Study of Inhomogeneous Fluid Inclusion in the Hinterland of Junggar Basin
详细信息
- 责任者：Zhou Yongshui (State Key Laboratory of Petroleum Resources and Prospecting ; China University of Petroleum ; Beijing 102249 ; China) ; Qiu Nansheng
- 刊名：Geoscience
- 出版年：2013
- 卷期：27(5)
- 关键词：有机包裹体 ; organic inclusion ; 砂岩储集层 ; sandstone reservoirs ; 准噶尔盆地 ; Junggar Basin
- 页码：p.1202-1210
- 图表：4 illus., 2 tables, 28 refs.
- 分类号：1003
- issnNo：ISSN1000-8527
- isbnNo：CN11-2035/P
摘要
Previous studies indicate that the homogenization temperature of many fluid inclusions from the Lower Jurassic J 1 s and J 1 b sandstone samples in the hinterland of Junggar Basin are much higher than the maximum temperature that the formation experienced.In this paper,it is confirmed that three-phases inclusions trapped from oil-water heterogeneous environment are predominant in the abnormal inclusions.Gas,liquid oil and liquid water can be observed in these inclusions by microscope.Oil releases yellow fluorescence while gas and water do not under the UV-light.These inclusions,rich in J 1 s and J 1 b of many wells,are mainly discovered in the healed cracks,corroded hollows and secondary outgrowth cementation of rock particles.And they usually associated with gaseous hydrocarbon inclusions,salt water inclusions with gaseous hydrocarbon,salt water inclusions and liquid inclusions.Their homogeneous temperatures range from 130 to 200 ℃ without obvious law.The abnormal fluid inclusions were trapped in the moved oil-water transitional zone during the secondary migration and adjustment of oil and gas in Eocene-Miocene.The trapped time of these inclusions were revealed to be about 38-17 Ma based on the homogenization temperatures of salt water inclusions and the burial and thermal histories of the samples.In addition,the trapped time become older with increase of depth and represent the time the paleo-oil-water contact reached some depth.