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CORE ANALYSIS <br />Pictured Cliffs Sandstone FM. <br />Date: Thursday, January 20, 1983 <br />Time: 4:00 p.m. <br />Teats by John Zellitti (279-2778) <br />Cores cut from Pictured Cliffs Sandstone for porosity and permeability <br />measurements. <br />Given: 3 inch core from the Picture Cliff SS cut with a core barrel. <br />Bedding at approximately 260 off horizontal. <br />~J <br />Sample approximately 18 inches in length from Drill Hole 13B. <br />Core is removed from a drill hole located on the Pueblo Coal, <br />Inc.'s land in Durango, Colorado. <br />Required: Determine porosity and permeability of this rock sample by ASTM <br />testing procedures. <br />Procedure: Used a 3/4 inch Diamond bit mounted on a 3/4 Hp rotary drill to <br />cut cores 3/4 inch in diameter and 1-1/4 inches in length. <br />Ten 1-1/4 inch cores are removed from the larger 3 inch core <br />sample which will be used to determine porosity (A) and <br />permeability (k). <br /> Cores are cut vertical and horizontal with respect to the core <br />• barrel and with respect to the bedding present in the sample <br />3 <br />