CN216866647U - Oil drainage and well washing integrated device with environment-friendly operation function - Google Patents
Oil drainage and well washing integrated device with environment-friendly operation function Download PDFInfo
- Publication number
- CN216866647U CN216866647U CN202220071829.0U CN202220071829U CN216866647U CN 216866647 U CN216866647 U CN 216866647U CN 202220071829 U CN202220071829 U CN 202220071829U CN 216866647 U CN216866647 U CN 216866647U
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- central cylinder
- outer sleeve
- positioning groove
- wall surface
- clamping block
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- 238000005406 washing Methods 0.000 title claims description 16
- 238000011010 flushing procedure Methods 0.000 claims abstract description 5
- 239000003129 oil well Substances 0.000 abstract description 16
- 238000009434 installation Methods 0.000 abstract description 4
- 239000003208 petroleum Substances 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 9
- 230000008878 coupling Effects 0.000 description 8
- 238000010168 coupling process Methods 0.000 description 8
- 238000005859 coupling reaction Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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Abstract
The utility model discloses an oil drainage and normal flushing integrated device with an environment-friendly operation function, which relates to the technical field of petroleum well operation tools and comprises an outer sleeve, wherein a central cylinder is inserted in the outer sleeve, a first shear pin is arranged on one side wall of the outer sleeve, the central cylinder is fixed in the outer sleeve through the first shear pin, a mandril base is inserted in the central cylinder, an installation hole is formed in one side wall of the central cylinder, a clamping block is arranged in the installation hole, a first positioning groove is formed in one side wall of the mandril base, one end of the clamping block is inserted in the first positioning groove, the other end of the clamping block abuts against the inner wall surface of the outer sleeve, a second positioning groove is formed in the inner wall surface of the outer sleeve and positioned above the clamping block, the second positioning groove is matched with the other end of the clamping block, an upper mandril is fixedly connected in the central cylinder on the mandril base, and the inner ball valve of an oil well pump can be pushed through the upper mandril, and opening of the ball valve is completed, and the functions of oil discharge in the oil pipe and well flushing are realized.
Description
Technical Field
The utility model relates to the technical field of petroleum well operation tools, in particular to an oil drainage and forward well washing integrated device with an environment-friendly operation function.
Background
In the process of oil well exploitation, three-pumping equipment is a main exploitation means of the oil field at present, and workover operation is a main link of oil well production. In order to realize clean and environment-friendly operation, certain technical requirements are imposed on matched underground devices.
The oil drain device comprises a sliding sleeve body and a receiving barrel, wherein the sliding sleeve body is connected with the receiving barrel, the lower part in the sliding sleeve body is provided with a receiving ring, the outer wall of the upper part of the sliding sleeve body is provided with two holes, and the two holes are symmetrically arranged about the central axis of the sliding sleeve body; the oil release device is characterized in that the two holes are internally and respectively provided with an oil release body and a rupture disk in a sealing mode, the oil release body is a cylinder, a through hole is formed in one end, close to the outer wall, of the oil release body, one end, close to the inner wall, of the oil release body is sealed, and the end of the oil release body exceeds the central shaft of the sliding sleeve body. The oil drainer is connected between the fixed valve and the traveling valve, and can open the pressure relief function by using two modes of impacting and breaking an oil drain pin in an oil pipe and breaking a rupture disk by hydraulic pressure.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems that the oil drain device is connected to the upper part of a pump fixing valve and needs to bear the pressure of an oil pipe column, and a sliding sleeve type oil drain device and a compression type oil drain device are all provided with sealing rings, so that the oil drain device is easy to lose effectiveness after long-term underground pressurized work; the impact type oil drain device aims at the problems that wax deposition is serious in part of oil wells, the downward impact force of an input impact rod is insufficient, and the oil drain device cannot be opened; the pressing type oil pipe does not have high pressure bearing capacity, so that the application range of the oil pipe is limited. Based on the defects of the prior art, the utility model provides the oil drainage and well flushing integrated device with the environment-friendly operation function, the device is connected below a pump, the pump efficiency is not influenced, the influence of the factors is avoided, meanwhile, the tool overflow area is large, the oil well cleaning operation can be conveniently realized by positive well flushing, and the operation requirement of the environment-friendly part on the oil well is met.
In order to achieve the purpose, the utility model is realized by the following technical scheme: the integrative device of well is just being washed in draining with environmental protection operation function connects to put the tubular column through carrying under the pump, makes the release of inside energy storage mechanism, goes up the ejector pin and goes upward, makes opening of the fixed ball valve of oil-well pump draining, can just wash the well simultaneously. The device comprises an outer sleeve, a central cylinder is inserted in the outer sleeve, a first shear pin is arranged on one side wall of the outer sleeve, the central cylinder is fixed in the outer sleeve through the first shear pin, a mandril base is inserted in the central cylinder, a mounting hole is formed in one side wall of the central cylinder, a fixture block is arranged in the mounting hole, a first positioning groove is formed in one side wall of the mandril base, one end of the fixture block is inserted in the first positioning groove, the other end of the fixture block abuts against the inner wall surface of the outer sleeve, a second positioning groove is formed in the inner wall surface of the outer sleeve and positioned above the fixture block, the second positioning groove is matched with the other end of the fixture block, an upper mandril is fixedly connected on the mandril base and positioned in the central cylinder, a retaining ring is fixedly connected on the inner wall surface of the central cylinder and positioned below the mandril base, a first spring is arranged in the central cylinder, the upper end of the first spring abuts against the lower wall surface of the mandril base, the lower end of the first spring abuts against the upper wall surface of the retaining ring, an inner threaded opening is formed in the inner side of the upper end of the central cylinder, a locking ring is mounted at the bottom of the inner threaded opening, the inner threaded opening is located above the locking ring, a locking sleeve is screwed on the locking ring, a barb groove is formed in the circumferential wall surface above the ejector rod seat, the barb groove is matched with the locking ring, and a pipe hoop connecting mechanism is mounted below the outer sleeve.
Preferably, ferrule coupling mechanism include the rigid coupling in the lower connecting pipe of overcoat bottom, a pair of opening has been seted up on the connecting pipe lateral wall face down, and is a pair of equal rigid coupling has the mounting panel in the opening, the rigid coupling has the fixed axle on the mounting panel lateral wall face, it is connected with first lug to rotate on the fixed axle, the fixed axle with install the torsional spring between the first lug, just be located on the mounting panel lateral wall face fixed axle below one side rigid coupling has the second to cut the nail.
Preferably, a pair of the mounting plates are provided with notches, soluble rubber sleeves are sleeved in the notches, and the first lugs are limited through the soluble rubber sleeves.
Preferably, the bottom of the first positioning groove is an inclined surface.
Preferably, the upper end surface of the upper ejector rod is of an arc-shaped groove structure.
Preferably, the upper ejector rod is fixedly connected with the ejector rod seat in a threaded screwing mode.
Advantageous effects
The utility model provides an oil drainage and well washing integrated device with an environment-friendly operation function, which has the following beneficial effects:
1. the pump efficiency is not affected when the pump is connected below the pump.
2. Meeting the requirements of pump collision, forward washing and back washing.
3. The overflow area is large, which is beneficial to the forward washing.
4. The forward washing is realized, and the hot washing efficiency is improved.
5. The manufacturing cost is low, and the popularization and the use are facilitated.
The device is brought into the underground by an oil pipe and connected to the lower end of an oil well pump, and normal production can be carried out when the device is lowered to a designed position. A backwash well or pump may be performed during production. When a pump needs to be checked, the device can be moved upwards by lifting the oil pipe column, when the device moves upwards, the gap of a casing collar is blocked, the first shear pin fails after being fractured due to the shearing force, the center barrel can simultaneously drive the fixture block to move upwards, when the fixture block moves to the second positioning groove, the fixture block seat loses the constraint of the fixture block, the upper ejector rod can move upwards under the pushing of the first energy storage spring, so that the steel ball of the oil well pump is pushed to move upwards, the opening of the ball valve is completed, and the oil drainage in the oil pipe and the normal well washing operation conditions are realized. And after the second shear pin is lifted continuously, the second shear pin is stressed and broken, the first lug is limited and fails, at the moment, the well is positively washed from the newly-seated well mouth, and the well is lifted out from the well after the well is washed, so that the whole process of workover operation is completed.
Drawings
Fig. 1 is a schematic structural diagram of the first embodiment.
Fig. 2 is an enlarged schematic view of a in fig. 1.
Fig. 3 is a top view of the ejector pin holder according to the present invention.
Fig. 4 is a schematic structural diagram of the second embodiment.
Fig. 5 is an enlarged schematic view of B in fig. 4.
Fig. 6 is an enlarged schematic view of C in fig. 4.
In the figure: 1-coating; 2-a central cylinder; 3-a jack-rod seat; 4-a baffle ring; 5-a first spring; 6-an ejector rod is arranged; 7-a locking sleeve; 8-a locking ring; 9-barb groove; 10-a fixture block; 11-a first positioning groove; 12-a second positioning groove; 13-a first shear pin; 15-opening; 16-a mounting plate; 17-a fixed shaft; 18-a first lug; 19-a second shear pin; 20-soluble gum cover; 21-a notch; 22-third shear pin; 23-a stop collar; 24-connecting sleeves; 25-lug seat; 26-lower joint; 27-lower liquid inlet pipe; 28-lower liquid inlet; 29-upper liquid feed pipe; 30-an upper liquid inlet; 31 a second lug; 32-steel balls; 33-lower lug inner sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: an integral oil drainage and normal well washing device with an environment-friendly operation function comprises an outer sleeve 1, a central cylinder 2 is inserted in the outer sleeve 1, a first shear pin 13 is installed on one side wall of the outer sleeve 1, the central cylinder 2 is fixed in the outer sleeve 1 through the first shear pin 13, a mandril base 3 is inserted in the central cylinder 2, an installation hole is formed in one side wall of the central cylinder 2, a fixture block 10 is installed in the installation hole, a first positioning groove 11 is formed in one side wall of the mandril base 3, one end of the fixture block 10 is inserted in the first positioning groove 11, the other end of the fixture block 10 is tightly propped against the inner wall surface of the outer sleeve 1, a second positioning groove 12 is formed in the inner wall surface of the outer sleeve 1 and positioned above the fixture block 10, the second positioning groove 12 is matched with the other end of the fixture block 10, an upper mandril 6 is fixedly connected on the mandril base 3 and positioned in the central cylinder 2, a stop ring 4 is fixedly connected to the inner wall surface of the central cylinder 2 and below the ejector rod seat 3, a first spring 5 is installed in the central cylinder 2, the upper end of the first spring 5 abuts against the lower wall surface of the ejector rod seat 3, the lower end of the first spring 5 abuts against the upper wall surface of the stop ring 4, an inner threaded opening is formed in the inner side of the upper end of the central cylinder 2, a locking ring 8 is installed at the bottom of the inner threaded opening, a locking sleeve 7 is screwed on the inner threaded opening and above the locking ring 8, a barb groove 9 is formed in the circumferential wall surface above the ejector rod seat 3, the barb groove 9 is matched with the locking ring 8, and a pipe hoop connecting mechanism is installed below the outer sleeve 1; the pipe hoop connecting mechanism comprises a lower connecting pipe 14 fixedly connected to the bottom of the outer sleeve 1, a pair of openings 15 are formed in the side wall surface of the lower connecting pipe 14, mounting plates 16 are fixedly connected into the pair of openings 15, a fixing shaft 17 is fixedly connected to the side wall surface of the mounting plate 16, a first lug 18 is rotatably connected to the fixing shaft 17, a torsion spring is arranged between the fixing shaft 17 and the first lug 18, and a second shear pin 19 is fixedly connected to the side wall surface of the mounting plate 16 and one side of the side wall surface, which is located below the fixing shaft 17, of the mounting plate 17; a notch 21 is formed in each of the pair of mounting plates 16, a soluble rubber sleeve 20 is sleeved in each notch 21, and the first lug 18 is limited by the soluble rubber sleeve 20; the bottom of the first positioning groove 11 is an inclined surface; the upper end surface of the upper ejector rod 6 is of an arc-shaped groove structure; the upper ejector rod 6 is fixedly connected with the ejector rod seat 3 in a threaded screwing mode.
The first embodiment is as follows: as can be seen from the attached figures 1-3 of the specification, when in use, the device is connected with an oil well pump through the connecting buckle at the upper end of the central cylinder 2, and the oil well pump is carried by an oil pipe and the device is lowered to a set position for normal production. At the moment, the soluble rubber sleeve 20 can be automatically melted in the well after a certain time, so that the first lug 18 is free from limitation, the first lug 18 can be outwards opened and released under the action of a torsion spring, when a pump needs to be checked, the oil well pump and the device can be simultaneously upwards moved by lifting the oil pipe, when the first lug 18 passes through a coupling, the first lug is clamped, so that the central cylinder 2 is upwards moved relative to the outer sleeve 1, at the moment, the first shear pin 13 is firstly sheared and fails due to shearing force, when the first positioning groove is aligned with the second positioning groove, the clamping block 10 loses the constraint of the clamping block seat, the upper ejector rod 6 can be upwards moved under the pushing of the first spring 5, so that the ball valve in the oil well pump can be pushed, the opening and locking of the ball valve are completed, the second shear pin of the oil pipe column is continuously lifted, the limitation of the first lug 18 fails, and the oil pipe column can be lifted out of the well mouth after the normal washing is completed, and the well repairing and environment-friendly operation is completed.
Example two: as can be seen from the accompanying drawings 1-6 of the specification, the embodiment is suitable for an overflow well to realize blowout prevention and oil drainage of a lower pipe, when the device is used on site, the device is lowered into a downhole design position from a tubing string, the second lug 31 is prevented from ascending when encountering a casing coupling by lifting the tubing string, the shear pin 30 is sheared, the lower liquid inlet pipe 29 and the lower lug seat 28 generate relative movement, the baffle ring 16 loses the limit on the first lug while the liquid inlet is opened, and the first lug 18 is released in the well to prepare for workover pipe lifting and oil drainage.
When the pump needs to be checked, the oil string is lifted up again, the first lug 18 is limited when meeting a casing coupling, the first positioning groove is aligned with the second positioning groove, the clamping block loses the constraint on the clamping block seat, meanwhile, the central cylinder 2 drives the upper liquid inlet pipe 29 to move upwards, the upper liquid inlet 30 moves into the upper lug seat 34, liquid in a well can not enter the oil pipe, the liquid cannot return upwards when the pipe is lifted up, under the action of the upper first spring 5, the upper ejector rod 6 and the ejector rod seat 3 move upwards to jack the oil well pump ball valve and are locked by the locking ring 8, and therefore the oil well pump ball valve is guaranteed to be in an open state all the time. Because the oil pipe is higher than the wellhead in the pipe lifting process, liquid in the pipe can flow into a shaft along the ball valve of an oil well pump, the ejector rod seat 3, the upper liquid inlet pipe 30, the steel ball 32 and the lower lug inner sleeve 33, and oil drainage in the pipe is realized. At the moment, the oil pipe is positively washed, the oil pipe and an oil rod are cleaned in a shaft, and environment-friendly cleaning operation is realized
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.
Claims (6)
1. An oil drainage and normal well washing integrated device with an environment-friendly operation function comprises an outer sleeve (1) and is characterized in that a central cylinder (2) is inserted into the outer sleeve (1), a first shear pin (13) is installed on one side wall of the outer sleeve (1), the central cylinder (2) is fixed in the outer sleeve (1) through the first shear pin (13), a push rod seat (3) is inserted into the central cylinder (2), a mounting hole is formed in one side wall of the central cylinder (2), a clamping block (10) is installed in the mounting hole, a first positioning groove (11) is formed in one side wall of the push rod seat (3), one end of the clamping block (10) is inserted into the first positioning groove (11), the other end of the clamping block (10) abuts against the inner wall surface of the outer sleeve (1), a second positioning groove (12) is formed in the inner wall of the outer sleeve (1) and above the clamping block (10), the second positioning groove (12) is matched with the other end of the clamping block (10), an upper ejector rod (6) is fixedly connected to the ejector rod seat (3) and is positioned in the central cylinder (2), a baffle ring (4) is fixedly connected to the inner wall surface of the central cylinder (2) and is positioned below the ejector rod seat (3), a first spring (5) is installed in the central cylinder (2), the upper end of the first spring (5) is abutted against the lower wall surface of the ejector rod seat (3), the lower end of the first spring (5) is abutted against the upper wall surface of the baffle ring (4), an inner threaded opening is formed in the inner side of the upper end of the central cylinder (2), a locking ring (8) is installed at the bottom of the inner threaded opening, a locking sleeve (7) is screwed above the locking ring (8), a barb groove (9) is formed in the circumferential wall surface above the ejector rod seat (3), and the barb groove (9) is matched with the locking ring (8), and a pipe hoop connecting mechanism is arranged below the outer sleeve (1).
2. An integral oil drainage and forward well washing device with an environment-friendly operation function as claimed in claim 1, wherein the pipe hoop connecting mechanism comprises a pair of openings (15) formed in the side wall of the central cylinder (2), a pair of mounting plates (16) is fixedly connected to the lower portion of the outer sleeve (1) through bolts, the mounting plates (16) are all slidably connected to the openings (15), a fixing shaft (17) is fixedly connected to the side wall surface of each mounting plate (16), a first lug (18) is rotatably connected to the fixing shaft (17), a torsion spring is arranged between the fixing shaft (17) and the first lug (18), and a second shear pin (19) is fixedly connected to one side of the lower portion of the fixing shaft (17) and is arranged on the side wall surface of each mounting plate (16).
3. An oil drainage and forward well washing integrated device with an environment-friendly operation function as claimed in claim 2, wherein a pair of mounting plates (16) are respectively provided with a notch (21), a soluble rubber sleeve (20) is sleeved in each notch (21), and the first lug (18) is limited by the soluble rubber sleeve (20).
4. An oil drainage and well washing integrated device with an environment-friendly operation function as claimed in claim 1, wherein the bottom of the first positioning groove (11) is an inclined surface.
5. An oil drainage and forward well flushing integrated device with an environment-friendly operation function as claimed in claim 1, wherein the upper end surface of the upper ejector rod (6) is of an arc-shaped groove structure.
6. An oil drainage and forward well washing integrated device with an environment-friendly operation function as claimed in claim 1, wherein the upper ejector rod (6) is fixedly connected with the ejector rod seat (3) in a threaded screwing mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220071829.0U CN216866647U (en) | 2022-01-12 | 2022-01-12 | Oil drainage and well washing integrated device with environment-friendly operation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220071829.0U CN216866647U (en) | 2022-01-12 | 2022-01-12 | Oil drainage and well washing integrated device with environment-friendly operation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216866647U true CN216866647U (en) | 2022-07-01 |
Family
ID=82150650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220071829.0U Expired - Fee Related CN216866647U (en) | 2022-01-12 | 2022-01-12 | Oil drainage and well washing integrated device with environment-friendly operation function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216866647U (en) |
-
2022
- 2022-01-12 CN CN202220071829.0U patent/CN216866647U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220701 |