CN218717440U - Fixed valve device for pump retentivity without moving pipe column - Google Patents
Fixed valve device for pump retentivity without moving pipe column Download PDFInfo
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- CN218717440U CN218717440U CN202222694314.9U CN202222694314U CN218717440U CN 218717440 U CN218717440 U CN 218717440U CN 202222694314 U CN202222694314 U CN 202222694314U CN 218717440 U CN218717440 U CN 218717440U
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Abstract
The utility model discloses a fixed valve device for the recovery of a stationary tubular column inspection pump, which comprises an original fixed valve device; the device also comprises a throwing-in type tubular pump barrel and a newly-added fixed valve device; the original fixed valve device and the newly-added fixed valve device are both arranged in the input type tubular pump barrel, and the newly-added fixed valve device is positioned above the original fixed valve device; a miscellaneous valve blocking cover is arranged between the newly increased fixed valve device and the original fixed valve device; and a space between the outer wall of the impurity blocking valve cover and the inner wall of the input type tubular pump barrel forms an impurity deposition cavity. The utility model discloses form two valve structures, go into the sucker rod post, can resume production fast. The throwing type tubular pump barrel is used for keeping off impurities and collecting settled sand from the upper part and the lower part of the original fixed valve device, and the lower oil inlet pipe column of the pump hung on the original fixed valve device also plays a role in keeping off the impurities and the settled sand, so that the service life of the original pump is prolonged.
Description
Technical Field
The utility model belongs to the technical field of the pump operation is examined to the motionless tubular column and specifically relates to a fixed valve device is examined to motionless tubular column pump reproduction.
Background
The fixed valve device is a key part of the tubing pump. At present, the leakage of a fixed valve device of a tubular oil well pump accounts for about 80 percent of the total pump leakage, and the leakage lying well of the fixed valve device has a rising trend along with the increase of a large-parameter extract pumping well, so that the operation workload is continuously increased, and the annual operation maintenance cost of the pump replacement is high. Meanwhile, the operation and construction bring much environmental pollution. In order to reduce the leakage of the fixed valve device, the common technical method comprises the following steps: firstly, a sand blocking device is arranged under a tubular oil well pump; and secondly, replacing the valve seat in the fixed valve device with a hard alloy valve seat. The two methods play a certain role in preventing sundries from being pumped into the pump and preventing the fixed valve seat from being punctured, the repair-free period is prolonged, and the fixed valve seat is punctured and lies in a short time due to the fact that 60% of the tubular oil-well pumps are affected by factors such as sundries, sand deposition, impact, corrosion and the like. In order to recover production, a technical method for operating a tubular column check pump must be adopted, and the problem that a fixed valve seat of the pump is punctured is solved. The operation of moving the tubular column to examine the pump needs to be taken out from the well with the tubular column in the pit totally, change new pump, and then go into the well with the tubular column in the pit totally, its process includes the well-flushing, tear open the well head, plays pole, plays the pipe, trades pump, pump etc. dozens of processes. The problems of large workload, high investment, long well occupying time, environmental influence and the like exist in the operation of the dynamic pipe column pump detection.
In the application No.: CN204312314U, relates to a fixed valve immovable pipe column leakage control valve for an oil well pump. This fixed valve of oil-well pump loses motionless tubular column and controls hourglass valve, including threaded connection's main part and director, locate inside valve ball of main part and ball seat, the ball seat is located inside lower extreme of main part, director upper end, be equipped with the oil outlet in the main part, the director outside is opened there is the seal groove, the card is equipped with big sealing washer in the seal groove.
In the application No.: CN2611629Y relates to a fixed valve salvaging oil pump, belonging to the underground oil pump. The method is composed of a piston traveling valve, a fisher, a fishing head, a pump barrel, a fixed valve, a tension claw and a locking joint, the locking fishing head and the fishing joint at the lower part of the piston are used in work, the fixed valve in the pump can be pulled out of the working barrel along with the piston at one time without a movable pipe column, and therefore the defect that a rod pipe needs to be pulled out or the fixed valve blocks a channel in an oil pipe when a long gauge oil well pump is used for detecting the pump is overcome.
Publication (bulletin) No.: CN202560544U, published (announced): 2012-11-28 discloses a double-valve pair fixed valve, which is applied to an oil well downhole equipment oil well pump valve pair device. The upper part of the double-valve pair fixed valve is connected with an oil pump cylinder, the upper part of the fixed valve is connected with the inner valve cover, the lower part of the fixed valve is connected with the fixed valve joint to form an upper inner space and a lower inner space, the upper valve ball and the upper valve seat are arranged in the upper space, and the lower valve ball and the lower valve seat are arranged in the lower space. The function of two sets of valve pairs of one set of device is realized, the effect of double insurance is reached to the fixed valve of oil-well pump, the effectual life who prolongs the oil-well pump.
Publication (bulletin) No.: CN2544091Y, published (announced): 2003-04-09 discloses a double-valve slag preventing device, belonging to the field of petroleum machinery. The upper joint is in threaded connection with one end of the outer cylinder, the lower joint is in threaded connection with the other end of the outer cylinder, the upper valve cover is in threaded connection with the inner pipe, the upper valve seat is fixedly connected with the inner pipe, the upper valve ball is arranged in the upper valve cover, the inner side of the connecting pressure cover is in threaded connection with the inner pipe, the outer side of the connecting pressure cover is in threaded connection with the lower joint, the lower valve cover is arranged in the lower joint, the lower valve seat is located in the lower joint, and the lower valve ball is arranged on the lower valve seat in the lower valve cover. Has the advantages that: novel structure increases a lower valve ball in the lower clutch, and the valve ball can play sealed effect better in the cooperation, can prevent the oil leak better.
Publication (bulletin) No.: CN201057141Y, published (announced): 2008-05-07 discloses a double-valve oil well pump suitable for thick oil wells, sand producing wells, airlock wells and oil drains in petroleum industry. The pump comprises a pump cylinder, an oil inlet, an equal-diameter long piston, an inner reducing lower joint and the like, wherein the pump cylinder is connected with the inner reducing lower joint, the equal-diameter long piston is arranged in the pump cylinder, and the equal-diameter long piston is respectively connected with an upstream movable valve and a downstream movable valve; and the pump has the advantages of large area of the oil inlet hole, forward and backward well flushing, no need of installing an oil drain, prolonged pump detection period, improved pump efficiency, increased oil well yield, reduced well repair cost and the like.
Publication (bulletin) No.: CN213775322U, published (announced): 2021-07-23 discloses a double acting valve. The multi-purpose valve comprises a cylindrical shell, a perforated plate is fixed in the cylindrical shell, an upper valve seat and a lower valve seat are arranged in the cylindrical shell above and below the perforated plate respectively, the lower valve seat is fixed in the cylindrical shell, a fixing ring is fixed in the cylindrical shell above the perforated plate, the upper valve seat is fixedly and hermetically arranged in the fixing ring, the upper valve seat is fixedly connected with the fixing ring through a shear pin, a plurality of long grooves are uniformly distributed on the circumference of the lower end of the fixing ring, stop blocks are arranged in the long grooves in a sliding mode, the end faces, facing the axis of the cylindrical shell, of the stop blocks are in contact with the outer edges of the upper valve seat, the lower ends of the stop blocks protrude to the lower portions of the upper valve seat and the fixing ring, and the stop blocks are fixedly connected with the wall of the long grooves, facing the axis of the cylindrical shell, through second springs. Convenient to use, simple structure, stability can effectually play stifled tub of oil pipe's effect, prevents that the tubular column from going into the well in-process pit shaft water from spouting in the tubular column, can satisfy and divide and backwash the well requirement.
Technical scheme and the technical problem that will solve and the beneficial effect who produces of above disclosure technique all with the utility model discloses inequality, to the utility model discloses more technical characteristics and the technical problem and the beneficial effect that will solve all do not have the technological inspiration in the above technical document that discloses.
SUMMERY OF THE UTILITY MODEL
The above-mentioned defect to prior art existence, the utility model aims at providing a fixed valve device of pump retest is not moved to the tubular column, in process of production, when the fixed valve seat thorn of the former fixed valve device of well leaks, goes up the operation and provides the sucker rod post, drops into reserve newly-increased fixed valve device in to the tubular column, sits in dropping into formula tubular oil-well pump, forms two valve structures, goes into the sucker rod post again, resumes production fast. The throwing type tubular pump barrel is used for keeping off impurities and collecting settled sand from the upper part and the lower part of the original fixed valve device, and the lower oil inlet pipe column of the pump hung on the original fixed valve device also plays a role in keeping off the impurities and the settled sand, so that the service life of the original pump is prolonged.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a fixed valve device for the recovery of a fixed tubular column inspection pump comprises an original fixed valve device;
the device also comprises a throwing-in type tubular pump barrel and a newly-added fixed valve device; the original fixed valve device and the newly-added fixed valve device are both arranged in the input type tubular pump barrel, and the newly-added fixed valve device is positioned above the original fixed valve device;
a miscellaneous valve blocking cover is arranged between the newly increased fixed valve device and the original fixed valve device; a space between the outer wall of the impurity blocking valve cover and the inner wall of the input type tubular pump barrel forms an impurity deposition cavity;
the impurity blocking valve cover is provided with a first liquid outlet hole and a second liquid outlet hole, the first liquid outlet hole is communicated with the newly-added fixed valve device, and the second liquid outlet hole is communicated with the deposit impurity cavity.
Furthermore, the input type tubular pump cylinder comprises a pump cylinder, a baffle ring, a short pump cylinder and a reducing outer sleeve which are sequentially connected from top to bottom.
Furthermore, the lower end of the original fixed valve device is connected with a sundry blocking sieve cover, and the sundry blocking sieve cover is provided with a liquid inlet hole.
Furthermore, the lower end of the impurity blocking valve cover is provided with a clamped end table which is clamped on an inner reducing step of the reducing outer sleeve and is tightly jacked by the jacking short section;
the jacking short section is respectively connected with the reducing outer sleeve and an original valve cover of an original fixed valve device;
the upper end of the impurity blocking screen cover is connected with an original pressing joint of an original fixed valve device.
Furthermore, the newly-added fixed valve device is fixed on the inner wall of the input type tubular pump barrel through a clamping mechanism.
Further, the clamping and fixing mechanism comprises a ring-shaped clamping jaw;
the outer end of the annular clamping jaw is clamped and fixed on the inner wall of the short pump barrel, and the inner end of the annular clamping jaw is clamped and fixed on the outer wall of an upper compression joint of the newly-added fixed valve device;
the lower end of the upper compression joint of the newly added fixed valve device is pressed on the impurity blocking valve cover.
Furthermore, the baffle ring and the outer pipe are used as axial limiting pieces at the outer ends of the annular clamping jaws; the lower end of the compression joint of the newly added fixed valve device is provided with an outer boss, and the outer boss and a valve cover of the newly added fixed valve device are used as axial limiting parts at the inner ends of the annular clamping jaws.
Furthermore, the lower end of the reducing outer sleeve is connected with a pump lower tail pipe, a sieve pipe is installed on the pump lower tail pipe, and a plug is installed at the lower port of the pump lower tail pipe.
Compared with the prior art, the utility model following beneficial effect has:
in the production process, when the fixed valve seat of the original fixed valve device of the well is punctured, the sucker rod string is lifted in the upper operation, the spare newly-added fixed valve device is added to replace the original fixed valve device with the fixed valve seat which is punctured, the newly-added fixed valve device is located in the short pump barrel of the input tubular pump barrel and on the impurity-blocking valve cover to form a double-valve structure, the original fixed valve device is replaced to work, then the sucker rod string is put in, the production is quickly recovered, the recovery of the operation fixed pipe string is realized, the pump checking period is prolonged, the environment is protected, the pulling-out times of the pipe pump are reduced, the service life of an oil pipe is prolonged, and the cost is saved; the input type tubular pump barrel is used for blocking impurities and collecting settled sand from top to bottom of the original fixed valve device, and the lower oil inlet pipe column of the pump hung on the original fixed valve device also plays a role in blocking impurities and settling sand, so that the service life of the original pump is prolonged; the ability of the professional to analyze, diagnose and solve the problem is improved.
Drawings
Fig. 1 is the structure schematic diagram of the fixed valve device for pump retentivity of the stationary tubular column of the present invention.
In the figure: the device comprises a pump barrel 1, an upper valve cover 2, an upper valve ball 3, an upper valve seat 4, a retaining ring 5, an upper compression joint 6, a ring-shaped clamping jaw 7, a short pump barrel 8, a miscellaneous valve retaining cover 9, a reducing outer sleeve 10, a jacking short joint 11, an original valve cover 12, an original valve ball 13, an original valve seat 14, an original compression joint 15, an miscellaneous sieve retaining cover 16, a pump tail pipe 17, a sieve pipe 18 and a plug 19.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Example 1:
as shown in fig. 1, the fixed valve device for the reoccurrence of the immobile string inspection pump of the present embodiment includes an original fixed valve device;
the device also comprises a throwing-in type tubular pump barrel and a newly-added fixed valve device; the original fixed valve device and the newly-added fixed valve device are both arranged in the input type tubular pump barrel, and the newly-added fixed valve device is positioned above the original fixed valve device;
a miscellaneous valve blocking cover is arranged between the newly increased fixed valve device and the original fixed valve device; a space between the outer wall of the impurity blocking valve cover and the inner wall of the input type tubular pump barrel forms an impurity deposition cavity;
the impurity blocking valve cover is provided with a first liquid outlet hole and a second liquid outlet hole, the first liquid outlet hole is communicated with the newly-added fixed valve device, and the second liquid outlet hole is communicated with the deposit impurity cavity.
The original fixed valve device comprises an original valve cover 12, an original valve ball 13, an original valve seat 14 and an original compression joint 15, wherein the original valve is a one-way valve because the original valve belongs to the known technology, and the description is not repeated, so that the original fixed valve device is clear to a person skilled in the art.
Meanwhile, the newly added fixed valve device comprises an upper valve cover 2, an upper valve ball 3, an upper valve seat 4 and an upper compression joint 6, and the structure of the newly added fixed valve device also belongs to the known technology and is a one-way valve, which is not described again and is clear to the skilled in the art. The application only improves the method, and an external boss is arranged at the bottom of the compression joint 6 to fix the annular clamping jaw 7.
Furthermore, the input type tubular pump cylinder comprises a pump cylinder, a baffle ring, a short pump cylinder and a reducing outer sleeve which are sequentially connected from top to bottom.
Furthermore, the lower end of the original fixed valve device is connected with a sundry blocking sieve cover, and the sundry blocking sieve cover is provided with a liquid inlet hole.
Furthermore, the lower end of the impurity blocking valve cover is provided with a clamped end table which is clamped on an inner reducing step of the reducing outer sleeve and is tightly jacked by the jacking short section;
the jacking short section is respectively connected with the reducing outer sleeve and an original valve cover of an original fixed valve device;
the upper end of the impurity blocking screen cover is connected with an original pressing joint of an original fixed valve device.
Furthermore, the newly-added fixed valve device is fixed on the inner wall of the input type tubular pump barrel through a clamping mechanism.
Further, the clamping and fixing mechanism comprises a ring-shaped clamping jaw;
the outer end of the annular clamping jaw is clamped on the inner wall of the short pump barrel, and the inner end of the annular clamping jaw is clamped on the outer wall of the upper compression joint of the newly-added fixed valve device;
the lower end of the upper compression joint of the newly added fixed valve device is pressed on the impurity blocking valve cover.
Furthermore, the baffle ring and the outer pipe are used as axial limiting pieces at the outer ends of the annular clamping jaws; the lower end of the compression joint of the newly added fixed valve device is provided with an outer boss, and the outer boss and a valve cover of the newly added fixed valve device are used as axial limiting parts at the inner ends of the annular clamping jaws.
Furthermore, the lower end of the reducing outer sleeve is connected with a pump lower tail pipe, a sieve pipe is installed on the pump lower tail pipe, and a plug is installed at the lower port of the pump lower tail pipe.
The impurity blocking valve cover 9 and the impurity blocking screen cover 16 play a role in preventing impurities from entering the pump. The original valve cover 12 is in threaded connection with the jacking nipple 11, the original compression joint 15 is in threaded connection with the original valve ball 13 to fix the original valve seat 14, and the original valve ball 13 is seated on the original valve seat 14. The impurity blocking screen cover 16 is connected with the original pressing joint 15 in a threaded mode, so that the effect of preventing impurities from entering the pump is achieved, and the service life of the original fixed valve device is prolonged.
Before the sucker rod is started, the pipe column is subjected to positive pressure test, whether an oil pipe of the pipe column leaks or not is checked, and if the oil pipe leaks, the pipe column is operated to check the pump; then the sucker rod and the oil well pump piston are pulled out, whether the surface of the piston is worn and lost is checked, and if the surface is lost, a new piston or a pipe column check pump is replaced; and then, carrying out positive pressure test on the pipe column, verifying whether the original fixed valve device of the oil well pump is lost or not, if the original fixed valve assembly of the oil well pump is lost, selecting standby newly-added fixed valve devices with different sizes to be put into the pipe column according to the type and the size of the oil well pump, and then, carrying out positive pressure test on the pipe column to check whether the standby newly-added fixed valve devices are lost or not, if the novel fixed valve assembly is not lost, putting the sucker rod with the piston down, and completing well in a trial drawing and matching manner.
Furthermore, in the production process, when the original valve seat 14 of the original fixed valve device of the well is punctured, the sucker rod column is lifted in the upper operation, the spare new fixed valve device is added to replace the original fixed valve device with the original valve seat 14, the new fixed valve device is located in the short pump cylinder 8 of the drop-in type tubular pump cylinder and on the impurity-blocking valve cover 9, a double-valve structure is formed, and the original fixed valve device is replaced to work. And verifying whether the newly-added spare fixed valve device is effective or not, wherein the verification method adopts positive pressure test on the pipe column, namely, positive pressure test on the oil pipe at the upper part of the pump barrel 1 is carried out until the pressure is 6MPa, and the pressure is not reduced after 5 minutes of pressure stabilization, thereby indicating that the replacement is successful. Then the sucker rod string is put in, the well is opened to recover the production, the recovery of the production without moving the string is realized,
example 2:
as shown in fig. 1, the fixed valve device for the reoccurrence of the immobile string inspection pump of the present embodiment includes an original fixed valve device;
the device also comprises a throwing-in type tubular pump barrel and a newly-added fixed valve device; the original fixed valve device and the newly-added fixed valve device are both arranged in the input type tubular pump barrel, and the newly-added fixed valve device is positioned above the original fixed valve device;
a miscellaneous valve blocking cover is arranged between the newly increased fixed valve device and the original fixed valve device; a space between the outer wall of the impurity blocking valve cover and the inner wall of the input type tubular pump barrel forms an impurity deposition cavity;
the impurity blocking valve cover is provided with a first liquid outlet hole and a second liquid outlet hole, the first liquid outlet hole is communicated with the newly-added fixed valve device, and the second liquid outlet hole is communicated with the deposit impurity cavity.
Furthermore, the input type tubular pump cylinder comprises a pump cylinder, a baffle ring, a short pump cylinder and a reducing outer sleeve which are sequentially connected from top to bottom.
Furthermore, the lower end of the original fixed valve device is connected with a sundry blocking sieve cover, and the sundry blocking sieve cover is provided with a liquid inlet hole.
Furthermore, the lower end of the impurity blocking valve cover is provided with a clamped end table which is clamped on an inner reducing step of the reducing outer sleeve and is tightly jacked by the jacking short section;
the jacking short section is respectively connected with the reducing outer sleeve and an original valve cover of an original fixed valve device;
the upper end of the impurity blocking screen cover is connected with an original pressing joint of an original fixed valve device.
Furthermore, the newly-added fixed valve device is fixed on the inner wall of the input type tubular pump barrel through a clamping mechanism.
Example 3:
as shown in fig. 1, the fixed valve device for the reoccurrence of the immobile string inspection pump of the present embodiment includes an original fixed valve device;
the device also comprises a throwing-in type tubular pump barrel and a newly-added fixed valve device; the original fixed valve device and the newly-added fixed valve device are both arranged in the input type tubular pump barrel, and the newly-added fixed valve device is positioned above the original fixed valve device;
a miscellaneous valve blocking cover is arranged between the newly increased fixed valve device and the original fixed valve device; a space between the outer wall of the impurity blocking valve cover and the inner wall of the input type tubular pump barrel forms an impurity deposition cavity;
the impurity blocking valve cover is provided with a first liquid outlet hole and a second liquid outlet hole, the first liquid outlet hole is communicated with the newly-added fixed valve device, and the second liquid outlet hole is communicated with the deposit impurity cavity.
Although fig. 1 is used in all the above embodiments, it is obvious to those skilled in the art that a separate drawing is not shown as long as parts or structural features missing from the embodiments are removed from the drawing. As will be clear to the skilled person. Of course, the embodiments with more components are only the preferred embodiments, and the embodiments with fewer components are the basic embodiments, but the basic objects of the present invention can also be achieved, so that all these modified embodiments are within the protection scope of the present invention.
All parts and components which are not discussed in the present application and the connection mode of all parts and components in the present application belong to the known technology in the technical field. The application is direct and will not be described in detail.
In the present application, the term "plurality" means two or more unless expressly defined otherwise. The terms "mounted," "connected," "fixed," and the like are used broadly and should be construed to include, for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or unit indicated must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A fixed valve device for the recovery of a fixed tubular column inspection pump comprises an original fixed valve device;
it is characterized by also comprising a throwing-in type tubular pump barrel and a newly-added fixed valve device; the original fixed valve device and the newly-added fixed valve device are both arranged in the input type tubular pump barrel, and the newly-added fixed valve device is positioned above the original fixed valve device;
a miscellaneous valve blocking cover is arranged between the newly increased fixed valve device and the original fixed valve device; a space between the outer wall of the impurity blocking valve cover and the inner wall of the input type tubular pump barrel forms an impurity deposition cavity;
the impurity blocking valve cover is provided with a first liquid outlet hole and a second liquid outlet hole, the first liquid outlet hole is communicated with the newly-added fixed valve device, and the second liquid outlet hole is communicated with the deposit impurity cavity.
2. The fixed valve device for the rehabilitation of the pump inspection with the fixed tubular column according to claim 1, wherein the throw-in tubular pump barrel comprises a pump barrel, a baffle ring, a short pump barrel and a reducing outer sleeve which are sequentially connected from top to bottom.
3. The fixed valve device for the reoccurrence of the immobile pipe column pump inspection according to claim 2, wherein the lower end of the original fixed valve device is connected with a sundry blocking sieve cover, and the sundry blocking sieve cover is provided with a liquid inlet hole.
4. The fixed valve device for the reoccurrence of the immobile pipe column pump inspection according to claim 3, wherein the lower end of the impurity blocking valve cover is provided with a clamped end table, and the clamped end table is clamped on the inner reducing step of the reducing outer sleeve and is tightly jacked by the jacking short section;
the jacking short section is respectively connected with the reducing outer sleeve and an original valve cover of an original fixed valve device;
the upper end of the impurity blocking screen cover is connected with an original pressing joint of an original fixed valve device.
5. The fixed valve device for the rehabilitation of the pump for the inspection of the immobile pipe column as claimed in claim 2 or 3, wherein the newly added fixed valve device is fixed on the inner wall of the throw-in type pipe pump barrel through a clamping mechanism.
6. The fixed valve device for the reoccurrence of the immobile string inspection pump of claim 5, wherein the clamping mechanism comprises a ring-shaped jaw;
the outer end of the annular clamping jaw is clamped on the inner wall of the short pump barrel, and the inner end of the annular clamping jaw is clamped on the outer wall of the upper compression joint of the newly-added fixed valve device;
the lower end of the upper compression joint of the newly added fixed valve device is pressed on the impurity-blocking valve cover.
7. The fixed valve device for the reoccurrence of the immobile string inspection pump according to claim 6, wherein the baffle ring and the outer pipe are used as axial limiting pieces at the outer ends of the annular claws; the lower end of the compression joint of the newly added fixed valve device is provided with an outer boss, and the outer boss and a valve cover of the newly added fixed valve device are used as axial limiting parts at the inner ends of the annular clamping jaws.
8. The fixed valve device for the reoccurrence of the immobile string inspection pump of claim 2 or 3, wherein the lower end of the reducing outer sleeve is connected with a pump lower tail pipe, a sieve pipe is arranged on the pump lower tail pipe, and a plug is arranged at the lower port of the pump lower tail pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222694314.9U CN218717440U (en) | 2022-10-13 | 2022-10-13 | Fixed valve device for pump retentivity without moving pipe column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222694314.9U CN218717440U (en) | 2022-10-13 | 2022-10-13 | Fixed valve device for pump retentivity without moving pipe column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218717440U true CN218717440U (en) | 2023-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222694314.9U Active CN218717440U (en) | 2022-10-13 | 2022-10-13 | Fixed valve device for pump retentivity without moving pipe column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218717440U (en) |
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2022
- 2022-10-13 CN CN202222694314.9U patent/CN218717440U/en active Active
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