New exploration fields and resource potential of tight sandstone gas and coalbed methane in Turpan-Hami Basin

Li Jianzhong; Chen Xuan; Gong Deyu; Lin Lin; Liu Juntian; Zhang Hua; Lin Tong; Wang Bo; Wang Jie

doi:10.7623/syxb202501008

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New exploration fields and resource potential of tight sandstone gas and coalbed methane in Turpan-Hami Basin

更新时间：2025-10-10

- New exploration fields and resource potential of tight sandstone gas and coalbed methane in Turpan-Hami Basin
- ACTA PETROLEI SINICA Vol. 46, Issue 1, Pages: 104-117(2025)
- 作者机构：
  
  1. 中国石油吐哈油田公司,新疆,哈密,839009
  2. 中国石油勘探开发研究院,北京,100083
  3. 中国石油杭州地质研究院,浙江,杭州,310023
- 作者简介：
- 基金信息：
- DOI：10.7623/syxb202501008
  CLC： TE132.2
- Published Online：15 February 2025，
  
  Published：2025
- 稿件说明：
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李建忠, 陈旋, 龚德瑜, 林霖, 刘俊田, 张华, 林潼, 王波, 王杰. 吐哈盆地致密砂岩气及煤层气勘探新领域与资源潜力[J]. 石油学报, 2025, 46(1): 104-117,172.

Li Jianzhong, Chen Xuan, Gong Deyu, et al. New exploration fields and resource potential of tight sandstone gas and coalbed methane in Turpan-Hami Basin[J]. Acta petrolei sinica, 2025, 46(1): 104-117.
李建忠, 陈旋, 龚德瑜, 林霖, 刘俊田, 张华, 林潼, 王波, 王杰. 吐哈盆地致密砂岩气及煤层气勘探新领域与资源潜力[J]. 石油学报, 2025, 46(1): 104-117,172. DOI： 10.7623/syxb202501008.

Li Jianzhong, Chen Xuan, Gong Deyu, et al. New exploration fields and resource potential of tight sandstone gas and coalbed methane in Turpan-Hami Basin[J]. Acta petrolei sinica, 2025, 46(1): 104-117. DOI： 10.7623/syxb202501008.

摘要

吐哈盆地剩余天然气资源中

以致密砂岩气和煤层气为代表的致密气占比达89.08 %

是盆地下一步寻找规模储量的重点领域

目前研究程度较低。为明确吐哈盆地致密气勘探前景

系统分析和总结侏罗系水西沟群致密砂岩气和煤层气的成烃、成储和成藏条件

评价其资源潜力

并指明了下一步勘探方向。吐哈盆地主要发育近源构造气藏、斜坡低饱和岩性气藏、源内致密砂岩气藏、远源煤层气藏和源内煤层气藏5类致密气藏

油气充注主要发生在中侏罗世—早白垩世晚期。盆地致密砂岩气的预测总资源量近6 800×10

煤层气的预测总资源量约为2.4×10

。吐哈盆地致密砂岩气藏的分布主要受富烃源灶、有利相带、裂缝发育程度、盖层封闭条件和构造稳定性等因素共同控制;煤层气的成藏主要受控于煤层分布、煤岩成熟度、储层物性和盖层条件等。优选胜北洼陷北洼槽、丘东洼陷和小草湖洼陷为盆地致密砂岩气勘探有利区

优选台北凹陷北部山前带、丘东洼陷温吉桑构造带和红台—疙瘩台构造带为煤层气勘探有利区。

Abstract

In the remaining gas resources in Turpan-Hami Basin

the tight gas represented by tight sandstone gas and coalbed methane accounts for 89.08 %

which is the critical field to search for large-scale reserves in the next step

but the research degree is low at present. In order to clarify the exploration prospect of tight gas in Turpan-Hami Basin

the formation conditions of hydrocarbon

reservoir

and accumulation of tight sandstone gas and coalbed methane in the Jurassic Shuixigou Group are systematically sorted out

and summarized

their resource potential is estimated

and the next exploration direction is pointed out. There are five types of tight gas reservoirs in Turpan-Hami Basin

including near-source structural gas reservoirs

low-saturated lithologic gas reservoirs at the slope

in-source tight sandstone gas reservoirs

far-source coalbed methane reservoirs and in-source coalbed methane reservoirs. The oil and gas charging mainly occurred in Middle Jurassic to Late Early Cretaceous. The predicted total resource of tight sandstone gas in Turpan-Hami Basin is approximately 6 800×10

and the predicted total coal gas resources are approximately 2.4×10

. Rich hydrocarbon kitchens

favorable facies zones

fracture development degree

cap seal conditions and structural stability mainly control the distribution of tight sandstone gas reservoirs in Turpan-Hami Basin. The main controlling factors of coalbed methane accumulation include coal seam distribution

coal maturity

reservoir physical property and cap seal conditions. Three favorable exploration areas of tight sandstone gas

i.e.

north Shengbei subsag

Qiudong subsag

and Xiaocaohu subsag

are selected. Three favorable areas for coalbed methane exploration were selected

i.e.

the northern piedmont belt of Taibei sag

the Wenjisang structure zone and the Hongtai-Gedatai structure zone of Qiudong subsag.

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