利用天然气的组成、碳同位素和储集层沥青的生物标志化合物分布的综合研究.并根据烃类运移的相态原理,表明磨溪气田雷一~1气藏的天然气主要来源于上二叠统的煤系烃源岩,及其高成熟天然气是通过断层垂向运移至龙女古构造,然后经过横向运移至磨溪构造聚集成藏,在横向运移过程中,地层水的溶解使天然气中的乙烷、丙烷的含量发生倒转。 Based on the study of the composition of natural gas, the distribution of carbon isotopes and the distribution of biomarkers in reservoir bitumen, and according to the phase principle of hydrocarbon migration, it is shown that natural gas in Leiyi ~ 1 gas field in Moxi gas field is mainly derived from the Upper Permian The coal measure source rocks and their high mature natural gas migrate vertically to the Lungu Paleozoic through faults and then migrate laterally to the Moxi structure to accumulate and accumulate. During the horizontal migration, formation water dissolves The natural gas in the ethane, propane content reversed.