古地理学报2012，Vol.14Issue(2)：176-186,11.
四川盆地东部下三叠统飞仙关组白云岩化作用及其与储集层发育的关系
Dolomitization and its relationship with reservoir development of the Lower Triassic Feixianguan Formation in eastern Sichuan Basin
摘要
Abstract
Gas reservoirs of the Lower Triassic Feixianguan Formation in eastern Sichuan Basin are mostly dolostones, which are distributed in the platform margin around Kaijiang-Liangping Basin. Petro-graphic and geochemical evidences indicate multiple dolomitization events, and the most significant one of which was triggered penecontemporaneously by reflux of evaporative seawater. Dolostones formed in early periods had undergone various degree of recrystallization during burial, which resulted in the complex rock textures. Pore of the Feixianguan Formation dolostones is predominantly intergranular and/or oomoldic (or intragranular) , which is inherited from the precursor limestones rather than creating during dolomitization. These kinds of pore are well preserved in dolostones, owing to early dolomitization and the resistance of dolomites to compaction.关键词
四川盆地/飞仙关组/鲕滩相储集层/白云岩化作用Key words
Sichuan Basin/ Feixianguan Formation/ oolitic shoal reservoir/ dolomitization分类
天文与地球科学引用本文复制引用
潘立银,刘占国,李昌,寿建峰,张建勇,张杰,沈安江,周进高,郑兴平..四川盆地东部下三叠统飞仙关组白云岩化作用及其与储集层发育的关系[J].古地理学报,2012,14(2):176-186,11.基金项目
国家科技重大专项(编号:2011ZX05004-002)资助 （编号:2011ZX05004-002）
