【摘要】 为了明确长岭气田沉积相对储层的控制作用,指导气田高效开发,通过对沉积背景、岩心描述、粒度分析等资料综合研究,确定了长岭气田登娄库组储层为浅湖背景三角洲平原相沉积,主要发育于分支河道、河道间、决口扇和天然堤等4种微相类型。结合测井、岩心分析等研究,确定了各微相特征及分布规律,明确了沉积微相对有效储层的控制作用,其中,分支河道为有效储层发育的主要微相类型,决口扇和天然堤次之,河道间微相则不发育有效储层。更多还原

【Abstract】 In order to understand the control action of sedimentary facies on reservoirs in Changling gas field, a comprehensive investigation has been conducted in respects of depositional setting, core description, and grain size analysis. It is determined that the Denglouku formation in Changling gas field belongs to delta plain facies in shallow lake environment, mainly including four microfacies, which are branch channel, interchannel, crevasse splay and natural levee. The characteristics and distribution of each microfacies are determined by combining with logging and core analysis data, and the control action of sedimentary microfacies on effective reservoirs is understood. The branch channel contributed the most to effective reservoir development, crevasse splay and natural levee were the next, and no effective reservoir had developed in interchannel microfacies.更多还原