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METHOD FOR DETERMINING FORMATION POROSITY AND GAS SATURATION IN A GAS RESERVOIR
METHOD FOR DETERMINING FORMATION POROSITY AND GAS SATURATION IN A GAS RESERVOIR
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机译:气藏中地层孔隙度和气饱和度测定方法
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摘要
Measurements made with porosity and density logging tools in a gas reservoir may differ due to invasion effects. The effects are particularly large on measurement-while-drilling applications where invasion is minimal. Using a Monte-Carlo method, a relationship is established between true formation porosity and porosity estimates from density and porosity tools. This relationship is used on real data to get an improved estimate of formation porosity and of gas saturation.
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