测井相－岩相自动分析方法在某复杂岩性区的应用  

APPLICATION OF THE AUTOMATIC ANALYTIC METHOD TO ELECTROFACIES LITHOFACIES IN SOME COMPLEX LITHOLOGIC AREA

作　　者：刘争平[1] 杜奉屏[1] 

机构地区：[1]成都理工学院

出　　处：《物探化探计算技术》1995年第2期61-68,共8页Computing Techniques For Geophysical and Geochemical Exploration

摘　　要：测井相一岩相自动分析方法是现代油藏描述技术中的重要内容。我们选取了某地区一套岩性复杂的碳酸盐岩地层，并仅限在常规测井系列中选取测井相分析基本参数，建立了适用于该区绝大多数井的测井相一岩相数据库。可快速，方便准确地提供该复杂岩性区的单井连续岩性拄状图及区内任意方位剖面的多井岩性横向对比图。在碳酸盐岩地区成功的应用常规系列测井参数进行测井相一岩相自动分析方法，国内尚未见到先例。The automatic analysis of electrofacies lithofacies is one of the most important techniques in reservoir description,The technique is essentially a set of procedures of computing multivariate statistical proccessing as below. First,the well一logging data,or their synthesecs which mainly reflect lithology,are clustered as a data base,i.e. electrofacies.Then electrofacies are related to a reasonable lithology by callbration with core. Finally,a continuous lithology-log of well,or well interval which lacks cores data,is established by diseriminatory analysis according to the calibration.Until now,howevet , most of successful application cases of the technique knouwn are bouneded to simpleU litholstratigraphy-mainly consisting of sand and clay,though there are abundant hydrocarbon from carbonate rack strata in the country. The authors choose a suite of complex carbonate rock strata in some area as the study area and limit the analytic basic data on electrofacies to routine well-logs. By calibration of core data from key wells.the authors creat a data base of electrofacics-lithofacies which fits the automatic determination of lithology of most of non-core wells,or well intervals in the area and can fast,effectivelly precisely establish a continuous lithology-log of a well and lith ologic correlation profile of multiple wells in the arbitrary direction in the area. As a successful application,the technique is stepping a routine application stage and playing an important role in the reservoir description project in the area.

关 键 词：油藏 复杂岩性区 测井 岩相 分析法 自动化 

分 类 号：P618.130.5[天文地球—矿床学]