A major transformation from coalbed methane to coal-rock gas leading the "coal-rock gas revolution"

焦方正; 赵群; 肖宇航; 刘丹

doi:10.7623/syxb202512001

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A major transformation from coalbed methane to coal-rock gas leading the "coal-rock gas revolution"

更新时间：2026-02-02

- A major transformation from coalbed methane to coal-rock gas leading the "coal-rock gas revolution"
- ACTA PETROLEI SINICA Vol. 46, Issue 12, Pages: 2211-2225(2025)
- 作者机构：
  
  1. 中国石油学会,北京,100724
  2. 中国石油勘探开发研究院,北京,100083
  3. 中国石油天然气集团有限公司煤岩气重点实验室,河北,廊坊,065007
- 作者简介：
- 基金信息：
- DOI：10.7623/syxb202512001
  CLC： TE132.2
- Published Online：09 January 2026，
  
  Published：2025
- 稿件说明：
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焦方正, 赵群, 肖宇航, 刘丹. 煤层气到煤岩气的"蝶变"引领"煤岩气革命"[J]. 石油学报, 2025, 46(12): 2211-2225.

焦方正, 赵群, 肖宇航, et al. A major transformation from coalbed methane to coal-rock gas leading the "coal-rock gas revolution"[J]. ACTA PETROLEI SINICA, 2025, 46(12): 2211-2225.
焦方正, 赵群, 肖宇航, 刘丹. 煤层气到煤岩气的"蝶变"引领"煤岩气革命"[J]. 石油学报, 2025, 46(12): 2211-2225. DOI： 10.7623/syxb202512001.

焦方正, 赵群, 肖宇航, et al. A major transformation from coalbed methane to coal-rock gas leading the "coal-rock gas revolution"[J]. ACTA PETROLEI SINICA, 2025, 46(12): 2211-2225. DOI： 10.7623/syxb202512001.

摘要

中国在深层煤岩气勘探领域取得重大突破

实现了从传统浅部煤层气向深层煤岩气的战略性转变。煤岩作为优质烃源岩

具有有机质丰度高、全演化过程持续生气、储集性能强等显著特征

可形成吸附态与游离态共存的煤岩气藏。基于"煤系全油气系统"新理论

揭示了煤岩气在煤系地层中的成藏机制与资源潜力。初步评价表明

中国埋深大于1 500 m的深层煤岩气资源量超过100× 10

约为常规天然气资源的2倍

具备形成超级大气田的资源基础。鄂尔多斯盆地大吉区块通过"水平井+体积压裂"技术实现了规模化开发

单井的平均日产量达12×10

累计探明储量达1 452×10

展现了良好的开发前景。目前

中国已形成实验测试、优快钻完井、压裂改造和体积开发等关键技术体系

支撑了煤岩气的高效开发。然而

煤岩气的发展仍面临理论体系不完善、沉积演化机制不明、成藏机理研究不足等挑战。为此

建议系统开展全国资源评价

加强重点领域勘探

优化矿业权管理

推动理论技术创新与示范应用

为实现天然气增储上产

提升能源的自主保障能力提供战略支撑。

Abstract

China has achieved major breakthroughs in the exploration of deep coal-rock gas

marking a strategic shift from traditional shallow coalbed methane to deep coal-rock gas. As a high-quality source rock

coal-rock is characterized by high organic matter abundance

continuous gas generation throughout its entire evolution process

and strong storage capacity

which is conducive to the formation of coal-rock gas reservoir where adsorbed and free gases coexist. Based on the new theo

ry of "whole petroleum system of coal measures"

this paper reveals the accumulation mechanism and resource potential of coal-rock gas. The preliminary evaluations indicate that the deep coal-rock gas resources with a burial depth greater than 1 500 meters exceed 100×10

in China

approximately twice that of conventional natural gas resources

providing a resource foundation for the formation of super-large gas fields. In Daji block of Ordos Basin

large-scale development has been achieved through the application of horizontal well and volumetric fracturing technologies

with an average daily production of 12×10

per well and cumulative proven reserves of 1 452×10

demonstrating promising development prospects. At present

China has established a series of key technological systems

including experimental testing

optimized drilling and completion

fracturing stimulation

and volume development

which support the efficient extraction of coal-rock gas. However

challenges still exist in coal-rock gas development

such as incomplete theoretical system

unclear sedimentary evolution mechanisms

and insufficient research on accumulation mechanisms. To address these issues

it is suggested to systematically conduct nationwide resource assessments

strengthen exploration in key areas

optimize mining right management

and promote theoretical innovation and demonstration applications. These efforts will provide strategic support for increasing natural gas reserves and production and enhancing China’s energy self-sufficiency capacity.

关键词

Keywords

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