Natural gas and coal collaborative development method and device, processor and electronic equipment

Abstract

The invention discloses a collaborative development method and device for natural gas and coal, a processor and electronic equipment. The method comprises the steps that a plurality of first operation areas of natural gas to be mined are determined from a natural gas storage layer of a target area, the target area at least stores natural gas and coal, no spacing distance exists between the first operation area and a next area of the first operation area, and the next area is an area adjacent to the first operation area; based on the multiple first operation areas, multiple second operation areas of the coal to be mined are determined from the coal layer of the target area, and the multiple second operation areas are in one-to-one correspondence with the multiple first operation areas; and when natural gas in any first operation area in the multiple first operation areas is mined, coal in the second operation area corresponding to the first operation area is mined. The technical problem that the mining efficiency of natural gas and coal is low is solved.

Description

Technical Field

[0001] The present invention relates to the field of energy mining, and in particular to a method, device, processor and electronic equipment for the coordinated development of natural gas and coal. Background Art

[0002] In the process of natural gas and coal development, cross-development impacts are very likely to occur. For example, gas wells and natural gas production facilities will affect the development plan of coal, cover a large amount of coal resources, and create major safety hazards for coal mining activities, thus leading to technical problems of low efficiency in natural gas and coal mining.

[0003] Currently, no effective solution has been proposed to the above-mentioned technical problem of low extraction efficiency of natural gas and coal. Summary of the invention

[0004] The embodiments of the present invention provide a method, device, processor and electronic device for the coordinated development of natural gas and coal, so as to at least solve the technical problem of low mining efficiency of natural gas and coal.

[0005] According to one aspect of an embodiment of the present invention, a method for coordinated development of natural gas and coal is provided, the method comprising: determining a plurality of first operating areas for natural gas to be mined from a natural gas storage layer in a target area, wherein the target area stores at least natural gas and coal, and there is no spacing distance between a first operating area and a next area of ​​the first operating area, and the next area is an area adjacent to the first operating area; based on the plurality of first operating areas, determining a plurality of second operating areas for coal to be mined from a coal layer in the target area, wherein the plurality of second operating areas correspond one-to-one to the plurality of first operating areas; while exploiting the natural gas in any one of the plurality of first operating areas, exploiting the coal in a second operating area corresponding to any one of the first operating areas, wherein the natural gas content in the target area after exploitation is lower than the first target content, and the coal content in the target area is lower than the second target content.

[0006] Optionally, based on multiple first operating areas, multiple second operating areas for coal to be mined are determined from the coal layer in the target area, including: based on the multiple first operating areas, respectively determining multiple well site locations in the surface layer of the target area; based on the multiple well site locations, determining multiple second operating areas.

[0007] Optionally, based on multiple first operating areas, multiple well site locations in the surface layer of the target area are respectively determined, including: determining the center position of each of the multiple first operating areas; in the surface layer, determining the position on the same vertical line as the center position as the well site location, wherein the vertical line passes through the center position and the well site location, and the vertical line is perpendicular to the plane where the natural gas storage layer is located and the plane where the surface layer is located.

[0008] Optionally, multiple second operating areas are determined based on multiple well site locations, including: based on the multiple well site locations, multiple coal pillar locations are respectively determined in the coal layer of the target area; and each area between adjacent coal pillar locations among the multiple coal pillar locations is respectively determined as multiple second operating areas.

[0009] Optionally, the method further includes: in response to completion of mining of the coal in the second operating area, determining a position of a coal pillar corresponding to the first operating area; and mining the coal at the position of the coal pillar corresponding to the first operating area.

[0010] Optionally, mining the coal at the coal pillar position corresponding to the first operating area includes: performing a plugging operation on the natural gas storage layer; in response to the natural gas storage layer having passed the pressure test after plugging, mining the coal at the coal pillar position corresponding to the first operating area.

[0011] According to one aspect of an embodiment of the present invention, a device for coordinated development of natural gas and coal is provided, and the device may include: a first determination unit, used to determine multiple first operating areas for natural gas to be mined from the natural gas storage layer in the target area, wherein the target area stores at least natural gas and coal, and there is no interval distance between the first operating area and the next area of ​​the first operating area, and the next area is an area adjacent to the first operating area; a second determination unit, used to determine multiple second operating areas for coal to be mined from the coal layer in the target area based on the multiple first operating areas, wherein the multiple second operating areas correspond one-to-one to the multiple first operating areas; an exploitation unit, used to exploit the coal in the second operating area corresponding to any of the multiple first operating areas while exploiting the natural gas in any of the multiple first operating areas, wherein the natural gas content in the target area after exploitation is lower than the first target content, and the coal content in the target area is lower than the second target content.

[0012] According to another aspect of the embodiment of the present invention, a processor is provided, which is used to run a program, wherein when the program is run by the processor, the method for coordinated development of natural gas and coal in the embodiment of the present invention is executed.

[0013] According to another aspect of an embodiment of the present invention, there is also provided an electronic device, comprising: a memory storing an executable program; and a processor for running the program, wherein when the program is running, the method for collaborative development of natural gas and coal in each embodiment of the present invention is executed.

[0014] According to another aspect of the embodiment of the present invention, a computer-readable storage medium is provided, which includes a stored program, wherein when the program is executed, the device where the computer-readable storage medium is located is controlled to execute the method for coordinated development of natural gas and coal in the embodiment of the present invention.

[0015] According to another aspect of an embodiment of the present invention, a computer program product is provided. The computer program product includes a computer program. When the computer program is executed by a processor, the method for coordinated development of natural gas and coal in an embodiment of the present invention is implemented.

[0016] According to another aspect of an embodiment of the present invention, a computer program product is also provided, including a non-volatile computer-readable storage medium, wherein the non-volatile computer-readable storage medium is used to store a computer program, and when the computer program is executed by a processor, the method for collaborative development of natural gas and coal in an embodiment of the present invention is implemented.

[0017] According to another aspect of the embodiments of the present invention, the embodiments of the present application further provide a computer program, which, when executed by a processor, implements the method for coordinated development of natural gas and coal in the above-mentioned embodiments of the present invention.

[0018] In an embodiment of the present invention, when natural gas and coal are developed in a coordinated manner, multiple first operating areas for natural gas to be mined can be determined from the natural gas storage layer in the target area. Based on the multiple determined first operating areas, multiple second operating areas for coal to be mined can be determined from the coal layer in the target area, and when the natural gas in any of the multiple first operating areas is mined, the coal in the second operating area corresponding to any of the first operating areas is mined, thereby achieving the purpose of avoiding major safety hazards in coal mining activities, thereby solving the technical problem of low mining efficiency of natural gas and coal, and further achieving the technical effect of improving the mining efficiency of natural gas and coal. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0020] Figure 1 is a flow chart of a method for coordinated development of natural gas and coal according to an embodiment of the present invention;

[0021] FIG. 2( a ) is a flow chart of a method for collaboratively developing coal and natural gas resources in an overlapping mining rights area according to an embodiment of the present invention;

[0022] FIG2( b ) is a schematic diagram of a stratigraphic structure of a mineral rights overlapping area according to an embodiment of the present invention;

[0023] FIG2( c ) is a schematic diagram of a natural gas well according to an embodiment of the present invention;

[0024] FIG2( d ) is a schematic diagram of simultaneous development of natural gas and coal according to an embodiment of the present invention;

[0025] FIG2( e ) is a schematic diagram of the location of a protective coal pillar in a natural gas development corridor according to an embodiment of the present invention;

[0026] FIG2( f ) is a schematic diagram of a natural gas development corridor overlying coal development according to an embodiment of the present invention;

[0027] FIG2( g ) is a schematic diagram of a block of remaining coal and natural gas to be mined according to an embodiment of the present invention;

[0028] Figure 3 It is a schematic diagram of a natural gas and coal coordinated development device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only embodiments of a part of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0030] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0031] According to an embodiment of the present invention, a method for the coordinated development of natural gas and coal is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in an order different from that shown here.

[0032] Figure 1 is a flow chart of a method for collaborative development of natural gas and coal according to an embodiment of the present invention, the method may include the following steps:

[0033] Step S101, determining a plurality of first operating areas for natural gas to be produced from a natural gas storage layer in a target area.

[0034] In the technical solution provided in the above step S101 of the present invention, the above target area may store at least natural gas and coal. In other words, the above target area may be used to represent an area where the mining rights of coal and natural gas overlap.

[0035] In this embodiment, there is no spacing distance between the first operation area and the next area of ​​the first operation area. The next area may be an area adjacent to the first operation area, that is, the first operation area and the next area of ​​the area may be continuously distributed in the natural gas storage layer. For example, the first operation area may be a natural gas reserve block to be mined.

[0036] In this embodiment, multiple first operating areas of natural gas to be mined are determined from the natural gas storage layer in the target area. Optionally, this embodiment divides the natural gas storage layer in the target area into equal intervals, and multiple first operating areas of natural gas to be mined can be obtained, for example, multiple natural gas reserve blocks to be mined can be obtained. It should be noted that the division distance can be a default distance, and can also be adjusted according to the number of natural gas mining personnel and the properties of natural gas mining equipment. The natural gas mining equipment can include at least one of the following equipment: vertical wells, directional wells, and horizontal wells, etc., which are only used as examples here and are not specifically limited.

[0037] Step S102, based on the multiple first operating areas, determine multiple second operating areas of coal to be mined from the coal seam in the target area.

[0038] In the technical solution provided in the above step S102 of the present invention, the above multiple second operating areas can correspond to the multiple first operating areas one by one. That is, if any of the above multiple first operating areas is in the A area of ​​the natural gas storage layer, the A area is projected into the coal layer to obtain the A' area, and the A' area is reduced according to the horizontal displacement threshold of the natural gas extraction equipment, and the coal resource block segment adjacent to the reduced A' area is determined as the second operating area in the coal layer. For example, the second operating area can be the coal resource block segment range.

[0039] In this embodiment, after determining multiple first operating areas of natural gas to be mined from the natural gas storage layer in the target area, multiple second operating areas of coal to be mined are determined from the coal layer in the target area based on the multiple first operating areas. Optionally, on the basis of determining multiple first operating areas of natural gas to be mined, this embodiment projects the multiple first operating areas determined into the coal layer to obtain multiple projection areas. According to the horizontal displacement threshold of the natural gas mining equipment, the multiple projection areas are reduced, and multiple coal resource blocks adjacent to the reduced multiple projection areas are determined as multiple second operating areas of coal to be mined.

[0040] Step S103, while exploiting the natural gas in any first operating area among the plurality of first operating areas, exploiting the coal in the second operating area corresponding to any first operating area.

[0041] In the technical solution provided in step S103 of the present invention, the content of natural gas in the target area after mining can be lower than the first target content, and the content of coal in the target area after mining can be lower than the second target content. The first target content can be used to determine whether the natural gas in the target area has been fully mined, and the second target content can be used to determine whether the coal in the target area has been fully mined.

[0042] In this embodiment, after determining multiple second operating areas of coal to be mined from the coal layer in the target area based on multiple first operating areas, while mining the natural gas in any of the multiple first operating areas, the coal in the second operating area corresponding to any of the first operating areas is mined. Optionally, based on the determination of multiple second operating areas of coal to be mined, this embodiment controls the natural gas mining equipment to mine the natural gas in any of the first operating areas, and at the same time, controls the coal mining equipment to mine the coal in the second operating area corresponding to the first operating area where the natural gas is mined. The coal mining equipment may include at least one of the following equipment: a drilling machine, a tunneling machine, a crusher, and a screening equipment, which are only used as examples and are not specifically limited.

[0043] Optionally, when all the natural gas in the first operating area has been mined and all the coal in the second operating area has been mined, in the next area of ​​the first operating area, the natural gas in the next area continues to be mined, and at the same time, in the second operating area corresponding to the next area, the coal in the second operating area continues to be mined, thereby natural gas can be mined in each of the multiple first operating areas, and coal can be mined in each of the multiple second operating areas, until the natural gas content in the target area after mining is lower than the first target content, and the coal content in the target area after mining is lower than the second target content.

[0044] In the above steps S101 to S103 of the present application, when co-developing natural gas and coal, multiple first operating areas for natural gas to be mined can be determined from the natural gas storage layer in the target area. Based on the multiple determined first operating areas, multiple second operating areas for coal to be mined can be determined from the coal layer in the target area, and when the natural gas in any of the multiple first operating areas is mined, the coal in the second operating area corresponding to any of the first operating areas is mined, thereby achieving the purpose of avoiding major safety hazards in coal mining activities, thereby solving the technical problem of low mining efficiency of natural gas and coal, and further achieving the technical effect of improving the mining efficiency of natural gas and coal.

[0045] The above method of this embodiment is further introduced below.

[0046] As an optional implementation method, step S102, based on multiple first operating areas, determines multiple second operating areas for coal to be mined from the coal layer in the target area, including: based on the multiple first operating areas, respectively determining multiple well site locations in the surface layer of the target area; based on the multiple well site locations, determining multiple second operating areas.

[0047] In this embodiment, the above-mentioned well site location can be used to indicate the location of the natural gas development corridor.

[0048] In this embodiment, after determining multiple first operating areas for natural gas to be exploited from the natural gas storage layer in the target area, multiple well site locations in the surface layer of the target area are determined based on the multiple first operating areas. Optionally, this embodiment can determine the center position of each of the multiple first operating areas on the basis of determining the multiple first operating areas for natural gas to be exploited, and project the center position of each first operating area into the surface layer of the target area, so as to obtain a first projection position corresponding to the center position. The multiple first projection positions obtained are respectively determined as multiple well site locations in the surface layer of the target area, thereby achieving the purpose of determining the location of the natural gas development corridor.

[0049] In this embodiment, after multiple well site locations in the surface layer of the target area are determined based on multiple first operating areas, multiple second operating areas are determined based on the multiple well site locations. Optionally, based on the determination of multiple well site locations, the embodiment projects the multiple well site locations into the coal layer, and obtains second projection locations corresponding to the well site locations one by one. Based on the obtained multiple second projection locations, multiple coal pillar locations in the coal layer can be determined. In the area between the multiple coal pillar locations, multiple second operating areas of the coal to be mined can be determined.

[0050] As an optional implementation method, based on multiple first operating areas, multiple well site locations in the surface layer of the target area are respectively determined, including: determining the center position of each of the multiple first operating areas; in the surface layer, the position on the same vertical line as the center position is determined as the well site location.

[0051] In this embodiment, the vertical line may pass through the center position and the well site position, and the vertical line may be perpendicular to the plane where the natural gas storage layer is located and the plane where the surface layer is located.

[0052] In this embodiment, the above-mentioned center position may be the center position of the natural gas reserve block to be produced, which is only used as an example and is not specifically limited.

[0053] In this embodiment, after determining multiple first operating areas of natural gas to be mined from the natural gas storage layer in the target area, the center position of each of the multiple first operating areas is determined. Optionally, this embodiment can determine the center position of each of the multiple first operating areas based on determining multiple first operating areas of natural gas to be mined, for example, the center position of each natural gas reserve block to be mined can be determined, which is only used as an example and is not specifically limited.

[0054] In this embodiment, after determining the center position of each of the multiple first operating areas, in the surface layer, the position on the same vertical line as the center position is determined as the well site position. Optionally, on the basis of determining the center position of each first operating area, this embodiment draws a vertical line through the center position to the surface layer, and determines the position of the intersection of the vertical line and the surface layer as the multiple well site positions in the surface layer of the target area, thereby achieving the purpose of determining the location of the natural gas development corridor.

[0055] Optionally, the center position of each first operating area is projected onto the surface layer of the target area to obtain first projection positions corresponding to the center positions. The obtained multiple first projection positions are respectively determined as multiple well site positions in the surface layer of the target area, thereby achieving the purpose of determining the location of the natural gas development corridor.

[0056] As an optional implementation method, multiple second operating areas are determined based on multiple well site locations, including: based on the multiple well site locations, multiple coal pillar locations are respectively determined in the coal layer of the target area; and each area between adjacent coal pillar locations in the multiple coal pillar locations is respectively determined as multiple second operating areas.

[0057] In this embodiment, the above-mentioned coal pillar position can be used to indicate the position of the protective coal pillar block segment.

[0058] In this embodiment, after multiple well site locations in the surface layer of the target area are determined based on multiple first operating areas, multiple coal pillar locations are determined in the coal layer of the target area based on the multiple well site locations. Optionally, this embodiment projects the multiple well site locations into the coal layer based on the determination of the multiple well site locations, and obtains second projection locations corresponding to the well site locations one by one. The obtained multiple second projection locations are respectively determined as multiple coal pillar locations in the coal layer.

[0059] In this embodiment, after a plurality of coal pillar positions are respectively determined in the coal layer of the target area based on a plurality of well site positions, each area between adjacent coal pillar positions in the plurality of coal pillar positions is respectively determined as a plurality of second operating areas. Optionally, this embodiment divides the plurality of coal pillar positions on the basis of determining the plurality of coal pillar positions, and can obtain a plurality of pairs of two-by-two adjacent coal pillar positions. The areas between the obtained plurality of pairs of coal pillar positions can be respectively determined as a plurality of second operating areas of the coal to be mined. For example, the areas between adjacent protective coal pillar blocks can be respectively determined as a plurality of coal resource block ranges of the coal to be mined.

[0060] As an optional embodiment, the method further includes: in response to completion of mining of the coal in the second operating area, determining the position of the coal pillar corresponding to the first operating area; and mining the coal at the position of the coal pillar corresponding to the first operating area.

[0061] In this embodiment, in response to the coal in the second operating area having been mined, the position of the coal pillar corresponding to the first operating area is determined. Optionally, this embodiment detects whether the coal in the second operating area has been mined, and a detection result can be obtained. If the detection result obtained is that the coal in the second operating area has been mined, the position of the coal pillar corresponding to the first operating area can be determined, for example, the position of the protective coal pillar block corresponding to the natural gas reserve block to be mined can be determined.

[0062] In this embodiment, in response to the completion of mining of the coal in the second operating area, after determining the position of the coal pillar corresponding to the first operating area, the coal at the position of the coal pillar corresponding to the first operating area is mined. Optionally, in this embodiment, after performing a plugging operation on the natural gas storage layer, based on determining the position of the coal pillar corresponding to the first operating area, the coal at the position of the coal pillar corresponding to the first operating area may be mined, for example, the coal at the position where the above-mentioned protective coal pillar block is located.

[0063] As an optional implementation method, mining the coal at the coal pillar position corresponding to the first operating area includes: performing a plugging operation on the natural gas storage layer; in response to the natural gas storage layer having passed the pressure test after plugging, mining the coal at the coal pillar position corresponding to the first operating area.

[0064] In this embodiment, in response to the completion of mining of the coal in the second operating area, after determining the position of the coal pillar corresponding to the first operating area, a plugging operation is performed on the natural gas storage layer. Optionally, this embodiment performs a plugging operation on the natural gas storage layer where the first operating area is located based on the determination of the position of the coal pillar corresponding to the first operating area. For example, the plugging operation is performed on the natural gas storage layer by injecting cement into the gas layer section and the middle formation section of the natural gas storage layer, which is only an example and not specifically limited here.

[0065] In this embodiment, after the plugging operation is performed on the natural gas storage layer, in response to the plugged natural gas storage layer having passed the pressure test, the coal at the position of the coal pillar corresponding to the first operation area is mined. Optionally, on the basis of performing the plugging operation on the natural gas storage layer, the coal seam section of the coal carbon layer, the aquifer section of the aquifer, the wellhead section of the surface layer, the inner and outer annuli of the casing of the natural gas well, and the pressure test is performed on the plugged natural gas storage layer, the coal seam, and the surface layer. If the plugged natural gas storage layer, the coal seam, and the surface layer have passed the pressure test, the coal at the position of the coal pillar corresponding to the first operation area can be mined.

[0066] In an embodiment of the present invention, when natural gas and coal are developed in a coordinated manner, multiple first operating areas for natural gas to be mined can be determined from the natural gas storage layer in the target area. Based on the multiple determined first operating areas, multiple second operating areas for coal to be mined can be determined from the coal layer in the target area, and when the natural gas in any of the multiple first operating areas is mined, the coal in the second operating area corresponding to any of the first operating areas is mined, thereby achieving the purpose of avoiding major safety hazards in coal mining activities, thereby solving the technical problem of low mining efficiency of natural gas and coal, and further achieving the technical effect of improving the mining efficiency of natural gas and coal.

[0067] The technical solution of the embodiment of the present invention is illustrated below in conjunction with preferred implementation modes.

[0068] In the process of natural gas and coal development, cross-development impacts are very likely to occur. For example, gas wells and natural gas production facilities will affect the development plan of coal, cover a large amount of coal resources, and create major safety hazards for coal mining activities, thus leading to technical problems of low efficiency in natural gas and coal mining.

[0069] In order to solve the above technical problems, an embodiment of the present invention proposes a method for the coordinated development of natural gas and coal. When co-developing natural gas and coal, multiple first operating areas for natural gas to be mined can be determined from the natural gas storage layer in the target area. Based on the multiple determined first operating areas, multiple second operating areas for coal to be mined can be determined from the coal layer in the target area, and when the natural gas in any of the multiple first operating areas is mined, the coal in the second operating area corresponding to any of the first operating areas is mined, thereby achieving the purpose of avoiding major safety hazards in coal mining activities, thereby solving the technical problem of low mining efficiency of natural gas and coal, and further achieving the technical effect of improving the mining efficiency of natural gas and coal.

[0070] In this embodiment, through the method for collaborative development of coal and natural gas resources in the overlapping mining rights area, it is possible to exploit the natural gas in any of the multiple first operating areas while exploiting the coal in the second operating area corresponding to any of the first operating areas. For example, FIG2(a) is a flow chart of a method for collaborative development of coal and natural gas resources in the overlapping mining rights area according to an embodiment of the present invention. As shown in FIG2(a), the method may include the following steps:

[0071] Step S201, in the overlapping mining rights area, divide the natural gas storage layer into a plurality of natural gas reserve blocks to be mined.

[0072] In the technical solution provided in step S201 of the present invention, the stratigraphic structure of the above-mentioned mineral rights overlapping area can be as shown in Figure 2(b), which is a schematic diagram of the stratigraphic structure of a mineral rights overlapping area according to an embodiment of the present invention. The above-mentioned mineral rights overlapping area may include a surface layer 1, a loose layer 2, an aquifer 3, a coal layer 4 and a natural gas storage layer 5.

[0073] In this embodiment, the natural gas storage layer 5 is divided into a plurality of natural gas reserve blocks to be produced, wherein the plurality of natural gas reserve blocks to be produced are not spaced apart from each other and are continuously distributed.

[0074] In this embodiment, FIG. 2(c) is a schematic diagram of a natural gas well according to an embodiment of the present invention, wherein the natural gas reserve block to be mined can be mined using a single well type or a combination of well types such as a vertical well 7, a directional well 8 and a horizontal well 9 as shown in FIG. 2(c). The directional well 8 can be applied to a natural gas storage layer with longitudinal multi-layer dispersion and single sand body cutting and superposition characteristics. The maximum horizontal displacement of the directional well 8 can be 11, represented by the symbol D1. The maximum horizontal displacement of the directional well is often affected by drilling, logging, production and reservoir depth. The horizontal well 9 can be applied to a natural gas storage layer with large scale, good physical properties, vertical reserve concentration of more than 45% to 60%, and effective thickness greater than 5m. The maximum horizontal displacement of the horizontal well 9 can be 12, represented by the symbol D2. The maximum horizontal displacement of the horizontal well is often affected by reservoir distribution direction, drilling technology, equipment capacity and geological guidance. The natural gas leakage distance of the natural gas well target point (target area) 10 is 13, represented by the symbol R.

[0075] After the natural gas storage layer is divided into a plurality of natural gas reserve blocks to be mined, the process proceeds to step S202 to set strip-shaped natural gas wells on the surface and estimate the well site layout range.

[0076] In the technical solution provided in the above step S202 of the present invention, the directional well 8 and horizontal well 9 of natural gas have the characteristics of large resource development control distance under the condition of fixed wellhead on the surface, and strip-shaped natural gas wells are set on the surface to estimate the layout range of the well site. As shown in Figure 2(c), the natural gas resources enter the natural gas well channel at the underground natural gas well target point (target area) 10, and then go to the surface layer 1 under the action of the formation pressure, and enter the gathering and transportation pipeline network through the gas tree 6.

[0077] In this embodiment, FIG. 2(d) is a schematic diagram of simultaneous development of natural gas and coal according to an embodiment of the present invention. As shown in FIG. 2(d), when selecting the strip-shaped expected well site location 21 (hereinafter referred to as the "natural gas development corridor"), it can be determined based on the specific distribution of the natural gas storage layer 5, and the strip-shaped expected well site location 21 can be set at the center of the natural gas reserve block 23 to be produced in the acquisition area, for example, the position corresponding to the strip-shaped expected well site location 21 and the natural gas reserve block 23 to be produced shown in FIG. 2(d). The width of the natural gas reserve block 23 to be produced can be 25, which is represented by the symbol D. When the natural gas reserve block to be produced is mainly developed by directional wells, the condition D≤2(D1+R) is satisfied; when the natural gas reserve block to be produced is mainly developed by horizontal wells, the condition D≤2(D2+R) is satisfied.

[0078] After strip-shaped natural gas wells are set on the surface and the well site layout range is estimated, step S203 is entered to determine the protective coal pillar block section of the natural gas development corridor.

[0079] In the technical solution provided in the above step S203 of the present invention, a corresponding protective coal pillar block segment 19 is reserved for the above-mentioned strip-shaped expected well site location 21, thereby ensuring that the natural gas well reaches the natural gas storage layer 5 through the complete rock layer and is not affected by the corridor coal resource block segment range 22 formed by the mining of the coal carbon layer 4.

[0080] In this embodiment, the position of the protective coal pillar in the natural gas development corridor can be as shown in Figure 2(e), which is a schematic diagram of the position of the protective coal pillar in the natural gas development corridor according to an embodiment of the present invention. Among them, the width of the strip-shaped expected well site position 21 can be 14, represented by the symbol B1. The width 14 of the natural gas development corridor can be determined according to the direction of the natural gas well site, the number of natural gas wells and the process requirements of the gas production tree 6, etc., including the distance margin of the surface maintenance zone, and the empirical value of the width is 100m to 300m. The movement angle of the loose layer 2 is 17, represented by the symbol α1, and the empirical value can be 45°. The thickness of the loose layer 2 is 26, represented by the symbol h1. The movement angle of the bedrock layer is 18, represented by the symbol α2. Among them, the movement angle of the bedrock layer is related to the thickness, structure and mechanical parameters of the overburden layer. The thickness of the bedrock layer is 27, represented by the symbol h2. Generally speaking, the loose layer movement angle 17 and the bedrock layer movement angle can be obtained by engineering analogy, field measurement and other methods. The width 16 of the protective coal pillar block segment 19 is represented by the symbol B3. The width 15 is a component of the protective coal pillar block segment 19, represented by the symbol B2, and the calculation formula of B2 can be shown as follows:

[0081]

[0082] B3=2B2+B1 (2)

[0083] After determining the protective coal pillar blocks of the natural gas development corridor, proceed to step S204 to determine the range of the coal resource blocks between the corridors.

[0084] In the technical solution provided in the above step S204 of the present invention, as shown in FIG2(d), a pair of adjacent natural gas development corridors are set up in the overlapping area of ​​coal and natural gas resources, and each natural gas development corridor needs to reserve a corresponding protective coal pillar block section 19. An inter-corridor coal resource block section range 22 is formed between adjacent protective coal pillar blocks 19, wherein the inter-corridor coal resource block section range does not affect natural gas drilling, nor does it affect the development of natural gas storage layers, and can be used for safe coal development.

[0085] In this embodiment, the width of the coal resource block range 22 between corridors is 24, which is represented by the symbol L1, wherein the calculation formula of the width of the coal resource block range 22 between corridors can be shown as follows:

[0086] L1=D-B3 (3)

[0087] After determining the protective coal pillar blocks of the natural gas development corridor, the process proceeds to step S205 to simultaneously exploit the natural gas reserve blocks to be exploited and the corresponding coal resource blocks between the corridors.

[0088] In the technical solution provided in the above step S205 of the present invention, the natural gas development facilities are arranged in the natural gas development corridor 21. The natural gas under the natural gas development corridor 21 can be developed through natural gas wells (for example, vertical wells 7, directional wells 8 and horizontal wells 9), and the natural gas facilities such as natural gas wells and gas trees on the corridor are ensured to operate safely by the corresponding protective coal pillar blocks 19. The coal resource block range 22 between the corridors can be arranged with mining working faces for coal resource recovery, thereby realizing the development of the coal resource blocks 22 between the corridors and the natural gas reserve blocks 23 to be mined in the same time period.

[0089] After the natural gas reserve block to be mined and the corresponding inter-corridor coal resource block are mined simultaneously, the process proceeds to step S206. After the development of the natural gas reserve block is completed, the corresponding protective coal pillar block is mined.

[0090] In the technical solution provided in the above step S206 of the present invention, the process of the above-mentioned natural gas development corridor overlying coal development can be shown in Figure 2(f), which is a schematic diagram of a natural gas development corridor overlying coal development according to an embodiment of the present invention. Among them, after the development of the natural gas reserve block segment 23 to be mined is completed, the natural gas wells (vertical wells 7, directional wells 8, horizontal wells 9) in the natural gas development corridor enter an abandoned state. Before the subsequent mining of the corresponding protective coal pillar block segment 19, it is necessary to solve the problem of the overburden rock fracture and the natural gas well forming a water and gas channel to prevent the overlying aquifer 3 and the natural gas reservoir 5 from conducting the mining space.

[0091] Specifically, cement plugging is performed on the gas layer section and the middle formation section of the natural gas storage layer 5, the coal layer section of the coal layer 4, the aquifer section of the aquifer 3, and the wellhead section of the surface layer 1, the inner casing of the natural gas well, the annulus between the casings, and the annulus outside the casing. Mechanical plugs (e.g., bridge plugs, packers, or cement retainers, etc.) are set at the top of the natural gas storage layer 5, the bottom of the coal layer 4, and the bottom of the aquifer 3 to enhance the barrier.

[0092] It should be noted that waiting for setting under pressure, drilling plug surface and step-by-step pressure testing are important criteria for evaluating the quality of plugging. The plugging of the entire well section should strictly follow the pressure test inspection of the cement plug, mechanical plug and plug surface after segmented plugging in each section. The waiting time under pressure is required to be 48h, the error of drilling plug surface should not exceed 10m, the cement plug test pressure is 15MPa, and the pressure drop in 30min is not more than 0.5MPa to be qualified. If the pressure test fails, the plugging operation needs to be repeated.

[0093] In this embodiment, after the development of the natural gas reserve block 23 to be mined is completed and the safety plugging is ready, the strip-shaped expected well site location 21 is mined to leave a corresponding protective coal pillar block 19. In other words, the protective coal pillar block 19 becomes a corridor-covered coal resource block 28.

[0094] After the corresponding protective coal pillar blocks are mined, the process proceeds to step S207 to open the remaining natural gas reserve blocks to be mined in the natural gas storage layer and the corresponding corridor coal resource blocks, and to mine the corresponding protective coal pillar blocks.

[0095] In the technical solution provided in the above step S207 of the present invention, the above remaining natural gas reserve blocks to be mined and the corresponding corridor coal resource blocks can be as shown in Figure 2(g), which is a schematic diagram of remaining coal to be mined and natural gas blocks to be mined according to an embodiment of the present invention, wherein the remaining natural gas reserve blocks 23 to be mined and the corridor coal resource blocks 22 in the natural gas storage layer are mined in sequence, and after the development of the natural gas reserve blocks 23 to be mined and the corridor coal resource blocks 22 is completed and the safety plugging preparation is in place, the corresponding protective coal pillar blocks 19 are reserved at the expected well site location 21 in the mining strip until the coal resources and natural gas resources in the natural gas storage layer are mined.

[0096] In this embodiment, when natural gas and coal are developed in a coordinated manner, multiple first operation areas for natural gas to be mined can be determined from the natural gas storage layer in the target area. Based on the multiple determined first operation areas, multiple second operation areas for coal to be mined can be determined from the coal layer in the target area, and when the natural gas in any of the multiple first operation areas is mined, the coal in the second operation area corresponding to any of the first operation areas is mined, thereby achieving the purpose of avoiding major safety hazards in coal mining activities, thereby solving the technical problem of low mining efficiency of natural gas and coal, and further achieving the technical effect of improving the mining efficiency of natural gas and coal.

[0097] According to an embodiment of the present invention, a natural gas and coal collaborative development device is also provided. It should be noted that the natural gas and coal collaborative development device can be used to execute a natural gas and coal collaborative development method in the embodiment.

[0098] Figure 3 Schematic diagram of a natural gas and coal collaborative development device according to an embodiment of the present invention. Figure 3 As shown, the natural gas and coal collaborative development device 300 may include: a first determination unit 301 , a second determination unit 302 and an exploitation unit 303 .

[0099] The first determination unit 301 is used to determine multiple first operating areas for natural gas to be exploited from the natural gas storage layer in the target area, wherein the target area stores at least natural gas and coal, and there is no interval distance between the first operating area and the next area of ​​the first operating area, and the next area is an area adjacent to the first operating area.

[0100] The second determination unit 302 is used to determine multiple second operating areas of coal to be mined from the coal seam in the target area based on the multiple first operating areas, wherein the multiple second operating areas correspond one-to-one to the multiple first operating areas.

[0101] The mining unit 303 is used to mine coal in a second operating area corresponding to any first operating area while mining natural gas in any first operating area among multiple first operating areas, wherein the natural gas content in the target area after mining is lower than the first target content, and the coal content in the target area is lower than the second target content.

[0102] Optionally, the second determination unit 302 may include: a first determination module for determining multiple well site locations in the surface layer of the target area based on multiple first operating areas; and a second determination module for determining multiple second operating areas based on the multiple well site locations.

[0103] Optionally, the first determination module may include: a first determination submodule, used to determine the center position of each first operating area among multiple first operating areas; a second determination submodule, used to determine the position on the same vertical line as the center position in the surface layer as the well site position, wherein the vertical line passes through the center position and the well site position, and the vertical line is perpendicular to the plane where the natural gas storage layer is located and the plane where the surface layer is located.

[0104] Optionally, the second determination module may include: a third determination submodule, used to determine multiple coal pillar positions in the coal seam in the target area based on multiple well site locations; and a fourth determination submodule, used to determine each area between adjacent coal pillar positions among the multiple coal pillar positions as multiple second operating areas.

[0105] Optionally, the natural gas and coal collaborative development device 300 may also include: a third determination unit, used to determine the position of the coal pillar corresponding to the first operating area in response to the completion of the mining of the coal in the second operating area; and a first mining unit, used to mine the coal at the position of the coal pillar corresponding to the first operating area.

[0106] Optionally, the first mining unit may include: a plugging module for performing a plugging operation on the natural gas storage layer; and a mining module for mining coal at a coal pillar position corresponding to the first operating area in response to the natural gas storage layer having passed the pressure test after plugging.

[0107] In this embodiment, a first determination unit is used to determine a plurality of first operating areas for natural gas to be mined from a natural gas storage layer in a target area, wherein the target area stores at least natural gas and coal, and there is no spacing distance between a first operating area and a next area of ​​the first operating area, and the next area is an area adjacent to the first operating area; a second determination unit is used to determine a plurality of second operating areas for coal to be mined from a coal layer in a target area based on the plurality of first operating areas, wherein the plurality of second operating areas correspond one-to-one to the plurality of first operating areas; and an exploitation unit is used to exploit coal in a second operating area corresponding to any of the first operating areas while exploiting natural gas in any of the plurality of first operating areas, wherein the content of natural gas in the target area after exploitation is lower than the first target content, and the content of coal in the target area is lower than the second target content, thereby achieving the purpose of avoiding major safety hazards to coal mining activities, thereby solving the technical problem of low mining efficiency of natural gas and coal, and further achieving the technical effect of improving the mining efficiency of natural gas and coal.

[0108] According to an embodiment of the present invention, a processor is further provided, the processor being used to run a program, wherein when the program is run by the processor, the method for coordinated development of natural gas and coal in the embodiment is executed.

[0109] According to an embodiment of the present invention, there is also provided an electronic device, comprising: a memory storing an executable program; and a processor for running the program, wherein the method for collaborative development of natural gas and coal in the embodiment is executed when the program is running.

[0110] According to another aspect of the present invention, a computer-readable storage medium is provided, which includes a stored program, wherein when the program is executed, the device where the computer-readable storage medium is located is controlled to execute the method for coordinated development of natural gas and coal in the embodiment.

[0111] According to an embodiment of the present invention, a computer program product is also provided. The computer program product includes a computer program, wherein when the computer program is executed by a processor, the method for coordinated development of natural gas and coal in the embodiment is implemented.

[0112] According to an embodiment of the present invention, a computer program product is also provided, including a non-volatile computer-readable storage medium, wherein the non-volatile computer-readable storage medium is used to store a computer program, and when the computer program is executed by a processor, the method for collaborative development of natural gas and coal in the embodiment is implemented.

[0113] According to an embodiment of the present invention, a computer program is also provided, and when the computer program is executed by a processor, the method for coordinated development of natural gas and coal in the embodiment is implemented.

[0114] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0115] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0116] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0117] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed over multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0118] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0119] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the relevant technology or the whole or part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the methods of each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, referred to as Read-Only Memory), random access memory (RAM, referred to as Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.

[0120] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for the coordinated development of natural gas and coal, characterized in that: include: Determine a plurality of first operation areas for natural gas to be mined from a natural gas storage layer in a target area, wherein the target area stores at least natural gas and coal, and there is no interval distance between the first operation area and a next area of ​​the first operation area, and the next area is an area adjacent to the first operation area; Based on the multiple first operating areas, determining multiple second operating areas for mining the coal from the coal seam in the target area, wherein the multiple second operating areas correspond one-to-one to the multiple first operating areas; While exploiting the natural gas in any one of the multiple first operating areas, the coal in the second operating area corresponding to any one of the first operating areas is exploited, wherein the content of the natural gas in the target area after exploitation is lower than the first target content, and the content of the coal in the target area is lower than the second target content.

2. The method according to claim 1, characterized in that Based on the multiple first operating areas, determining multiple second operating areas for mining the coal from the coal seam in the target area includes: Based on the plurality of first operating areas, respectively determining a plurality of well site locations in the surface layer of the target area; Based on the plurality of wellsite locations, the plurality of second operating areas are determined.

3. The method according to claim 2, characterized in that Based on the multiple first operating areas, multiple well site locations in the surface layer of the target area are determined respectively, including: Determine the center position of each of the plurality of first operating areas; In the surface layer, a position on the same vertical line as the center position is determined as the well site position, wherein the vertical line passes through the center position and the well site position, and the vertical line is perpendicular to the plane where the natural gas storage layer is located and the plane where the surface layer is located.

4. The method according to claim 2, characterized in that: Based on the multiple well site locations, determining the multiple second operating areas includes: Based on the multiple well site locations, respectively determine multiple coal pillar locations in the coal seam of the target area; Each area between adjacent coal pillar positions among the plurality of coal pillar positions is respectively determined as the plurality of second operation areas.

5. The method according to claim 4, characterized in that The method further comprises: In response to completion of mining of the coal in the second operating area, determining a position of a coal pillar corresponding to the first operating area; The coal at the coal pillar position corresponding to the first operation area is mined.

6. The method according to claim 5, characterized in that Mining coal at a coal pillar position corresponding to the first operating area includes: performing a plugging operation on the natural gas storage layer; In response to the natural gas storage layer having passed the pressure test after plugging, coal at the position of the coal pillar corresponding to the first operating area is mined.

7. A natural gas and coal collaborative development device, characterized in that: include: A first determining unit is used to determine a plurality of first operating areas for natural gas to be exploited from a natural gas storage layer in a target area, wherein the target area stores at least natural gas and coal, and there is no interval distance between the first operating area and a next area of ​​the first operating area, and the next area is an area adjacent to the first operating area; A second determining unit is used to determine, based on the multiple first operating areas, multiple second operating areas for mining the coal from the coal seam in the target area, wherein the multiple second operating areas correspond one-to-one to the multiple first operating areas; A mining unit is used to mine coal in a second operating area corresponding to any first operating area while mining natural gas in any first operating area among the multiple first operating areas, wherein the content of the natural gas in the target area after mining is lower than the first target content, and the content of the coal in the target area is lower than the second target content.

8. A processor, characterized in that: The processor is used to run a program, wherein the program, when run by the processor, executes the method for coordinated development of natural gas and coal as described in any one of claims 1 to 6.

9. An electronic device, characterized in that: include: A memory storing an executable program; A processor is used to run the program, wherein the program, when running, executes the method for coordinated development of natural gas and coal as described in any one of claims 1 to 6.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored executable program, wherein when the executable program is run, the device where the storage medium is located is controlled to execute the method for coordinated development of natural gas and coal as described in any one of claims 1 to 6.

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