1. A water and gas comprehensive utilization system of a co-associated resource mining area is characterized in that: the comprehensive utilization system of water and gas in the associated resource mining area comprises:

geological mechanisms including surface layers, uranium reservoirs, coal reservoirs, oil and gas reservoirs; the operation mechanism comprises an oil gas tank, a water storage lake, a uranium collecting liquid tank, a leaching liquid preparation tank, a liquid pumping pump, a liquid injection pump, a liquid pumping well, a liquid injection pipe, a water pumping pump, a water pumping well, a water conveying pipeline, an oil production machine, an oil-gas cluster well and an oil-gas pipeline; the development mechanism comprises a coal mining filling body, a gob-side roadway, a filling pipe, a concrete body and a communication valve; the repair mechanism comprises a water purification tank, a purifier, a reservoir, a water injection pump and a water injection well; conversion mechanism, including collection chamber, tail gas chamber, combustion chamber, filling mound, gas-supply pipe, heat pipe, the top layer is located the upper portion is hidden to the uranium, the uranium is hidden and is located upper portion is hidden to the coal, the coal is hidden and is located upper portion is hidden to the oil gas, oil gas jar, retaining lake, collection uranium fluid reservoir, solution preparation jar, suction pump, oil recovery machine, drawing liquid pump, infusion pump are arranged in top layer upper portion, the retaining lake passes through suction pump and conduit with the pumping well links to each other, the pumping well is arranged in the top layer with between the coal is hidden, the oil recovery machine is connected with the oil gas jar by oil gas pipeline, the oil gas cluster well is arranged in between top layer and the oil gas are hidden, collection uranium fluid reservoir passes through the drawing liquid pump with the drawing liquid well is connected, the drawing liquid well is arranged in the top layer with between the uranium is hidden, solution preparation jar pass through the injection pump with annotate liquid well and link to each other, the liquid injection well is arranged between a surface layer and a uranium reservoir, the coal mining filling body passes through the filling pipe and is connected with the concrete body, the concrete body and a clean water reservoir are positioned in the coal reservoir, the water reservoir is positioned at the rear part of the clean water reservoir, the purifier is positioned between the clean water reservoir and the water reservoir, the water injection pump is positioned in the water reservoir, the water injection well is positioned between the water reservoir and the oil gas reservoir, the communicating valve is arranged in the concrete body, the gas collection chamber is positioned at the side of the clean water reservoir and the water reservoir and is respectively connected with the clean water reservoir and the tail gas chamber through the communicating valve, the tail gas chamber is adjacent to the gas collection chamber and is connected with the solution preparation tank through the gas pipe, the combustion chamber and the filling pier are positioned between the gas collection chamber and the tail gas chamber, the heat conducting pipe is arranged in the combustion chamber and between the oil gas reservoir, the gas pipe is arranged in the surface layer and between the coal reservoir, the upper part of the leaching solution preparation tank is connected with the upper part of the leaching solution preparation tank, the lower part of the leaching solution preparation tank is connected with the tail gas chamber, and the gob-side roadway is positioned on the side surface of a concrete body.

2. The system for comprehensively utilizing water and gas in a co-associated resource mine area according to claim 1, wherein: the gas collection chamber is positioned on the side surfaces of the clean water reservoir and the water storage tank and is respectively connected with the clean water reservoir and the tail gas chamber through the communicating valve.

3. The system for comprehensively utilizing water and gas in a co-associated resource mine area according to claim 1, wherein: the tail gas chamber is adjacent to the gas collection chamber and is connected with the leaching solution preparation tank through the gas delivery pipe.

4. The system for comprehensively utilizing water and gas in a co-associated resource mine area according to claim 1, wherein: the combustion chamber is positioned between the gas collection chamber and the tail gas chamber, the left side and the right side of the combustion chamber are connected with the filling piers, and the lower part of the combustion chamber is connected with the heat conduction pipe.

5. The system for comprehensively utilizing water and gas in a co-associated resource mine area according to claim 1, wherein: the heat conduction pipe is arranged between the combustion chamber and the oil and gas reservoir.

6. The system for comprehensively utilizing water and gas in a co-associated resource mine area according to claim 1, wherein: the upper part of the oil-gas cluster well is connected with the oil production machine, the lower part of the oil-gas cluster well is connected with the oil-gas reservoir, and the middle part of the oil-gas cluster well penetrates through the filling pier.

7. An application method of a water and gas comprehensive utilization system of a co-associated resource mining area is characterized in that the water and gas comprehensive utilization system of the co-associated resource mining area according to any one of claims 1 to 6 is adopted, and the application method comprises the following steps:

a. according to the engineering exploration condition, an oil gas tank, a uranium collecting liquid tank, a leaching solution preparation tank, a liquid pumping pump, a liquid injection pump, a liquid pumping well, a liquid injection pipe, a water storage lake, an oil production machine, an oil and gas cluster well, an oil and gas pipeline, a water suction pump, a water suction well, a water pipeline, a gas pipeline, a coal mining filling body and a filling pipe are sequentially arranged;

b. constructing a concrete body through a coal mining filling body in the coal reservoir goaf, sequentially forming a clean water reservoir, a water storage tank, a gas collection chamber and a tail gas chamber, and reserving a gob-side roadway;

c. sequentially constructing a purifier, a water injection pump, a water injection well, a communication valve, a combustion chamber, a filling pier and a heat conduction pipe through a gob-side roadway;

d. the method comprises the following steps that when an oil extraction machine carries out oil and gas extraction and an injection pump carries out ground flooding extraction, a water injection pump, a water suction pump and a coal reservoir goaf water purification mechanism synchronously operate, oil and gas in an oil and gas reservoir are conveyed to a surface layer oil and gas tank through an oil and gas cluster well, the oil extraction machine and an oil and gas pipeline, an overburden layer seepage and water inflow are collected in a water purification tank, pollutants in a water body are treated through a purifier, and treated clean water is conveyed to a reservoir;

e. the reservoir continuously collects clean water treated by the clean water reservoir, oil gas in the oil and gas reservoir is displaced through a water injection pump and a water injection well, and meanwhile, the excess clean water is conveyed to a surface water storage tank through a water pumping well for surface environment restoration or used as life water in a mining area;

f. the gas collection chamber continuously collects the residual gas in the goaf and the residual gas passes through the combustion chamberContinuously converting gas into high-temperature steam and CO₂And O₂Gas, wherein high temperature steam is conducted to the oil and gas reservoir through the heat conduction pipe to reduce oil and gas viscosity, improve oil and gas recovery ratio, and is stored in the tail gas chamber CO₂And O₂Conveying the gas to a surface leaching solution preparation tank through a gas conveying pipe to prepare a neutral leaching solution for leaching and mining uranium ores;

g. and (4) repeating the step (d) to the step (f) under different mining procedures of coal, uranium and oil gas.

Background

Coal is the leading energy of the country, oil gas resources occupy an extremely important position in national economy, uranium ore is the important strategic resource of the country, and aiming at the current situation that coal, uranium and oil gas resources in an Ordos basin are mutually overlapped on a plane and vertically and are mutually overlapped, and development and utilization modes and characteristics are different from each other and mutually influence, how to form a comprehensive utilization, safe and reliable exploitation pattern becomes an important problem which is urgently needed to be solved at present. At present, coordinated development of coal and co-associated resources thereof does not form a unified system, a plurality of problems are faced during mining, the polluted water body is purified and the gas left in the coal reservoir goaf is efficiently converted at the same time through reasonable layout planning, the oil and gas resource recovery rate can be effectively improved, the pollution threat of radionuclides such as uranium and radon to the underground water body and the coal reservoir is reduced, and the space energy efficiency of the coal reservoir goaf is fully utilized. Based on the situation, a comprehensive utilization system and an application method of water and gas in a common associated resource mining area are urgently needed, so that the purposes of green coordinated mining of coal, uranium and oil gas resources and efficient utilization of underground space of a goaf are achieved.

Disclosure of Invention

The embodiment of the invention aims to provide a comprehensive utilization system of water and gas in a co-associated resource mining area, which is characterized in that a repair mechanism and a conversion mechanism are constructed based on a planning operation mechanism, green and reasonable development of the co-associated mining area of coal, uranium and oil gas is carried out, the repair mechanism and the conversion mechanism are utilized to play a role of a coal reservoir goaf, the oil gas and uranium ore recovery ratio is improved, the uranium ore mining cost is reduced, the threat of radioactive nuclide on pollution of an underground water body and the coal reservoir is reduced, the surface environment is repaired at the same time, and the green coordinated mining of the coal, uranium and oil gas resources and the efficient utilization of the underground space of the goaf are finally realized. In order to achieve the purpose, the invention adopts the following technical scheme:

a water and gas comprehensive utilization system of a co-associated resource mining area comprises:

geological mechanisms including surface layers, uranium reservoirs, coal reservoirs, oil and gas reservoirs; the operation mechanism comprises an oil gas tank, a water storage lake, a uranium collecting liquid tank, a leaching liquid preparation tank, a liquid pumping pump, a liquid injection pump, a liquid pumping well, a liquid injection pipe, a water pumping pump, a water pumping well, a water conveying pipeline, an oil production machine, an oil-gas cluster well and an oil-gas pipeline; the development mechanism comprises a coal mining filling body, a gob-side roadway, a filling pipe, a concrete body and a communication valve; the repair mechanism comprises a water purification tank, a purifier, a reservoir, a water injection pump and a water injection well; conversion mechanism, including collection chamber, tail gas chamber, combustion chamber, filling mound, gas-supply pipe, heat pipe, the top layer is located the upper portion is hidden to the uranium, the uranium is hidden and is located upper portion is hidden to the coal, the coal is hidden and is located upper portion is hidden to the oil gas, oil gas jar, retaining lake, collection uranium fluid reservoir, solution preparation jar, suction pump, oil recovery machine, drawing liquid pump, infusion pump are arranged in top layer upper portion, the retaining lake passes through suction pump and conduit with the pumping well links to each other, the pumping well is arranged in the top layer with between the coal is hidden, the oil recovery machine is connected with the oil gas jar by oil gas pipeline, the oil gas cluster well is arranged in between top layer and the oil gas are hidden, collection uranium fluid reservoir passes through the drawing liquid pump with the drawing liquid well is connected, the drawing liquid well is arranged in the top layer with between the uranium is hidden, solution preparation jar pass through the injection pump with annotate liquid well and link to each other, the liquid injection well is arranged between a surface layer and a uranium reservoir, the coal mining filling body passes through the filling pipe and is connected with the concrete body, the concrete body and a clean water reservoir are positioned in the coal reservoir, the water reservoir is positioned at the rear part of the clean water reservoir, the purifier is positioned between the clean water reservoir and the water reservoir, the water injection pump is positioned in the water reservoir, the water injection well is positioned between the water reservoir and the oil gas reservoir, the communicating valve is arranged in the concrete body, the gas collection chamber is positioned at the side of the clean water reservoir and the water reservoir and is respectively connected with the clean water reservoir and the tail gas chamber through the communicating valve, the tail gas chamber is adjacent to the gas collection chamber and is connected with the solution preparation tank through the gas pipe, the combustion chamber and the filling pier are positioned between the gas collection chamber and the tail gas chamber, the heat conducting pipe is arranged in the combustion chamber and between the oil gas reservoir, the gas pipe is arranged in, the upper part of the leaching solution preparation tank is connected with the upper part of the leaching solution preparation tank, the lower part of the leaching solution preparation tank is connected with the tail gas chamber, and the gob-side roadway is positioned on the side surface of a concrete body.

Preferably, the air collection chamber is positioned on the side of the clean water reservoir and the water storage reservoir and is respectively connected with the clean water reservoir and the tail air chamber through the communication valve.

Preferably, the tail gas chamber is adjacent to the gas collection chamber and is connected with the leaching solution preparation tank through the gas conveying pipe.

Preferably, the combustion chamber is located between the gas collecting chamber and the tail gas chamber, the left side and the right side of the combustion chamber are connected with the filling piers, and the lower part of the combustion chamber is connected with the heat conducting pipes.

Preferably, the heat pipe is interposed between the combustion chamber and the hydrocarbon reservoir.

Preferably, the upper part of the oil-gas cluster well is connected with the oil production machine, the lower part of the oil-gas cluster well is connected with the oil-gas reservoir, and the middle part of the oil-gas cluster well penetrates through the filling pier.

The invention also provides an application method of the comprehensive utilization system of the water and the gas in the associated resource mining area, and the application method comprises the following working steps:

a. according to the engineering exploration condition, an oil gas tank, a uranium collecting liquid tank, a leaching solution preparation tank, a liquid pumping pump, a liquid injection pump, a liquid pumping well, a liquid injection pipe, a water storage lake, an oil production machine, an oil and gas cluster well, an oil and gas pipeline, a water suction pump, a water suction well, a water pipeline, a gas pipeline, a coal mining filling body and a filling pipe are sequentially arranged;

b. constructing a concrete body through a coal mining filling body in the coal reservoir goaf, sequentially forming a clean water reservoir, a water storage tank, a gas collection chamber and a tail gas chamber, and reserving a gob-side roadway;

c. sequentially constructing a purifier, a water injection pump, a water injection well, a communication valve, a combustion chamber, a filling pier and a heat conduction pipe through a gob-side roadway;

d. the method comprises the following steps that when an oil extraction machine carries out oil and gas extraction and an injection pump carries out ground flooding extraction, a water injection pump, a water suction pump and a coal reservoir goaf water purification mechanism synchronously operate, oil and gas in an oil and gas reservoir are conveyed to a surface layer oil and gas tank through an oil and gas cluster well, the oil extraction machine and an oil and gas pipeline, an overburden layer seepage and water inflow are collected in a water purification tank, pollutants in a water body are treated through a purifier, and treated clean water is conveyed to a reservoir;

e. the reservoir continuously collects clean water treated by the clean water reservoir, oil gas in the oil and gas reservoir is displaced through a water injection pump and a water injection well, and meanwhile, the excess clean water is conveyed to a surface water storage tank through a water pumping well for surface environment restoration or used as life water in a mining area;

f. the gas collection chamber continuously collects the residual gas in the goaf, and the gas is continuously converted into high-temperature steam and CO through the combustion chamber₂And O₂Gas, wherein high temperature steam is conducted to the oil and gas reservoir through the heat conduction pipe to reduce oil and gas viscosity, improve oil and gas recovery ratio, and is stored in the tail gas chamber CO₂And O₂Conveying the gas to a surface leaching solution preparation tank through a gas conveying pipe to prepare a neutral leaching solution for leaching and mining uranium ores;

g. and (4) repeating the step (d) to the step (f) under different mining procedures of coal, uranium and oil gas.

The invention has the following advantages:

the system for comprehensively utilizing the water and the gas in the associated resource mining area comprises a geological mechanism, an operation mechanism, a development mechanism, a repair mechanism and a conversion mechanism, wherein an underground water, gas, ground oil gas and uranium ore mining mechanism is arranged according to the characteristics of the geological mechanism, and clean water, oil gas resources and uranium-rich solution after underground purification are respectively stored into a water storage lake, an oil gas tank and a uranium liquid tank; constructing a concrete body, forming a repairing mechanism, a converting mechanism and a gob-side roadway, and simultaneously supporting an overlying rock stratum of the coal reservoir and reducing the crack development of the overlying rock; the clean water pool is used for bearing seepage and gushing water of the overlying strata, the water flows into the reservoir after being purified by the purifier, and oil gas resources are displaced in the reservoir through the water injection well; the tail gas generated by the gas conversion mechanism is made into neutral leaching liquid by the leaching liquid preparation tank for uranium ore mining, and high-temperature steam is conveyed to an oil and gas reservoir through the heat conduction pipe, so that the oil and gas viscosity of a reservoir is reduced, the oil and gas recovery ratio is improved, the uranium ore mining cost is reduced, and the green coordinated mining of coal, uranium and oil and gas resources and the efficient utilization of underground space of a goaf are realized finally.

Drawings

A more complete appreciation of this invention, and many of the attendant advantages thereof, will be readily obtained as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings, wherein the accompanying drawings are included to provide a further understanding of the invention and form a part of this specification, and wherein:

FIG. 1 is an overall state diagram in an embodiment of the present invention.

In the figure: 1-a surface layer; 2-uranium deposit; 3-coal reserve; 4-hydrocarbon reservoir; 5-water storage lake; 6-oil gas tank; 7-coal mining filling body; 8-pumping well; 9-water conveying pipeline; 10-a water pump; 11-a water injection pump; 12-a water injection well; 13-oil and gas cluster well; 14-oil extraction machine; 15-a clean water tank; 16-a water reservoir; 17-a purifier; 18-a concrete body; 19-gob side entry; 20-an oil and gas pipeline; 21-a gas collection chamber; 22-a communication valve; 23-a heat pipe; 24-a combustion chamber; 25-filling piers; 26-a tail gas chamber; 27-uranium collection tank; 28-a liquid pump; 29-a liquid injection well; 30-a liquid pumping well; 31-liquid injection pipe; 32-a leaching solution preparation tank; 33-a liquid injection pump; 34-a gas delivery pipe; 35-filling the tube.

Detailed Description

With reference to fig. 1, a system for comprehensively utilizing water and gas in a common associated resource mining area comprises a geological mechanism, an operation mechanism, a development mechanism, a repair mechanism and a conversion mechanism, wherein the repair mechanism and the conversion mechanism are constructed by planning the operation mechanism based on characteristics of the geological mechanism, green and reasonable development of the coal, uranium and oil gas common associated mining area is performed, the repair mechanism and the conversion mechanism are utilized to play a role of a coal seam mining area, oil gas mining rate is improved, uranium mine mining cost is reduced, pollution threat of radioactive nuclides to underground water and coal seams is reduced, surface environment is repaired, and finally green coordinated mining of coal, uranium and oil gas resources and efficient utilization of underground space of the mining area are realized.

In the geological structure, top layer 1 is located 2 upper portions are hidden to the uranium, 2 are hidden to the uranium are located 3 upper portions are hidden to the coal, 3 are located to the coal are hidden 4 upper portions are hidden to the oil and gas.

In the operating mechanism, oil gas jar 6, retaining lake 5, collection uranium fluid jar 27, infusion preparation jar 32, suction pump 10, oil recovery machine 14, drawing liquid pump 28, infusion pump 33 arrange in 1 upper portion in top layer, retaining lake 5 passes through suction pump 10 and conduit 9 with the pumping well 8 links to each other, the pumping well 8 is arranged in top layer 1 with between the coal deposit 3, the oil recovery machine 14 is connected with oil gas jar 6 by oil gas pipeline 20, oil gas cluster well 13 is arranged in between top layer 1 and the oil gas deposit 4, collection uranium fluid jar 27 passes through pumping liquid pump 28 with the pumping well 30 is connected, the pumping well 30 is arranged in 1 in top layer with between the uranium deposits 2, infusion preparation jar 32 passes through the injection pump 33 with annotate the liquid pipe 31 with the injection well 29 links to each other, the injection well 29 is arranged in between 1 in top layer and the uranium deposits 2.

In the development mechanism, the coal mining filling body 7 is connected with the concrete body 18 through the filling pipe 35, the concrete body 18 is located in the coal reservoir 3, the communication valve 22 is arranged in the concrete body 18, and the gob-side entry 19 is located on the side face of the concrete body 18.

In the repair body, clean water reservoir 15 is located in the coal reservoir 3, cistern 16 is located clean water reservoir 15 rear portion, clarifier 17 is located in the middle of clean water reservoir 15 and cistern 16, water injection pump 11 is located in cistern 16, water injection well 12 is located between cistern 16 and the oil gas reservoir 4.

In the conversion mechanism, the gas collection chamber 21 is located in the coal reservoir 3, the tail gas chamber 26 is adjacent to the gas collection chamber 21, the combustion chamber 24 and the filling pier 25 are located between the gas collection chamber 21 and the tail gas chamber 26, the heat conduction pipe 23 is arranged between the combustion chamber 24 and the oil and gas reservoir 4, the gas transmission pipe 34 is arranged between the surface layer 1 and the coal reservoir 3, the upper part of the gas transmission pipe is connected with the leaching solution preparation tank 32, and the lower part of the gas transmission pipe is connected with the tail gas chamber 26.

Referring to FIG. 1, the comprehensive utilization mechanism is firstly determined according to the requirements and the corresponding water body purification and gas conversion process, the polluted water body is treated by the purifier 17, the obtained clean water is used for displacing oil gas and restoring the surface ecology, and the gas is converted into CO by the combustion chamber 24₂And O₂Gas and high temperature steam, in which CO₂And O₂The gas is made into neutral leaching agent through leaching solution preparation tank 32 for uranium mining, and high-temperature steam is guided throughThe heat pipe 23 is conveyed to the oil and gas reservoir 4 to reduce the oil and gas viscosity, and finally the oil and gas recovery rate is improved and the uranium ore exploitation cost is reduced.

The method comprises the following specific steps:

a. according to the engineering exploration condition, an oil gas tank 6, a uranium collection liquid tank 27, a leaching solution preparation tank 32, a liquid pump 28, a liquid injection pump 33, a liquid pumping well 30, a liquid injection well 29, a liquid injection pipe 31, a water storage lake 5, an oil extraction machine 14, an oil gas cluster well 13, an oil gas pipeline 20, a water suction pump 10, a water suction well 8, a water pipeline 9, a gas pipeline 34, a coal mining filling body 7 and a filling pipe 35 are sequentially arranged;

b. a concrete body 18 is constructed in a goaf of the coal reservoir 3 through a coal mining filling body 7, a clean water reservoir 15, a water storage tank 16, an air collection chamber 21, a tail gas chamber 26 and a gob-side entry 19 are sequentially formed;

c. a purifier 17, a water injection pump 11, a water injection well 12, a communication valve 22, a combustion chamber 24, a filling pier 25 and a heat conduction pipe 23 are sequentially constructed through a gob-side roadway 19;

d. when the oil extraction machine 14 carries out oil and gas extraction and the injection pump 33 carries out ground immersion extraction, the water injection pump 11, the water suction pump 10 and the goaf water purification mechanism of the coal reservoir 3 synchronously operate, oil and gas in the oil and gas reservoir 4 are conveyed to the oil and gas tank 6 of the surface layer 1 through the oil and gas cluster well 13, the oil extraction machine 14 and the oil and gas pipeline 20, the water purification tank 15 collects overburden layer seepage and water inflow, pollutants in a water body are treated through the purifier 17, and the treated clean water is conveyed to the water storage tank 16;

e. the reservoir 16 continuously collects the clean water treated by the clean water reservoir 15, oil gas in the oil gas reservoir 4 is displaced through the water injection pump 11 and the water injection well 12, and meanwhile, the excess clean water is conveyed to the water storage tank on the surface layer 1 through the water pumping well 8 to be used for surface environment restoration or used as life water in a mining area;

f. the gas collection chamber 21 continuously collects the residual gas in the goaf, and the gas is continuously converted into high-temperature steam and CO through the combustion chamber 24₂And O₂Gas, wherein high temperature steam is conducted to the reservoir 4 through the heat pipe 23 to reduce the viscosity of the oil and gas and increase the oil and gas recovery ratio, is stored in the tail gas chamber 26CO₂And O₂The gas is conveyed to the surface layer 1 leaching solution preparation tank 32 through a gas conveying pipe 34 to prepare neutral leaching solutionLeaching and exploiting a uranium ore in situ;

g. and (4) repeating the step (d) to the step (f) under different mining procedures of coal, uranium and oil gas.

The above embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.