摘要
石油与天然气在沉积岩中发生了运移、聚集事件,必然影响沉积岩的成岩环境,引起成岩矿物发生反应。采用粘土X衍射、气体成分、包裹体分析等手段,结合莺琼盆地不同地质背景条件,分析粘土矿物伊/蒙混层异常演化的影响因素。研究认为,莺琼盆地伊/蒙混层异常演化与天然气(烃气和CO2)热流体的运移和聚集有关,不同演化方式反映热流体运移路径、断层构造差异,而且气藏类型大小与伊/蒙混层演化方式有关。
Migration and accumulation of oil and gas in sedimentary rock will impact the change of diagenetic environmentof sedimentary rocks and will also lead diagenetic minerals reaction.Adopting clay X–ray diffractiontest,gas composition,and inclusion,combining with the different geological conditions of Ying–Qiong Basins,thefactors which affect the abnormal evolution of illite/smectite interstratified radio are analyzed.The study shows theabnormal evolution of illite/smectite in Ying–Qiong Basin is related to the migration and accumulation of hydrothermalfluid(hydrocarbon and carbon dioxide).Different evolutionary model of illite/smectite reflects the differenceof migration path and difference fault structure of hydrothermal fluid,and is also related to the type and size of gaspool.
出处
《西南石油大学学报（自然科学版）》
CAS
CSCD
北大核心
2011年第3期74-78,194,共5页
Journal of Southwest Petroleum University(Science & Technology Edition)
