【摘要】 根据区域地质、地震、测井及岩心分析资料,对辽河油田大民屯凹陷沈84-安12区块沙三段沉积特征及沉积模式进行研究。结果表明:沙三段是断陷期扇三角洲沉积,可进一步划分为扇三角洲平原、扇三角洲前缘、前扇三角洲3中亚相,以及辫状分流河道、河间薄层砂、河间泥3种主要微相类型。更多还原

【Abstract】 According to regional geology,seismic,logging and core analysis data,the reservoir sedimentation characteristics and sedimentation model of Es3 of Shen84-an12 block in Damingtun sag in Liaohe Oilfield were re-searched comprehensively.The results show that the area is fan-delta region in faulttrough Period.The fan delta could be further separated into three subfacies including fan-delta plain,fan-delta front,former fan delta,and mainly three microfacies such as braided distributary channel、axis thin sand and axis mud.更多还原