新疆地区中—低阶煤煤层气地质特征及勘探思路——以准噶尔盆地南缘硫磺沟区块为例

涂志民; 车延前; 李小军; 任毅军; 常新龙; 李鹏

doi:10.16152/j.cnki.xdxbzr.2025-05-018

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新疆地区中—低阶煤煤层气地质特征及勘探思路——以准噶尔盆地南缘硫磺沟区块为例

地球科学 | 更新时间：2025-10-31

- 新疆地区中—低阶煤煤层气地质特征及勘探思路——以准噶尔盆地南缘硫磺沟区块为例
- Geological characteristics and exploration ideas of middle-low rank coalbed methane in Xinjiang Region——A case study of Liuhuanggou Block in southern Junggar Basin
- 西北大学学报（自然科学版） 2025年55卷第5期页码：1169-1180
- 作者机构：
  
  中石油煤层气有限责任公司，北京　100028
- 作者简介：
  
  涂志民，男，高级工程师，从事煤层气勘探研究，tuzhimin@petrochina.com.cn。
- 基金信息：
  
  国家重大基金项目(41390451);中国石油前瞻性基础性技术攻关项目(2021DJ2306-006);中石油煤层气有限责任公司科学研究与技术开发项目(2022-KJ-39)
- DOI：10.16152/j.cnki.xdxbzr.2025-05-018
  中图分类号： P618.11
- 收稿：2024-12-14，
  
  纸质出版：2025-10-25
- 稿件说明：
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涂志民, 车延前, 李小军, 等. 新疆地区中—低阶煤煤层气地质特征及勘探思路——以准噶尔盆地南缘硫磺沟区块为例[J]. 西北大学学报（自然科学版）, 2025,55(5):1169-1180.

TU Zhimin, CHE Yanqian, LI Xiaojun, et al. Geological characteristics and exploration ideas of middle-low rank coalbed methane in Xinjiang Region——A case study of Liuhuanggou Block in southern Junggar Basin[J]. Journal of northwest university (natural science edition), 2025, 55(5): 1169-1180.
涂志民, 车延前, 李小军, 等. 新疆地区中—低阶煤煤层气地质特征及勘探思路——以准噶尔盆地南缘硫磺沟区块为例[J]. 西北大学学报（自然科学版）, 2025,55(5):1169-1180. DOI： 10.16152/j.cnki.xdxbzr.2025-05-018.

TU Zhimin, CHE Yanqian, LI Xiaojun, et al. Geological characteristics and exploration ideas of middle-low rank coalbed methane in Xinjiang Region——A case study of Liuhuanggou Block in southern Junggar Basin[J]. Journal of northwest university (natural science edition), 2025, 55(5): 1169-1180. DOI： 10.16152/j.cnki.xdxbzr.2025-05-018.

摘要

新疆地区煤层气资源量丰富，2 000 m深以浅煤层气资源量高达7.51×10

，约占中国煤层气资源总量的25.0%。为了进一步明确该区煤层气资源的地质特征及富集规律，以准噶尔盆地南缘硫磺沟区块中—低阶煤层为研究对象，从含气量和产能的主控要素入手，探究新疆地区中—低阶煤层气的富集特征，明确勘探思路。研究发现，在以中—低阶煤层为主的浅层勘探区域，构造复杂，煤层厚度大，目的层段煤层单层厚度大于10 m，平均孔隙度为7.3%~9.2%，平均渗透率为（2.4~2.64）×10

－3

μm

，含气量差异较大（0.02~10 m

/t）；目的层以生物成因煤层气为主，埋深较浅，水动力强，含气量低，导致勘探开发效果不理想。研究后认为，新疆地区中—低阶煤层气的勘探要充分结合煤层气的成因类型、构造、水文地质及埋深条件，以含气量为主要参考指标，选择构造相对较稳定、位于弱径流-滞留区并且煤层气成因为混合成因、热成因的区域，是勘探取得成效的关键。

Abstract

The shallow coalbed methane resources above 2 000 m in Xinjiang reach 7.51×10

accounting for approximately 25.0% of the total coalbed methane resources in the China. In order to further clarify the geological characteristics and enrichment rules of coalbed methane resources in this area

taking the mid-tolow-rank coal seams in the Liuhuanggou block on the southern margin of the Junggar Basin as the research object

a comprehensive geological analysis of preliminary exploration data was carried out to further deepen the mid-to-low-rank coal seams in Xinjiang. The enrichment characteristics of coalbed methane clarify exploration ideas. This study has obtained the following three understandings and achievements: In the shallow exploration area dominated by medium-low rank coal seams

the structure is complex and the coal seam thickness is large. The single layer thickness of the coal seam in the target interval is greater

than 10 m

the average porosity is 7.3~9.2%

and the average permeability is 2.4~2.64 mD. The gas content is quite different

ranging from 0.02 to 10.00 m

/t. The target layer is mainly biogenic coalbed methane

with shallow buried depth

strong hydrodynamic action

low gas content

as a result of unsatisfactory exploration and development. In the next step

the exploration of medium-low-rank coalbed methane in Xinjiang should fully combine the genetic type

structure

hydrogeology and burial depth conditions of coalbed methane

take gas content as the main reference index

and select relatively stable structures located in weak runoff-retention areas and areas with mixed and thermal origin of coalbed methane are the key to achieving commercial results.

关键词

Keywords

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