苏里格气田苏36区块盒8—山1段沉积特征  

Sedimentary Characteristics of He 8 Member-Shan 1 Member in Su 36 Block of Sulige Gas Field

作　　者：李淼 张金亮 王金凯[1] 侯锡鹏 柳慧敏 LI Miao;ZHANG Jinliang;WANG Jinkai;HOU Xipeng;LIU Huimin(School of Earth Science and Engineering,Shandong University of Science and Technology,Qingdao 266590,Shandong,China;College of Resources Science & Technology,Beijing Normal University,Beijing 100875,China)

机构地区：[1]山东科技大学地球科学与工程学院,山东青岛266590 [2]北京师范大学资源学院,北京100875

出　　处：《西安石油大学学报（自然科学版）》2019年第1期13-21,28,共10页Journal of Xi’an Shiyou University（Natural Science Edition）

基　　金：国家自然科学基金项目"水淹油环地下储气库高速注采过程中损失气赋予规律及表征方法研究"(51504143)

摘　　要：苏里格气田苏36区块主产层为盒8—山1段,为了探究该区沉积微相类型及砂体展布规律,在前人研究成果的基础,通过岩心观察与描述、岩性分析、粒度分析、单井相解释及连井剖面分析等方法,对研究区沉积微相类型及砂体的空间展布特征进行研究,并模拟沉积演化模式。研究结果表明:盒8上亚段和山1段发育曲流河沉积相,可识别出点坝、决口扇、泛滥平原等微相;盒8下亚段发育辫状河沉积相,可识别出心坝、侧坝、沙泥坪等微相。从山1段到盒8段,沉积体系由曲流河到辫状河,又过渡为曲流河;物源主要来自东北方向,近物源碎屑物快速堆积;砂体平行物源供给方向呈条带状展布,沿长轴方向砂体连续性较好。有利储集体集中在盒8下亚段,储集性能优于盒8上及山1段。The main production layer of Su 36 block in Sulige gasfield is He 8 Member-Shan 1 Member.Based on the previous research results,the sedimentary microfacies types and the sandbody distribution law of this block were studied through core observation and description,lithology analysis,grain size analysis,single well facies interpretation and connection well section analysis,etc.,and the sedimentary evolution mode was simulated.The research results show that,the meandering river sedimentary facies developed in the upper part of He 8 member and Shan 1 member,in which point bar,crevasse fan and floodplain microfacies can be identified;braided river sedimentary facies developed in the lower part of He 8 member,in which core bar,side bar and sand and mud terraces microfacies can be identified.From Shan 1 to He 8 member,the sedimentary system transited from meandering river to braided river and then to meandering river.The provenance mainly comes from the northeast direction,and the debris accumulates rapidly near the provenance.The sand body distributes in strip parallel to the source supply direction,and the continuity of the sand body along the long axis direction is better.The favorable reservoirs are concentrated in the lower part of He 8 member,whose reservoir physical properties are better than those of the upper part of He 8 member and Shan 1 member.

关 键 词：沉积微相 沉积模式 盒8-山1段 苏36区块 苏里格气田 

分 类 号：TE121.3[石油与天然气工程—油气勘探]