凝灰质储层研究进展综述及探讨

Summary and discussion on tuffaceous reservoir research progress

张成林¹ 张鉴¹ 吴建发¹ 石学文¹ 赵春妮¹ 于小雅²

中国石油西南油气田分公司勘探开发研究院，四川 成都 610051 中国石油川庆钻探工程公司川西钻探公司，四川 成都 610051

Research Institute of Exploration and Development, Southwest Oil and Gas Field Company, PetroChina, Chengdu 610051, China Chuanxi Drilling Company of Chuanqing Drilling Engineering Co. Ltd., CNPC, Chengdu 610051, China

近年来，凝灰质岩油气藏勘探取得突破性进展，已成为油气勘探的一个新领域。文中在调研国内外凝灰质储层研究成果基础上，总结了凝灰质岩的岩石学特征、物性特征，将凝灰质储层储集空间分为原生孔隙、次生孔隙和裂缝等三大类及若干亚类，其中，次生孔隙是主要储集空间类型，裂缝发育能有效提高局部储层渗流性能；分析了凝灰质储层的各项成岩作用，其中，压实作用、胶结作用是主要破坏性成岩作用，脱玻化作用、熔结作用和溶蚀作用是主要建设性成岩作用；总结出凝灰质储层的形成机理，并对凝灰质储层的评价标准进行探讨。

With the breakthrough of tuffaceous petroleum reservoir exploration recently, tuffaceous reservoir has become a new research field. Based on the domestic and overseas research results of tuffaceous reservoir, petrology feature and physical property of tuffaceous rocks are summarized; reservoir space of tuffaceous reservoir are divided into three types, including primary pore, secondary pore and fissure, of which secondary pores are main reservoir space, and fissure development can improve vadose property; diagenesis of tuffaceous reservoir is also analyzed, among which compaction and cementation are destructive diagenesis, while devitrification, welding and dissolution are constructive diagenesis; formation mechanism of tuffaceous reservoir is summarized, and the evaluation criterion is discussed.

10.6056/dkyqt201605001