 6, a buckle changing connector 7 and a sieve tube 16;
the oil well pump is connected with the tail pipe through the variable buckle connector 7, and the sieve tube 16 can effectively filter impurities and foreign matters.
In the preferred scheme, the oil drain device assembly is a collision-sliding type oil drain device 1, and the collision-sliding type oil drain device 1 is fixed at the end part of a pump barrel 3;
the rotary disconnecting-connecting device assembly is a rotary disconnecting-connecting device 8, the rotary disconnecting-connecting device 8 is fixed at the end part of the upper oil outlet valve cover 9, and the end part of the rotary disconnecting-connecting device 8 is connected with the sucker rod. With this structure, the principle of engagement and disengagement of the rotary type release coupling 8: according to the gravity of the sucker rod string, the lower part of the disconnecting and connecting device is in butt joint automatically after colliding with a pump. The lower part of the plunger assembly is inserted into a rotary coupling for fixing, and the disconnecting device can be disconnected by rotating the disconnecting device.
The oil drainage principle of the collision sliding type oil drainage device 1 is as follows: the impact head impacts the oil drainer, so that the oil drainage pin is opened to drain oil automatically.
The working principle of the oil well pump is as follows: the oil well pump is set in the oil well, the upper part of the pump is connected to the oil pipe and the lower part is connected to the tail pipe. The upper end of the plunger assembly is connected with the rotary disconnecting-connecting device 8, the upper part of the rotary disconnecting-connecting device 8 is connected with the sucker rod, and the plunger assembly completes the up-and-down reciprocating motion in the pump cylinder assembly under the driving of the sucker rod.
During the upstroke, the sucker rod drives the rotary type disconnecting and connecting device 8 and the plunger assembly to move upwards together, the upper oil outlet valve 12 and the lower oil outlet valve 14 are closed, the volume of a pump cavity below the plunger assembly is increased, the pressure is reduced, the oil inlet valve 6 is opened under the action of sinking pressure, and liquid in an annular cavity between the oil pipe and the sleeve enters the pump cavity below the plunger assembly to finish the liquid inlet process.
During the down stroke, the plunger 13 moves downwards under the drive of the sucker rod, the oil inlet valve 6 is closed under the pressure action of the liquid column, the upper oil outlet valve 12 and the lower oil outlet valve 14 are opened in time under the pressure of oil, and liquid in a pump cavity below the plunger assembly is discharged into an oil pipe above the plunger assembly to complete the liquid discharging process. Thus, one-time liquid inlet and discharge process of the oil well pump can be completed by one-time reciprocating motion.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and should not be considered as limitations of the present invention, and the protection scope of the present invention should be defined by the technical solutions described in the claims, and includes equivalent alternatives of technical features in the technical solutions described in the claims. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.
Claims (8)
1. The utility model provides a supporting formula anticorrosive oil-well pump, characterized by: the oil drain device comprises an oil drain device assembly, a rotary disconnecting device assembly, a plunger assembly, a pump barrel assembly and a fixed valve assembly, wherein the plunger assembly reciprocates in the pump barrel assembly, one end of the pump barrel assembly is connected with the oil drain device assembly, the other end of the pump barrel assembly is connected with the fixed valve assembly, and the rotary disconnecting device assembly is fixed at the end part of the plunger assembly.
2. The matched anticorrosion oil well pump as defined in claim 1, which is characterized in that: the pump barrel assembly includes: go up coupling (2), pump barrel (3) and prevent changeing coupling (4).
3. The matched anticorrosion oil well pump as defined in claim 2, which is characterized in that: the upper coupling (2) is fixed at one end of the pump cylinder (3), and the anti-rotation coupling (4) is fixed at the other end of the pump cylinder (3).
4. The matched anticorrosion oil well pump as defined in claim 1, which is characterized in that: the plunger assembly includes: an upper oil outlet valve cover (9), a pressure cover (10), a valve cover body (11), an upper oil outlet valve (12), a plunger (13), a lower oil outlet valve (14) and an anti-rotation joint (15).
5. The matched anticorrosion oil well pump as defined in claim 4, which is characterized in that: the upper oil outlet valve (12) and the lower oil outlet valve (14) are arranged in the valve cover body (11), and the pressure cover (10) is arranged at the valve pair position of the upper oil outlet valve (12) and the lower oil outlet valve (14);
the plunger (13) reciprocates in the pump cylinder (3) of the pump cylinder assembly, and the anti-rotation joint (15) is abutted against the anti-rotation coupling (4) of the pump cylinder assembly.
6. The matched anticorrosion oil well pump as defined in claim 1, which is characterized in that: the standing valve assembly includes: the oil inlet valve comprises a fixed valve cover (5), an oil inlet valve (6), a buckle changing joint (7) and a sieve tube (16);
the oil well pump is connected with the tail pipe through the variable buckle connector (7), and the sieve tube (16) can effectively filter impurities and foreign matters.
7. The matched anticorrosion oil well pump as defined in claim 1, which is characterized in that: the oil drain device assembly is a collision sliding type oil drain device (1), and the collision sliding type oil drain device (1) is fixed at the end part of the pump barrel (3);
the rotary disconnecting and connecting device assembly is a rotary disconnecting and connecting device (8), the rotary disconnecting and connecting device (8) is fixed at the end part of the upper oil outlet valve cover (9), and the end part of the rotary disconnecting and connecting device (8) is connected with the sucker rod.
8. The matched anticorrosion oil well pump as defined in claim 4, which is characterized in that: the press cover (10) is made of hard alloy materials with high hardness, corrosion resistance, impact resistance and abrasion resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122396644.5U CN217080744U (en) | 2021-09-30 | 2021-09-30 | Matched anti-corrosion oil well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122396644.5U CN217080744U (en) | 2021-09-30 | 2021-09-30 | Matched anti-corrosion oil well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217080744U true CN217080744U (en) | 2022-07-29 |
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ID=82497878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122396644.5U Active CN217080744U (en) | 2021-09-30 | 2021-09-30 | Matched anti-corrosion oil well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217080744U (en) |
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2021
- 2021-09-30 CN CN202122396644.5U patent/CN217080744U/en active Active
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