腰英台油田储层裂缝特征及其对开发的影响

裂缝是腰英台油田储层的主要渗流通道之一,其复杂分布严重影响该油田的开发生产。通过区域地应力研究、岩心构造解析和成像测井观察,结合露头资料与油水井的生产动态,分析了区内裂缝的发育特征、成因机制及控制因素。通过预测腰英台油田裂缝发育程度及展布方向,分析了裂缝对注水的影响。指出随着开发的不同阶段应调整注采井网,防止油井的强烈水淹。

Reservoir crack characteristics and its effect on development in Yaoyingtai oilfield

The crack is one of the seepage paths in Yaoyingtai oilfield, and its complex distribution has an important impact on the development and production of the oilfield. Based on the regional research of stress, the core structural analysis and imaging logging observation, combined with outcrop data and production performance of oil wells, the developmental characteristics of the cracks, the formation mechanism and controlling factors in the region have been analyzed. By forecasting crack growth characteristics and distribution of Yaoyingtai oilfield, the impact study of crack injection has been carried out. In order to prevent the intense water flooded of oil wells, the injection and production well pattern should be adjusted in different development stages.