CN114909113B - Movable water-gas alternate gas injection device for shale oil exploitation - Google Patents
Movable water-gas alternate gas injection device for shale oil exploitation Download PDFInfo
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- CN114909113B CN114909113B CN202210642094.7A CN202210642094A CN114909113B CN 114909113 B CN114909113 B CN 114909113B CN 202210642094 A CN202210642094 A CN 202210642094A CN 114909113 B CN114909113 B CN 114909113B
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- 238000002347 injection Methods 0.000 title claims abstract description 138
- 239000007924 injection Substances 0.000 title claims abstract description 138
- 239000003079 shale oil Substances 0.000 title claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 61
- 238000003860 storage Methods 0.000 claims abstract description 57
- 238000003756 stirring Methods 0.000 claims abstract description 43
- 238000002156 mixing Methods 0.000 claims abstract description 42
- 239000007789 gas Substances 0.000 claims description 188
- 230000008878 coupling Effects 0.000 claims description 81
- 238000010168 coupling process Methods 0.000 claims description 81
- 238000005859 coupling reaction Methods 0.000 claims description 81
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 54
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 32
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 27
- 239000001569 carbon dioxide Substances 0.000 claims description 27
- 230000005540 biological transmission Effects 0.000 claims description 26
- 238000009826 distribution Methods 0.000 claims description 21
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 20
- 238000000605 extraction Methods 0.000 claims description 15
- 230000000087 stabilizing effect Effects 0.000 claims description 15
- 230000002457 bidirectional effect Effects 0.000 claims description 13
- 230000001105 regulatory effect Effects 0.000 claims description 13
- 210000003437 trachea Anatomy 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 8
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 19
- 239000000203 mixture Substances 0.000 description 7
- 238000011084 recovery Methods 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 239000003208 petroleum Substances 0.000 description 6
- 238000000746 purification Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 239000008246 gaseous mixture Substances 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 230000002860 competitive effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- BWGNESOTFCXPMA-UHFFFAOYSA-N Dihydrogen disulfide Chemical compound SS BWGNESOTFCXPMA-UHFFFAOYSA-N 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 125000001741 organic sulfur group Chemical group 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- GVIJJXMXTUZIOD-UHFFFAOYSA-N thianthrene Chemical compound C1=CC=C2SC3=CC=CC=C3SC2=C1 GVIJJXMXTUZIOD-UHFFFAOYSA-N 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 150000003573 thiols Chemical class 0.000 description 1
- 229930192474 thiophene Natural products 0.000 description 1
- 150000003577 thiophenes Chemical class 0.000 description 1
- 229930195735 unsaturated hydrocarbon Natural products 0.000 description 1
Classifications
-
- 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
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/166—Injecting a gaseous medium; Injecting a gaseous medium and a liquid medium
-
- 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
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/70—Combining sequestration of CO2 and exploitation of hydrocarbons by injecting CO2 or carbonated water in oil wells
Abstract
The application discloses a movable water-gas alternating gas injection device for shale oil exploitation, which comprises a gas injection structure, wherein the gas injection structure comprises a support plate, the top of the support plate is fixedly connected with a water storage tank, one side of the support plate is fixedly connected with the water storage tank, the outlet end of a water injection pump is fixedly connected with a water injection pipe, one end of the water injection pipe is fixedly connected with a fixed pipe, the other end of the fixed pipe is fixedly connected with a bent pipe, one end of the bent pipe is fixedly connected with an alternating gas pipe for shale oil exploitation, one end of the fixed pipe, which is far away from the bent pipe, is fixedly connected with a gas injection pipe, one end of the gas injection pipe is fixedly connected with the outlet end of the gas injection pump, the water injection pump and the gas injection pump are fixedly connected with the top of the support plate, the inlet end of the gas injection pump is fixedly connected with a gas mixing shell, and a stirring assembly is arranged at the inner cavity of the gas mixing shell. The application has the advantages that: the movable water-gas alternating gas injection device for shale oil exploitation is convenient to mix, adjust, move and support stably.
Description
Technical Field
The application relates to a gas injection device, in particular to a movable water-gas alternating gas injection device for shale oil exploitation.
Background
Shale oil refers to petroleum resources contained in shale layers mainly comprising shale, wherein the petroleum resources comprise petroleum in shale pores and cracks, and also comprise petroleum resources in adjacent layers and interlayers of tight carbonates or clastic rocks in the shale layers, oil kerogen in the shale can be converted into synthetic crude oil through cracking chemical changes, the shale oil is extremely high in unsaturated hydrocarbon content in the shale oil unlike natural petroleum, the shale oil is extremely high in non-hydrocarbon compound content unlike conventional petroleum separated from source storage and near-source aggregated compact oil, the shale oil has obvious characteristics in the aspects of aggregation mechanism, storage space, fluid characteristics, distribution characteristics and the like, the shale oil is more similar to shale gas, rich alkane and alkene in the shale oil can produce related high-added-value chemicals, shale oil sulfides mainly comprise organic sulfur and disulfide such as hydrogen sulfide, thiols, thiophenes, thianthrene and the like, the resources of sulfur are wide and low in cost, and the purposes of sulfur and sulfide on industry, agriculture, dyeing and synthetic materials are extremely multiple, and the purposes of sulfur are mainly used for preparing acids.
In the shale oil extraction process, the mode of alternate injection of water and gas can be adopted for extraction, the alternate injection of water and gas is an air injection scheme widely applied to oil field operation, the flow ratio between an injection agent and oil is reduced, and the demand of natural gas is reduced, so that the economic benefit is effectively improved, the recovery ratio of the oil field is improved, but the existing alternate injection device of water and gas generally injects single gas, the single gas needs to be purified before injection, the single gas influences the oil extraction effect, and the extraction of shale oil is inconvenient.
Disclosure of Invention
In order to solve the defects in the prior art, the gas injection structure is utilized to inject mixed gas into the shale oil reservoir, and the gas and water are alternately injected for oil extraction, so that the problem of lower shale oil recovery ratio is solved, the mixed gas injected into the shale oil reservoir can exert the competitive adsorption capacity of carbon dioxide and the permeation enhancing effect of nitrogen, the mixed gas purification concentration requirement is low or purification is not needed, the gas source cost and the total cost of the mixed gas for displacing the coal bed gas are greatly reduced, and meanwhile, the gas and water alternately injection mode is adopted to effectively improve the recovery ratio of the shale oil.
More in order to solve the problem among the prior art, utilize adjusting structure can adjust the horizontal and vertical position of alternate trachea, solved the gas injection device and be difficult to adjust, the less problem of application scope, be convenient for according to the position installation alternate trachea of oil recovery gas injection tubular column, improve gas injection device's application scope, increase gas injection device's practicality.
Further in order to solve the problem among the prior art, utilize the location that the gas injection device can be convenient for be adjusted to the movable structure, can make the gas injection device more stable when using simultaneously, solved the gas injection device and be difficult to remove and support the unstable problem inadequately, be convenient for the oil recovery to shale oil, the use of gas injection device of being convenient for.
The utility model provides a portable aqueous vapor alternative gas injection device for shale oil exploitation, includes the gas injection structure, the gas injection structure includes backup pad, storage water tank, water injection pump, water injection pipe, fixed pipe, return bend, alternative trachea, gas injection pipe, gas injection pump, gas mixture casing, nitrogen gas storage box, carbon dioxide gas storage box, agitator motor and (mixing) shaft, backup pad top rigid coupling storage water tank, backup pad one side rigid coupling storage water tank, the exit end rigid coupling water injection pipe of water injection pump, water injection pipe one end rigid coupling fixed pipe, the return bend other end rigid coupling return bend, return bend one end rigid coupling has the alternative trachea that is used for shale oil exploitation, the one end rigid coupling gas injection pipe of return bend is kept away from to the fixed pipe, gas injection pipe one end rigid coupling is in the exit end of gas injection pump, water injection pump and gas injection pump all rigid coupling are in the backup pad top, gas mixture casing inlet end and gas mixture casing rigid coupling, gas mixture casing inner chamber department is provided with the stirring subassembly, gas mixture casing one side is provided with nitrogen gas storage box and carbon dioxide gas storage box, just gas mixture casing and carbon dioxide gas storage box rigid coupling are all in backup pad top gas storage box and carbon dioxide gas storage box, all join in the top of the gas storage box and all have the top to add the subassembly.
Further, stirring subassembly includes agitator motor, (mixing) shaft and stirring leaf, agitator motor rigid coupling is in gas mixing casing top, agitator motor's output rigid coupling (mixing) shaft, (mixing) shaft surface rigid coupling stirring leaf, just the rotation hole has been seted up to gas mixing casing top surface, the (mixing) shaft bottom runs through the rotation hole and extends to gas mixing casing inner chamber department, the (mixing) shaft surface rigid coupling has a plurality of stirring leaf.
Further, add the subassembly and include installation casing, add motor, main gear, drive wheelset, drive chain, main sprocket, rotation pipe, center tube, side tube, connecting pipe and add the pump, installation casing rigid coupling is in gaseous mixing shell top surface, installation casing inner chamber department is provided with and adds the motor, add the motor rigid coupling in gaseous mixing shell top surface, the output rigid coupling main gear of adding the motor, main gear side meshing is connected with drive wheelset, drive wheelset side meshing is connected with drive chain, drive chain meshing is connected in main sprocket side, drive wheelset and main sprocket respectively with the rotation pipe rigid coupling, rotation pipe bottom end center tube, center tube side rigid coupling side tube, two rotation pipe top all rotates and is connected with the connecting pipe, and two connecting pipe one end rigid coupling respectively in the exit end of joining the pump, and two the exit end is rigid coupling respectively in nitrogen gas storage box and carbon dioxide gas storage box top.
Further, the pump is added to equal rigid coupling in gaseous mixture shell and nitrogen gas storage box top, the drive pulley group includes pinion and pinion, the pinion is connected with the main gear meshing, pinion and drive chain meshing are connected, the fixed orifices has all been seted up to drive pulley group and main chain, two symmetric distribution's first mounting hole has been seted up to gaseous mixture shell top surface, two symmetric distribution's second mounting hole has been seted up to installation shell top surface, the rotor tube top runs through fixed orifices and second mounting hole and extends to installation shell top, the rotor tube bottom runs through first mounting hole and extends to gaseous mixture shell below, the side rigid coupling of center tube side has a plurality of to be annular array distribution's side tube, a plurality of evenly distributed's inlet hole has all been seted up to rotor tube, center tube and side tube.
Further, including adjusting structure, adjusting structure includes supporting casing, spacing post, regulating plate, first one-way screw thread post, spliced pole, fixed casing, accommodate motor, second one-way screw thread post, movable plate, reference column, connecting plate and mounting panel, the supporting casing rigid coupling is in the backup pad top, supporting casing inner chamber bottom rigid coupling spacing post, spacing post surface sliding connection regulating plate, regulating plate and first one-way screw thread post surface threaded connection, first one-way screw thread post bottom is connected with drive assembly, regulating plate one side rigid coupling spliced pole, spliced pole one end rigid coupling fixed casing, fixed casing inner chamber lateral wall rigid coupling accommodate motor, accommodate motor's output rigid coupling second one-way screw thread post, second one-way screw thread post surface threaded connection has the movable plate, movable plate sliding connection is in the reference column surface, the reference column rigid coupling is in fixed casing inner chamber lateral wall, movable plate top rigid coupling connecting plate, mounting panel top and fixed tube bottom rigid coupling.
Further, the drive assembly includes connection casing, driving motor, drive sprocket and connection chain, connection casing rigid coupling is in the backup pad bottom, connection casing inner chamber department is provided with two symmetrically distributed's drive sprocket, two drive sprocket passes through the connection chain transmission and connects, drive sprocket side is connected with the connection chain meshing, two drive sprocket top all rigid coupling has first one-way screw thread post, and one of them drive sprocket rigid coupling is in driving motor's output, driving motor rigid coupling is in connection casing inner chamber bottom, two symmetrically distributed's preset hole has been seted up to the backup pad, preset hole and rigid coupling are run through at first one-way screw thread post top in support casing inner chamber top.
Further, the supporting plate top rigid coupling has two symmetric distribution's supporting shell, two the regulation mouth has all been seted up to supporting shell's opposite one side, regulating plate one side rigid coupling has two symmetric distribution's spliced pole, spliced pole one end runs through the regulation mouth and extends to the supporting shell outside, supporting shell inner chamber bottom rigid coupling has two symmetric distribution's spacing post, two symmetric distribution's spacing hole has been seted up to the regulating plate, spacing post top runs through spacing hole and rigid coupling in supporting shell inner chamber top.
Further, two symmetrically distributed positioning columns are fixedly connected to the side wall of the inner cavity of the fixed shell, two symmetrically distributed positioning holes are formed in the movable plate, one end of each positioning column penetrates through each positioning hole and is fixedly connected to the side wall of the inner cavity of the fixed shell, two symmetrically distributed connecting plates are fixedly connected to the top of the movable plate, two symmetrically distributed connecting ports are formed in the top surface of the fixed shell, and the top ends of the connecting plates penetrate through the connecting ports and extend to the upper portion of the fixed shell.
Further, including the moving structure, the moving structure is including supporting slip wheelset, stable casing, fixed column, sliding plate, two-way screw thread post, adjusting column, mounting bracket, lifter plate, lifter post and antiskid stabilizer plate, the equal rigid coupling in backup pad bottom four corners department has the support slip wheelset, backup pad bottom rigid coupling has stable casing, stable casing inner chamber lateral wall rigid coupling fixed column, fixed column surface sliding connection has the sliding plate, sliding plate and two-way screw thread post surface threaded connection, two-way screw thread post one end is connected with power component, the sliding plate below is provided with the adjusting column, the adjusting column both ends all rotate and are connected with the mounting bracket, are located the top the mounting bracket rigid coupling is in the sliding plate bottom, be located the below the mounting bracket rigid coupling is in the lifter plate top, lifter plate bottom rigid coupling lifter plate, lifter plate bottom rigid coupling antiskid stabilizer plate.
Further, power pack includes power casing, power motor, power sprocket and power chain, power casing rigid coupling is in stable casing one side, power casing inner chamber department is provided with two symmetrical distribution's power sprocket, two power sprocket passes through the power chain transmission and connects, power sprocket and power chain meshing are connected, one of them power sprocket rigid coupling is in power motor's output, power motor rigid coupling is in power casing inner wall, two power sprocket one side all rigid coupling has two-way screw thread post, two symmetrical distribution's supporting hole has been seted up to one side that the stable casing is close to the power casing, two-way screw thread post one end is connected with stable casing inner chamber lateral wall rotation, the supporting hole is run through to the other end of two-way screw thread post and is extended to power casing inner chamber department, the mounting bracket includes center post and curb plate, the equal rigid coupling in center post both ends has the curb plate, center post surface and adjusting column rotate and are connected, lifter plate bottom rigid coupling has four lifting columns that are rectangular structure and distribute.
The application has the advantages that: the movable water-gas alternating gas injection device for shale oil exploitation is convenient to mix, adjust, move and support stably.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the application, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic perspective view of a mobile alternative water-gas injection device for shale oil exploitation according to an embodiment of the application;
FIG. 2 is a schematic plan view of the gas injection apparatus in the embodiment shown in FIG. 1;
FIG. 3 is a schematic diagram of the positional relationship between the motor, main gear, drive pulley set, drive sprocket, main sprocket and rotating tube incorporated in the embodiment of FIG. 1;
FIG. 4 is a schematic view showing the positional relationship among the rotary pipe, the center pipe and the side pipes in the embodiment shown in FIG. 1;
FIG. 5 is a schematic view of the positional relationship among the water storage tank, the gas alleviation housing, the water injection pump, the water injection pipe, the gas injection pump and the gas injection pipe in the embodiment shown in FIG. 1;
FIG. 6 is a schematic view of the positional relationship among the drive motor, drive sprocket, connecting chain and first one-way threaded post of the embodiment of FIG. 1;
FIG. 7 is a schematic view of the positional relationship among the first one-way threaded post, the adjusting plate, the spacing post and the connecting post in the embodiment shown in FIG. 1;
FIG. 8 is a schematic view of the positional relationship among the adjustment motor, the second one-way threaded post, the moving plate, the positioning post and the connecting plate in the embodiment shown in FIG. 1;
FIG. 9 is a schematic diagram of the positional relationship among the power motor, power sprocket, power chain, bi-directional threaded post, sliding plate and fixed post of the embodiment of FIG. 1;
fig. 10 is a schematic view of the explosive structure of the positional relationship between the adjusting post and the mounting bracket in the embodiment shown in fig. 1.
Meaning of reference numerals in the drawings: 1. a support plate; 2. a water storage tank body; 3. a water injection pump; 4. a water injection pipe; 5. a fixed tube; 6. bending the pipe; 7. alternating air pipes; 8. an air injection pipe; 9. a gas injection pump; 10. a gas mixing housing; 11. a nitrogen storage tank body; 12. a carbon dioxide storage tank; 13. a stirring motor; 14. a stirring shaft; 15. stirring pages; 16. a mounting shell; 17. adding a motor; 18. a main gear; 19. a transmission wheel set; 20. a drive chain; 21. a main sprocket; 22. a rotary tube; 23. a central tube; 24. a side pipe; 25. a connecting pipe; 26. adding a pump; 27. a support housing; 28. a limit column; 29. an adjusting plate; 30. a first unidirectional threaded post; 31. a connecting column; 32. a fixed housing; 33. adjusting a motor; 34. a second unidirectional threaded post; 35. a moving plate; 36. positioning columns; 37. a connecting plate; 38. a mounting plate; 39. a connection housing; 40. a driving motor; 41. a drive sprocket; 42. a connecting chain; 43. supporting a sliding wheel set; 44. a stabilizing housing; 45. fixing the column; 46. a sliding plate; 47. a bidirectional threaded column; 48. an adjusting column; 49. a mounting frame; 50. a lifting plate; 51. lifting columns; 52. an anti-slip stabilizing plate; 53. a power housing; 54. a power motor; 55. a power sprocket; 56. and (5) a power chain.
Detailed Description
In order to make the application object, feature and advantage of the present application more obvious and understandable, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the embodiments described below are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The technical scheme of the application is further described below by the specific embodiments with reference to the accompanying drawings.
In the description of the present application, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.
Referring to fig. 1, fig. 2 and fig. 5, a mobile water-gas alternative gas injection device for shale oil exploitation comprises a gas injection structure, the gas injection structure comprises a supporting plate 1, a water storage tank 2, a water injection pump 3, a water injection pipe 4, a fixed pipe 5, a bent pipe 6, an alternative gas pipe 7, a gas injection pipe 8, a gas injection pump 9, a gas mixing shell 10, a nitrogen gas storage box 11, a carbon dioxide gas storage box 12, a stirring motor 13 and a stirring shaft 14, the top of the supporting plate 1 is fixedly connected with the water storage tank 2, one side of the supporting plate 1 is fixedly connected with the water storage tank 2, the outlet end of the water injection pump 3 is fixedly connected with the water injection pipe 4, one end of the water injection pipe 4 is fixedly connected with the fixed pipe 5, the other end of the fixed pipe 5 is fixedly connected with the bent pipe 6, one end of the fixed pipe 5 is fixedly connected with the gas injection pipe 8, one end of the gas injection pipe 8 is fixedly connected with the outlet end of the gas injection pump 9, the water injection pump 3 and the gas injection pump 9 are fixedly connected with the top of the supporting plate 1, the inlet end of the gas injection pump 9 is fixedly connected with the gas mixing shell 10, a stirring assembly is arranged at the inner cavity of the gas mixing shell 10, one side of the gas mixing shell 10 is provided with the stirring assembly, one side of the nitrogen gas mixing shell 10 is fixedly connected with the nitrogen gas storage box 11 and the carbon dioxide gas storage box 12 and the carbon dioxide gas storage box 11 are fixedly connected with the top of the carbon dioxide gas storage box 11, the nitrogen gas storage box 11 and the nitrogen gas storage box 11 is fixedly connected with the top of the carbon dioxide gas storage box 11, the nitrogen gas storage box 11 is fixedly connected with the top of the carbon dioxide gas storage box 11.
Through the technical scheme, the mixed gas can be injected into the shale oil reservoir by utilizing the gas injection structure, and the mixed gas can be injected into the fixed pipe 5 by utilizing the water injection pump 3 and the water injection pipe 4 for oil extraction, and the mixed gas can be injected into the oil extraction gas injection pipe, so that the competitive adsorption capacity of carbon dioxide can be exerted, the permeation effect of nitrogen can be exerted, the mixed gas purification concentration is low or purification is not needed, the gas source cost and the total cost of the mixed gas for displacing coal bed gas are greatly reduced, meanwhile, the recovery ratio of shale oil can be effectively improved by adopting a mode of water-gas alternate injection, when the mixed gas injection device is used, the alternate gas pipe 7 is connected with an oil extraction gas injection pipe column, then the water injection pump 3 and the water injection pipe 4 are used for injecting water into the fixed pipe 5, so that the water injection pipe 6 and the alternate gas injection pipe 7 are used for oil extraction gas injection into the oil extraction gas pipe, the injection gas can be injected into the shale oil injection pipe 5 by utilizing the gas injection pump 9 and the gas injection pipe 8, the gas injection into the oil extraction gas injection pipe 7 is further used for injecting gas into the oil extraction gas injection pipe, the gas can be injected into the oil extraction gas and the coal bed, and the total cost of the mixed gas can be reduced, the gas can be purified, and the total cost of the mixed gas can be conveniently purified, and the mixed gas can not be purified, and the cost of the mixed gas can be conveniently and the gas can be purified by utilizing the gas injection box 11 and the gas can be conveniently used for the carbon dioxide injection box, and the total cost of the gas can not exert the total cost of the carbon gas.
As a further optimization scheme, as shown in FIG. 2, the stirring assembly comprises a stirring motor 13, a stirring shaft 14 and a stirring blade 15, wherein the stirring motor 13 is fixedly connected to the top of the gas mixing shell 10, the output end of the stirring motor 13 is fixedly connected with the stirring shaft 14, the stirring blade 15 is fixedly connected to the surface of the stirring shaft 14, a rotating hole is formed in the top surface of the gas mixing shell 10, the bottom end of the stirring shaft 14 penetrates through the rotating hole and extends to the inner cavity of the gas mixing shell 10, a plurality of stirring blades 15 are fixedly connected to the surface of the stirring shaft 14, and the stirring motor 13 drives the stirring shaft 14 to rotate when in use, so that the stirring blade 15 is driven to rotate, the stirring blade 15 can stir and mix carbon dioxide and nitrogen in the gas mixing shell 10, the mixing efficiency of mixed gas is improved, and the mixed gas is convenient to use.
As a further optimized scheme, as shown in fig. 3 and 4, the adding assembly comprises a mounting shell 16, an adding motor 17, a main gear 18, a transmission wheel set 19, a transmission chain 20, a main chain wheel 21, a rotating tube 22, a central tube 23, side tubes 24, a connecting tube 25 and an adding pump 26, wherein the mounting shell 16 is fixedly connected with the top surface of the gas mixing shell 10, the adding motor 17 is arranged at the inner cavity of the mounting shell 16, the adding motor 17 is fixedly connected with the top surface of the gas mixing shell 10, the output end of the adding motor 17 is fixedly connected with the main gear 18, the side surface of the main gear 18 is in meshed connection with the transmission wheel set 19, the side surface of the transmission wheel set 19 is in meshed connection with the transmission chain 20, the transmission chain 20 is in meshed connection with the side surface of the main chain wheel 21, the transmission wheel set 19 and the main chain wheel set 21 are respectively fixedly connected with the rotating tube 22, the bottom end of the rotating tube 22 is fixedly connected with the central tube 23, the side tube 24 is fixedly connected with the side tubes 23, the top ends of the two rotating tubes 22 are respectively in rotary connection with the connecting tube 25, and two connecting pipes 25 are respectively and fixedly connected with the outlet ends of the adding pump 26, and the two outlet ends are respectively and fixedly connected with the tops of the nitrogen gas storage tank 11 and the carbon dioxide gas storage tank 12, when in use, the adding pump 26 and the connecting pipes 25 at two sides can respectively introduce the nitrogen gas and the carbon dioxide gas in the nitrogen gas storage tank 11 and the carbon dioxide gas storage tank 12 into the two rotating pipes 22, at the moment, the adding motor 17 is utilized to drive the transmission wheel group 19 to rotate so as to drive the transmission chain 20 to rotate so as to drive the main chain wheel 21 to rotate, the transmission wheel group 19 and the main chain wheel 21 can drive the rotating pipes 22 at two sides to rotate when rotating, the central pipe 23 can be driven to rotate so as to drive the side pipes 24 to rotate, and the carbon dioxide and the nitrogen can be uniformly added into the gas mixing shell 10, so as to improve the mixing efficiency of carbon dioxide and nitrogen and facilitate the production of mixed gas.
Specifically, as shown in fig. 3 and 4, the top of the gas mixing housing 10 and the top of the nitrogen gas storage tank 11 are fixedly connected with an adding pump 26, the driving wheel set 19 includes a pinion and a pinion sprocket, the pinion is in meshed connection with the main gear 18, the pinion sprocket is in meshed connection with the driving chain 20, the pinion can be driven to rotate when the main gear 18 rotates, thereby driving the pinion sprocket to rotate, and further driving the driving chain 20 to rotate, the driving wheel set 19 and the main sprocket 21 are all provided with fixing holes, the top surface of the gas mixing housing 10 is provided with two symmetrically distributed first mounting holes, the top surface of the mounting housing 16 is provided with two symmetrically distributed second mounting holes, the top end of the rotating tube 22 penetrates through the fixing holes and the second mounting holes and extends to the upper side of the mounting housing 16, the bottom end of the rotating tube 22 penetrates through the first mounting holes and extends to the lower side of the gas mixing housing 10, the side tube 23 is fixedly connected with a plurality of side tubes 24 distributed in a ring array, and the rotating tube 22, the central tube 23 and the side tubes 24 are provided with a plurality of evenly distributed adding holes.
As an optimization scheme, as shown in fig. 2, the adjusting structure comprises an adjusting structure, the adjusting structure comprises a supporting shell 27, a limiting column 28, an adjusting plate 29, a first unidirectional threaded column 30, a connecting column 31, a fixed shell 32, an adjusting motor 33, a second unidirectional threaded column 34, a moving plate 35, a positioning column 36, a connecting plate 37 and a mounting plate 38, wherein the supporting shell 27 is fixedly connected to the top of the supporting plate 1, the bottom of an inner cavity of the supporting shell 27 is fixedly connected with the limiting column 28, the surface of the limiting column 28 is slidably connected with the adjusting plate 29, the adjusting plate 29 is in threaded connection with the surface of the first unidirectional threaded column 30, the bottom of the first unidirectional threaded column 30 is connected with a driving component, one side of the adjusting plate 29 is fixedly connected with the connecting column 31, one end of the connecting column 31 is fixedly connected with the fixed shell 32, the inner cavity side wall of the fixed shell 32 is fixedly connected with the adjusting motor 33, the output end of the adjusting motor 33 is fixedly connected with the second unidirectional threaded column 34, the surface of the second unidirectional threaded column 34 is in threaded connection with the moving plate 35, the moving plate 35 is slidably connected to the surface of the positioning column 36, the positioning column 36 is fixedly connected to the inner cavity side wall of the fixed shell 32, the top of the connecting plate 37 is fixedly connected with the connecting plate 38, and the top of the mounting plate 38 is fixedly connected to the bottom of the fixing plate 5.
Through the above technical scheme, more in order to solve the problem among the prior art, utilize the adjusting structure can adjust the horizontal and vertical position of alternate trachea 7, the problem that the gas injection device is difficult to adjust, application scope is less is solved, be convenient for install alternate trachea 7 according to the position of oil recovery gas injection tubular column, improve the application scope of gas injection device, increase the practicality of gas injection device, when using, drive assembly can drive first unidirectional screw post 30 rotation, can drive adjusting plate 29 along spacing post 28 when first unidirectional screw post 30 rotates, thereby drive fixed casing 32 and fixed pipe 5 equidirectional movement of structure, can adjust the height of fixed pipe 5 and alternate trachea 7, then utilize adjusting motor 33 to drive second unidirectional screw post 34 rotation, thereby drive movable plate 35 and remove along reference column 36, can drive connecting plate 37 equidirectional removal when movable plate 35, and then drive mounting panel 38 and fixed pipe 5 equidirectional removal, and then drive return bend 6 and alternate trachea 7 equidirectional removal, can adjust the horizontal and vertical position of alternate trachea 7, be convenient for adjust alternate trachea 7's position according to the position of gas injection tubular column, be convenient for connect with the alternate gas injection tubular column.
As a further optimized scheme, as shown in fig. 6, the driving assembly includes a connection housing 39, a driving motor 40, a driving sprocket 41 and a connection chain 42, the connection housing 39 is fixedly connected to the bottom of the supporting plate 1, two symmetrically distributed driving sprockets 41 are disposed at the inner cavity of the connection housing 39, the two driving sprockets 41 are in transmission connection with each other through the connection chain 42, the sides of the driving sprockets 41 are engaged with the connection chain 42, the tops of the two driving sprockets 41 are fixedly connected with a first unidirectional threaded column 30, one of the driving sprockets 41 is fixedly connected to the output end of the driving motor 40, the driving motor 40 is fixedly connected to the bottom of the inner cavity of the connection housing 39, two symmetrically distributed preset holes are formed in the supporting plate 1, the top ends of the first unidirectional threaded columns 30 penetrate through the preset holes and are fixedly connected to the top of the inner cavity of the supporting plate 27, and when the driving motor 40 can drive the driving sprocket 41 to rotate so as to drive the connection chain 42 to rotate, and at the same time, the driving sprockets 41 on two sides can rotate simultaneously, and the first unidirectional threaded columns 30 on two sides are driven to rotate simultaneously.
Specifically, as shown in fig. 7 and 8, two symmetrically distributed support shells 27 are fixedly connected to the top of the support plate 1, adjusting ports are formed in opposite sides of the two support shells 27, two symmetrically distributed connecting columns 31 are fixedly connected to one side of the adjusting plate 29, one end of each connecting column 31 penetrates through each adjusting port and extends to the outer side of the support shell 27, two symmetrically distributed limit columns 28 are fixedly connected to the bottom of an inner cavity of the support shell 27, two symmetrically distributed limit holes are formed in the adjusting plate 29, the top ends of the limit columns 28 penetrate through the limit holes and are fixedly connected to the top of the inner cavity of the support shell 27, and the limit columns 28 can limit the moving track of the adjusting plate 29.
Specifically, as shown in fig. 7 and 8, two symmetrically distributed positioning columns 36 are fixedly connected to the inner cavity side wall of the fixed housing 32, two symmetrically distributed positioning holes are formed in the moving plate 35, one end of each positioning column 36 penetrates through each positioning hole and is fixedly connected to the inner cavity side wall of the fixed housing 32, the positioning columns 36 can limit the moving track of the moving plate 35, two symmetrically distributed connecting plates 37 are fixedly connected to the top of the moving plate 35, two symmetrically distributed connecting ports are formed in the top surface of the fixed housing 32, and the top ends of the connecting plates 37 penetrate through the connecting ports and extend to the upper portion of the fixed housing 32.
As an optimization scheme, as shown in FIG. 2, the device comprises a moving structure, the moving structure comprises a supporting sliding wheel set 43, a stabilizing shell 44, a fixing column 45, a sliding plate 46, a bidirectional threaded column 47, an adjusting column 48, a mounting frame 49, a lifting plate 50, a lifting column 51 and an anti-slip stabilizing plate 52, wherein the supporting sliding wheel set 43 is fixedly connected to four corners of the bottom of the supporting plate 1, the stabilizing shell 44 is fixedly connected to the bottom of the supporting plate 1, the fixing column 45 is fixedly connected to the inner cavity side wall of the stabilizing shell 44, the sliding plate 46 is slidably connected to the surface of the fixing column 45, the sliding plate 46 is in threaded connection with the surface of the bidirectional threaded column 47, one end of the bidirectional threaded column 47 is connected with a power assembly, the adjusting column 48 is arranged below the sliding plate 46, the mounting frames 49 are rotatably connected to the two ends of the adjusting column 48, the mounting frames 49 above are fixedly connected to the bottom of the sliding plate 46, the mounting frames 49 below the lifting plate 50 are fixedly connected to the top of the lifting plate 50, the lifting column 51 is fixedly connected to the bottom of the lifting plate 51, and the anti-slip stabilizing plate 52 is fixedly connected to the bottom of the lifting plate 51.
Through the above technical scheme, the position of the gas injection device can be conveniently adjusted by utilizing the moving structure, the gas injection device can be more stable during use, oil extraction to shale oil is facilitated, the gas injection device is convenient to use, when in use, one side of the gas injection device can be more labor-saving and rapid by utilizing the supporting sliding wheel set 43, after the gas injection device is moved to a designated area by utilizing the supporting sliding wheel set 43, then the power assembly is utilized to drive the bidirectional threaded column 47 to rotate, the sliding plates 46 on two sides can be driven to move along the fixed column 45 in a reverse way when the bidirectional threaded column 47 rotates, at the moment, the adjusting column 48 can rotate under the action of the mounting frame 49, thereby driving the lifting plate 50 to move downwards, further driving the lifting column 51 to move in the same direction, at the moment, driving the anti-skidding stabilizing plate 52 to move in the same direction, enabling the anti-skidding stabilizing plate 52 to be clung to the ground, the friction force between the gas injection device and the ground can be increased, the gas injection device can be more stable when the gas injection device needs to move, and the anti-skidding stabilizing plate 52 can be far away from the ground by utilizing the opposite mode when the gas injection device needs to move.
As a further optimized scheme, as shown in fig. 2, 9 and 10, the power assembly comprises a power shell 53, a power motor 54, power sprockets 55 and a power chain 56, wherein the power shell 53 is fixedly connected to one side of the stable shell 44, two symmetrically distributed power sprockets 55 are arranged at the inner cavity of the power shell 53, the two power sprockets 55 are in transmission connection with the power chain 56 through the power chain 56, the power sprockets 55 are in meshed connection with the power chain 56, one power sprocket 55 is fixedly connected to the output end of the power motor 54, the power motor 54 is fixedly connected to the inner wall of the power shell 53, two bidirectional threaded columns 47 are fixedly connected to one side of the two power sprockets 55, the power motor 54 can drive the corresponding power sprocket 55 to rotate during use, so as to drive the power chain 56 to rotate, and further drive the other power sprocket 55 to rotate, two symmetrically distributed support holes are formed in one side of the stable shell 44, one end of the bidirectional threaded columns 47 is rotatably connected with the inner cavity side wall of the stable shell 44, the other end of the bidirectional threaded columns 47 penetrates through the support holes and extends to the inner cavity of the power shell 53, the center column 49 comprises a center column and a rectangular side plate and a side plate 48, the center column is fixedly connected to the bottom of the center column 50, and the center column 50 is fixedly connected to the center column 50 is rotatably arranged at the bottom of the center column.
It will be evident to those skilled in the art that the application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the application 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.
The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application 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 application.
Claims (10)
1. A portable aqueous vapor gas injection device in turn for shale oil exploitation, its characterized in that: including the gas injection structure, the gas injection structure includes backup pad (1), storage water tank (2), water injection pump (3), water injection pipe (4), fixed pipe (5), return bend (6), alternative trachea (7), gas injection pipe (8), gas injection pump (9), gaseous mixed shell (10), nitrogen gas storage box (11) and carbon dioxide gas storage box (12), backup pad (1) top rigid coupling storage water tank (2), the entrance point and the storage water tank (2) of water injection pump (3) are connected, the exit end rigid coupling water injection pipe (4) of water injection pump (3), fixed pipe (5) of water injection pipe (4) one end rigid coupling, fixed pipe (5) other end rigid coupling return bend (6), return bend (6) one end rigid coupling has alternative trachea, alternative trachea (7) are used for shale oil exploitation, the one end that return bend (6) were kept away from to fixed pipe (5) still rigid coupling gas injection pipe (8), gas injection pipe (8) one end rigid coupling is in the exit end of gas injection pump (9), water injection pump (3) and gas injection pump (9) are connected with storage water tank (2), injection pump (9) one end rigid coupling is in mixed gas pump (10) top part (10) are provided with the gas mixing component, the stirring assembly comprises a stirring motor (13) and a stirring shaft (14), a nitrogen gas storage box body (11) and a carbon dioxide gas storage box body (12) are arranged on one side of the gas mixing shell body (10), the nitrogen gas storage box body (11) and the carbon dioxide gas storage box body (12) are fixedly connected to the top of the supporting plate (1), the top of the nitrogen gas storage box body (11) and the top of the carbon dioxide gas storage box body (12) are provided with adding assemblies, and the gas injection device further comprises a moving structure.
2. The mobile alternating water and gas injection device for shale oil exploitation according to claim 1, wherein: the stirring assembly further comprises stirring blades (15), the stirring motor (13) is fixedly connected to the top of the gas mixing shell (10), the output end of the stirring motor (13) is fixedly connected with a stirring shaft (14), the stirring blades (15) are fixedly connected to the surface of the stirring shaft (14), a rotating hole is formed in the top surface of the gas mixing shell (10), the bottom end of the stirring shaft (14) penetrates through the rotating hole and extends to the inner cavity of the gas mixing shell (10), and a plurality of stirring blades (15) are fixedly connected to the surface of the stirring shaft (14).
3. The mobile alternating water and gas injection device for shale oil exploitation according to claim 1, wherein: the feeding component comprises a mounting shell (16), a feeding motor (17), a main gear (18), a transmission wheel set (19), a transmission chain (20), a main chain wheel (21), a rotating tube (22), a central tube (23), a side tube (24), a connecting tube (25) and a feeding pump (26), wherein the mounting shell (16) is fixedly connected to the top surface of the gas mixing shell (10), the feeding motor (17) is arranged at the inner cavity of the mounting shell (16), the feeding motor (17) is fixedly connected to the top surface of the gas mixing shell (10), the output end of the feeding motor (17) is fixedly connected with the main gear (18), the side surface of the main gear (18) is meshed with the transmission wheel set (19), the side surface of the transmission wheel set (19) is meshed with the transmission chain (20), the transmission chain (20) is meshed with the side surface of the main chain wheel (21), the transmission wheel set (19) and the main chain wheel (21) are fixedly connected with the rotating tube (22) respectively, the rotating tube (22) extends downwards to the gas mixing shell (10), the bottom end of the rotating tube (22) is fixedly connected to the central tube (23), the side surface of the side tube (23) is meshed with the central tube (23), the side tube (23) is positioned in the gas mixing shell (10), two all rotate on the top of rotating tube (22) and be connected with connecting pipe (25), nitrogen gas storage box (11) top and carbon dioxide gas storage box (12) top all rigid coupling have add pump (26), two add the exit end rigid coupling in nitrogen gas storage box (11) top and carbon dioxide gas storage box (12) top respectively of pump (26), and two connecting pipe (25) one end rigid coupling is in the exit end of two add pump (26) respectively.
4. A mobile alternating water and gas injection device for shale oil extraction as claimed in claim 3, wherein: the transmission wheelset (19) includes pinion and pinion sprocket, pinion and main gear (18) meshing are connected, pinion and drive chain (20) meshing are connected, fixed orifices have all been seted up to transmission wheelset (19) and main chain (21), two symmetrical distribution's first mounting hole has been seted up to gas mixing housing (10) top surface, two symmetrical distribution's second mounting hole has been seted up to installation housing (16) top surface, fixed orifices and second mounting hole are run through on rotor tube (22) top and extend to installation housing (16) top, rotor tube (22) bottom runs through first mounting hole and extends to gas mixing housing (10) inside below, rotor tube (23) side rigid coupling has a plurality of side pipe (24) that are annular array distribution, rotor tube (22), center tube (23) and side pipe (24) all have seted up a plurality of evenly distributed's inlet hole.
5. The mobile alternating water and gas injection device for shale oil exploitation according to claim 1, wherein: including adjusting the structure, adjust the structure including support casing (27), spacing post (28), regulating plate (29), first one-way screw thread post (30), spliced pole (31), fixed casing (32), regulating motor (33), second one-way screw thread post (34), movable plate (35), reference column (36), connecting plate (37) and mounting panel (38), support casing (27) rigid coupling in backup pad (1) top, support casing (27) inner chamber bottom rigid coupling spacing post (28), spacing post (28) surface sliding connection regulating plate (29), regulating plate (29) and first one-way screw thread post (30) surface threaded connection, first one-way screw thread post (30) bottom is connected with drive assembly, regulating plate (29) one side rigid coupling spliced pole (31), fixed casing (32) are fixed to spliced pole (31) one end, fixed casing (32) inner chamber lateral wall rigid coupling regulating motor (33), the output end rigid coupling second one-way screw thread post (34) of regulating motor (33), second one-way screw thread post (34) surface connection has movable plate (35) to move in movable plate (36) inner chamber (36) surface rigid coupling in fixed casing (36), the top of the moving plate (35) is fixedly connected with a connecting plate (37), the top of the connecting plate (37) is fixedly connected with a mounting plate (38), and the top of the mounting plate (38) is fixedly connected with the bottom of the fixed pipe (5).
6. The mobile alternating water and gas injection device for shale oil exploitation according to claim 5, wherein: the driving assembly comprises a connecting shell (39), a driving motor (40), driving sprockets (41) and a connecting chain (42), wherein the connecting shell (39) is fixedly connected to the bottom of an inner cavity of the supporting plate (1), two symmetrically distributed driving sprockets (41) are arranged at the inner cavity of the connecting shell (39), the two driving sprockets (41) are connected through the transmission of the connecting chain (42), the side surfaces of the driving sprockets (41) are connected with the connecting chain (42) in a meshed mode, the tops of the two driving sprockets (41) are fixedly connected with first unidirectional threaded columns (30), one driving sprocket (41) is fixedly connected to the output end of the driving motor (40), the driving motor (40) is fixedly connected to the bottom of the inner cavity of the connecting shell (39), two symmetrically distributed preset holes are formed in the supporting plate (1), and the top ends of the first unidirectional threaded columns (30) penetrate through the preset holes and are fixedly connected to the top of the inner cavity of the supporting shell (27).
7. The mobile alternating water and gas injection device for shale oil exploitation according to claim 5, wherein: the utility model discloses a support plate, including support casing (27), adjusting plate (28), adjusting plate (29), supporting plate (27) top rigid coupling has two symmetric distribution's support casing (27), two adjusting port has all been seted up to one side that supporting plate (27) are relative, adjusting plate (29) one side rigid coupling has two symmetric distribution's spliced pole (31), spliced pole (31) one end runs through the adjusting port and extends to the support casing (27) outside, supporting plate (27) inner chamber bottom rigid coupling has two symmetric distribution's spacing post (28), two symmetric distribution's spacing hole has been seted up to adjusting plate (29), spacing hole and rigid coupling are run through on spacing post (28) top in supporting plate (27) inner chamber top.
8. The mobile alternating water and gas injection device for shale oil exploitation according to claim 5, wherein: the utility model discloses a fixed casing, including fixed casing (32) inner chamber lateral wall rigid coupling, fixed casing (32) inner chamber lateral wall rigid coupling has two symmetric distribution's reference column (36), two symmetric distribution's locating hole have been seted up to movable plate (35), reference column (36) one end runs through the locating hole and rigid coupling in fixed casing (32) inner chamber lateral wall, movable plate (35) top rigid coupling has two symmetric distribution's connecting plate (37), two symmetric distribution's connector has been seted up to fixed casing (32) top surface, connecting plate (37) top runs through the connector and extends to fixed casing (32) top.
9. The mobile alternating water and gas injection device for shale oil exploitation according to claim 1, wherein: the movable structure comprises a supporting sliding wheel set (43), a stabilizing shell (44), a fixing column (45), a sliding plate (46), a bidirectional threaded column (47), an adjusting column (48), a mounting frame (49), a lifting plate (50), a lifting column (51) and an anti-slip stabilizing plate (52), wherein the supporting sliding wheel set (43) is fixedly connected to four corners of the bottom of the supporting plate (1), the stabilizing shell (44) is fixedly connected to the bottom of the supporting plate (1), the fixing column (45) is fixedly connected to the side wall of an inner cavity of the stabilizing shell (44), the sliding plate (46) is slidingly connected to the surface of the fixing column (45), one end of the sliding plate (46) is connected with a power assembly, the adjusting column (48) is arranged below the sliding plate (46), the mounting frame (49) is fixedly connected to the bottom of the sliding plate (46) and the lifting frame (49) is fixedly connected to the top of the lifting plate (50), the bottom of the lifting plate (50) is fixedly connected to the bottom of the lifting column (51), the lifter plate (50) is located within the stabilizing housing (44).
10. The mobile alternating water and gas injection device for shale oil exploitation according to claim 9, wherein: the power assembly comprises a power shell (53), a power motor (54), a power sprocket (55) and a power chain (56), wherein the power shell (53) is fixedly connected to one side of a stable shell (44), two symmetrically distributed power sprockets (55) are arranged at the inner cavity of the power shell (53), the two power sprockets (55) are connected through the power chain (56) in a transmission mode, the power sprocket (55) and the power chain (56) are connected in a meshed mode, one power sprocket (55) is fixedly connected to the output end of the power motor (54), the power motor (54) is fixedly connected to the inner wall of the power shell (53), two power sprockets (55) are fixedly connected with two bidirectional threaded columns (47) on one side, close to the power shell (53), of one side of the stable shell (44), one end of each bidirectional threaded column (47) is rotatably connected with the inner cavity side wall of the stable shell (44), the other end of each bidirectional threaded column (47) penetrates through the supporting hole and extends to the inner cavity of the power shell (53), the power sprocket (55) comprises a center column and a side plate, the center column (49) is fixedly connected with the center column (50) in a lifting plate, and the center column (48) is fixedly connected to the bottom of the lifting column, and the lifting column (50) is fixedly connected to the lifting column.
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