CN112049784A - Movable cylinder oil well pump - Google Patents
Movable cylinder oil well pump Download PDFInfo
- Publication number
- CN112049784A CN112049784A CN202011133638.4A CN202011133638A CN112049784A CN 112049784 A CN112049784 A CN 112049784A CN 202011133638 A CN202011133638 A CN 202011133638A CN 112049784 A CN112049784 A CN 112049784A
- Authority
- CN
- China
- Prior art keywords
- pump
- assembly
- plunger
- oil well
- coupling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000010727 cylinder oil Substances 0.000 title abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract description 42
- 230000008878 coupling Effects 0.000 claims abstract description 32
- 238000010168 coupling process Methods 0.000 claims abstract description 32
- 238000005859 coupling reaction Methods 0.000 claims abstract description 32
- 239000003129 oil well Substances 0.000 claims abstract description 30
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 5
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 2
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 2
- 241001330002 Bambuseae Species 0.000 claims description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 2
- 239000011425 bamboo Substances 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims 6
- 239000004576 sand Substances 0.000 abstract description 22
- 239000003921 oil Substances 0.000 abstract description 18
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000605 extraction Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 4
- 238000007689 inspection Methods 0.000 abstract 1
- 238000011144 upstream manufacturing Methods 0.000 description 6
- 239000010985 leather Substances 0.000 description 5
- 238000005086 pumping Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004018 waxing Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/02—Packing the free space between cylinders and pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The invention relates to a movable cylinder oil well pump, which belongs to the technical field of oil extraction machinery and mainly comprises a pump cylinder assembly, a plunger assembly and an outer pipe lining assembly, wherein the pump cylinder assembly is arranged at the left end of the plunger assembly through a pump cylinder coupling, and the plunger assembly is arranged at the left end of the outer pipe lining assembly through a plunger coupling. The invention has the advantages that: the sand production of the oil well can be effectively avoided, the movable cylinder oil-well pump cannot be buried by sand, and the movable cylinder oil-well pump can be smoothly lifted out of a well mouth; the multistage sealing structure is adopted in the internal structure of the sand-discharging type oil well pump, so that sealing failure caused by sand cushion at the sealing position of the valve ball and the valve seat can be effectively reduced, the rod type oil well pump is convenient to inspect, the workload of pump inspection operation is reduced, manpower and material resources are saved, and the sand-discharging type oil well pump is suitable for efficient exploitation of a sand-discharging gas-discharging type oil well.
Description
Technical Field
The invention relates to the technical field of oil extraction machinery, in particular to a movable cylinder oil well pump.
Background
When the rod-type oil well pump is checked, an oil pipe does not need to be lifted, and the pump can be lifted for maintenance only by lifting the oil pumping rod, so that the rod-type oil well pump is convenient to check, the working workload is less, and the working time is short. The rod-type oil well pump is easy to block the pump, the plunger drives the pump barrel to move up and down, the well mouth does not discharge liquid, or sand cushion on the valve ball valve seat causes the well mouth not to discharge liquid, and the well is frequently repaired.
The sand production condition of part of oil wells can occur, the produced sand is deposited between the rod-type oil well pump and the base to cause sand burying, wherein the plunger and the pump cylinder are in a descending state when sand grains enter a gap or scaling and waxing are carried out, the self descending force of the rod column is easy to be unlocked, and the sand grains leave the gap between the plunger and the pump cylinder due to the gravity, so that the probability of pump locking is greatly reduced; when examining the pump lifter, the rod-type oil-well pump is blocked by sand and can not be carried out, makes the operation of examining the pump operation complicated to a certain extent, not only needs to handle the sucker rod back-off, still need the oil pipe again to examine the pump, increases work load for examining the pump operation, causes manpower and materials loss.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a movable cylinder oil well pump.
The technical scheme adopted by the invention for realizing the purpose is as follows: the utility model provides a move a section of thick bamboo oil-well pump, includes pump cylinder assembly, plunger assembly and outer tube bush assembly, the pump cylinder assembly passes through the pump cylinder coupling and sets up in the left end of plunger assembly, the plunger assembly passes through the plunger coupling and sets up in the left end of outer tube bush assembly.
As a preferred technical scheme, the pump cylinder assembly comprises a pump cylinder upper cover, a closed valve cover, an upper conversion connector, a pump cylinder, a pump pipe plug, an upstream valve ball seat and a multistage conical valve seat, wherein the pump cylinder upper cover is arranged at the left end of the closed valve cover, the right end of the closed valve cover is connected with the pump cylinder through the upper conversion connector, the pump pipe plug is arranged at the right end of the pump cylinder, the upstream valve ball seat is arranged in the closed valve cover, and the multistage conical valve seat is movably arranged at the right end of the pump pipe plug.
As a preferred technical scheme, the plunger assembly comprises a plunger upper valve cover, a plunger, a pull tube upper coupling, a pull tube lower coupling, a sealing cup mandrel, a sealing cup and a reducing coupling, wherein the plunger upper valve cover is arranged at the left end of the plunger, the pull tube is arranged at the right end of the plunger through the pull tube upper coupling, the sealing cup mandrel is fixedly connected with the pull tube through the pull tube lower coupling, the sealing cup is arranged at the right end of the sealing cup mandrel, and the reducing coupling is arranged at the right end of the sealing cup.
As a preferable technical scheme of the invention, the outer pipe bushing assembly comprises an oil pipe cover, a coupling and a sealing bushing, and the oil pipe cover is fixedly connected with the sealing bushing through the coupling.
The movable cylinder oil well pump is characterized in that: and a flow passage hole is processed in the upper traveling valve seat and is communicated with the closed valve cover.
The movable cylinder oil well pump is characterized in that: an annular space is arranged between the sealing cup core shaft and the pull tube to form a liquid flow channel.
The movable cylinder oil well pump is characterized in that: the sealing leather cup is characterized in that an annular plane valve structure is arranged between the sealing leather cup and the sealing leather cup mandrel, and a sealing gasket is arranged on the surface of the annular plane valve structure.
The invention has the beneficial effects that: the movable barrel oil well pump adopts the pump barrel to move up and down, and simultaneously keeps the plunger immobile, so that sand production of an oil well can be effectively avoided, the movable barrel oil well pump cannot be buried by sand, and the movable barrel oil well pump can be smoothly lifted out of a well mouth; the inner structure of the valve adopts a multi-stage sealing structure, so that the sealing failure caused by the sand cushion at the sealing position of the valve ball and the valve seat can be effectively reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention as a whole;
FIG. 2 is a schematic structural view of the pump barrel assembly of the present invention;
FIG. 3 is a schematic structural view of the plunger assembly of the present invention;
FIG. 4 is a schematic structural view of the outer tube bushing assembly of the present invention. FIG. 1 is a general diagram of a movable-barrel oil pumping structure
FIG. 5 is a schematic view of the principle
FIG. 6 schematic representation of a well
FIG. 7 is a schematic drawing of a pumping system
FIG. 8 schematic of a pump
In the figure: the pump cylinder assembly 1, the pump cylinder upper cover 11, the closed valve cover 12, the upper conversion joint 13, the pump cylinder 14, the pump pipe plug 15, the upstream traveling valve ball seat 16, the multistage conical valve seat 17, the plunger assembly 2, the upper valve cover of the plunger 21, the plunger 22, the upper coupling of the pull pipe 23, the pull pipe 24, the lower coupling of the pull pipe 25, the sealing cup mandrel 26, the sealing cup 27, the reducing coupling 28, the outer pipe bushing assembly 3, the oil pipe cover 31, the coupling 32 and the sealing bushing 33.
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. 1-4, a movable barrel oil pump includes a pump barrel assembly 1, a plunger assembly 2 and an outer tube liner assembly 3, wherein the pump barrel assembly 1 is disposed at the left end of the plunger assembly 2 through a pump barrel collar, and the plunger assembly 2 is disposed at the left end of the outer tube liner assembly 3 through a plunger collar.
The further measure of taking is, pump barrel assembly 1 includes pump barrel upper shield 11, closed valve bonnet 12, go up conversion joint 13, pump barrel 14, pump line stopcock 15, go up traveling valve ball seat 16 and multistage conical surface disk seat 17, pump barrel upper shield 11 sets up in the left end of closed valve bonnet 12, the right-hand member of closed valve bonnet 12 is connected with pump barrel 14 through going up conversion joint 13, pump line stopcock 15 sets up in the right-hand member of pump barrel 14, it sets up in the inside of closed valve bonnet 12 to go up traveling valve ball seat 16, multistage conical surface disk seat 17 movable mounting is in the right-hand member of pump line stopcock 15, the dismouting of being convenient for.
The plunger assembly 2 further comprises a plunger upper valve cover 21, a plunger 22, a pull tube upper coupling 23, a pull tube 24, a pull tube lower coupling 25, a sealing cup mandrel 26, a sealing cup 27 and a reducing coupling 28, wherein the plunger upper valve cover 21 is arranged at the left end of the plunger 22, the pull tube 24 is arranged at the right end of the plunger 22 through the pull tube upper coupling 23, the sealing cup mandrel 26 is fixedly connected with the pull tube 24 through the pull tube lower coupling 25, the sealing cup 27 is arranged at the right end of the sealing cup mandrel 26, the reducing coupling 28 is arranged at the right end of the sealing cup 27, leakage is reduced through the structures of the sealing cup mandrel 26 and the sealing cup 27, and the sealing effect is improved.
The further measure is that the outer pipe bushing assembly 3 comprises an oil pipe cover 31, a coupling 32 and a sealing bushing 33, and the oil pipe cover 31 is fixedly connected with the sealing bushing 33 through the coupling 32, so that the installation is convenient.
In the invention:
specifically, the interior of the upstream valve ball seat 16 is processed with a flow passage hole and communicated with the inner closed valve housing 12, so that the eccentric wear force of the upstream valve ball seat 16 in the closed valve housing 12 is eliminated, and the eccentric wear of the upstream valve ball seat 16 and the closed valve housing 12 is prevented.
Specifically, an annular space is arranged between the sealing cup core shaft 26 and the pull tube 24 to form a liquid flow channel, so that sand grains are prevented from remaining in a gap between the sealing cup core shaft 26 and the pull tube 24, and sand blockage can be effectively avoided.
Specifically, be provided with annular plane valve structure between sealed leather cup 27 and the sealed leather cup dabber 26, annular plane valve structure is provided with sealed the pad on the surface, compares current sand control oil-well pump structure simple more high-efficient, and the reliability is better, more is applicable to the exploitation of the sand outlet oil well, and its inner structure adopts multistage seal structure, can effectively reduce because the sand grain pad is sealed the sealed inefficacy that leads to in valve ball and disk seat department.
The working principle of the invention is as follows: when in use, the working principle is the same as that of a conventional tubular oil well pump when oil is normally extracted; when a pump lifting rod needs to be checked, the rod-type oil-well pump is clamped by sand and cannot be lifted out, wherein when sand grains or scaling and wax deposition enter a gap between the plunger assembly 2 and the pump barrel assembly 1, the gap is in a descending state, the pump barrel assembly 1 is utilized, the bottom of a closed valve cover 12 of the pump barrel assembly 1 is an oil inlet, the top of a pump barrel 14 is an oil outlet, during a downward stroke, a pull pipe 24 pushes the plunger 22 to move downwards, the volume of a pump cavity of the pump barrel 14 is reduced, the pressure is increased, the pump barrel assembly 1 is closed, the plunger assembly 2 is opened, oil in the pump cavity of the pump barrel 14 is discharged to the upper part of the pump, and thus the plunger 22 in the plunger assembly 2 does not stop reciprocating up and down, so that the purpose of extracting crude oil from the underground to the ground and smoothly lifting. The invention adopts the pump barrel to move up and down, and simultaneously keeps the plunger immobile, thereby effectively avoiding sand production of an oil well, avoiding sand burying of the oil pump with the movable barrel and ensuring that the oil pump with the movable barrel can be smoothly lifted out of a well head.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The utility model provides a move a section of thick bamboo oil-well pump, includes pump cylinder assembly (1), plunger assembly (2) and outer tube bush assembly (3), its characterized in that: the pump cylinder assembly (1) is arranged at the left end of the plunger assembly (2) through a pump cylinder collar, and the plunger assembly (2) is arranged at the left end of the outer pipe lining assembly (3) through a plunger collar.
2. The moving barrel oil well pump according to claim 1, characterized in that: pump barrel assembly (1) is including pump barrel upper shield (11), closed valve bonnet (12), last conversion joint (13), pump barrel (14), pump line stopcock (15), last traveling valve ball seat (16) and multistage conical surface disk seat (17), pump barrel upper shield (11) set up in the left end of closed valve bonnet (12), the right-hand member of closed valve bonnet (12) is connected with pump barrel (14) through last conversion joint (13), pump line stopcock (15) set up in the right-hand member of pump barrel (14), last traveling valve ball seat (16) set up in the inside of closed valve bonnet (12), multistage conical surface disk seat (17) movable mounting is in the right-hand member of pump line stopcock (15).
3. The moving barrel oil well pump according to claim 1, characterized in that: plunger assembly (2) include valve bonnet (21), plunger (22), trombone slide upper portion coupling (23), trombone slide (24), trombone slide lower part coupling (25), sealed packing cup dabber (26), sealed packing cup (27) and reducing coupling (28) on the plunger, valve bonnet (21) set up in the left end of plunger (22) on the plunger, trombone slide (24) set up in the right-hand member of plunger (22) through trombone slide upper portion coupling (23), sealed packing cup dabber (26) are through trombone slide lower part coupling (25) and trombone slide (24) fixed connection, sealed packing cup (27) set up in the right-hand member of sealed packing cup dabber (26), reducing coupling (28) set up in the right-hand member of sealed packing cup (27).
4. The moving barrel oil well pump according to claim 1, characterized in that: the outer pipe bushing assembly (3) comprises an oil pipe cover (31), a coupling (32) and a sealing bushing (33), wherein the oil pipe cover (31) is fixedly connected with the sealing bushing (33) through the coupling (32).
5. The moving barrel oil well pump according to claim 2, characterized in that: and a flow passage hole is processed in the upper traveling valve seat (16) and is communicated with the closed valve cover (12) in the upper traveling valve seat.
6. The moving barrel oil well pump according to claim 3, characterized in that: an annular space is arranged between the sealing cup core shaft (26) and the pull tube (24) to form a liquid flow channel.
7. The moving barrel oil well pump according to claim 3, characterized in that: the sealing cup is characterized in that an annular plane valve structure is arranged between the sealing cup (27) and the sealing cup mandrel (26), and a sealing gasket is arranged on the surface of the annular plane valve structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011133638.4A CN112049784A (en) | 2020-10-21 | 2020-10-21 | Movable cylinder oil well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011133638.4A CN112049784A (en) | 2020-10-21 | 2020-10-21 | Movable cylinder oil well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112049784A true CN112049784A (en) | 2020-12-08 |
Family
ID=73606119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011133638.4A Pending CN112049784A (en) | 2020-10-21 | 2020-10-21 | Movable cylinder oil well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112049784A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114562448A (en) * | 2022-03-03 | 2022-05-31 | 山东立鑫石油机械制造有限公司 | Multi-section plunger oil-well pump for pumping thick oil |
-
2020
- 2020-10-21 CN CN202011133638.4A patent/CN112049784A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114562448A (en) * | 2022-03-03 | 2022-05-31 | 山东立鑫石油机械制造有限公司 | Multi-section plunger oil-well pump for pumping thick oil |
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