石油勘探与开发 >

2019 , Vol. 46 >Issue 3: 433 - 442

DOI: https://doi.org/10.11698/PED.2019.03.02

油气勘探

煤系天然气的资源类型、形成分布与发展前景

  • 邹才能 ,
  • 杨智 ,
  • 黄士鹏 ,
  • 马锋 ,
  • 孙钦平 ,
  • 李富恒 ,
  • 潘松圻 ,
  • 田文广
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  • 中国石油勘探开发研究院,北京 100083
邹才能（1963-）,男,重庆江北人,博士,中国科学院院士,主要从事非常规油气地质学、常规油气地质理论与实践、新能源发展战略等研究工作。地址：北京市海淀区学院路20号,中国石油勘探开发研究院院办,邮政编码：100083。E-mail: zcn@petrochina.com.cn

收稿日期: 2019-01-16

  修回日期: 2019-04-17

  网络出版日期: 2019-05-25

基金资助

国家基础研究发展计划（973）项目（2014CB239000）

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Resource types, formation, distribution and prospects of coal-measure gas

  • ZOU Caineng ,
  • YANG Zhi ,
  • HUANG Shipeng ,
  • MA Feng ,
  • SUN Qinping ,
  • LI Fuheng ,
  • PAN Songqi ,
  • TIAN Wenguang
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  • Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, China

Received date: 2019-01-16

  Revised date: 2019-04-17

  Online published: 2019-05-25

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摘要

煤系天然气是煤系中煤、炭质泥页岩和暗色泥页岩生成的天然气,是天然气工业中极其重要的组成部分,具有巨量的资源规模,包括连续型煤层气、页岩气、致密气和圈闭型煤系气藏等资源类型。通过梳理国内外煤系天然气勘探开发进展,重点论述了圣胡安、苏拉特、西西伯利亚、鄂尔多斯盆地煤系气的形成与分布特征,明确煤系天然气是天然气供应的重要战略领域,主要取得3项认识：①欧亚东西向聚煤带和北美南北向聚煤带是全球两个主要聚煤区,晚石炭世—二叠纪、侏罗纪和晚白垩世末期—新近纪是3个主要聚煤期;②“连续型”和“圈闭型”是煤系天然气的两种主要成藏模式,提出生气强度大于10×108 m3/km2是形成煤系大气田的基本条件,揭示中高阶煤层气向斜富集、低阶煤层气源盖配置的成藏规律;③预测全球煤系天然气剩余资源潜力巨大,源外煤系气仍集中分布在中亚—俄罗斯、美国、加拿大等国家或地区,源内煤层气集中分布在12个主要国家,预测中国2030年煤系天然气产量有望超过1 000×108 m3,其中常规煤系气产量为（500~550）×108 m3,煤系致密气产量为（400~450）×108 m3,煤层气产量有望达到（150~200）×108 m3。图4表2参43

关键词： 煤系天然气; 煤层气; 致密气; 连续型; 圈闭型; 生气强度; 资源潜力; 聚煤期; 聚煤区

本文引用格式

邹才能 , 杨智 , 黄士鹏 , 马锋 , 孙钦平 , 李富恒 , 潘松圻 , 田文广 . 煤系天然气的资源类型、形成分布与发展前景[J]. 石油勘探与开发, 2019 , 46(3) : 433 -442 . DOI: 10.11698/PED.2019.03.02

Abstract

Coal-measure gas is the natural gas generated by coal, carbonaceous shale, and dark shale in coal-measure strata. It includes resources of continuous-type coalbed methane (CBM), shale gas and tight gas reservoirs, and trap-type coal-bearing gas reservoirs. Huge in resources, it is an important gas source in the natural gas industry. The formation and distribution characteristics of coal-measure gas in San Juan, Surat, West Siberia and Ordos basins are introduced in this paper. By reviewing the progress of exploration and development of coal-measure gas around the world, the coal-measure gas is confirmed as an important strategic option for gas supply. This understanding is mainly manifested in three aspects. First, globally, the Eurasian east-west coal-accumulation belt and North American north-south coal-accumulation belt are two major coal-accumulation areas in the world, and the Late Carboniferous-Permian, Jurassic and end of Late Cretaceous-Neogene are 3 main coal-accumulation periods. Second, continuous-type and trap-type are two main accumulation modes of coal-measure gas; it is proposed that the area with gas generation intensity of greater than 10×108 m3/km2 is essential for the formation of large coal-measure gas field, and the CBM generated by medium- to high-rank coal is usually enriched in syncline, while CBM generated by low-rank coal is likely to accumulate when the source rock and caprock are in good configuration. Third, it is predicted that coal-measure gas around the world has huge remaining resources, coal-measure gas outside source is concentrated in Central Asia-Russia, the United States, Canada and other countries/regions, while CBM inside source is largely concentrated in 12 countries. The production of coal-measure gas in China is expected to exceed 1000×108 m3 by 2030, including (500-550)×108 m3 conventional coal-measure gas, (400-450)×108 m3 coal-measure tight gas, and (150-200)×108 m3 CBM.

Key words： coal-measure gas (CMG); coalbed methane (CBM); tight gas; continuous-type; trap-type; gas generation intensity; resource potential; coal-accumulation period; coal-accumulation area

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