地表油气化探综合参数应用于冀中坳陷廊固凹陷钻井含油气性判别的效果  

Pilot study of surface geochemical parameters to identify oil and gas potential at Langgu sunken in central Hebei depression, China

作　　者：周国华[1] 吴锡生[2] 谢学锦[1] 

机构地区：[1]中国地质科学院地球物理地球化学勘查研究所,河北廊坊065000 [2]吉林大学地球科学学院,吉林长春130061

出　　处：《地质通报》2009年第11期1662-1667,共6页Geological Bulletin of China

基　　金：华北石油管理局勘探部项目<廊固凹陷油气地球化学普查>资助

摘　　要：以油气物质垂向运移理论为依据,从影响油气物质垂向运移及其地表油气化探异常的地质构造、地表土壤环境因素出发,分析了各类油气化探综合参数的意义。根据廊固凹陷油气田井场地表油气化探实测数据,计算了各井场油气化探指标的MPV、MAV、Ai、Vi值和烃汞比值、吸附烃总浓度等参数。已知油气井的多参数图解显示,地表油气化探综合参数能有效地识别钻井的含油气性,据此可以判别正钻井的含油气前景。This paper discusses the significance of integrated parameters of surface oil and gas geochemical survey based on the vertical transportation theory and the influencing factors including geological structure, soil properties and others. A few integrated parameters of surface oil and gas survey surrounding some wells were calculated at Langgu depressed including MPV, MAV, Ai, Vi, total soil absorbed hydrocarbon and the concentration ratio of hydrocarbon to mercury. It was shown that oil wells, gas wells low-production oil have different distribution zone on the plots composed of these parameters. So that the oil and gas potential of drilling well can be expected by surface geochemical survey.

关 键 词：地表油气化探 井场 含油性判别 综合参数 

分 类 号：P618.13[天文地球—矿床学] P632[天文地球—地质学]