西昌盆地喜德-普格地区三叠系—白垩系岩相古地理研究  

Study on Lithofacies and Paleogeography of Triassic-Cretaceous Sediments in Xide-Puge Area,Xichang Basin

作　　者：邓国仕[1] 唐业旗[1] 孟万斌[2] 冯明石[2] Deng Guoshi;Tang Yeqi;Meng Wanbin;Feng Mingshi(Chengdu Center of China Geological Survey,Chengdu,Sichuan 610081;State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Chengdu University of Technology,Chengdu,Sichuan 610059)

机构地区：[1]中国地质调查局成都地质调查中心,成都610081 [2]成都理工大学油气藏地质及开发工程国家重点实验室,成都610059

出　　处：《中国煤炭地质》2022年第8期15-22,共8页Coal Geology of China

基　　金：国家自然科学基金青年基金项目(41807333);第二次青藏高原综合科学考察项目(2019QZKK0704、2019QZKK0708);中国地质调查局地质调查项目(DD20211381、DD20160286)。

摘　　要：四川西昌盆地上三叠统白果湾组具备较好的天然气勘探前景,源储一体。同时西昌盆地属于川南地区缺水地段,亟需解决水资源的开发问题。无论油气资源研究还是水资源勘查,都需要建立在详细研究该区岩相古地理的基础之上。在西昌盆地内喜德-普格地区开展多井钻探工作,根据钻孔相关资料,对西昌盆地前陆盆地发展阶段、内陆坳陷盆地发展阶段和盆地萎缩阶段这三个较稳定的沉积阶段的地层进行了沉积相划分和古地理格局的重建,不仅对水资源开发提供指导意见,对油气资源的勘查也提供了最新的地质依据。The Upper Triassic Baiguowan Formation of the Xichang Basin in Sichuan Province has the characteristics of integrated hydrocarbon source and reservoir and has good prospects for natural gas exploration.At the same time,Xichang Basin belongs to the water-deficient area in southern Sichuan Province,and it is urgent to solve the development of water resources.Regardless of oil and gas resource research or water resource exploration,it needs to be established on the basis of detailed research on lithofacies and paleogeography.This study conducted multi-well drilling in the Xide-Puge area in the Xichang Basin.Based on the drilling data,the sedimentary facies division and paleogeographic pattern reconstruction were carried out for the strata of the three relatively stable sedimentary stages,the Foreland Basin Development Stage,Inland Depression Basin Development stage and the Basin Shrinking Stage,which not only provided guidance for the development of water resources,but also provided the latest geological information for the exploration of oil and gas resources.

关 键 词：西昌盆地 白果湾组 新村组 小坝组 沉积特征 岩相古地理 

分 类 号：P531[天文地球—古生物学与地层学]