沁水盆地郑庄区块残存煤层气的埋深和构造综合控气模式分析

董良; 张琨; 刘会虎; 马萌芽; 徐宏杰; 方辉煌

doi:10.13568/j.cnki.651094.651316.2024.02.23.0001

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沁水盆地郑庄区块残存煤层气的埋深和构造综合控气模式分析

生态·资源·环境·油气生产加工专题 | 更新时间：2026-01-21

- 沁水盆地郑庄区块残存煤层气的埋深和构造综合控气模式分析
- 沁水盆地郑庄区块残存煤层气的埋深和构造综合控气模式分析
- 新疆大学学报（自然科学版中英文） 2024年41卷第4期页码：467-478
- 作者机构：
  
  1. 安徽理工大学地球与环境学院
  2. 安徽理工大学深部煤矿采动响应与灾害防控国家重点实验室
  3. 安徽理工大学煤炭安全精准开采国家地方联合工程研究中心
- 作者简介：
- 基金信息：
  
  国家自然科学基金“深部不可采煤层CO_2地质存储和垂向运移过程中顶板盖层封闭性演化特征与机理研究”（42202200）,“废弃矿井残存煤层二氧化碳强化煤层气开采过程CO_2吸附-游离封存机理”（42277483）;安徽省科技重大专项“废弃矿井未采煤层CO_2封存驱替CH_4技术及应用”（202203a07020010）
- DOI：10.13568/j.cnki.651094.651316.2024.02.23.0001
  中图分类号： P618.13
- 纸质出版：2024
- 稿件说明：
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[1]董良,张琨,刘会虎,等.沁水盆地郑庄区块残存煤层气的埋深和构造综合控气模式分析[J].新疆大学学报(自然科学版中英文),2024,41(04):467-478.
[1]董良,张琨,刘会虎,等.沁水盆地郑庄区块残存煤层气的埋深和构造综合控气模式分析[J].新疆大学学报(自然科学版中英文),2024,41(04):467-478. DOI： 10.13568/j.cnki.651094.651316.2024.02.23.0001.

DOI：10.13568/j.cnki.651094.651316.2024.02.23.0001.

摘要

煤层含气量是影响煤层气勘探开发的重要条件．实际生产中，煤储层地质条件十分复杂，含气量往往受多个因素综合控制．以沁水盆地郑庄区块3#煤层为研究对象，分析其含气量分布特征及控气地质因素，得到以下结论：郑庄区块煤层含气量较高，其分布特征受煤层埋深和构造条件综合作用；在构造条件不发育地区，煤层埋深通过改变储层温度和压力控制煤层气的产生和保存，随着埋深增加，煤层含气量先增加后降低，逐渐由强压力敏感性转变为强温度敏感性；在构造发育区域，煤层含气量受埋深和构造条件综合作用，构造条件通过改变煤层埋深和储层封闭能力引起煤层气的运移逸散，褶皱和断层作用改变煤层埋深，为煤层气运移提供驱动力，伴生的节理是煤层气的运移通道，其走向和密度控制煤层气的运移方向和程度，运移目标区的埋深等储层特征影响煤层气的最终保存．

Abstract

Coal seam gas content is an important condition affecting the exploration and development of coalbed methane. In actual production

the geological conditions of coal reservoirs are very complex

and the gas content is often controlled by multiple factors. This article takes the 3~# coal seam in the Zhengzhuang block of the Qinshui Basin as the research object

analyzes its gas content distribution characteristics and gas control geological factors

and the following conclusions are obtained: The gas content of the coal seam in Zhengzhuang block is high

and its distribution characteristics are affected by the comprehensive effect of coal seam burial depth and structural conditions. In areas where tectonism conditions are not developed

the coal seam burial depth controls the generation and preservation of coalbed methane by changing the reservoir temperature and pressure

and with the increase of burial depth

the coal seam gas content increases first and then decreases

and gradually changes from strong pressure sensitivity to strong temperature sensitivity. In the tectonism development area

the coal seam gas content is affected by the comprehensive effect of buried depth and tectonism conditions

the tectonism conditions cause the migration and escape of coalbed methane by changing the buried depth of the coal seam and the sealing ability of the reservoir

and the folding and fault action change the buried depth of the coal seam

which provides the driving force for the migration of coalbed methane

and the associated joints are the migration channels of coalbed methane

and its trend and density control the direction and degree of coalbed methane migration

and the reservoir characteristics such as the buried depth of the migration target area affect the final preservation of coalbed methane.

关键词

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