海相油气地质2017，Vol.22Issue(3)：1-11,11.DOI:10.3969/j.issn.1672-9854.2017.03.001
川西北部泥盆系观雾山组沉积相新认识 ——以大木垭剖面与何家梁剖面为例
A View of the Sedimentary Facies of Middle Devonian Guanwushan Formation in Northwestern Sichuan Basin, China:A Case Study of Damuya&Hejialiang Sections
摘要
Abstract
Due to the lack of horizontal comparison in carbonate facies, the sedimentary model of the Middle Devonian Guanwushan Fm. was still in dispute. Based on the field work, facies of Guanwushan Fm. in Damuya and Hejialiang were analyzed. It is suggested that the strata was dominated by rimmed carbonate platform with a short period of carbonate ramp. Guanwushan Fm. in Guixi was under the same sedimentary conditions, while not the lagoon facies. Influenced by the sea level change, three sedimentary cycles were developed. The first cycle and the third cycle were both characterized by rimmed platform deposits, while the second cycle developed carbonate ramp. Microfacies controlled the distribution of dolomite reservoir in Guanwushan Formation. Debris beach and upper slope are favorable facies, while platform edge reef and intra-beach are not favorable, especially the karst-caves formed before the migration of hydrocarbon were usually filled by dolomite and calcite.关键词
川西/泥盆纪/观雾山组/碳酸盐岩/沉积相/沉积演化/白云岩储层Key words
Carbonate/Sedimentary facies/Sedimentary evolution/Devonian/Guanwushan Fm./Dolomite reservoir/Sichuan Basin分类
能源科技引用本文复制引用
熊连桥,姚根顺,沈安江,陈剑,熊绍云,郝毅..川西北部泥盆系观雾山组沉积相新认识 ——以大木垭剖面与何家梁剖面为例[J].海相油气地质,2017,22(3):1-11,11.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2016ZX05004-002)和中国石油集团科技重大专项"深层油气勘探开发关键技术研究"(编号:2014E-32-02)联合资助 （编号2016ZX05004-002）
