沉积微相的定量化实现过程及研究方法  

THE QUANTIFICATION REAUZATION PROCESS AND RESEARCH METHOD OF SEDIMENTARY MICROFACIES

作　　者：虞云岩[1] 卞从胜[2] 

机构地区：[1]中国地质大学,北京100083 [2]中石油勘探开发研究院,北京100083

出　　处：《国外测井技术》2009年第2期33-38,3-4,共6页World Well Logging Technology

摘　　要：利用测井资料快速准确地确定沉积微相是油田开发中急需研究解决的问题。本文提出了从测井相识别的定量化到成图的自动化的具体实现过程及方法。首先认为与沉积微相最具相关性的五个测井要素是岩性、砂岩百分比、孔隙度、曲线旋回形态及曲线齿化程度，其次根据研究区微相类型确定测井相识别标准，在此基础上自动判断沉积微相。接着在单砂层测井相识别基础上应用确定性或随机方法进行沉积微相的自动成图，最终结合区域地质背景修正计算机自动成图，完成相图。应用这种思路研究了松辽盆地大安北油田葡萄花油层的沉积微相，取得了一定的效果。To determine sedimentary microfacies fast and accurately with well logging data is a urgent problem to be solved.This paper introduces the concrete realization process and method from quantification of logging facies identification to automatization of map drawing.Firstly,five correlative parameters are lithology,sandstone percentage,porosity,cycle shape and coarseness of logging curves.Secondly,logging facies identification criteria can be determined according to the microfacies type of the studied area and sedimentary microfacies are judged automatically. Thirdly,on the basis of identifying logging facies in a single sand bed,certainty or stochastic method is used to map sedimentary microfacies automatically.The sedimentary microfacies of Putaohua oil layer in Daanbei oilfield,Songliao basin are studied through this method.It has got good result.

关 键 词：沉积微相 测井解释 判别标准 曲线形态 定量研究 

分 类 号：P618.130.2[天文地球—矿床学] P315.7[天文地球—地质学]