测井技术2017,Vol.41Issue(4):412-415,4.
白云岩储层电成像视地层水电阻率流体识别技术
Fluid Identification Technique Based on Imaging Apparent Formation Water Resistivity in Dolomite Reservoirs
摘要
Abstract
Micro-electric imaging logging with high resolution and borehole coverage, can detect information of flushed zone and, to a certain extent, reflect fluid distribution of formations near borehole.Associated with variable bond index m and effective porosity by conventional logging, an apparent formation water resistivity distribution spectrum is developed using imaging logging data, and the mean and variance are extracted to make a cross-plot, then a reservoir fluid property identification chart is established, which plays an important role in fluid identification of low porosity-permeability limestone reservoirs.In this paper, characteristics of the spectrum of different fluid-bearing reservoirs and non-reservoirs are compared, by their characteristic parameters and the relevant porosity, a fluid identification chart for extremely low porosity-permeability dolomite reservoirs of the area is developed, which gets a gas layer identification coincidence of 91.7%, excluded the interruption that the spectrum of formation water resistivity of non-reservoirs is similar to gas reservoirs, so showing a good application result in eastern Tarim carbonate reservoirs.关键词
测井解释/碳酸盐岩/电成像测井/视地层水电阻率/流体识别Key words
log interpretation/carbonate reservoir/micro-electric imaging logging/apparent formation water resistivity/fluid identification分类
天文与地球科学引用本文复制引用
李庆峰,李晓峰,刘岩..白云岩储层电成像视地层水电阻率流体识别技术[J].测井技术,2017,41(4):412-415,4.基金项目
大庆油田有限责任公司塔东区块下古生界碳酸盐岩储层测井评价技术研究项目(201505011) (201505011)