文昌X区珠海组储层沉积相研究  

Study on the Sedimentary Facies of Zhuhai Formation in Wenchang Block X

作　　者：姚意迅 左中航 黄俊 严恒 张磊 Yao Yixun;Zuo zhonghang;Huang Jun;Yan heng;Zhang lei(Haikou Branch of CNOOC Ltd.,Hainan Haikou 570100;Tianjin Branch of CNOOC China Limited Company,Tianjin 300452)

机构地区：[1]中海石油(中国)有限公司海南分公司,海南海口570100 [2]中海石油(中国)有限公司天津分公司,天津300450

出　　处：《石化技术》2021年第11期124-125,共2页Petrochemical Industry Technology

摘　　要：首先基于高分辨率层序地层学原理,利用岩-电-震的方法搭建工区地层格架;再结合物源分析结果、岩心、地球物理、测井资料将珠海组划分为扇三角洲和潮坪两个相,四个亚相和9个微相;在地层格架内对区域上珠海组纵向、平面沉积相对比结果表明,珠海组沉积相纵向上具有分层性,平面上具有分区性的特点,作为主力储层的扇三角洲主要发育在珠海组二段基准面上升半旋回,潮坪主要发育在其上部地层。The study based on the principle of high resolution sequence stratigraphy first,and uses the method of rock-logging-seismic to build the stratigraphic framework of the area;Then combined with the results of provenance analysis,high-resolution sequence stratigraphy the research of core,geophysics and logging data to divides the Zhuhai formation into two facies:fan delta and tidal flat.The two facies can recognize four subfacies and nine microfacies.Compared with the results of the vertical and horizontal deposition of the Zhuhai formation in the stratigraphic framework,the results show that the vertical of Zhuhai formation sedimentary facies is stratified and have the characteristics of regionality in the plane.As the main reservoir of the fan delta developments in the ZH2’s upper half cycle,and the tidal flat mainly develops in the upper formation.

关 键 词：高分辨率层序地层学 珠海组 沉积相 扇三角洲 潮坪 

分 类 号：P618.13[天文地球—矿床学]