【摘要】 扇三角洲相沉积砂体是渤海油田目前中深层主要含油气砂体之一,其砂体横向变化快,储层纵横向非均质性强,砂体连通性复杂,给油田有效注采井网的建立带来了挑战。X油田含油层段位于古近系的沙三段,为一套以扇三角洲相为主的沉积体系。由于X油田10口开发井实施后,砂体发育特征、流体系统与钻前认识不一致,且变得更为复杂,钻前对地质模式的认识已不能满足油田生产实际需要。因此,结合区域沉积背景、地震及测井等多种资料,从沉积模式、砂体发育特征、油藏模式3个方面开展研究区地质模式的再认识研究,并利用油田试采后的生产动态资料,验证了油田地质模式的合理性。更多还原

【Abstract】 Fan delta sand- body is one of the major oil and gas reservoirs in middle- deep strata of Bohai oil field.The characteristics of this reservoir are high in lateral variation,strong heterogeneity in vertical and horizontal,and complex in connectivity. So for the injection- production patterns built in this oilfield has been a challenge. In X oilfield,the pay layer is sha3 formation,which is the fan delta sedimentary sand- body. After the 10 development well drilled,we found the original geologic model had been not satisfied with the demand of oilfield production,because of the characteristics of sand- body and its fluid system becoming more complex. Therefore,the sedimentary model,sand- body characteristics,reservoir model have been further studied,which combined with the regional sedimentary background,seismic and logging data and Shahejie reservoir description technology. The rationality of new geologic model is verified by the oilfield production dynamic data.更多还原