同济大学学报(自然科学版)2011,Vol.39Issue(9):1365-1372,8.DOI:10.3969/j.issn.0253-374x.2011.09.021
考虑岩石结构的砂砾岩有效储层测井判识方法
Identification Method of Effective Reservoir for Glutenite Body Using Well Logging Based on Rock Texture
摘要
Abstract
This paper deals with the research on Yanjia region ghitenite body of the upper Es4 in the northern steep slope zone of Dongying Depression. Effective reservoir samples are taken by core drilling, formation testing and gas logging data, and observing the relationship among the core, thin section and image logging, it is found that the effective reservoir appears as well sorted pebbly sandstone and conglomeratic sandstone in macroscale and microscale. The simulating of digital core also indicates that the difference of pore configuration which is derived from different rock textures is the major impact factor for electric resistivity response, so various rock textures should be well considered when identify the validity of reservoir using well logging. Therefore, during the dataprocessing,detailed identification of rock textures by image model of image logging, based on automatic layering of conventional logging curve and automatic identification of lithologic category by means of logging fades cluster method, is indispensable. With the newly double constrains of rock texture and lower limit of electrical property on effective reservoir, this semi-quantitative method is preliminarily proposed to be a preferable application for multi-information identification of effective reservoir.关键词
岩石结构/砂砾岩/成像测井/测井相/数字岩心Key words
rock texture/glutenite/image logging/logging facies/digital rock分类
天文与地球科学引用本文复制引用
闫建平,蔡进功,赵铭海,李尊芝..考虑岩石结构的砂砾岩有效储层测井判识方法[J].同济大学学报(自然科学版),2011,39(9):1365-1372,8.基金项目
国家自然科学基金(40872089) (40872089)
河南省生物遗迹与成矿过程重点实验室基金(OTMP0902) (OTMP0902)