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A Method For Determining Formation Permeability From Well Lo
Data from logs which are commonly employed in salt mud systems can be used to determine formation permeability. An empirical correlation of apparent residual oil saturations computed from well log data and permeabilities from whole core analyses has been useful in evaluating San Andres formations in West Texas. A simple method for determining formation permeability from well log data is of considerable assistance in evaluating the producing potential of a well or in making reservoir studies where few core data are available. In the following discussion a permeabilitity interpretation technique is described which uses as its data source logs which are commonly employed in salt mud systems. They are the focused microdevices (Microlaterolog or FoRxo), an independent porosity measuring device (Sonic or Neutron), and a device for measuring Rt (Laterolog or Guard).
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