储层相结构模式及其开发响应特征

大庆油田杏六中区现处于特高含水期，油水分布复杂，需要对储层进行更加深入的研究。，在前人研究基础上，结合新增加密井井网资料，进行精细沉积相研究，确定研究区葡I油组目的层段发育三角洲平原和前缘亚相，并对各亚相进行了微相划分．分为分流河道、河间砂、岸后沼泽微相、水下分流河道、主体席状砂、非主体席状砂等微相。通过详细分析目的层段的沉积展布特征及其演化规律，确立了4种相结构模式，各类相结构具有不同的砂体分布特征；注入水的运动趋势分析表明．不同相结构模式具有不同的开发响应特征。

Reservoir architecture model and its development response characteristics

At present, Xing 6 Middle Area in Daqing Oilfield is in the period of extra-high water cut and the distribution of nil and water is complex, so it is necessary to make a profound research on the reservoir. Based on former researches and combined with the data of new filling well pattern, sedimentary microfaeies are discussed. Results show that Pu I oil layer in Xing 6 Middle Area develops delta plain and delta front subfaeies, which can be further divided into a few of micwfacies, including subaerial distributary channel, fine inter-channel sand, the shore marsh, ubaqueous distributary channel, thick sheet sand and thin sheet sand microfaeies. Through analyzing the profile characteristics of sedimentary facies and the horizontal distribution of the target layer, four facies architecture models are determined. Various facies architecture models have different characteristics of sand body distribution in the study area. Analysis of the movement trends for injected water shows that different facies architectures have different characteristics of development response.