石油勘探与开发2017，Vol.44Issue(6)：989-996,8.DOI:10.11698/PED.2017.06.18
地层模块尺度钻井液侵入模拟与储集层电阻率剖面特征
Simulation of mud invasion and analysis of resistivity profile in sandstone formation module
摘要
Abstract
Aiming at the dynamic invasion process of drilling fluid,the parameters of the physical model in laboratory were optimized based on numerical simulation and then a physical simulation system for mud invasion in undisturbed zone was developed.Then,the experiment of fresh water invasion in sandstone formation was conducted to measure the radial resistivity and mudcake parameters over time,and a mudcake porosity and permeability calculation model with the invasion time was proposed based on the measurement.Finally,the numerical simulation results were compared and calibrated with the physical simulation results to find out the regularity of drilling fluid invasion under formation conditions.The results show that the mudcake forms quickly and the porosity and permeability of the mudcake decrease sharply after the beginning of drilling fluid invasion,and the invasion process is mainly controlled by the mudcake after a certain period.The mudcake parameters model developed in this study can depict the changes of mudcake parameters during the invasion process.The characteristics of radial resistivity profile under mud invasion are affected by sandstone physical properties,mudcake parameters and formation water salinity.关键词
钻井液侵入/物理模拟/数值模拟/泥饼/电阻率/孔隙度/渗透率Key words
mud invasion/physical modeling/numerical simulation/mudcake/resistivity/porosity/permeability分类
天文与地球科学引用本文复制引用
范宜仁,巫振观,吴飞,吴俊晨,王磊..地层模块尺度钻井液侵入模拟与储集层电阻率剖面特征[J].石油勘探与开发,2017,44(6):989-996,8.基金项目
国家自然科学基金项目(41474100,41674131,41574118) （41474100,41674131,41574118）
中央高校基本科研业务费专项资金资助项目(17CX06041,15CX06008A) （17CX06041,15CX06008A）
中国石油大学(华东)研究生创新工程(YCX2017004) （华东）
