川西坳陷须家河组地震相河道分布特征  

Channel Distribution Characteristics of the Xujiahe Formation in the Western Sichuan Depression Based on Seismic Facies

作　　者：白林坤 向超 熊亭 程乐利 BAI Lin-kun;XIANG Chao;XIONG Ting;CHENG Le-li(Sino-French Bohai Sea Geological Service Co.,Ltd.Tianjin 300452;Shenzhen Branch,CNOOC(China)Co.,Ltd.,Shenzhen,Guangdong 518067;Institute of Logging Technology and Engineering,Yangtze University,Wuhan 434023)

机构地区：[1]中法渤海地质服务有限公司,天津300452 [2]中海石油(中国)有限公司深圳分公司,广东深圳518067 [3]长江大学录井技术与工程研究院,湖北荆州434023

出　　处：《四川地质学报》2021年第3期431-435,470,共6页Acta Geologica Sichuan

摘　　要：川西坳陷须家河组具有较大的勘探潜力,一直以来备受关注。本文以地震相为目标,对工区内河道分布特征进行研究,在地震相上识别了下切型、侧积型、充填型三类河道。通过对工区五个地层段进行地震解释,共解释出了115条河道,组合成了42条河流,而这些河流是控制工区三角洲的沉积体系展布的主要因素。The Xujiahe Formation in the Western Sichuan Depression is of petroleum potential.This study deals with channel distribution characteristics of the Xujiahe Formation in the western Sichuan depression based on seismic facies.Three types of channels such as incised,lateral and filling,and 115 channels of 42 rivers have been identified in the Xujiahe Formation by means of seismic facies.The 42 rivers are the main factor controlling the distribution of the delta sedimentary system in the western Sichuan depression.

关 键 词：川西坳陷 须家河组 地震相 河道特征 

分 类 号：P618.13[天文地球—矿床学]