摘要
大牛地气田上古生界山西组、下石盒子组分布范围广,储层发育。随着大牛地气田勘探开发的不断深化,在已完钻井中,经试油证实发现,除常规高阻气层外,存在较多的低阻气层,目前准确识别该类气层存在一定的困难。在分析低阻气层测井响应特征基础上,提出深侧向-孔隙度交会法、实测电阻率与视气水层电阻率重叠法结合解决低阻气层识别的难题。运用该方法对大牛地气田老井进行复查,见到好的效果,对大牛地气田的增储上产发挥了较大的作用。
With a wide distribution,Upper Paleozoic Shanxi Formation and Lower Shihezi Formation in Daniudi gasfield are well developed. Formation test indicates that there are much more low-resistivity gas reservoirs except conventional high-resistivity ones along with a further E & P of gasfield. Moreover,it is difficult to identify the low-resistivity reservoirs. In this paper,two methods of deep laterolog-porosity log and tested resitivity-apparent gas/water layer resistivity are proposed to deal with this identification on the basis of an analysis on log response characteristics,which has been applied to old wells to obtain a better result.
出处
《天然气勘探与开发》
2009年第3期12-14,18,共4页
Natural Gas Exploration and Development
关键词
低阻气层
测井响应特征
流体性质
识别
low-resistivity gas reservoir,log response characteristics,fluid property,identify
