油气化探异常综合评价指标与评价软件开发  

COMPREHENSIVE ASSESSMENT INDEXES OF OIL/GAS GEOCHEMICAL ANOMALIES AND RELATED SOFTWARE DEVELOPMENT

作　　者：谢淑云[1] 鲍征宇[1] 任志高[2] 

机构地区：[1]中国地质大学地球科学学院,湖北武汉430074 [2]大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712

出　　处：《物探化探计算技术》2001年第4期348-352,共5页Computing Techniques For Geophysical and Geochemical Exploration

基　　金：国家教育部博士点基金资助 ;大庆油田有限责任公司勘探开发研究院资助

摘　　要：作者在本文中根据油气化探异常的特点 ,首先确定了评价区块 (靶区 )中各化探变量的异常点群和背景点群的划分 ,然后提出了异常强度系数、异常面积系数、异常中心位置、环形异常指数等四项指标作为单化探变量异常的特征指标。在此基础上 ,提出了油气化探异常靶区综合评价的指标体系 ,即综合异常强度系数、综合异常面积系数、综合环形异常指数和异常中心重合程度。依据这一评价指标体系的油气化探异常 ,评价软件已应用于大庆油田近十个工区的油气化探资料再开发 。In the light of the characteristics of geochemical anomalies commonly encountered in oil/gas exploration, the anomalous point set and the background one to a specific geochemical variable in an assessment area, or a target, are first specified. Then, a set of four indexes including anomaly strength coefficient, anomaly area coefficient, anomaly center, ring-shaped anomaly index are used as the characteristic indexes for geochemical anomaly evaluation. These indexes can be synthesized by a weighted mean procedure to give out corresponding comprehensive indexes which can be used in the assessment of the targets in oil/gas geochemical exploration. These comprehensive indexes have been successfully applied to revaluate geochemical data form about ten geochemical exploration schemes in Daqing Oil Field.

关 键 词：异常评价 指标体系 油气化探 软件 构造圈闭 油气藏 

分 类 号：P618.130.8[天文地球—矿床学] TE13[天文地球—地质学]