测井技术2012，Vol.36Issue(3)：256-260,5.
核磁共振测井在深层砂砾岩孔隙结构及有效性评价中的应用
Application of NMR Data to Evaluation of Deep Glutenite Pore Structure and Reservoir Validity
张晋言 1刘海河 1刘伟1
作者信息
- 1. 中国石化胜利石油管理局测井公司,山东东营257096
- 折叠
摘要
Abstract
Capillary pressure curve and T2 spectrum have high correlation. The radication of product of porosity and permeability is used as input parameter to obtain the conversion factor C, then the maximum mercury saturation is used to determine the longitudinal conversion coefficient D between NMR T2 spectrum and intrusive mercury curve (i. e. , T2 integral curve times the maximum mercury saturation). and finally, acquiring the fitting capillary pressure curve. 18 microcosmic pore structure parameters, which reflect the reservoir pore throat sizes, sortings and connectivity are quantitatively and continously obtained, such as expulsion pressure, maximum mercury saturation, average radius, lithology coefficient) sorting coefficient, and the like. The corresponding parameters estimating models have been built on the basis of analyzing and comparing multiple pore structure algorithms and intrusive mercury tests. The models have higher calculation accuracy, and may be used to quantitatively analyze the reservoir pore throat radius distributioa The reservoir quality aggregate index derived from the reservoir macro and micro parameters is better for reservoir validity evaluation.
关键词
核磁共振测井/砂砾岩/储层微观特征/孔隙结构/储层有效性/计算方法Key words
NMR logging/glutenite/microcosmic feature of reservoir/pore structure/reservoir validity/algorithm分类
天文与地球科学引用本文复制引用
张晋言,刘海河,刘伟..核磁共振测井在深层砂砾岩孔隙结构及有效性评价中的应用[J].测井技术,2012,36(3):256-260,5.
