委内瑞拉卡拉高莱斯合同区储层沉积微相研究

以岩心分析和大量的测井，地震资料为基础，通过对各种沉积相标的分析，对委内瑞拉卡拉高莱斯合同含油层系的沉积相类型，微相组成以及主要沉积微相的特征进行研究，笔者认为该区海内库莱（Mercure)组和奥菲西纳（Oficina)组为一套海陆过渡环境的三角洲相沉积，储集层主要为三角洲平原分流河道砂体，三角洲前缘水下分流河道及与之同期伴生的河口坝，前缘席状砂砂体，其次，在小层划分，对比的基础上，根据测井，地城和生产动态资料，分析了合同区含油层系100余个小层的沉积微相的平面展布状况及沉积微相在纵向上的演化规律。

Sedimentary microfacies of the reservoirs in the Caracoles working area, Venezuela

The sedimentary facies and microfacies of the oil measures in the Caracoles working area, Venezuela are examined on the basis of cores, well logs and seismic data, and sedimentary facies indicators. The Mercure and Oficina Formations consist of terrestrial-marine transitional delta deposits. The reservoirs in the studied Formations are composed of delta plain distributary channel sandstone bodies, delta front subaqueous distributary channel and associated channel-mouth bar and frontal sheet sandstone bodies. The planar distribution and longitudinal evolution are also discussed in detail for the sedimentary microfacies of more than one hundred of rock beds in the oil measures of the working area.