摘要
将渤海湾盆地的沉积斜坡按结构分为3类4种,并归纳出4种相应的沉积序列;按沉积相将砂体划分为8种储集层类型,以河流—三角洲砂为最佳储层;并归纳出斜坡带的4种油气藏分布模式;总结了斜坡带油气聚集的基本条件;通过对4种斜坡的类比表明:凹坡型为最佳含油斜坡。并对冀中坳陷斜坡带的油气勘探提出了建议。
Sedimentary slopes of the Bohai Gulf basin may be divided into three types and four kinds according to their structures, and four kinds of corresponding sedimentary sequences are distinguished. The sand bodies may be divided into eight types of reservoir according to the sedimentary facies, with the fluvial delta sand being the best reservoir. Four reservoir distribution models of slopes are constructed and the basic conditions of hydrocarbon accumulation in slopes are summed up. Comparison of the four kinds of slope indicates that the concave slope type is the best oil-bearing one. Suggestions of petroleum exploration in the slopes of the Jizhong depression have been put forward.
出处
《地质力学学报》
CSCD
2006年第1期23-30,共8页
Journal of Geomechanics
基金
国家自然科学基金项目(No.40302036)资助
关键词
渤海湾
斜坡带
沉积
序列
含油气性
勘探
slope
Bohai Gulf
sedimentary sequence
oil potential
exploration
