摘要
准噶尔盆地南缘蕴含丰富的油气资源,该区域天然气的来源存在争议.在大量资料统计和实验分析工作基础上,对天然气的成因进行了分析.研究认为：呼图壁气田、霍尔果斯油气田的天然气均来自侏罗纪煤层烃源岩,为同源、同演化阶段的产物;天然气中的甲烷氢同位素较重,且分布集中,属陆相淡水湖沉积环境;呼图壁气田的天然气属于成熟—高成熟煤型气,霍尔果斯油气田的天然气属于成熟煤型气.
The southern margin of Junggar Basin is rich in oil and gas resources, but the source of the gas in this area has been a controversial problem for a long time. On the bases of the numerous data statistics and experimental analysis, the geneses of the natural gas are analyzed. The researches show that the natural gases of Hutubi Gasfield and Horgas Oil/gas field are both from the Jurassic coal source rocks, belonging to the products of the consanguinity and co-evolution; the methane hydrogen isotope in the natural gas is heavy and numerous, and moreover distributed intensively, belonging to the terrestrial fresh-water lake sedimentary environment; the natural gas in Hutubi Gas- field belongs to the maturity-over maturity coal-type gas, the natural gas in Horgas Oil/gas field belongs to the ma- turity coal-type gas.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2014年第6期31-35,共5页
Petroleum Geology & Oilfield Development in Daqing
基金
“十二五”国家专项“中国主要含煤盆地气源岩地球化学特征及分布研究”(20112X05007-01)
关键词
准噶尔盆地南缘
天然气
地球化学参数
成因分析
甲烷氢同位素
庚烷值
the southern margin of Junggar Basin
natural gas
geochemical parameter
genetic analysis
methane isotope
heptane value
