CN116624130A - Gas lift plunger - Google Patents
Gas lift plunger Download PDFInfo
- Publication number
- CN116624130A CN116624130A CN202310896626.4A CN202310896626A CN116624130A CN 116624130 A CN116624130 A CN 116624130A CN 202310896626 A CN202310896626 A CN 202310896626A CN 116624130 A CN116624130 A CN 116624130A
- Authority
- CN
- China
- Prior art keywords
- gas lift
- lift plunger
- hollow
- inner diameter
- lower tail
- 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.)
- Granted
Links
- 230000009182 swimming Effects 0.000 claims abstract description 64
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 239000000084 colloidal system Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 239000012530 fluid Substances 0.000 abstract 2
- 239000007787 solid Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 230000001174 ascending effect Effects 0.000 description 6
- 230000005484 gravity Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- E21B43/122—Gas lift
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/204—Keeping clear the surface of open water from oil spills
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (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)
- Toys (AREA)
Abstract
The invention relates to the technical field of gas lift plungers, in particular to a gas lift plunger, which comprises a lower tail part of the gas lift plunger, wherein a hollow structure is arranged in the lower tail part of the gas lift plunger, the upper end of the lower tail part of the gas lift plunger is connected with an oil liquid collecting part, a swimming ball channel is arranged in the oil liquid collecting part, a swimming ball is arranged in the swimming ball channel, the lower end of the lower tail part of the gas lift plunger is connected with a counterweight base, and the counterweight base is of a hollow structure; the top of fluid collection portion is connected with salvages the seat end cover, and salvages the upper surface center pin symmetry evenly distributed of seat end cover and has the through-hole, and afterbody, fluid collection portion and the counter weight base all communicate each other under the gas lift plunger, play the effect that reduces the descending resistance of gas lift plunger, have ensured the steady gesture of gas lift plunger when going up or going down.
Description
Technical Field
The invention relates to the technical field of gas lift plungers, in particular to a gas lift plunger.
Background
The solid plunger is the most mature in practical use and longest in application time in a gas well exploitation site, has a relatively simple structure, belongs to an integral plunger, has no other combined parts, and adopts a sealing mode of turbulent flow sealing grooves on the outer surface. The solid plunger has the advantages of simple structure and low processing cost, but the solid plunger has large weight and needs large pressure of plunger gas lift.
In the prior art, in order to reduce the weight of the plunger, a hollow plunger appears, however, as the hollow plunger greatly reduces the mass of the plunger, the hollow plunger has large resistance to gas and liquid in the descending process of an oil pipe, the descending speed is slower, the stability is reduced, the well closing time is long, and the production efficiency is reduced.
Disclosure of Invention
The present invention is directed to solving at least one of the technical problems existing in the related art. To this end, the invention provides a gas lift plunger comprising:
the lower tail part of the gas lift plunger is internally provided with a hollow structure, the upper end of the lower tail part of the gas lift plunger is connected with an oil liquid collecting part, a swimming ball channel is arranged in the oil liquid collecting part, a swimming ball is arranged in the swimming ball channel, the lower end of the lower tail part of the gas lift plunger is connected with a counterweight base, and the counterweight base is of a hollow structure;
the top end of the oil liquid collecting part is connected with a salvaging seat end cover, through holes are symmetrically and uniformly distributed on the central shaft of the upper surface of the salvaging seat end cover, and the lower tail part of the gas lift plunger, the oil liquid collecting part and the counterweight base are mutually communicated, so that the descending resistance of the gas lift plunger is reduced;
the inner diameter of the swimming ball channel is smaller than that of the hollow structure at the lower tail part of the gas lift plunger, and the inner diameter of the counterweight base is smaller than that of the hollow structure at the lower tail part of the gas lift plunger;
the gas lift plunger is upward, the traveling ball can sink to the bottom end of the traveling ball channel, the gas lift plunger is downward, the traveling ball can float to the top end of the traveling ball channel, and gravity position change is generated by the movement of the traveling ball in the traveling ball channel based on the downward traction force of the counterweight base, so that the stable posture of the gas lift plunger in the upward or downward direction is ensured.
Further, the swimming lane comprises a first swimming lane and a second swimming lane, the length of the first swimming lane is the same as that of the second swimming lane, the inner diameter of the first swimming lane is larger than that of the second swimming lane, and the inner diameter of the second swimming lane is the same as that of the swimming ball.
Further, the hollow structure of the lower tail part of the gas lift plunger comprises a first hollow part and a second hollow part, wherein the inner diameter of the first hollow part is smaller than that of the second hollow part, and the length of the second hollow part is 12 times that of the first hollow part.
Further, according to the volume, the weight and the material density of the lower tail part of the gas lift plunger, the self-resistance coefficient of the lower tail part of the gas lift plunger is determined, and according to the self-resistance coefficient, the inner diameter of the second hollow part is determined, wherein the self-resistance coefficient is in a proportional relation with the inner diameter of the second hollow part.
Further, the self-resistance coefficient is calculated using the following formula:
wherein D represents the self-resistance coefficient, V represents the volume, V1 represents the standard volume, W represents the weight, W1 represents the standard weight,indicate density,/->Representing standard densities.
Further, the inner diameter of the second hollow portion is 2.5 times the inner diameter of the first hollow portion.
Further, the inner diameter of the first swimming lane is 2.5 times the inner diameter of the first hollow portion, and the inner diameter of the second swimming lane is 2 times the inner diameter of the first hollow portion.
Further, the lengths of the first swimming lane and the second swimming lane are respectively 2 times of the length of the first hollow part.
Further, a plurality of groups of air holes are uniformly distributed at the longitudinal position of the lower tail part of the gas lift plunger, and each group of air holes are uniformly distributed in the circumferential direction.
Further, annular protrusions are uniformly arranged on the outer portion of the lower tail portion of the gas lift plunger, and the counterweight base is of a colloid spherical structure and can be detached.
The above technical solutions in the embodiments of the present invention have at least one of the following technical effects:
the invention provides a gas lift plunger, which reduces the weight of the gas lift plunger and further reduces the resistance by arranging the lower tail part of the gas lift plunger into a hollow structure; the lower tail part of the gas lifting plunger, the oil liquid collecting part and the counterweight base are arranged to be of a mutually communicated structure, so that the upper space and the lower space of a shaft are communicated in the descending process of the gas lifting plunger, the descending resistance of the gas lifting plunger is further reduced, and the gas lifting plunger can be accelerated to fall down; the inner diameter of the swimming ball channel is set to be smaller than the inner diameter of the hollow structure at the lower tail part of the gas lift plunger, the inner diameter of the counterweight base is set to be smaller than the inner diameter of the hollow structure at the lower tail part of the gas lift plunger, and gravity position change is generated by the movement of the swimming ball in the swimming ball channel based on the lower traction force of the counterweight base, so that the stable posture of the gas lift plunger in the ascending or descending process is ensured; by setting the inner diameter of the first hollow part smaller than the inner diameter of the second hollow part, the length of the second hollow part is 12 times of the length of the first hollow part, and on the basis of guaranteeing the weight of the gas lift plunger, the gravity position of a solid part at the lower tail part of the gas lift plunger is balanced, so that the stable posture of the gas lift plunger during ascending or descending is further guaranteed; according to the volume, the weight and the material density of the lower tail part of the gas lift plunger, a self-resistance coefficient of the lower tail part of the gas lift plunger is determined, according to the self-resistance coefficient, the inner diameter of the second hollow part is determined, the self-resistance coefficient is in a proportional relation with the inner diameter of the second hollow part, and the gravity position of a solid part of the lower tail part of the gas lift plunger is further balanced by precisely controlling the hollow structure volume of the lower tail part of the gas lift plunger, so that the stable posture of the gas lift plunger during ascending or descending is further ensured; the inner diameter of the second hollow part is set to be 2.5 times of that of the first hollow part, so that the hollow structure volume of the lower tail part of the gas lift plunger is accurately controlled, and the stable posture of the gas lift plunger during ascending or descending is further ensured; the inner diameter of the first swimming ball channel is set to be 2.5 times of that of the first hollow part, and the inner diameter of the second swimming ball channel is set to be 2 times of that of the first hollow part, so that the equality of the weight of the solid part of the oil liquid collecting part and the weight of the solid part of the oil liquid collecting part is ensured, and the stable posture of the gas lift plunger in the ascending or descending process is further ensured; the lengths of the first swimming ball channel and the second swimming ball channel are respectively 2 times of the length of the first hollow part, so that the equality of the weight of the solid part of the oil collecting part and the weight of the solid part of the oil collecting part is further ensured, the stable posture of the gas lift plunger in the ascending or descending process is further ensured, the self resistance of the gas lift plunger is reduced, and the effect of preventing the gas lift plunger from being blocked in the actual use process is achieved.
In conclusion, the gas lift plunger provided by the invention can effectively improve the descending speed of the plunger and the stability of the descending process, shorten the closing time and improve the production efficiency.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a gas lift plunger according to an embodiment of the present invention.
Fig. 2 is a top view of a gas lift plunger provided by an embodiment of the present invention.
Reference numerals:
the fishing seat comprises a 1-fishing seat end cover, a 2-oil liquid collecting part, a 3-first swimming lane, a 4-second swimming lane, a 5-swimming ball, a 6-gas lifting plunger lower tail part, a 7-first hollow part, an 8-second hollow part, a 9-air hole, a 10-annular bulge, an 11-counterweight base and a 12-through hole.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention. The following examples are illustrative of the invention but are not intended to limit the scope of the invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In describing embodiments of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present invention will be understood in detail by those of ordinary skill in the art.
In embodiments of the invention, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Rather, a first feature "above," "over" and "on" a second feature may be that the first feature is directly above or obliquely above the second feature, or simply that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," 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 embodiments of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Rather, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Referring to fig. 1-2, fig. 1 is a schematic structural diagram of a gas lift plunger according to an embodiment of the present invention; fig. 2 is a top view of a gas lift plunger provided by an embodiment of the present invention.
The gas lift plunger provided by the embodiment of the invention comprises:
the lower tail part 6 of the gas lift plunger is internally provided with a hollow structure, the upper end of the lower tail part 6 of the gas lift plunger is connected with an oil liquid collecting part 2, a swimming ball channel is arranged in the oil liquid collecting part 2, a swimming ball 5 is arranged in the swimming ball channel, the lower end of the lower tail part 6 of the gas lift plunger is connected with a counterweight base 11, and the counterweight base 11 is of a hollow structure;
the top end of the oil liquid collecting part 2 is connected with a salvaging seat end cover 1, through holes 12 are symmetrically and uniformly distributed on the central shaft of the upper surface of the salvaging seat end cover 1, the lower tail part 6 of the gas lift plunger, the oil liquid collecting part 2 and a counterweight base 11 are mutually communicated, and the effect of reducing the descending resistance of the gas lift plunger is achieved;
wherein, the inner diameter of the swimming ball channel is smaller than the inner diameter of the hollow structure of the lower tail part 6 of the gas lift plunger, and the inner diameter of the counterweight base 11 is smaller than the inner diameter of the hollow structure of the lower tail part 6 of the gas lift plunger;
the gas lift plunger goes upward, the traveling ball 5 can sink to the bottom end of the traveling ball channel, the gas lift plunger goes downward, the traveling ball 5 can float to the top end of the traveling ball channel, and gravity position change is generated by the movement of the traveling ball 5 in the traveling ball channel based on the downward traction force of the counterweight base 11, so that the stable posture of the gas lift plunger in the upward or downward direction is ensured.
Specifically, the swimming ball path includes a first swimming ball path 3 and a second swimming ball path 4, the first swimming ball path 3 and the second swimming ball path 4 have the same length, the inner diameter of the first swimming ball path 3 is larger than the inner diameter of the second swimming ball path 4, and the inner diameter of the second swimming ball path 4 is the same as the diameter of the swimming ball.
Specifically, the hollow structure of the lower tail portion 6 of the gas lift plunger includes a first hollow portion 7 and a second hollow portion 8, the inner diameter of the first hollow portion 7 is smaller than the inner diameter of the second hollow portion 8, and the length of the second hollow portion 8 is 12 times the length of the first hollow portion 7.
Specifically, the self-resistance coefficient of the gas lift plunger lower tail 6 is determined based on the volume, weight, and material density of the gas lift plunger lower tail 6, and the inner diameter of the second hollow portion 8 is determined based on the self-resistance coefficient, which is in direct proportional relation to the inner diameter of the second hollow portion 8.
A preferred embodiment uses the following formula to calculate the self-resistance coefficient:
wherein D represents a self-resistance coefficient, V represents a volume, V1 represents a standard volume, W represents a weight, W1 represents a standard weight,indicate density,/->Representing standard densities.
Specifically, the inner diameter of the second hollow portion 8 is 2.5 times the inner diameter of the first hollow portion 7; the inner diameter of the first swimming lane 3 is 2.5 times of the inner diameter of the first hollow part 7, and the inner diameter of the second swimming lane 4 is 2 times of the inner diameter of the first hollow part 7; the length of the first swimming lane 3 and the second swimming lane 4 is 2 times of the length of the first hollow part respectively.
In a preferred scheme, a plurality of groups of air holes 9 are uniformly distributed at the longitudinal position of the lower tail part 6 of the gas lift plunger, and each group of air holes 9 are uniformly distributed in a circumferential direction.
In a preferred scheme, annular protrusions 10 are uniformly arranged on the outer portion of the lower tail portion 6 of the gas lift plunger, and a counterweight base 11 is of a colloid spherical structure and can be detached.
In practical application, the gas lift plunger enters the liquid column of the shaft, the gas lift plunger firstly descends in the gas section of the shaft, then descends in the liquid section, in the descending process, gas or liquid enters the oil liquid collecting part 2 through the lower tail part 6 of the gas lift plunger via the second hollow part 8, under the buoyancy effect, the swimming ball 5 floats to the top end of the first swimming ball channel 3, so that the hollow intercommunication position of the oil liquid collecting part 2 and the lower tail part 6 of the gas lift plunger is opened, and the descending resistance of the gas lift plunger is reduced through the upper and lower spatial communication of the shaft, and the descending effect of the gas lift plunger is accelerated.
The oil is injected into the oil collecting part 2 through the salvaging seat end cover 1, the gas lift plunger ascends, the traveling ball 5 sinks to the bottom end of the second traveling ball channel 4 under the action of gravity and the pressure of the shaft liquid column, the hollow communicating position of the oil collecting part 2 and the lower tail part 6 of the gas lift plunger is blocked, the overflow of the oil injected into the oil collecting part 2 is avoided, and the gas lift plunger efficiently carries liquid upwards in the oil pipe under the pushing of lower gas;
further, the lower gas is injected from the air hole 9 through the second hollow part 8 of the gas lift plunger to push the gas lift plunger to move upwards, and the air flow is injected through the air hole 9 to generate a reaction force, so that the upward efficiency of the plunger is improved.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A gas lift plunger, comprising:
the gas lift plunger lower tail part (6), a hollow structure is arranged in the gas lift plunger lower tail part (6), the upper end of the gas lift plunger lower tail part (6) is connected with an oil liquid collecting part (2), a swimming ball channel is arranged in the oil liquid collecting part (2), a swimming ball (5) is arranged in the swimming ball channel, the lower end of the gas lift plunger lower tail part (6) is connected with a counterweight base (11), and the counterweight base (11) is of a hollow structure;
the top end of the oil liquid collecting part (2) is connected with a salvaging seat end cover (1), through holes (12) are symmetrically and uniformly distributed on the central shaft of the upper surface of the salvaging seat end cover (1), and the lower tail part (6) of the gas lift plunger, the oil liquid collecting part (2) and the counterweight base (11) are communicated with each other;
the inner diameter of the swimming ball channel is smaller than that of the hollow structure of the lower tail part (6) of the gas lift plunger, and the inner diameter of the counterweight base (11) is smaller than that of the hollow structure of the lower tail part (6) of the gas lift plunger.
2. A gas lift plunger according to claim 1, characterized in that the swimming lane comprises a first swimming lane (3) and a second swimming lane (4), the first swimming lane (3) being the same length as the second swimming lane (4), the first swimming lane (3) having an inner diameter larger than the inner diameter of the second swimming lane (4), the second swimming lane (4) having an inner diameter equal to the diameter of the swimming ball.
3. The gas lift plunger according to claim 2, characterized in that the hollow structure of the lower tail (6) of the gas lift plunger comprises a first hollow (7) and a second hollow (8), the first hollow (7) having an inner diameter smaller than the second hollow (8), the second hollow (8) having a length 12 times the length of the first hollow (7).
4. A gas lift plunger according to claim 3, characterized in that the inner diameter of the second hollow (8) is 2.5 times the inner diameter of the first hollow (7).
5. A gas lift plunger according to claim 4, characterized in that the inner diameter of the first swimming lane (3) is 2.5 times the inner diameter of the first hollow (7), and the inner diameter of the second swimming lane (4) is 2 times the inner diameter of the first hollow (7).
6. A gas lift plunger according to claim 5, characterized in that the length of the first and second swimming ball tracks (3, 4) is 2 times the length of the first hollow portion, respectively.
7. The gas lift plunger according to claim 1, wherein a plurality of groups of air holes (9) are uniformly distributed at the longitudinal position of the lower tail part (6) of the gas lift plunger, and each group of air holes (9) are uniformly distributed in a circumferential direction.
8. The gas lift plunger according to claim 1, wherein annular protrusions (10) are uniformly arranged on the outer portion of the lower tail portion (6) of the gas lift plunger, and the counterweight base (11) is of a colloid spherical structure and is detachable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310896626.4A CN116624130B (en) | 2023-07-21 | 2023-07-21 | Gas lift plunger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310896626.4A CN116624130B (en) | 2023-07-21 | 2023-07-21 | Gas lift plunger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116624130A true CN116624130A (en) | 2023-08-22 |
| CN116624130B CN116624130B (en) | 2023-09-22 |
Family
ID=87621561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310896626.4A Active CN116624130B (en) | 2023-07-21 | 2023-07-21 | Gas lift plunger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116624130B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2233472Y (en) * | 1995-05-03 | 1996-08-21 | 辽河石油勘探局茨榆坨采油厂 | Underground oil-pumping air pump for oil pumping well |
| CN2353933Y (en) * | 1998-08-18 | 1999-12-15 | 河南石油勘探局试采公司 | Inner-pipe injection-extraction pump |
| CN205937077U (en) * | 2016-08-03 | 2017-02-08 | 中国石油天然气股份有限公司 | Tubing pump increase device |
| US9683430B1 (en) * | 2016-04-18 | 2017-06-20 | Epic Lift Systems Llc | Gas-lift plunger |
| CN108457601A (en) * | 2018-04-10 | 2018-08-28 | 山东普瑞思德石油技术有限公司 | Gas-lift production one plows completion tubular column and technique |
| US20190277118A1 (en) * | 2018-03-06 | 2019-09-12 | Flowco Production Solutions, LLC | Internal valve plunger |
| CN215927748U (en) * | 2021-08-31 | 2022-03-01 | 中国石油化工股份有限公司 | Valve cover on plunger of oil well pump |
| CN114922580A (en) * | 2022-06-07 | 2022-08-19 | 西南石油大学 | Controllable downhole drilling and completion tool separation device and using method |
-
2023
- 2023-07-21 CN CN202310896626.4A patent/CN116624130B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2233472Y (en) * | 1995-05-03 | 1996-08-21 | 辽河石油勘探局茨榆坨采油厂 | Underground oil-pumping air pump for oil pumping well |
| CN2353933Y (en) * | 1998-08-18 | 1999-12-15 | 河南石油勘探局试采公司 | Inner-pipe injection-extraction pump |
| US9683430B1 (en) * | 2016-04-18 | 2017-06-20 | Epic Lift Systems Llc | Gas-lift plunger |
| CN205937077U (en) * | 2016-08-03 | 2017-02-08 | 中国石油天然气股份有限公司 | Tubing pump increase device |
| US20190277118A1 (en) * | 2018-03-06 | 2019-09-12 | Flowco Production Solutions, LLC | Internal valve plunger |
| CN108457601A (en) * | 2018-04-10 | 2018-08-28 | 山东普瑞思德石油技术有限公司 | Gas-lift production one plows completion tubular column and technique |
| CN215927748U (en) * | 2021-08-31 | 2022-03-01 | 中国石油化工股份有限公司 | Valve cover on plunger of oil well pump |
| CN114922580A (en) * | 2022-06-07 | 2022-08-19 | 西南石油大学 | Controllable downhole drilling and completion tool separation device and using method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116624130B (en) | 2023-09-22 |
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