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DETERMINING CONTINUOUS CAPILLARY PRESSURE CURVES FOR SUBSURFACE EARTH FORMATIONS USING SATURATION AND NMR LOG DATA
DETERMINING CONTINUOUS CAPILLARY PRESSURE CURVES FOR SUBSURFACE EARTH FORMATIONS USING SATURATION AND NMR LOG DATA
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机译:利用饱和度和NMR测井资料确定地下地球形成的连续毛细压力曲线
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摘要
Continuous capillary pressure (Pc) curves of subsurface rock formations adjacent wells are determined based on translation relaxation time (T2) data from nuclear magnetic resonance (NMR) and from wireline well logs, such as resistivity logs, to obtain water saturation (Sw) of the rock in the formations. The T2 data and the hydrocarbon density, water density, free water level, and paleo-water level of the formation are processed to obtain parameters of Thomeer hyperbolas that closely conform to water saturation values obtained from the other well logs. The Thomeer hyperbolas so determined are converted to capillary pressure curves.
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