摘要
核磁共振测井是唯一能够提供原油粘度信息的测井。通过对某地区6桶油样进行核磁共振测量与分析,建立了弛豫时间T2与粘度的关系,其相关系数达到0·966,以此关系式可以利用核磁共振测井来估算地下原油粘度。在分析了油样T2分布随温度变化情况后,可以根据T2分布的形态判断稠油类储层的流体性质。
Nuclear magnetic resonance ( NMR) logging is the only logging for providing information on oil viscosity. The relationship between T_2 and viscosity is established by using NMR measurement with 6 barrels of oil samples, its correlation coefficient is 0.966, based on it NMR logging can be used to estimate oil viscosity. After T_2 changing with temperature is analyzed, fluid properties of viscous reservoirs can be established based the distribution of T_2.
出处
《石油天然气学报》
CAS
CSCD
北大核心
2006年第5期82-84,共3页
Journal of Oil and Gas Technology
关键词
核磁测井
原油粘度
驰豫时间
温度校正
nuclear magnetic logging
crude oil viscosity
relaxation time
temperature correction
