fu xin pen di shi you di zhi te zheng
Author(s): Liu Jianying Wang Shiyun Yin Jihong
Pages: 450-457
Year: 1992 Issue: 4
Journal: Oil & Gas Geology
Keyword: 阜新盆地; 陆相沉积; 侏罗系; 九佛堂组; 沙海组; 含油远景评价;
Abstract: Fuxin Basin is a graben-type basin that covers an area of 2000 km~2 formed on Pre-cambrian basement during Late Jurassic-Early Cretaceous.Contemporaneous faults couldbe primarily classified into two groups such as NNE-stretching and NW-stretching faults.The former controlled the thickness and distribution of Upper Jurassic,and the later con-trolled the distribution of coal-rich zones and local structures.The Jiufotang Formationand the third-fourth member of the Shahai Formation are the main source rocks whoseorganic matter is mainly type-Ⅱ,and the threshold depth of oil-generation that is calcu-lated with average 3.93℃/100m of geothermal gradient is 1350 m.Reservoirs occupy70% of the total sediment thickness,in which sandbodies of fan-delta and subaqueusgravity-flows are more favourable for hydrocarbon preservation.
Pages: 450-457
Year: 1992 Issue: 4
Journal: Oil & Gas Geology
Keyword: 阜新盆地; 陆相沉积; 侏罗系; 九佛堂组; 沙海组; 含油远景评价;
Abstract: Fuxin Basin is a graben-type basin that covers an area of 2000 km~2 formed on Pre-cambrian basement during Late Jurassic-Early Cretaceous.Contemporaneous faults couldbe primarily classified into two groups such as NNE-stretching and NW-stretching faults.The former controlled the thickness and distribution of Upper Jurassic,and the later con-trolled the distribution of coal-rich zones and local structures.The Jiufotang Formationand the third-fourth member of the Shahai Formation are the main source rocks whoseorganic matter is mainly type-Ⅱ,and the threshold depth of oil-generation that is calcu-lated with average 3.93℃/100m of geothermal gradient is 1350 m.Reservoirs occupy70% of the total sediment thickness,in which sandbodies of fan-delta and subaqueusgravity-flows are more favourable for hydrocarbon preservation.
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