曹毅;陈军斌;刘振;张微;徐怀民;姚欢迎;

• 1:西安石油大学博士后创新基地

• 2:西安石油大学石油工程学院

• 3:中国石油大学(北京)地质资源与地质工程博士后流动站

• 4:川庆钻探工程有限公司长庆钻井总公司

摘要(Abstract)：

为明确缓坡型台缘生物礁的沉积特征和储层特征及其对气井产能的影响规律,以四川盆地开江—梁平海槽东侧长兴组生物礁为例,采用高密度三维地震连片处理成果、测井解释结果及岩心分析资料,研究开江—梁平海槽东侧缓坡型台缘生物礁气藏的构造、断层、沉积及储层特征,分析气藏地质特征与产能之间的关系。结果表明:研究区为典型的缓坡型台缘生物礁,礁体发育在台地边缘相中,台缘坡度小,为20°～30°,礁体呈层状发育,纵向上多套叠置,礁体规模差异大,形态多样(条状、环状、点状等);研究区各构造高度差异大,断层为逆断层且呈条带状发育,主要储集岩为礁云岩、生屑云岩及砂屑云岩,生物礁储层主要发育于长兴组中、上部的长二、长三段,属于以低孔—超低渗的次生孔隙为主的裂缝—孔隙型储层,非均质性强;缓坡型的沉积模式及储层非均质性导致气井产能差异大。该结果为研究区气藏储量核算及开发调整方案编制提供依据。

关键词(KeyWords)：生物礁;台缘缓坡;沉积特征;非均质性;产能特征;长兴组;四川盆地

Abstract:

Keywords:

基金项目(Foundation):国家自然科学基金项目(51874239);; 国家级大学生创新训练项目(201710705001)

作者(Author):曹毅;陈军斌;刘振;张微;徐怀民;姚欢迎;

Email:

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