摘要
对水敏性泥页岩地层水化过程中电阻率、声波、密度、中子等岩石物理参数的变化规律进行了定性和半定量的理论分析,得出电阻率、声波、密度、中子等测井参数能从不同的角度反映钻井以后井眼周围岩石特性的变化,可作为现有评价水敏性泥页岩稳定性方法的有益补充。在定性地快速直观评价泥页岩地层的稳定性时最好选用声波、密度和中子孔隙度测井组合进行综合分析,而在定量评价水敏性泥页岩地层的膜特性及确定地层水性质时,电阻率测井曲线是一项重要资料。
During water sensitive shale formation hydrated time. Resistivity,acoustic wave,density, neutron law of change parameter of petrophysical property and so on are qualitatively and semi-quantitatively analysed. The log parameters in different way are comparative to the change of the stone feature around the well-bore drilled and are supplementaled for evaluating method in the stability of the water sensitive shale formation. It is the best way to select the compose of acoustic wave, density, porosity of neutron for comprehensive analysing in qualitatively and directly quick evaluating the stability of shale formation. The curve of resistive logging is an important imformation in qualitatively evaluating the features of formation membrane and formation water of water sensitive shale formation.
出处
《钻井液与完井液》
CAS
1998年第4期7-10,29,共5页
Drilling Fluid & Completion Fluid
关键词
泥页岩
地层水化
测井曲线
钻井液
Stability of Wellbore
Shale
Shale swelling
Water Sensitive
Logging Curve
