[1]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(03):256-260.
 ZHANG Jinyan,LIU Haihe,LIU Wei.Application of NMR Data to Evaluation of Deep Glutenite Pore Structure and Reservoir Validity[J].WELL LOGGING TECHNOLOGY,2012,36(03):256-260.
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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()
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《测井技术》[ISSN:1004-1338/CN:61-1223/TE]

卷:
第36卷
期数:
2012年03期
页码:
256-260
栏目:
处理解释
出版日期:
2012-06-29

文章信息/Info

Title:
Application of NMR Data to Evaluation of Deep Glutenite Pore Structure and Reservoir Validity
作者:
张晋言刘海河刘伟
中国石化胜利石油管理局测井公司, 山东 东营 257096
Author(s):
ZHANG JinyanLIU HaiheLIU Wei
Shengli Well Logging Company, Shengli Oil Administration, SINOPEC, Dongying, Shandong 257096, China
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
Keywords:
NMR logging glutenite microcosmic feature of reservoir pore structure reservoir validity algorithm
分类号:
P631.81
文献标志码:
A
摘要:
采用孔隙度和渗透率乘积的开方作为输入参数求取转换系数,再利用最大汞饱和度可以确定核磁共振测井T2谱与压汞曲线之间的纵向转换系数(核磁共振测井T2谱积分曲线乘以最大汞饱和度),实现拟合毛细管压力曲线。连续定量求取反映储层孔喉大小、储层孔喉分选性、储层孔喉连通性的中值压力、排驱压力、最大汞饱和度、半径均值、变异系数、孔喉歪度、均值系数、岩性系数、分选系数、峰态、孔隙结构系数、标准差等18个储层微观尺度结构特征参数,在仔细甄别每个参数多种计算方法与压汞实验结果匹配效果的基础上逐一建立了相应的计算参数模型。模型提高了计算精度,还可以定量分析储层孔喉半径分布。应用储层宏观尺度参数、微观尺度参数构造储层质量综合指数可以直观有效地评价储层质量,在实际生产中获得了很好的效果。
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 distribution. The reservoir quality aggregate index derived from the reservoir macro and micro parameters is better for reservoir validity evaluation.

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备注/Memo

备注/Memo:
作者简介: 张晋言,男,1965年生,高级工程师,从事测井资料解释研究和管理工作。
更新日期/Last Update: 2012-06-20