Bitumen Genesis and Hydrocarbon Accumulation Pattern of Well Guizhong-1 in Guizhong Depression

• 责任者：He Xunyun (Hangzhou Research Institute of Petroleum Geology ; PetroChina ; Hangzhou 310023 ; China) ; Yao Genshun
• 刊名：Acta Petrolei Sinica
• 出版年：2010
• 卷期：31(3)
• 关键词：沥青 ; asphalt ; 油气藏形成 ; reservoir formation ; 广西 ; Guangxi
• 页码：p.420-425,431
• 图表：6 illus., 22 refs.
• 分类号：1003
• issnNo：ISSN0253-2697
• isbnNo：CN11-2128/TE

The reservoir solid bitumen of Guizhong-1 Well in Guizhong Depression of the middle Guangxi Province was analyzed. The origin and genesis of the solid bitumen in reservoir of Well Guizhong-1 in Guizhong Depression were discussed. On the basis of the origin characteristics of solid bitumen, the main destructive factors for the oil and gas reservoirs were analyzed. The research result demonstrates that the solid bitumen in Well Guizhong-1 comes from the argillaceous rock of the middle-lower Devonian and is the pyrobitumen resulted from oil cracking at high geothermal temperature in the early pools. The main constructive factors for the reservoir in Guizhong Depression were discussed.