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:中国中、新生代陆相沉积盆地主要有 3种类型 ,其巨厚的地层中含有丰富的油气资源。陆相沉积作用所特有的地质条件 ,决定了储集岩的矿物及结构成熟度偏低 ,物性变化大 ,非均质性较强 ,砂体连续性较复杂。储层砂岩与泥岩大多呈薄互层状。储层物性受埋藏深度及成岩作用等因素所控制。在湖盆内储层砂体邻近生烃区 ,油气运移距离短 ,砂体类型决定主要运移方式 (侧向或垂向 )。有利圈闭为岩性、构造岩性、断块及断层等类型。文中按砂体成因归纳出 8种陆相储层成藏型式。
: There are mainly three types of Meso-Cenozoic continental depositional basins in China. Their thick strata contain rich oil and gas resources. The geological conditions peculiar to the continental facies sedimentation determine that the mineral and structural maturity of the reservoir rock is low, the physical property changes greatly, the heterogeneity is strong and the continuity of the sand body is complex. Reservoir sandstone and mudstone are mostly thin interlayered. Reservoir properties are controlled by factors such as burial depth and diagenesis. In the reservoir adjacent to the hydrocarbon generating area in the lake basin, the hydrocarbon migration distance is short, and the type of sand body determines the main mode of transport (lateral or vertical). The favorable traps are of lithology, tectonic lithology, fault blocks and fault types. According to the reason of sand body, 8 kinds of terrestrial reservoirs are summarized.