建南气田周缘地区飞仙关组沉积特征与勘探目标

鄂西渝东地区自20世纪70年代在建南构造钻探飞仙关组工业气流以来,经历了长期的勘探历程。本文进行了飞仙关组沉积相的划分与鲕粒灰岩滩体分布的分析。在飞仙关组勘探成果的基础上,提出台缘鲕粒滩坝沉积是主要储集体,储集性能在平面上存在差异,指出飞仙关组飞三段的有利储层发育区。结合保存条件分析,提出今后气田勘探目标。

The sedimentary characteristics and exploration targets of Feixianguan Formation in the surrounding of Jiannan Gas Field

Since commercial gas stream has been explored in Feixianguan Formation of Jiannan Structure in the 1970s, the region of Western Hubei & Eastern Chongqing has been experiencing a long-term exploration process.This paper has divided the sedimentary facies of Feixianguan Formation , and analyzed the distribution of oolitic limestone beach body. Based on the exploration achievement of Feixianguan Formation,it has suggested the oolitic limestone beach bar sediments of platform edge are the main reservoir body, and the reservoir characteristics are different in plane. And it has pointed out the profitable reservoir development area of Fei-3 Segment in Feixianguan Formation. Combined with the preserved condition to analyze, the exploration targets of gas fields in the future have been suggested.