摘要
Abstract
The sedimentary micro-facies of Es27-8 in Liang 11 fault block has been systematically studied by core,well log shape, sand body geometry and porosity and permeability, etc. The results show that it mainly belongs to distributary channel and estuary bar of delta front subfacies, which may be divided into 8 types of sedimentary micro-facies: underwater distributary channel, natural levee,crevasse splay, abandoned channel, area between distributary channel, estuary bar, distal bar, and delta mud. Among them,the estuary bar and distal bar can be further divided into the main bar and bar edge. The area between distributary channel can be further divided into two subunits; muddy deposition zone and siltstone deposition area. The results show that there are mainly underwater distributary channel,natural levee in Es27 of Liangl 1 fault block, which locally develop crevasse splay and abandoned channel micro-facies. There are mainly estuary bars and distal bars in Es28.关键词
沉积微相/三角洲前缘亚相/水下分流河道/河口坝/远砂坝/分布规律/东营凹陷Key words
sedimentary micro-facies/delta front/underwater distributary channel/estuary bar/distal bar {distribution rule分类
能源科技
