摘要
港西油田明化镇组为曲流河沉积。本次研究精细划分出点坝、末期河道、决口扇、废弃河道、泛滥平原等5个沉积微相，其中点坝是本区储层的主要成因类型。平面上明化镇组油层非均质性较强，受沉积微相控制，储层层内及层问属中等一强非均质性。在微观上则表现为特高渗粗喉、高渗粗喉～中喉型吼道的特点。本区储层非均质性主要受沉积环境的控制。
The Minghuazhen Formation in the Gangxi Oilfield is meandering river deposits. Which may be divided into five microfacies ： point bar,the last channel,crevasse splay,abandoned channel ,Floodplain ,of which point bar is the main cause of the type of reservoir. In a plane view, the minghuazhen pay zone is highly heterogeneous and stronger controls by sedimentary microfacies, while the inter--reservoir and within--reservoir heterogeneities are moderate-- high. Microscopically, it is characterized by special hypertonic rough throat, hypertonic Rough throat - medium throats, high coordination numbers. The reservoir heterogeneity in the area is mainly controlled by the sedimentary environment.
出处
《内蒙古石油化工》
CAS
2010年第2期131-132,共2页
Inner Mongolia Petrochemical Industry
关键词
大港油田
明化镇组
沉积微相
储层非均质性
Dagang Oilfield
Minghuazhen Formation
Sedimentary Microfacies
Reservoir hetero geneity
