摘要
对库车坳陷大北1煤成大气田白垩系和古近系砂岩储层样品中流体包裹体进行了透射光和荧光显微镜观察,测试了与烃类包裹体共生的盐水包裹体均一温度。白垩系储层样品包裹体均一温度主要在120℃～140℃之间,古近系储层样品主要在100℃～120℃之间。结合埋藏史和古地温史,运用包裹体均一温度,研究了大北1煤成大气田的成藏期。研究认为,大北1煤成大气田为一次成藏,主要成藏时间为距今3～1.5Ma,这与地质条件相吻合。
Fluid inclusion of Paleogene System and Cretaceous system sandstone reservoir in Dabei 1 Coal-derived large gasfield in Kuqa depression was observed with the transmission light and fluorescence,and aqueous inclusion living with hydrocarbon inclusions homogenization temperature was determined.Cretaceous system homogenization temperature mainly distributes between 120℃ and 140℃,and Paleogene is between 100℃ and 120℃.The homogenization temperature of fluid inclusions combined with the burial history and paleotemperature history are used to study the period of Da bei 1 Coal-derived large gasfield.The results indicate that the research area experienced pool charging for many times,but accumulated for one.The reservoir-forming period was about 3.0～1.5Ma years ago,which agrees quite well with the geological conditions.
出处
《宿州学院学报》
2013年第1期86-90,共5页
Journal of Suzhou University
基金
国家油气科技重大专项子课题"主要含气盆地典型大气田成藏时期研究"(2011ZX05007-02)
关键词
煤成大气田
大北1
流体包裹体
均一温度
成藏期
库车坳陷
coal-derived large gasfield
Dabei 1
fluid Inclusion
homogenization temperature
reservoir-forming time
Kuqa depression
