CN113417607B - Continuous pressure-increasing drainage and production equipment for low-pressure high-yield water well - Google Patents
Continuous pressure-increasing drainage and production equipment for low-pressure high-yield water well Download PDFInfo
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- CN113417607B CN113417607B CN202110893623.6A CN202110893623A CN113417607B CN 113417607 B CN113417607 B CN 113417607B CN 202110893623 A CN202110893623 A CN 202110893623A CN 113417607 B CN113417607 B CN 113417607B
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- buffering
- pressure
- opening sleeve
- lateral wall
- side wall
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The invention discloses continuous pressure-increasing drainage and production equipment for a low-pressure high-yield water well, which comprises an eccentric working cylinder, wherein an opening sleeve is fixedly installed on the side wall of the front end of the eccentric working cylinder, two buffering air inlet pipes are symmetrically installed on the side wall of the opening sleeve relative to the central axis of the opening sleeve, buffering side pipes are fixedly installed on the side walls of the two buffering air inlet pipes, and buffering air outlet pipes are fixedly installed at one ends, far away from the buffering air inlet pipes, of the buffering side pipes. The invention utilizes the cambered surface structure arrangement of the corner to realize the buffer process of the air pressure released at high speed through the opening sleeve end, thereby reducing the air pressure impact damage at the air pressure valve port, and in addition, utilizes the air pressure impact action during air inlet, realizes the reciprocating extrusion action of the liquid outside the air outlet valve while realizing the buffer process of the high-speed air pressure, thereby reducing the phenomenon that the liquid flows back to impact the valve port.
Description
Technical Field
The invention relates to the technical field of pressurization and drainage of high-pressure water wells, in particular to continuous pressurization drainage and production equipment of a low-pressure high-yield water well.
Background
For the recovery of a flooded gas well, the conventional use mode at present adopts a nitrogen vehicle gas lift induced flow, and the lift blow is used as an index for stopping the gas lift, the technical investment is large, and the influence of a gas source and the environmental temperature is large, in order to solve the problems, in the Chongqing area, vehicle-mounted compression equipment which takes well head moisture as a compression medium and fuel gas is gradually developed in recent years, the investment cost is greatly reduced, and the influence of the environmental temperature is small.
Although current gas lift eccentric work barrel has adopted check valve port's design, hit along with the long-term backward flow of water liquid and hit, can have check valve port's weeping phenomenon, in addition, when carrying out gas punching press and discharging, because the stamping speed of valve port department is too fast, the damage circumstances that can have the valve port for a long time gets off, for solving above-mentioned problem, provides the continuous pressurization of low pressure high yield well and arranges and adopts equipment.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides continuous pressure-increasing drainage and production equipment for a low-pressure high-yield water well.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a continuous pressurization drainage and production equipment of high yield water well of low pressure, includes eccentric work barrel, the front end lateral wall fixed mounting of eccentric work barrel has the opening sleeve, two buffering intake pipes are installed about opening sleeve's axis symmetry to opening sleeve's lateral wall, two the lateral wall fixed mounting of buffering intake pipe has buffering side tube, buffering side tube is kept away from the one end fixed mounting of buffering intake pipe has buffering outlet duct, the other end lateral wall and the opening sleeve's lateral wall of buffering outlet duct carry out fixed connection, opening sleeve's front end lateral wall fixed mounting has the air outlet valve, the inside wall fixed mounting of buffering side tube has two connecting rods, two the connecting rod is kept away from opening sleeve's one end lateral wall fixed mounting has the spacing ring, the inside sliding connection of spacing ring has drive pole, two fixed mounting has drive frame between the drive pole, the inside wall sliding connection of drive frame has the rotation wheel, the lateral wall of rotation wheel about two dwangs are installed to the axis symmetry of rotation wheel, two the other end lateral wall fixed mounting of dwang has the atmospheric pressure impeller, keeps away from the lateral wall fixed mounting of the drive pole of eccentric work barrel one end has the extrusion piece.
Preferably, the connecting corner of the buffering air inlet pipe and the buffering side pipe is arranged in an arc surface structure, and the connecting corner of the buffering side pipe and the buffering air outlet pipe is arranged in an arc surface structure.
Preferably, two the dwang runs through the lateral wall of atmospheric pressure impeller carries out fixed connection with the inside of buffering side pipe, two can not take place the separation when sliding between drive rod and the spacing ring.
Preferably, the cross section of the rotating wheel is arranged in a triangular structure, and the corner end of the rotating wheel is arranged in an arc surface.
Preferably, a rubber ring is arranged at a connecting port end of the buffer side pipe and the extrusion block, and the inner side wall of the rubber ring is in sliding connection with the extrusion block.
Preferably, when the extrusion block moves, the side wall of the extrusion block cannot be separated from the side wall of the rubber ring.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, through the structural arrangement among the open sleeve, the buffering air inlet pipe, the buffering side pipe and the buffering air outlet pipe and the arrangement of the cambered surface structure of the corner, the buffering process of air pressure released at high speed through the open sleeve is realized, so that the air pressure impact damage at the air pressure valve port is reduced.
2. The invention utilizes the air pressure impact effect during air inlet through the matching effect of the connecting rod, the driving frame, the rotating wheel, the air pressure impeller and the extrusion block, realizes the reciprocating extrusion effect on the liquid outside the air outlet valve while realizing the buffer process of high-speed air pressure, thereby reducing the phenomenon that the liquid flows back to impact the valve port.
Drawings
FIG. 1 is a schematic view of the overall structure of an eccentric working barrel of the continuous pressure-increasing drainage and production equipment for a low-pressure high-yield well, which is provided by the invention;
FIG. 2 is a schematic structural view of an opening sleeve of the continuous pressure-increasing drainage and production equipment for a low-pressure high-yield water well, which is provided by the invention;
FIG. 3 is a schematic view of the internal structure of the buffering side pipe of the continuous pressure-increasing drainage and production equipment for a low-pressure high-yield water well, which is provided by the invention;
fig. 4 is a schematic structural view of a rotating wheel of the continuous pressure increasing drainage and production equipment for the low-pressure high-yield water well.
In the figure: 1 eccentric work cylinder, 2 opening sleeves, 3 buffer air inlet pipes, 4 buffer side pipes, 5 buffer air outlet pipes, 6 air outlet valves, 7 connecting rods, 8 limiting rings, 9 driving rods, 10 driving frames, 11 rotating wheels, 12 rotating rods, 13 air pressure impellers and 14 extrusion blocks.
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.
Referring to fig. 1-4, a continuous pressure-increasing drainage and production equipment for a low-pressure high-yield water well comprises an eccentric working cylinder 1, an opening sleeve 2 is fixedly installed on the side wall of the front end of the eccentric working cylinder 1, two buffer air inlet pipes 3 are symmetrically installed on the side wall of the opening sleeve 2 about the central axis of the opening sleeve 2, buffer side pipes 4 are fixedly installed on the side walls of the two buffer air inlet pipes 3, a buffer air outlet pipe 5 is fixedly installed at one end, away from the buffer air inlet pipe 3, of each buffer side pipe 4, the side wall of the other end of the buffer air outlet pipe 5 is fixedly connected with the side wall of the opening sleeve 2, an air outlet valve 6 is fixedly installed on the side wall of the front end of the opening sleeve 2, two connecting rods 7 are fixedly installed on the inner side wall of each buffer side pipe 4, a limiting ring 8 is fixedly installed on the side wall of one end, away from the opening sleeve 2, a driving rod 9 is slidably connected inside the limiting ring 8, a driving frame 10 is fixedly installed between the two driving rods 9, a rotating wheel 11 is slidably connected on the inner side wall of the driving frame 10, two rotating wheels 12 are symmetrically installed about the central axis of the rotating wheel 11, an air pressure impeller 13 is fixedly installed on the side wall of the other end of the two rotating wheel 12, and an extrusion block 14 is fixedly installed on the side wall of one end of the driving rod 9, which is away from one end of the eccentric working cylinder 1.
The connecting corner of the buffering air inlet pipe 3 and the buffering side pipe 4 is arranged in a cambered surface structure, and the connecting corner of the buffering side pipe 4 and the buffering air outlet pipe 5 is arranged in a cambered surface structure.
Two dwang 12 run through the lateral wall of atmospheric pressure impeller 13 and carry out fixed connection with the inside of buffering side pipe 4, can not take place the separation when sliding between two kellies 9 and the spacing ring 8.
The cross section of the rotating wheel 11 is arranged in a triangular structure, and the corner end of the rotating wheel 11 is arranged in a cambered surface.
The connection port end of the buffer side pipe 4 and the extrusion block 14 is provided with a rubber ring, and the inner side wall of the rubber ring is in sliding connection with the extrusion block 14.
When the extrusion block 14 moves, the side wall of the extrusion block 14 cannot be separated from the side wall of the rubber ring.
In operation, the present device proposes a technical approach:
a continuous pressurization drainage and production technology of a low-pressure high-yield water well is a continuous pressurization drainage and production technology of the gas well, which is formulated by researching the flow state of two-phase flow in a near well zone, combining the research of the starting pressure of the gas well, the research of the production phenomenon after lifting and the like, and is suitable for the low-pressure high-yield water well, the technology takes the reconstruction of a gas production channel as a technical target, abandons the mode of stopping gas lifting immediately after the prior shaft lifting and channeling, but continues gas lifting after the gas well lifting and channeling, observes the gas production rate of produced water, strictly tracks the change of the gas-water ratio of the gas well, stops gas lifting when the gas-water ratio of the gas well reaches 3 sides/ten thousand sides, or the gas well can continuously produce depending on the self energy after the gas-water ratio is reduced, and the core of the technology is that the continuous pressurization gas lifting technology is utilized, accumulated liquid in the near well zone can be discharged as much as possible, the gas well channel is reconstructed, the natural gas can reach the shaft, the technology can discharge the accumulated liquid in the shaft to the maximum extent and can reduce the backpressure generated by the accumulated liquid in the shaft, ensure that the hole of a stratum part can be smoothly started, discharge the accumulated liquid in cracks or the gas well, and can be produced, thereby achieving the purpose of reconstructing the gas production channel and ensuring the gas well can continuously;
for example, nitrogen gas lift is adopted for 3 times, gas lift is stopped after lift channeling, foam drainage production is matched, the average production cycle is about 7 days after lift, water flooding is performed again, the cumulative yield is increased by 42 ten thousand squares, the input-output ratio is 1.6, after a continuous pressurization gas lift technology is adopted, the water-gas ratio reaches 3 squares/ten thousand squares and serves as a gas lift stopping index, the well is subjected to continuous pressurization gas lift operation for 17 days, after continuous production is performed for 60 days after gas lift stopping, water flooding is performed after a gas well stops foam drainage due to high output pipe pressure, the cumulative yield is increased by 155 thousand, the input-output ratio is 1.
The specific working principle of the invention is as follows:
before the work begins, the eccentric working barrel is placed into a development well, when gas lift construction begins, the air pressure valve is opened, released gas enters the development well, and partial air flow is divided into the buffer side tube 4 when the gas enters the opening sleeve 2 due to the fact that the corner between the buffer air inlet tube 3 and the buffer side tube 4 is arranged in a cambered surface structure and the corner between the buffer side tube 4 and the buffer air outlet tube 5 is arranged in a cambered surface structure, so that the function of air pressure buffering is achieved through the structural arrangement;
in the process, the buffer process of the air pressure released at high speed through the opening sleeve 2 is realized by the structural arrangement among the opening sleeve 2, the buffer air inlet pipe 3, the buffer side pipe 4 and the buffer air outlet pipe 5 and by utilizing the arrangement of the cambered surface structure of the corner, so that the air pressure impact damage at the air pressure valve port is reduced.
Further, when air pressure enters the interior of the buffer side tube 4, at the moment, the rotating rod 12 penetrates through the air pressure impeller 13 to be fixedly connected with the side wall of the buffer side tube 4, the air pressure impeller 13 starts to rotate under the action of the air pressure, so that the rotating wheel 11 is driven to rotate, at the moment, the limiting ring 8 is in sliding connection with the driving rod 9, the cross section of the rotating wheel 11 is in a triangular arrangement, in a sliding path between the rotating wheel 11 and the driving frame 10, the driving frame 10 starts to perform transverse reciprocating motion along with the rotation of the rotating wheel 11, at the moment, the extrusion blocks 14 perform reciprocating motion simultaneously, as the rubber rings are arranged between the extrusion blocks 14 and the buffer side tube 4, and meanwhile, the extrusion blocks 14 are in sliding connection with the rubber rings and are not separated, the process of pressing down on liquid outside the air outlet valve 6 in advance can be realized when the air pressure buffer process is performed, so that when the air comes out from the opening of the air outlet valve 6, the phenomenon of liquid backflow impact can be reduced;
in the process, the invention utilizes the air pressure impact effect during air inlet through the matching effect of the connecting rod 7, the driving frame 10, the rotating wheel 11, the air pressure impeller 13 and the extrusion block 14, realizes the reciprocating extrusion effect on the liquid outside the air outlet valve 6 while realizing the buffer process of high-speed air pressure, and further reduces the phenomenon that the liquid reflows to impact the valve port.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (4)
1. The utility model provides a continuous pressurization drainage and production equipment of low pressure high yield well, includes eccentric work barrel (1), its characterized in that, the front end lateral wall fixed mounting of eccentric work barrel (1) has opening sleeve (2), two buffering intake pipe (3) are installed about the axis symmetry of opening sleeve (2) to the lateral wall of opening sleeve (2), two the lateral wall fixed mounting of buffering intake pipe (3) has buffering lateral tube (4), buffering lateral tube (4) are kept away from the one end fixed mounting of buffering intake pipe (3) has buffering outlet duct (5), the other end lateral wall of buffering outlet duct (5) carries out fixed connection with the lateral wall of opening sleeve (2), the front end lateral wall fixed mounting of opening sleeve (2) has outlet valve (6), the inside wall fixed mounting of buffering lateral tube (4) has two connecting rods (7), two the one end lateral wall fixed mounting that opening sleeve (2) was kept away from to connecting rod (7) has spacing ring (8), the internal connection of spacing ring (8) has drive pole (9), two the fixed mounting has drive frame (10) between drive the axis, the rotation frame (10) the lateral wall of rotation wheel (11) is connected with the lateral wall (11) symmetry, the side wall of the other end of each of the two rotating rods (12) is fixedly provided with an air pressure impeller (13), the side wall of the driving rod (9) far away from one end of the eccentric working cylinder body (1) is fixedly provided with an extrusion block (14), the cross section of the rotating wheel (11) is arranged in a triangular structure, and the corner end of the rotating wheel (11) is arranged in a cambered surface manner; the rubber ring is arranged at the connecting port end of the buffering side pipe (4) and the extrusion block (14), and the inner side wall of the rubber ring is in sliding connection with the extrusion block (14).
2. The continuous pressure increasing and drainage and production equipment for the low-pressure high-yield water well is characterized in that the connecting corner of the buffering air inlet pipe (3) and the buffering side pipe (4) is arranged in an arc surface structure, and the connecting corner of the buffering side pipe (4) and the buffering air outlet pipe (5) is arranged in an arc surface structure.
3. The continuous pressure-increasing drainage and production equipment for the low-pressure high-yield water well is characterized in that the two rotating rods (12) penetrate through the side wall of the air pressure impeller (13) and are fixedly connected with the inside of the buffering side pipe (4), and the two driving rods (9) and the limiting ring (8) cannot be separated when sliding.
4. The continuous pressure-increasing drainage and production equipment for the low-pressure high-yield water well is characterized in that the side wall of the extrusion block (14) is not separated from the side wall of the rubber ring when the extrusion block (14) moves.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110893623.6A CN113417607B (en) | 2021-08-05 | 2021-08-05 | Continuous pressure-increasing drainage and production equipment for low-pressure high-yield water well |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110893623.6A CN113417607B (en) | 2021-08-05 | 2021-08-05 | Continuous pressure-increasing drainage and production equipment for low-pressure high-yield water well |
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| CN113417607A CN113417607A (en) | 2021-09-21 |
| CN113417607B true CN113417607B (en) | 2023-02-21 |
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