核磁共振测井在东濮凹陷深层气评价中的应用  

Application of nuclear magnetic resonance logging to deep gas evaluation in Dongpu sag

作　　者：田素月[1] 孙灵芬[1] 

机构地区：[1]中原石油勘探局地球物理测井公司

出　　处：《油气地质与采收率》2003年第3期34-35,共2页Petroleum Geology and Recovery Efficiency

摘　　要：东濮凹陷深层气具有储层深、岩性细、致密、层薄、低孔隙度和低渗透率等特点。由于成岩作用的影响,电性曲线基值高,油气水层界限不分明,油气层与干层界限模糊,用常规的测井系列对深层气评价有一定的难度。笔者应用核磁共振技术从氢核的弛豫方面探测孔隙结构特点,分辨流体性质,并介绍了核磁测井在深层气解释评价方面的应用情况。The deep gas reservoir in Dongpu sag has features of deep, fine lithology, tight, thin, low porosity and low permeability. Because of the effect of diagenesis, the base value of resistivity curve is high, the bounds among oil, gas and water layers and among oilgas and dry layers are not clear. So it's quite difficult to evaluate deep gas using conventional welllogging series. Nuclear magnetic resonance technology is used in detecting pore structure from hydrogen nuclear relaxation and in distinguishing fluid property,and the application of this technology to deep gas interpretation and evaluation is introduced.

关 键 词：核磁共振测井 东濮凹陷 深层气评价 储层 孔喉半径 束缚水 截止值 孔隙结构 

分 类 号：P631.813[天文地球—地质矿产勘探] TE151[天文地球—地质学]