安岳气田天然气藏中伴生氦气成藏机理初探
靳科科
（山西蓝焰煤层气工程研究有限责任公司，山西 晋城 048000）
摘要： 为探究常规天然气藏中伴生He 的成藏特征，提高中国He 勘探开发水平，以四川盆地中部安岳气田为例，对
研究区及邻近气田烃源岩及基底岩性特征、稀有气体组分及同位素值进行了对比研究。结果表明，安岳气田伴生He 主
要来源于筇竹寺组泥页岩中的放射性U 元素、Th 元素，成藏过程受地层水、构造抬升和常规天然气运聚的综合影响。
关键词： 天然气藏；He；成藏机理
中图分类号： P618.130.2     文献标志码： A     文章编号： 2095-0802-(2022)11-0022-05
Associated Helium Forming Mechanism in Natural Gas Reservoir of Anyue Gas Field
JIN Keke
(Shanxi Lanyan Coalbed Methane Engineering Research Co., Ltd., Jincheng 048000, Shanxi, China)
Abstract: In order to explore the associated He forming characteristics in natural gas reservoir and improve the level of He
exploration and development in China, taking Anyue gas field in the central Sichuan Basin as an example, the characteristics of
source rocks, basement lithology and rare gas components and isotope values in the study area and adjacent gas fields were
compared and studied. The results show that the associated He in Anyue gas field mainly comes from the radioactive decay of U
and Th in the shale of Qiongzhusi Formation, and its reservoir forming process is comprehensively affected by formation water,
tectonic uplift and natural gas migration.

Key words: natural gas reservoir; He; reservoir forming mechanism