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Water saturation and sand fraction determination from borehole resistivity imaging tool, transverse induction logging and tensorial water saturation model
Water saturation and sand fraction determination from borehole resistivity imaging tool, transverse induction logging and tensorial water saturation model
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机译:利用井眼电阻率成像工具,横向感应测井和张量水饱和度模型确定水饱和度和含砂量
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摘要
In the oilreservoir with sandstone, the total porosity of a formation, including a fractional volume of the shale, and a resistivity of the shale are determined, in a laminated reservoir including sands that may have dispersed shales therein. A tensor petrophysical model determines the laminar shale volume and laminar sand conductivity from vertical and horizontal conductivities derived from multi-component induction log data. The volume of dispersed shale and the total and effective porosities of the laminar sand fraction are determined using a Thomas-Stieber-Juhasz approach. Removal of laminar shale conductivity and porosity effects reduces the laminated shaly sand problem to a single dispersed shaly sand model to which the Waxman-Smits equation can be applied.
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