Laserfiche WebLink
f' <br />8 POINT PLAN NSI 7H-2I <br />INJECTION WELL FOR CAVITY 7H <br />1) Estimated tops of important geologic markers are shown on attachment #1. The <br />diagram shown on this attachment details the depths of the formations and zones <br />of interest in this azea. Well IRI-1 is the closest well to the planned horizontal <br />wells to be drilled and was selected to represent what will be found in either of the <br />new wells. <br />2) The estimated tops of water bearing zones aze shown below. <br />Aquifer Depth <br />Perched 450 <br />A-Groove 1420 <br />B-Groove 1610 ' <br />Dissolution Surface 1920 <br />3) Per item 6.3.1 of the NSI Mine Plan, a BOP (Blow Out Preventer) or annular <br />preventer will be used. The working pressure of such a device must be greater <br />than 1.0 times TVD (True Vertical Depth) of the long string casing setting depth. <br />Drilling within the Boies Bed, after the access casing is cemented into the Boies <br />Bed roof, does not require the use of a preventer unless air or mist drilling is <br />initiated. <br />A typical preventer arrangement that accompanies a drilling rig is shown on <br />attachment #2. All or part of the arrangement will be used to meet the <br />requirements of the NSI Mine Plan. <br />Preventer will be tested each day and before each trip to a minimum of 150 psi. <br />4) Casing Plan: <br />De th Size Wei t T e Cement Volume <br />0-60 ft. 10-3/4 " 40.5 # K-55 Cement to Surface <br />0-2250 ft. 7-5/8 " 26.4 # K-55 Foam Cement to surface 483 cu. ft.) <br />2200-3600 ft 5-1/2 " 17 # K-55 Sus ended from 7-5/8 shoe to TD <br />