摘要
Abstract
Because of salt mud invasion it is difficult to identify reservoir fluids in the beach area.Based on theoretical research, established is an array induction logging dynamic intrusion response model and developed is a time-lapse logging numerical simulation software. This method can analyze the impact of 18 parameters on the array induction logging responses, such as permeability, porosity, saturation, mud salinity, formation water salinity, formation and wellbore pressure, etc.. Given are the characteristics of the dynamic changes of radial resistivity distribution,mud invasion depth, log response, water saturation, formation water resistivity, formation water salinity with the mud soaking time. Provided is quantitative identification reservoir with log data.Through the time-lapse simulation and response analysis of 78 layers of 11 wells in Liaohe region,the quantitative interpretation standard of the reservoir has been determined, the coincidence rate of which is increased by 10％, therefore the difficult problems are solved about low resistivity oil and gas layer identification in the beach area. Log application show the above method is a new approach for reservoir fluid identification.关键词
测井解释/时间推移/泥浆侵入/矿化度/电阻率/浸泡时间/动态变化Key words
log interpretation/ time-lapse/ mud invasion/ salinity/ resistivity/ soaking time/ dynamic change分类
天文与地球科学
