中国煤炭与煤层气协同勘查开发现状与发展趋势
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1.西安科技大学地质与环境学院;2.中国煤炭地质总局勘查研究总院;3.中国煤炭地质总局碳中和研究院

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The current situation and development trend of coordinated exploration and development of coal and coalbed methane in China
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1.College of Geology and Environment, Xi''an University of Science and Technology,Xi''an;2.General Prospecting Institute,China National Administration of Coal Geology;3.Carbon Neutralization Research Institute,China National Administration of Coal Geology,Beijing

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    摘要:

    【研究目的】煤炭是我国的主体能源,煤层气既是煤矿生产的重要危险源,也是一种重要的清洁能源。煤层气主要成分是甲烷,甲烷的温室效应是等体积二氧化碳的80-120倍,大量排空将对大气环境产生严重影响。本文通过我国煤与煤层气勘查开发利用现状分析和技术研究,论证煤与煤层气协同勘查开发的必要性和可行性,实现煤层气变灾害为资源,进而提出我国新的煤与煤层气协同勘查的技术途径。【研究方法】本文采用资料和文献分析,能源供需、技术现状和发展趋势论证等方法,研判煤与煤层气协同勘查开发利用技术方向和对策。【研究成果】科学论证了实施煤与煤层气协同勘查开发利用的必要性和可行性,揭示其技术瓶颈,提出了煤与煤层气协同勘查技术体系,构建了煤与煤层气协同开发新模式及关键技术,探索了煤、煤层气与风光新能源协同开发利用的新构想,提出了今后煤与煤层气协同勘查开发利用及技术发展建议。【结论】实施煤与煤层气协同勘查开发非常必要和十分迫切;我国煤层低渗透率、低储层压力低、低含气饱和度和复杂的地质和开采技术条件,决定了以煤与煤层气协同勘查开发为主,地面抽采为辅的煤层气开发利用方式;应深化煤与煤层气耦合成矿成藏规律研究,建立煤与煤层气协同勘查开发利用关键技术与CCUS技术相结合的技术体系。

    Abstract:

    [Objective] Coal is the main energy source in China. Coalbed methane is one of important and dangerous fountainheads of coal mine production process and also an important clean energy. The main component of coalbed methane is methane, the greenhouse effect of methane is 80-120 times as the same volume of carbon dioxide. Massive emission of methane will seriously affect the quality of environment. Through analyzing the coordinated exploration of coal and coalbed methane patterns and technologies in China, this paper proves the necessity and flexibility of the coordinated exploration of coal and coalbed methane. After that, new technical approach to the cooperative exploration of coal and coalbed methane in China was proposed. [Methods] Based on the relative documents and literature, This paper analyzes and discusses the energy supply and demand, current situation and development trend of theories and technologies for coal and coalbed methane co-mining in China. At last, the development and utilization of coal and coalbed methane were studied and judged. [Results] The necessity and feasibility of implementing the coordinated exploration and development of coal and coalbed methane were scientifically validated and the main bottlenecks of coordinated exploration and development of coal and coalbed methane in China were revealed. Then this paper has established coordinated exploration and development of coal and coalbed methane technique system. At last, the new development mode, key technologies and development proposals of coordinated exploration and development of coal and coalbed methane were put forward. [Conclusions] It is very necessary and urgent to implement the coordinated exploration and development of coal and coalbed methane. The features of coalbed methane reservoir (low permeability, low reservoir pressure, low gas saturation), complex geological conditions and mining technical determined that the exploration and development mode of coalbed methane in China is dominated by cooperative exploration and development of coal and coalbed methane, supplemented by surface pumping. Under the carbon peaking and carbon neutrality goals. It is necessary to deepen the research on the law of reservoir forming of coal and coalbed methane coupling mineralization and accumulation, and establish a technical system combing the key technologies of coal and coalbed methane cooperative exploration, development and utilization with CCUS technology.

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  • 收稿日期:2022-11-22
  • 最后修改日期:2023-02-25
  • 录用日期:2023-03-01
  • 在线发布日期: 2023-03-01
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