WO2022262261A1 - Mine de gaz de charbon et de gaz de houille - Google Patents

Mine de gaz de charbon et de gaz de houille Download PDF

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Publication number
WO2022262261A1
WO2022262261A1 PCT/CN2022/070244 CN2022070244W WO2022262261A1 WO 2022262261 A1 WO2022262261 A1 WO 2022262261A1 CN 2022070244 W CN2022070244 W CN 2022070244W WO 2022262261 A1 WO2022262261 A1 WO 2022262261A1
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Prior art keywords
coal
gas
roadway
mine
gasification
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PCT/CN2022/070244
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English (en)
Chinese (zh)
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柴兆喜
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柴兆喜
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Publication of WO2022262261A1 publication Critical patent/WO2022262261A1/fr

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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/006—Production of coal-bed methane
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
    • E21B43/164—Injecting CO2 or carbonated water
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
    • E21B43/166—Injecting a gaseous medium; Injecting a gaseous medium and a liquid medium
    • E21B43/168—Injecting a gaseous medium
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
    • E21B43/18—Repressuring or vacuum methods
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
    • E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
    • E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
    • E21B43/243—Combustion in situ
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/295—Gasification of minerals, e.g. for producing mixtures of combustible gases
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/30—Specific pattern of wells, e.g. optimising the spacing of wells
    • E21B43/305—Specific pattern of wells, e.g. optimising the spacing of wells comprising at least one inclined or horizontal well
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C41/00—Methods of underground or surface mining; Layouts therefor
    • E21C41/16—Methods of underground mining; Layouts therefor
    • E21C41/18—Methods of underground mining; Layouts therefor for brown or hard coal
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
    • E21F17/103—Dams, e.g. for ventilation
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose

Definitions

  • the invention relates to the production of coal bed gas and coal gas in a coal seam in a mine, which belongs to the mining technology.
  • underground coal gasification The existing technology for producing coal gas from coal seams is called "underground coal gasification".
  • the coal seam is drilled from the ground, which has the problems of low output, high investment, and cost quotient.
  • countries around the world have stopped testing.
  • the purpose of the coalbed methane gas mine of the present invention is to expand the production capacity of coalbed methane and coal gas, thereby reducing investment and cost.
  • Implement the present invention limit the central part of the minefield mining coal seam range along the coal guide direction, there is a pair of central ventilation shafts close to each other, each central ventilation shaft is respectively connected to a central ventilation coal lane inclined along the coal seam in a coal seam, and the mine field is divided into
  • the two wings of the mine take turns to produce gas and construct the project to take over the production of gas;
  • coalbed methane extraction pipelines connected to the vacuum pump on the ground, and gasification agent oxygen and water vapor transportation pipelines , people work in the system in the center; each wing of the mine is close to the central air intake shaft, and there is a gas shaft for gas flow and transportation along its full section.
  • Mine gas rock roadway transported; coalbed methane gas mines with coalbed methane and coal gas as mining products are composed of shafts on both sides of the mine field, coal roadways, rock roadways and production systems.
  • the mine coal seam is divided into a plurality of coalbed methane coal gas mining areas (hereinafter referred to as mining areas in this application document) along the coal seam inclination;
  • the two ends of the coal lane connect the central ventilation coal lane and the boundary ventilation coal lane.
  • Personnel monitor the coalbed methane and gas production process in the coal lane; in the mining area ventilation and gas injection coal lane, there is a coalbed methane extraction along its entire length.
  • Production pipelines, coalbed methane gas injection pipelines, gasification agent oxygen pipelines, gasification agent water vapor pipelines, compressed air pipelines, carbon dioxide pipelines, water pipelines and power cables constitute the pipeline combination in the mining area; gasification agent water vapor pipelines pass through the rock The hole enters the mine gas rock roadway, and is laid along the mine gas rock roadway and gas shaft; the mining area ventilation gas injection coal roadway on each wing of the mining area, and the coal seam of the working face between each dividing line on both sides constitute a coalbed gas
  • the gas recovery working face (hereinafter referred to as the working face in this application), there are multiple working faces on the two wings of the mining area. When the working face of one wing is producing gas, the working face of the other wing will be constructed; 1.
  • the central ventilation well shaft leads to the ground, which is connected to the coalbed methane extraction vacuum pump and the coalbed methane user pipe network in turn;
  • the underground coalbed methane gas injection pipeline parallel to the coalbed methane extraction pipeline is connected to the user's coalbed methane pipe network on the ground;
  • Both sides of the gas coal roadway are connected to multiple coal bed roadways in the drilling site; each drilling site coal roadway is connected to the coalbed methane extraction coal hole in the coal seam of the working face, and the coalbed methane extraction pipe inserted in the coal hole is connected to the coalbed methane extraction Pipeline, the gap between the pipe and the hole wall is filled with fillers to seal the coalbed methane extraction coal hole;
  • there is a closed wall in the coal roadway of each drilling site, and the closed wall and the end of the coal roadway in the drilling site form an isobaric coal roadway;
  • the coalbed methane gas injection pipe of the coal roadway is connected to the coalbed methane gas injection pipeline; the connection between the coalbed me
  • coalbed methane extraction pipe, coalbed methane extraction pipeline, and coalbed methane extraction vacuum pump After entering the coalbed methane extraction coal hole, coalbed methane extraction pipe, coalbed methane extraction pipeline, and coalbed methane extraction vacuum pump, it is discharged into the user's coalbed methane pipeline network pipeline; at the same time, the coalbed methane gas injection pipe and coalbed methane gas injection pipeline are opened Inject coalbed methane into the coal roadway with equal pressure, increase or decrease the gas injection flow rate, keep the air pressure in the coal roadway on both sides of the closed wall constant, and stop the gas exchange.
  • the gasification coal roadway of the working face connects multiple ends in the coal seam of the working face to the mining boundary line, and connects multiple gasification coal roadways on both sides of each gasification coal roadway
  • Mine gasifier coal lane or mine gasifier coal hole the coal in the mine gasifier coal lane or the coal seam on both sides of the mine gasifier coal hole is gasified to produce coal gas, and the gas flows into the gasification coal lane and working face gas coal in sequence
  • Alleys, coal gas upward rock alleys, mine gas rock alleys, and gas shafts are transported along the entire section of the above-mentioned shafts and roadways to the surface pipelines; along the entire length of the gasification coal roadway, they are divided into multiple furnace groups; within each furnace group, the The gas injection pipes in the coal lanes of adjacent mine gasifiers or coal holes of mine gasifiers are connected to the same main gas injection pipe.
  • the main gas injection pipe passes through the coal pillars along the gasification coal lanes and reaches the ventilation gas injection coal lanes in the mining area. , and connect the pipes in the pipeline combination in the mining area; the gasification coal roadway and the mine gasifier and main gas injection pipe on both sides constitute the gasification coal roadway combination; the furnace group at the end of the gasification coal roadway The adjacent furnace groups take over the production of gas in sequence; at the opening of each gasification coal roadway, there are monitoring pipes passing through the coal pillar to the ventilation gas injection coal roadway in the mining area, and there are devices in the monitoring pipe for collecting gas samples and collecting gas temperature, pressure and other parameters ; During the construction of gasification coal lanes on the working face, the gasification coal lanes are connected to the boundary ventilation coal lanes to form a ventilation system with the gas shaft; One end is connected successively with sandbag explosion-proof airtight wall, explosion-proof airtight wall, carbon dioxide coal lane, airtight wall, compressed air coal lane, airtight wall, working face gas coal lane, and boundary
  • the above constitutes a combination of isobaric explosion-proof and leak-proof airtight walls, which are used for the coal hole joints between each ventilation roadway and gas roadway in this application document;
  • Refractory brick support ring there is a steel plate support ring close to the refractory brick support ring; there is an electric furnace heating in the coal hole coalbed methane shaft;
  • the electric furnace, the combustion tube and the asbestos insulated cable of the electric furnace lead to the central ventilation coal lane; the electric furnace heats the gas in the combustion tube to above its ignition point, the combustion tube injects oxygen and carbon dioxide into the combustion tube, the gas in the barrel ignites spontaneously, and the mine gas rocks the tunnel
  • the gas inside burns to form a torch, keeping the temperature of the gas above the condensation point.
  • the coal gas coal roadway of the working face is successively connected to the horizontal coal roadway of the test mine gasifier in the coal seam of the working face, and the vertical coal roadway of the mine gasifier to reach the upper rock layer of the coal seam; it is close to the end of the horizontal coal roadway of the mine gasifier
  • the mine gasifier coal lane Enter the gas coal lane, gas rock lane, gas shaft in the working face in turn, and flow to the pipeline on the ground; in the mine gasifier coal lane, the gas flow inside and outside the gas injection pipe is opposite; the mine gasifier coal lane, gas injection pipe and The ignition device constitutes a coal lane mine gasifier that is ignited by a reverse gas injection electric furnace; at the opening of the mine gasifier coal lane, there is a monitoring pipe leading to the ventilation gas injection coal lane in the mining area; in the monitoring pipe, there are gas sampling, gas temperature, and pressure monitoring Device; the coal in the coal seams on both sides of the mine gasifier coal roadway is continuously gasified and consumed, forming a continuously expanding pear-shaped goaf; when the gas quality declines, the gas injection pipe is first changed to water injection to generate a large amount of water vapor to replace the goaf After the continuous injection of carbon dioxide to keep the gas from entering the mining area.
  • Implement the present invention test the end of the coal mine coal seam gasification furnace coal roadway in the coal roadway, there is a gasification coal hole perpendicular to it on both sides, there is a gas injection branch pipe connected to the horizontal gas injection pipe in each gasification coal hole, each injection The nozzle of the gas branch pipe is the gas injection point; after the temperature of the coal roadway wall of the test coal roadway mine gasifier is heated by the electric furnace to reach the ignition point of coke, the water vapor and oxygen injected into the horizontal gas injection pipe exit the nozzle of each gas injection branch pipe.
  • the coal gas lane of the working face is connected to the gasification coal hole of the test coal hole in the coal seam of the working face and the gasification coal hole of the mine gasifier.
  • the electric furnace unit system the other end of the armored cable passes through the coal pillar to the ventilated gas injection coal lane in the mining area, and connects the cables inside; the electric furnace is turned on to heat the coal on the wall of the gasification coal hole to the temperature of coke Above the ignition point; the gas injection pipe first injects water vapor to replace the gas in the gasification coal hole, and then injects oxygen and water vapor, and the coal on the wall of the gasification coal hole spontaneously ignites to produce gas; the gas flows into the gas coal lane and gas rock lane of the working face , gas shaft to the ground; gasification coal hole, gas injection pipe, and electric furnace, forming a coal hole mine gasifier for ignition by reverse gas injection electric furnace; test coal lane near the gasification coal hole, connected to the gas coal lane of the working face; test coal lane There are multiple test coal holes leading to the gasification coal hole; the test coal hole has a test tube along the test coal roadway and passes through the coal pillar to the ventilation gas injection coal roadway in the mining area.
  • a pair of central ventilation shafts pass through the coal seam and connect a pair of central ventilation rock roadways inclined along the coal seam in the rock layer below the coal seam;
  • two boundary ventilation shafts pass through the coal seam and connect to the boundary ventilation rock roadway in the rock layer below the boundary line ;
  • Mine ventilation horizontal rock roadway connects the bottom of the above four ventilated rock roadways to form independent ventilation systems in the rock formations of the two wings; both ends of the ventilation gas injection coal roadway in each mining area, downward to the rock roadway, connect the boundary ventilation rock roadway and the central ventilation Rock roadway; in the rock formation directly below the ventilation and gas injection coal roadway in each mining area, there are two ends respectively connecting the boundary ventilation rock roadway and the central ventilation rock roadway in the mining area ventilation horizontal rock roadway; the mining area ventilation horizontal rock roadway and the mining area ventilation gas injection
  • the coal roadway is connected by multiple upward rock roadways to form two sets of ventilation systems on the working face, and personnel work in the system; each wing of each mining area has a mining area gas shaft close to the central ventilation rock roadway;
  • each working face of each wing of mining area is divided into a plurality of gasification sections along the full length of coal seam trend, and each gasification section of each wing produces coal gas in turn; From the center to the boundary of the mine field, the production of gas is successively replaced in sequence; the gas coal lanes of the working faces of each working face are divided into multiple gasification section working face gas coal lanes, and there are coal pillars between the adjacent gasification section working face gas coal lanes.
  • the gas well shaft in each mining area is connected to the air extractor on the ground; before the gasification section of each wing of the mining area produces gas, the air extractor is turned on to exhaust the gas shaft in the mining area, the gas rock roadway of the working face, and the working face of the gasification section.
  • the air in the gas system composed of gas coal lanes, gasification coal lanes and coal seam mine gasifier coal lanes; at the same time, the gas injection pipes of each coalbed gasifier in the gasification section inject carbon dioxide with the same total flow rate, Air replacement; when the gasification section ends the gas production, the induced draft fan exhausts the remaining gas in the gas system, and the gas injection pipes of each mine gasifier in the gasification section inject equal flow of carbon dioxide to replace the gas.
  • 2 mining area gas well shafts close to each other in each mining area pass through the coal seam and the elevation of the central ventilated rock roadway, and the bottom of the shaft is connected with the ventilated rock roadway to form a ventilated mine; Connect and construct the ventilation rock roadway and the central ventilation rock roadway in the mining area of the wing at the elevation; connect and construct the gas rock roadway in the first gasification section working face of the wing at the elevation of the gas rock roadway in the first gasification section; Before the mining area is put into production, there are sluice walls in the rock alleys of each mining area, and there are water discharge pipes on the sluice walls to connect the gas shafts in the mining area; there are sluice walls in the ventilated rock alleys; The face gas rock roadway is filled with water and sediment below the elevation, and the height of the water surface is regulated by regulating the discharge flow of the discharge pipe.
  • each working face and the gas injection coal roadway in the mining area are close to the parallel and equal-length gas coal roadway of the working face, which are successively connected to the gas downward rock roadway, gas horizontal rock roadway,
  • coal gas rock roadways and gas shafts in the mining area parallel to it in the strata directly above the ventilated rock roadways in the mining area each gas horizontal rock roadway has an airtight wall to seal the scrapped working face gas coal roadways.
  • the working face gas coal roadway is located on the boundary of the mining area along the direction of the coal seam, and one end is connected to the mine gas rock roadway and the gas shaft;
  • the mining area ventilation gas injection coal roadway, the working face coal seam, and the working face gas coal roadway are connected sequentially It constitutes the coalbed methane coal gas working face in the middle working face;
  • the gas extraction coal holes are respectively connected to the nearby ventilation and gas injection coal lanes in the mining area and the gas coal lanes in the working face; Ventilation and gas injection coal roadway close to the mining area;
  • each main gas injection pipe in the gasification coal roadway passes through the coal pillar at the end to reach the ventilation and gas injection coal roadway in the mining area, and connects the pipelines in the pipeline combination of the mining area;
  • each gasification coal roadway The furnace group at the end is the first mining
  • Coal mines have changed from producing coal that pollutes the environment to producing clean energy such as coal bed methane and coal gas.
  • FIG 1 Coal bed methane gas mine map of rock roadway above the coal seam
  • 0 is the working face
  • 1 is the central ventilation shaft
  • 2 is the central ventilation shaft
  • 3 is the boundary ventilation shaft
  • 4 is the boundary ventilation coal road
  • 5 is the boundary line of the mining area
  • 6 is the mine gas shaft
  • 9 is the gas coal lane of the working face
  • 10 is the gasification coal lane
  • 11 is the coalbed methane extraction coal hole
  • 19 is the mine ventilation coal lane.
  • Figure 2 Sectional view of the mining area along the gas coal roadway of the working face
  • FIG. 3 Coalbed methane extraction device diagram of the working face
  • 8 is the ventilation and gas injection coal roadway in the mining area; 11 is the coalbed methane extraction coal hole; 19 is the coalbed methane drainage pipe; 20 is the coalbed methane extraction pipe; 21 is the airtight wall; 24 is a coalbed methane extraction pipeline; 25 is a coalbed methane gas injection pipeline; 26 is a filler.
  • 8 is the ventilation gas injection coal roadway in the mining area; 27 is the pipeline combination in the mining area; 28 is the gasification coal roadway; 29 is the mine gasifier coal roadway; 30 is the gas injection pipe; 31 is the main gas injection pipe; 32 is the mine Gasifier coal hole; 33 is the boundary line of the mine gasifier goaf.
  • Figure 5 Plane view of coal bed gasifier test device
  • Figure 6 Structural diagram of reverse gas injection electric furnace ignition coal roadway mine gasifier
  • 28 is a gasification coal lane
  • 29 is a mine gasification coal lane
  • 30 is a gas injection pipe
  • 44 is a gasification coal hole
  • 45 is a gas injection branch pipe
  • 46 is a mine gasification furnace gasification reaction coal wall.
  • Figure 8 Plane view of coalbed methane mining area of rock roadway type under the coal seam
  • 9 is the coal roadway of the working face; 28 is the gasification coal roadway; 51 is the central ventilation rock roadway; 52 is the boundary ventilation rock roadway; 53 is the ventilation rock roadway in the mining area; District gas wells.
  • Figure 9 Diagram of coalbed methane extraction device in rock roadway type coalbed methane gas production area under the coal seam
  • 8 is the ventilation gas injection coal roadway in the mining area; 11 is the coalbed methane extraction coal hole; 47 is the coal seam; 48 is the coal seam boundary line in the mining area; 49 is the ventilation rock roadway in the mining area, and 50 is the upward ventilation rock roadway.
  • Figure 10 Section A-A of Figure 8
  • Figure 11 Section of gas coal roadway in B-B working face in Figure 8
  • Figure 12 Sectional view of the rock roadway mining area under the coal seam of the ventilation and gas injection coal roadway in the double mining area
  • Figure 13 Sectional view of coal seam type CBM gas recovery working face in the middle working face

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  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
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  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
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Abstract

Une mine de gaz de charbon et de gaz de houille. Dans la mine, une pluralité de fronts de taille d'exploitation par gradins de gaz de charbon et de gaz de houille prennent en charge la production tour à tour. Chaque front de taille extrait d'abord du gaz de charbon d'une veine de charbon d'un front de taille à l'aide d'un trou d'extraction de gaz de charbon isobare (11). Ensuite, dans un tunnel de charbon d'injection de gaz et de ventilation (8) pour extraire le gaz de charbon, une conduite d'oxygène d'agent de gazéification et une conduite de vapeur d'eau d'agent de gazéification sont installées. Un canal de charbon à gaz de charbon du front de taille (9) dans la veine de charbon du front de taille relie une pluralité de canaux de charbon de gazéification (10, 28). Une pluralité de fours de gazéification miniers sont disposés sur les deux côtés de chaque canal de charbon de gazéification. Un tuyau d'injection d'air (30) de chaque four de gazéification minier est relié à une conduite d'oxygène et à une conduite de vapeur d'eau dans le canal de charbon de ventilation. Après l'allumage d'un four électrique dans chaque four de gazéification minier, de l'oxygène et de la vapeur d'eau sont injectés à l'aide de la conduite d'injection de gaz pour produire du gaz de houille, et le gaz de houille circule séquentiellement dans le canal de charbon de gazéification, le canal de charbon à gaz de charbon du front de taille et un puits de forage de gaz de houille pour atteindre une conduite de terre. La présente mine est appropriée pour diverses conditions géologiques de la veine de charbon.
PCT/CN2022/070244 2021-06-15 2022-01-05 Mine de gaz de charbon et de gaz de houille WO2022262261A1 (fr)

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CN202110658095.6A CN113266314A (zh) 2021-06-15 2021-06-15 煤层气煤气矿井

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Publication number Priority date Publication date Assignee Title
CN112796730B (zh) * 2021-02-08 2022-04-12 太原理工大学 一种多水平跨采区地面钻井井网布设方法
CN113266314A (zh) * 2021-06-15 2021-08-17 柴兆喜 煤层气煤气矿井
CN115822536B (zh) * 2023-02-08 2023-05-23 太原理工大学 一种二氧化碳注入置换式煤层气采集装置及其使用方法

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GB762484A (en) * 1953-08-26 1956-11-28 Mini Of Fuel And Power Improvements relating to the underground gasification of coal
CN1197153A (zh) * 1998-05-29 1998-10-28 柴兆喜 于煤层直接生产煤气的矿井与生产方法
CN103670338A (zh) * 2012-09-21 2014-03-26 新奥气化采煤有限公司 一种煤层气与煤共采方法
CN105525903A (zh) * 2015-08-10 2016-04-27 柴兆喜 上向注气煤巷气化炉式气化矿井
CN110145293A (zh) * 2019-06-20 2019-08-20 中国矿业大学 一种多联产无井式煤炭地下气化方法
CN110273664A (zh) * 2018-03-14 2019-09-24 柴乔森 带循环瓦斯抽采泵的煤层所含瓦斯开采装置
CN113266314A (zh) * 2021-06-15 2021-08-17 柴兆喜 煤层气煤气矿井

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB762484A (en) * 1953-08-26 1956-11-28 Mini Of Fuel And Power Improvements relating to the underground gasification of coal
CN1197153A (zh) * 1998-05-29 1998-10-28 柴兆喜 于煤层直接生产煤气的矿井与生产方法
CN103670338A (zh) * 2012-09-21 2014-03-26 新奥气化采煤有限公司 一种煤层气与煤共采方法
CN105525903A (zh) * 2015-08-10 2016-04-27 柴兆喜 上向注气煤巷气化炉式气化矿井
CN110273664A (zh) * 2018-03-14 2019-09-24 柴乔森 带循环瓦斯抽采泵的煤层所含瓦斯开采装置
CN110145293A (zh) * 2019-06-20 2019-08-20 中国矿业大学 一种多联产无井式煤炭地下气化方法
CN113266314A (zh) * 2021-06-15 2021-08-17 柴兆喜 煤层气煤气矿井

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