【摘要】 针对春晖油田山地山前带地表地质条件复杂的难题,以构造地质模型指导三维观测系统设计,攻克了山前高陡构造带三维地震技术难关。通过实施三维地震、系统研究油气运聚、精细描述地层超剥,部署19口探井,18口井见良好油气显示,7口井获工业油流,证实春晖油田浅、中、深层多层系含油。研究表明,侏罗系油藏为浅层古生新储断裂控制的超稠油构造油气藏,多期升降和剥超作用控制了残余地层展布,正序沉积叠加过程控制了储盖组合样式,构造演化与沉积作用耦合控制了圈闭的发育及展布,已落实石油地质储量5 332×104t。更多还原

【Abstract】 In view of the complex geology conditions of Chunhui Oilfield,the technical difficulty of 3D seismic for high-steep structure zone of mountain front has been overcome based on letting tectonic geology models guide 3D visual system design.By 3-D seismic,systemetic study on hydrocarbon migration and accumulation,fine description of stratigraphic overlap and denudation,19 exploratory wells are arranged,18 of which indicate oil and gas,7 of which get industrial oil flow.The exploration results show that multiple strata series of shallow,middle and deep depth in Chunhui Oilfield contains oil.The results also show that Jurassic reservoirs are extra heavy oil structural reservoirs controlled by shallow Palaeozoic faults;multi-period lift and down and denudation control the distribution of residual formation;positive sequence sedimentation overlying controls combination mode;tectonic evolution and sedimentation control the development and spreading of traps;geological reserves of 5 332×104t has been confirmed.更多还原