应用测井资料自动确定岩性的新技术  

NEW TECHNIQUE OF LITHOLOGY STUDY WITH LOGGING DATA

作　　者：赵瑾芳 李英辉[1] 李学军[1] 肖义越[2] 

机构地区：[1]中国海洋石油测井公司 [2]中国科学院地质研究所

出　　处：《中国海上油气（地质）》1990年第6期53-58,共6页China Offshore Oil and Gas(Geology)

摘　　要：应用测井资料研究沉积相,首先要准确地确定单井的岩性剖面.为此,设计了一种自动确定岩性的技术CLLOG.它是以常规测井资料和关键层的岩心资料建立各种岩性模式,用来对未取心的井段(或井)进行岩性判别,绘制出完整而连续的岩性剖面,进而确定粒度和岩性组合;参考主成份分析曲线及自动分层结果,并结合高分辨率地层倾角测井解释沉积构造,可大致划分亚相.以A区2井为实例,阐述了该技术使用结果,并结合高分辨地层倾角测井沉积构造的解释,进行了沉积亚相的划分和分析.Depositional facies study with logging data requires first of all discription of lithology column of a well.Accordingly a new technique CLLOG is developed which is an approach of automatic differentiation of lithologies.The approach is to determine lithologics of uncored intervals or wells based upon lithology models derived from conventional logging data and cores of key intervals,to draw complete and succesive lithology columns and describe grain sizes and lithology combination.In addition,with reference to major composition curves and automatic layer division it can interprct sedimentary structures with high resolution dipmeter to conduct subfacies division.The technique is applied to A-2 well.With sedimentary structure interpretation of high resolution dipmeter logging data,subfacies are divided and analysed.

关 键 词：应用 测井资料 自动确定 岩性 新技术 油气勘探 

分 类 号：P618.13[天文地球—矿床学] P631.84[天文地球—地质学]