CN210290091U - Oil well pump and system for normal flushing well - Google Patents
Oil well pump and system for normal flushing well Download PDFInfo
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- CN210290091U CN210290091U CN201920848178.XU CN201920848178U CN210290091U CN 210290091 U CN210290091 U CN 210290091U CN 201920848178 U CN201920848178 U CN 201920848178U CN 210290091 U CN210290091 U CN 210290091U
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Abstract
The utility model provides a well oil-well pump and system are just being washed, this well oil-well pump is just being washed includes: the device comprises a joint, a pump barrel, a plunger and a fixed valve, wherein one end of the pump barrel is connected with the joint, and the other end of the pump barrel is connected with the fixed valve; the plunger is sleeved in the pump barrel and comprises a first movable valve, a plunger body, a second movable valve and a fishing claw which are sequentially connected, wherein the first movable valve is close to the joint, and the fishing claw is close to the fixed valve; through holes are formed in the two ends of the first traveling valve, the plunger body, the second traveling valve and the fishing claw; the fixed valve comprises a fishing head, a fixed valve cover connected with the fishing head, a ball basket connected with the fixed valve cover and provided with a through hole, a fixed valve ball located on the through hole of the ball basket, and a fixed valve seat communicated with the ball basket. The embodiment of the utility model provides a can realize the well just washing of oil well, well-washing effect is good.
Description
Technical Field
The utility model relates to an oil recovery engineering field, concretely relates to well-flushing oil-well pump and system.
Background
At present, reverse well washing is mainly adopted during well washing of an oil well, and the reverse well washing has the following problems: firstly, for an oil well with serious near-wellbore area depletion, flushing fluid can leak into a stratum and cannot effectively establish flushing circulation; secondly, the well flushing liquid goes down along the oil sleeve annulus, so that most of heat loss is caused, and the well flushing effect is influenced under the conditions of wax removal well flushing and thick oil well flushing; thirdly, as the production time of the sand production well and the thick oil well is prolonged, the sand and oil sludge mixture can be coated on the outer wall of the sand prevention screen pipe at the lower end of the oil well pump to form a layer of mud cake-shaped plug, and the blockage removing effect of the backwashing well is poor. In conclusion, the existing oil well backwashing mode has poor well flushing effect.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a well oil-well pump is just being washed can realize the well is just being washed of oil well, and well-washing effect is good, and this well oil-well pump is just being washed includes: a joint, a pump barrel, a plunger and a fixed valve, wherein,
one end of the pump cylinder is connected with the joint, and the other end of the pump cylinder is connected with the fixed valve;
the plunger is sleeved in the pump barrel and comprises a first movable valve, a plunger body, a second movable valve and a fishing claw which are sequentially connected, wherein the first movable valve is close to the joint, and the fishing claw is close to the fixed valve;
through holes are formed in the two ends of the first traveling valve, the plunger body, the second traveling valve and the fishing claw;
the fixed valve comprises a fishing head, a fixed valve cover connected with the fishing head, a ball basket connected with the fixed valve cover and provided with a through hole, a fixed valve ball located on the through hole of the ball basket, and a fixed valve seat communicated with the ball basket.
The embodiment of the utility model provides a well oil pump system is just being washed is still provided, can realize the well just being washed of oil well, and well-flushing effect is good, and this system includes: the positive well-flushing oil well pump and the sucker rod connected with the plunger of the positive well-flushing oil pump.
The embodiment of the utility model provides an in, when needing to wash the well, in putting the well perpendicularly to the well-flushing oil-well pump, wherein the well head is kept away from to the standing valve, then transfer sucker rod and plunger, the weight makes the fishing head of catching the claw of plunger to grasp the standing valve, lift the sucker rod, the fishing head is driven to the fishing claw and the basket goes upward, the standing valve ball goes upward and separates with the solid fixed valve seat along with the basket together, at this moment, from oil pipe well-flushing, well-flushing liquid is through first traveling valve, the plunger body, second traveling valve and fishing claw, flow through solid fixed valve seat again, thereby realize well-flushing, and well-flushing effect is more effectual than the backwash well.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts. In the drawings:
FIG. 1 is a schematic structural diagram of a positive well-flushing oil pump according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of a first position-limiting seat and a second position-limiting seat according to an embodiment of the present invention;
fig. 3 is a flow chart of forward well flushing using the forward well-flushing oil pump system according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention are described in further detail below with reference to the accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
Fig. 1 is the utility model discloses in the embodiment of the utility model provides a well oil pump is just washed to structure sketch map, as shown in fig. 1, this well oil-well pump is just washed includes: a joint 1, a pump barrel 2, a plunger 3 and a fixed valve 4, wherein,
one end of the pump cylinder 2 is connected with the joint 1, and the other end is connected with the fixed valve 4;
the plunger 3 is sleeved in the pump barrel 2 and comprises a first movable valve 31, a plunger body 32, a second movable valve 34 and a fishing claw 36 which are sequentially connected, wherein the first movable valve 31 is close to the joint 1, and the fishing claw 36 is close to the fixed valve 4;
through holes are formed in the two ends of the first movable valve 31, the plunger body 32, the second movable valve 34 and the fishing claw 36;
the fixed valve 4 comprises a fishing head 41, a fixed valve cover 42 connected with the fishing head 41, a ball basket 45 with a through hole connected with the fixed valve cover 42, a fixed valve ball 47 located on the through hole of the ball basket 45, and a fixed valve seat 46 communicated with the ball basket 45.
The embodiment of the utility model provides an in, when needing to wash the well, in putting the well perpendicularly to the well-flushing oil-well pump, wherein the well head is kept away from to the standing valve, then transfer sucker rod and plunger, the weight makes the fishing head of catching the claw of plunger to grasp the standing valve, lift the sucker rod, the fishing head is driven to the fishing claw and the basket goes upward, the standing valve ball goes upward and separates with the solid fixed valve seat along with the basket together, at this moment, from oil pipe well-flushing, well-flushing liquid is through first traveling valve, the plunger body, second traveling valve and fishing claw, flow through solid fixed valve seat again, thereby realize well-flushing, and well-flushing effect is more effectual than the backwash well.
During the concrete implementation, pump barrel 2 and joint 1 and standing valve 4 are the screw thread and are connected, and first traveling valve 31 adopts the screw thread connected mode with plunger body 32, and plunger body 32 adopts the screw thread with second traveling valve 34 to be connected, and second traveling valve 34 and fishing claw 36 adopt the screw thread to connect. Through holes are formed in the two ends of the first movable valve 31, the plunger body 32, the second movable valve 34 and the fishing claw 36, so that when the well is washed, the well-washing liquid can flow in from the first movable valve 31, flow through the through holes of the plunger body 32, the second movable valve 34 and the fishing claw 36 respectively and flow out from the through hole of the fixed valve seat 46.
In an embodiment, the plunger 3 further comprises a first ram 33 and a second ram 35, wherein,
the first ejector rod 33 is sleeved inside the plunger body 32, and the diameter of the first ejector rod is smaller than that of the through hole of the plunger body 32;
the second push rod 35 is sleeved inside the fishing claw 36, and the diameter of the second push rod is smaller than that of the through hole of the fishing claw 36.
In the above embodiment, the diameter of the first plunger rod 33 is smaller than that of the through hole of the plunger body 32, so that the first plunger rod 33 can pass through the through hole of the plunger body 32, and the diameter of the second plunger rod 35 is smaller than that of the through hole of the fishing claw 36, so that the second plunger rod 35 can pass through the through hole of the fishing claw 36.
In one embodiment, the first ram 33 includes a first annular baffle 331;
the second traveling valve 34 includes a second traveling valve housing 341 with a through hole, and the first stem 33 passes through the through hole of the second traveling valve housing 341 and is seated on the second traveling valve 34 through the ring-shaped baffle 331;
the second ram 35 includes a second annular stop 352, and the second ram 35 is seated on the step of the overshooting jaw 36 by the second annular stop 352.
In the above embodiment, the first push rod 33 passes through the through hole of the second traveling valve housing 341, and is seated on the second traveling valve 34 through the ring-shaped baffle 331, that is, the first ring-shaped baffle 331 controls the moving distance of the first push rod 33 not to exceed the set range. The second push rod 35 is located on the step of the fishing claw 36 through the second annular baffle 352, that is, the moving distance of the second push rod 35 does not exceed the set range.
In one embodiment, the first traveling valve ball 311 is disposed inside the first traveling valve 31, and is used for opening or blocking the through hole of the plunger body 32;
the second traveling valve ball 351 is disposed inside the second traveling valve 34 and is used for opening or blocking the through hole of the fishing claw 36.
In the above embodiment, when the first floating valve ball 311 moves toward the joint 1 during well flushing, the first floating valve ball 311 opens the through hole of the plunger body 32, and the second floating valve ball 351 opens the through hole of the fishing claw 36; when the well is not washed, the first floating valve ball 311 blocks the through hole of the plunger body 32, and the second floating valve ball 351 blocks the through hole of the fishing claw 36.
In practice, the structure of the fixed valve 4 is various, and several examples thereof are given below.
In one embodiment, the fixed valve 4 further comprises a limiting collar 43 sleeved outside the ball basket 45, and the limiting collar 43 comprises a first limiting seat 431 close to the fishing head 41 and a second limiting seat 432 far away from the fishing head 41.
In one embodiment, the basketball goal 45 includes a third annular skirt 451, and the basketball goal 45 is seated on the second restraint seat 432 of the restraint collar 43 by the third annular skirt 451.
In one embodiment, the spring 44 is disposed inside the limiting collar 43 and outside the ball basket 45, and one end of the spring is in contact with the first limiting seat 431 and the other end is in contact with the third annular baffle 451.
In the above embodiments, the spring 44 is compressed between the contact of the first retainer seat 431 and the third annular flap 451, and generates a force to move the stationary valve ball 47 along with the ball basket 45, thereby opening or closing the stationary valve seat 46. The spring 44 may be plural and arranged between the first stopper seat 431 and the third annular barrier 451.
In one embodiment, the first top bar 33 and the second top bar 35 are hollow screen bar structures.
In the above embodiment, the first top bar 33 and the second top bar 35 of the hollow screen rod structure can flow liquid for washing the well.
In one embodiment, the first retainer seat 431 and the second retainer seat 432 are provided with fluid passages.
In the above embodiments, the fluid flow channels may flow through fluid used to flush the well. Fig. 2 is a schematic cross-sectional view of a first stopper 431 and a second stopper 432 according to an embodiment of the present invention, as shown in fig. 2, the above shapes can better allow the liquid for a forward washing well to flow through.
The embodiment of the utility model provides a well oil pump system is just being washed is still provided, including the sucker rod that above-mentioned well oil-well pump and the plunger 3 with well oil pump is just being washed is connected.
Fig. 3 is a flow chart of forward well-flushing using the pump system for forward well-flushing according to an embodiment of the present invention, as shown in fig. 3, including:
one end of the joint 1 is upward, and one end of the fixed valve 4 is downward;
the sucker rod can be lifted up from a wellhead by a crane, after the fishing claw 36 drives the fishing head 41 and the ball basket 45 to move upwards, the annular blocking piece 451 compresses the spring 44, the fixed valve ball 47 moves upwards together with the ball basket 45 and is separated from the fixed valve seat 46, meanwhile, the fishing head 41 enables the second ejector rod 35 to move upwards, the second moving valve ball 351, the first ejector rod 33 and the first moving valve ball 311 move upwards, so that the first moving valve ball 311 opens the through hole of the plunger body 32, the second moving valve ball 351 opens the through hole of the fishing claw 36, and the well-washing liquid moves downwards through the liquid flow channels of the first limiting seat 431 and the second limiting seat 432 and flows out through the fixed valve seat 46, so that well-washing is realized.
when the elastic force of the spring 44 is greater than the set force of the fishing claw 36, the fishing claw 36 is separated from the fishing head 41, the fishing head 41 and the ball basket 45 are released, the fishing head 41 and the ball basket 45 move downwards under the elastic force of the spring 44, the fixed valve ball 47 blocks the fixed valve seat 46 again, meanwhile, the first floating valve ball 311 and the second floating valve ball 351, the first ejector rod 33 and the second ejector rod 35 move downwards, the first floating valve ball 311 blocks the through hole of the plunger body 32, and the second floating valve ball 351 blocks the through hole of the fishing claw 36, so that normal production can be realized.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a well-flushing oil-well pump which characterized in that includes: a joint (1), a pump cylinder (2), a plunger (3) and a fixed valve (4), wherein,
one end of the pump cylinder (2) is connected with the joint (1), and the other end is connected with the fixed valve (4);
the plunger (3) is sleeved in the pump barrel (2) and comprises a first movable valve (31), a plunger body (32), a second movable valve (34) and a fishing claw (36) which are sequentially connected, wherein the first movable valve (31) is close to the joint (1), and the fishing claw (36) is close to the fixed valve (4);
through holes are formed in the two ends of the first movable valve (31), the plunger body (32), the second movable valve (34) and the fishing claw (36);
the fixed valve (4) comprises a fishing head (41), a fixed valve cover (42) connected with the fishing head (41), a ball basket (45) connected with the fixed valve cover (42) and provided with a through hole, a fixed valve ball (47) located on the through hole of the ball basket (45), and a fixed valve seat (46) communicated with the ball basket (45).
2. The forward flushing pump of claim 1, wherein the plunger (3) further comprises a first ram (33) and a second ram (35), wherein,
the first ejector rod (33) is sleeved in the plunger body (32), and the diameter of the first ejector rod is smaller than that of the through hole of the plunger body (32);
the second ejector rod (35) is sleeved inside the salvaging claw (36), and the diameter of the second ejector rod is smaller than that of the through hole of the salvaging claw (36).
3. The forward flushing pump of claim 2, wherein the first ram (33) includes a first annular baffle (331);
the second traveling valve (34) comprises a second traveling valve cover (341) with a through hole, and the first ejector rod (33) penetrates through the through hole of the second traveling valve cover (341) and is located on the second traveling valve (34) through the annular baffle (331);
the second ejector rod (35) comprises a second annular baffle (352), and the second ejector rod (35) is located on the step of the fishing claw (36) through the second annular baffle (352).
4. The forward flushing defueling pump of claim 1, characterized in that the first traveling valve ball (311) is disposed inside the first traveling valve (31) for opening or blocking the through hole of the plunger body (32);
the second traveling valve ball (351) is arranged inside the second traveling valve (34) and is used for opening or blocking the through hole of the fishing claw (36).
5. The forward well-flushing oil-well pump according to claim 1, characterized in that the standing valve (4) further comprises a limit collar (43) sleeved outside the ball basket (45), and the limit collar (43) comprises a first limit seat (431) close to the fishing head (41) and a second limit seat (432) far from the fishing head (41).
6. The forward well-flushing pump according to claim 5, characterized in that the ball basket (45) comprises a third annular baffle (451), and the ball basket (45) is seated on the second limit seat (432) of the limit collar (43) through the third annular baffle (451).
7. The forward well-flushing oil-well pump according to claim 6, characterized in that the spring (44) is sleeved inside the limit coupling (43) and outside the ball basket (45), one end of the spring is in contact with the first limit seat (431), and the other end is in contact with the third annular baffle (451).
8. The forward flushing defueling pump of claim 1, characterized in that the first ejector rod (33) and the second ejector rod (35) are of a hollow sieve rod structure.
9. The forward well-flushing pump according to claim 1, wherein the first retainer (431) and the second retainer (432) are provided with fluid passages.
10. A well-flushing oil well pump system, characterized by comprising a well-flushing oil well pump according to any one of claims 1 to 9 and a sucker rod connected to the plunger (3) of the well-flushing oil well pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920848178.XU CN210290091U (en) | 2019-06-06 | 2019-06-06 | Oil well pump and system for normal flushing well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920848178.XU CN210290091U (en) | 2019-06-06 | 2019-06-06 | Oil well pump and system for normal flushing well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210290091U true CN210290091U (en) | 2020-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920848178.XU Active CN210290091U (en) | 2019-06-06 | 2019-06-06 | Oil well pump and system for normal flushing well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210290091U (en) |
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2019
- 2019-06-06 CN CN201920848178.XU patent/CN210290091U/en active Active
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