海相油气地质2018，Vol.23Issue(2)：53-58,6.DOI:10.3969/j.issn.1672-9854.2018.02.007
普光气田新类型储层——飞仙关组砾屑碳酸盐岩的沉积特征及模式
Sedimentary Characteristics and Depositional Model of A New Type of Reservoir in Feixianguan Formation, Puguang Gas Field
摘要
Abstract
By the observation of the drilling core, it is found that a new type of reservoir, named gravel-sized grain carbonate rocks, is mainly distributed in the Feixianguan Formation of Puguang Gas Field in the foreslope of platform. Based on the analysis of gravel composition, development scale, grain size and degree of roundness, it could be divided into calcirudyte and dolorudite. It is shown that small scale calcirudyte is mainly formed by long distance transportation and with relationship to the turbidity current; and large scale dolorudite is mainly formed by no moving or by short distance transportation and with relationship to the collapsing sediment. In the sedimentary model of gravel-sized grain carbonates in slope belt in Feixianguan Formation of Puguang Gas Field, the source of calcirudyte is from the carbonate platform, and the big scale dolorudite is usually distributed in the upper slope belt where the favorable reservoir is well developed, but the thin calcirudyte is distributed in the lower slope where the reservoir is not developed.关键词
四川盆地/普光气田/飞仙关组/碳酸盐岩/斜坡带/沉积模式Key words
Feixianguan Formation/Carbonate rock/Slope zone/Sedimentary model/Puguang Gas Field/Sichuan Basin分类
能源科技引用本文复制引用
周凯,王美格,尹青,黄佩..普光气田新类型储层——飞仙关组砾屑碳酸盐岩的沉积特征及模式[J].海相油气地质,2018,23(2):53-58,6.基金项目
本文受国家科技重大专项"大型油气田及煤层气开发"(编号:2016ZX05017-001)和中石化科技重大专项"四川盆地海相大型气田目标评价与勘探关键技术"(编号:P16082)联合资助 （编号:2016ZX05017-001）
