摘要
春光油田是一个具有多油源供给、多输导体系和多油品的复杂油气聚集区。车排子凸起本地不发育有效烃源岩,其供烃距离长达数十千米至上百千米,属于典型的源外油藏,导致春光油田成藏条件复杂,油气圈闭识别难度大,成藏特征非常独特。从油气来源分析出发,通过断裂、板砂、不整合面三方面分析了油气输导体系,建立了重点含油井区成藏模式,总结了油气成藏特征。研究结果表明,春光油田具有明显的"双向供烃"特征,油气主要是通过不整合面、板砂和断层面构成的"复式"输导体系运聚成藏。
Chunguang oilfield is a complex oil and gas accumulation area with multi-oil supplies, multi-transport systems and multi-oil products. Effective source rocks are not developed locally in the Chaipaizi uplift, and the hydrocarbon supply distance is about tens to hundreds of kilometers, which is a typical reservoir outside the source area. As a result, the reservoir forming conditions in Chunguang oil field are complex, and the identification of hydrocarbon traps is difficult, and the reservoir forming characteristics are unique. Based on the analysis of oil and gas sources, the oil and gas transmission systems are analyzed from three aspects of fault, sand plate and unconformity surface. The reservoir forming model of key oil-bearing well area is established, and the characteristics of oil and gas accumulation are summarized. The results show that Chunguang oilfield has obvious characteristics of 'bidirectional hydrocarbon supply', and oil and gas transport and accumulation mainly through the compound transport system composed of unconformity surface, plate sand and fault surface.
出处
《石油地质与工程》
CAS
2018年第5期1-5,共5页
Petroleum Geology and Engineering
基金
中国石油化工股份有限公司科研项目"春光油田稀油油藏改善开发效果关键技术研究"(P16081)
关键词
春光油田
车排子凸起
输导体系
源外油藏
成藏特征
Chunguang oilfield
Chepaizi uplift
transportation system
reservoirs outside the source area
hydrocarbon accumulation characteristics
