摘要
在南海西部油田的油气勘探中,经常钻遇大量的CO2等非烃类气。根据CO2与烃类气的物理性质差异,利用不同测井资料计算的视孔隙度差异来识别CO2,并根据图版估算CO2含量,结果得到了录井资料、取样分析资料的验证,该方法在南海西部油田取得了良好的应用效果。
In oil and gas exploration of western South China Sea,a lot of non-hydrocarbon gas such as CO2 may often discovered during drilling.According to the difference of physical property between CO2 and hydrocarbon gas,CO2 may be identified using apparent porosity difference calculated from different logging data.Its content is able to be estimated by chart.Results are verified by mud logging and sampling analysis.A better application to oilfields in western South China Sea has been obtained.
出处
《天然气勘探与开发》
2012年第4期34-35,76,共3页
Natural Gas Exploration and Development
关键词
烃类气
CO2
测井
声波时差
hydrocarbon gas,CO2,well-logging,acoustic interval transit time
