珠江口盆地珠一坳陷油气资源再评价
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摘要
应用含油气系统理论与方法,采用成因评价法,将地质分析与模拟计算、三级层序地层分析与地质建模、二维地震资料与三维地震资料以及"点、线、面"(钻井、地震剖面、三级层序)资料及研究成果有机结合,按半地堑三级层序分析确定生烃参数,按半地堑不同层系(组)分析确定生油边界和生油中心,根据石油地质条件不同分时期选取运聚系数,计算了珠一坳陷不同时期各半地堑生烃层序的生烃量和不同时期各半地堑的油、气资源量,并根据生烃强度、资源量和资源丰度等指标对区内10个半地堑油气资源潜力进行了评价,其结果再次证明了珠江口盆地是中国近海剩余油气资源量较大的地区之一。
The petroleum system theory and methods and the genetic assessment methods are applied to integrate geological analysis with basin modeling,third sequence strata analysis with geological model-building,2D seismic data with 3D data,and point,line and area(borehole,seismic section and third sequence)data with the research results.The hydrocarbon generation parameters are determined by the third sequence analyses in half grabens,the oil generation boundaries and centres are determined by various strata series(formation) analyses in different half grabens,the coefficients of migration and accumulation are selected for different stages of petroleum geology conditions,and finally the amounts of hydrocarbon generation are calculated for each hydrocarbon generation sequence in different half grabens at each stage and the hydrocarbon resources for each half graben at each stage.Then the hydrocarbon resources potential is assessed in 10 grabens by their hydrocarbon generation intensities,resources amounts and abundances,with the results again proving that Pear River Mouth Basin is one of the offshore areas with more remaining hydrocarbon resources in China.
The petroleum system theory and methods and the genetic assessment methods are applied to integrate geological analysis with basin modeling,third sequence strata analysis with geological model-building,2D seismic data with 3D data,and point,line and area(borehole,seismic section and third sequence)data with the research results.The hydrocarbon generation parameters are determined by the third sequence analyses in half grabens,the oil generation boundaries and centres are determined by various strata series(formation) analyses in different half grabens,the coefficients of migration and accumulation are selected for different stages of petroleum geology conditions,and finally the amounts of hydrocarbon generation are calculated for each hydrocarbon generation sequence in different half grabens at each stage and the hydrocarbon resources for each half graben at each stage.Then the hydrocarbon resources potential is assessed in 10 grabens by their hydrocarbon generation intensities,resources amounts and abundances,with the results again proving that Pear River Mouth Basin is one of the offshore areas with more remaining hydrocarbon resources in China.
引文
1)梅廉夫,施和生,陈斯忠,等.珠江口盆地珠一坳陷二级构造带、断层封闭性和输导性研究.2007.
[1]张宽,胡根成,吴克强,等.中国近海主要含油气盆地新一轮油气资源评价[J].中国海上油气,2007,19(5):289-294.
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[5]陈长民,施和生,许仕策,等.珠江口盆地(东部)第三系油气藏形成条件[M].北京:科学出版社,2003:76-77.
[6]龚再升,李思田.南海北部大陆边缘盆地油气成藏动力学研究[M].北京:科学出版社,2004.
[7]庞雄奇,Ian LERCHE,王雅春,等.煤系源岩排烃门限理论研究与应用[M].北京:石油工业出版社,2001:63-99.
[8]李丕龙,等.陆相断陷盆地油气地质与勘探(卷三):陆相断陷盆地油气生成与资源评价[M].北京:石油工业出版社,2003.
[1]张宽,胡根成,吴克强,等.中国近海主要含油气盆地新一轮油气资源评价[J].中国海上油气,2007,19(5):289-294.
[2]金之钧,张金川.油气资源评价方法的基本原则[J].石油学报,2002,23(1):19-24.
[3]金之钧,张金川.油气资源评价技术[M].北京:石油工业出版社,1999:66-71.
[4]周总瑛,白森舒,何宏.成因法与统计法油气资源评价对比分析[J].石油实验地质,2005,27(1):67-72.
[5]陈长民,施和生,许仕策,等.珠江口盆地(东部)第三系油气藏形成条件[M].北京:科学出版社,2003:76-77.
[6]龚再升,李思田.南海北部大陆边缘盆地油气成藏动力学研究[M].北京:科学出版社,2004.
[7]庞雄奇,Ian LERCHE,王雅春,等.煤系源岩排烃门限理论研究与应用[M].北京:石油工业出版社,2001:63-99.
[8]李丕龙,等.陆相断陷盆地油气地质与勘探(卷三):陆相断陷盆地油气生成与资源评价[M].北京:石油工业出版社,2003.
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