摘要
中国煤层气资源种类齐全且极为丰富可靠,具有形成年产千亿立方米级新兴大产业的资源基础。在国家的大力支持下,经过30年的艰苦努力,中国煤层气勘探开发取得重大进展,形成了年产百亿立方米级的煤层气产业。但距年产千亿立方米级的大产业目标相距太远,且煤层气连续3个五年计划没有实现预期目标,同时也失去了明确的发展方向,中国煤层气产业发展处于前所未有的困境。在中国亟需大力发展的天然气产业中煤层气贡献微薄,其根本原因是30年来国内外所建立的煤层气勘探开发理论与技术不能完全体现煤层组成、孔隙结构特征与煤层气以吸附态为主的赋存状态,现有技术不完全切合煤层气的产气机理,不具备普适性。在深入分析煤层气产气机理的基础上,提出了将煤矿瓦斯学科与天然气开发学科相融合,建立起科学、实用的煤层气勘探开发理论与技术,并提出4类煤层气资源都可据此建立起科学、实用的理论与技术,以实现高效勘探、有效开发。进一步从煤层气资源状况、油气勘探开发技术进步、煤层甲烷赋存、运移规律研究进展等方面论述了中国建成千亿立方米级煤层气大产业的可能性及实施路径。煤层气大产业需要依靠煤炭和油气两大行业交叉融合,加强基础研究,从源头创立适用于各类煤层气藏实现高效勘探、有效开发的理论与技术体系,产生一个新的学科(方向),形成一个新的生产、技术、行业领域,建成一个大产业的路线,从而实现"由煤层气勘探开发原创理论与技术支撑形成一个煤层气新兴大产业的发展战略",确保中国年产千亿立方米级煤层气大产业尽快形成,从而大幅度降低中国天然气对外依存度,并力争逐步实现中国天然气自给自足。
China has a complete range of coalbed methane(CBM)resources,which are extremely rich and relatively reliable.The resource foundation can completely form an emerging industry with an annual gas production of hundreds of billions of cubic meters.With strong national support,after 30 years of arduous efforts,China has made significant progresses in the exploration and development of coalbed methane,forming an industry with an annual production of 10 billion cubic meters.However,this is too far from the goal of 100 billion cubic meters of coalbed methane annually,and the national task has not been completed for three consecutive Five-year plans.At the same time,China CBM industry has lost its clear development direction.Only a small contribution can be made to the urgently needed natural gas industry in China.The fundamental reason is that the theory and technology of CBM exploration and development established domestically and internationally over the past 30 years can not fully reflect the composition and pore structure characteristics of coal,as well as the occurrence state of methane mainly in an adsorbed state,which is not fully in line with the mechanism of CBM production,of which applicability is too small to be universal.On the basis of in-depth analysis of the mechanism of coalbed methane production,it is proposed that only the integration of coal mine gas and natural gas development disciplines can establish scientific and practical theories and technologies for CBM exploration and development.Then,four types of CBM resources are divided.Moreover,each CBM resource can be established with scientific and practical theories and technologies to achieve efficient exploration and effective development.This article discusses the possibility and implementation path of building a 100 billion-cubic-meter-scale CBM industry in China from aspects such as the status of CBM resources,progress in oil and gas exploration and development technology,occurrence and migration laws of methane in coal.This article proposes to rely on the cross integration of coal and oil and gas industries,strengthen basic research,establish a theoretical and technical system suitable for efficient exploration and effective development of various types of coalbed methane reservoirs,generate a new discipline(direction),form a new production,technology,and industry field,and build a path of a large industry,To achieve the development strategy of forming an emerging coalbed methane industry supported by original theories and technologies of coalbed methane exploration and development,and to ensure the rapid formation of China's annual production of a 100 billion-cubic-meter-scale CBM industry,in order to significantly reduce China's dependence on external natural gas.
作者
罗平亚
朱苏阳
Luo Pingya;Zhu Suyang(National Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Sichuan Chengdu 610500,China)
出处
《石油学报》
EI
CAS
CSCD
北大核心
2023年第11期1755-1763,共9页
Acta Petrolei Sinica
基金
中国工程院战略研究与咨询项目(2021-XY-24)
国家自然科学基金青年科学基金项目(No.52104036)资助。
关键词
煤层气
千亿立方米级
资源禀赋
瓶颈问题
技术基础
攻关方向
coalbed methane
100 billion-cubic-meter-scale
resource endowment
bottleneck problem
technological base
breakthrough direction