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Tomography Well TM 4 <br />• Drill a nominal 17 1/2" diameter hole a minimum 80 feet. <br />• Run 11.75", 47 #, J-55 casing to 80 feet and cement with "Neat Cement" to surface. <br />• Nipple up BOP and wait on cement a minimum of 4 hours. Pressure test BOP. <br />• Drill out through the surface conductor with a 10.625" diameter bit using mud or aerated <br />mud. Advance the drill hole to 1900 feet (casing point). The casing point location must <br />be within a 2 ft. radius relative to the staked surface location. <br />• Condition hole and run 7.625", 26.4#, J-55 casing with a guide/float shoe to 1900 feet. <br />• Rig up for nitrogen aerated cement job. Cement casing to surface <br />• Wait on cement 12 hours. <br />• Trip in the hole with 6.25" bit and dress off cement and make 10 feet of new hole. <br />• Trip out of the hole and run a Cement Bond Log. <br />• Trip into the hole with a 6.25" bit and drill with mud/aerated mud from 1910' to a <br />maximum depth of 2400 feet. <br />• Circulate and condition the hole for 1 hour and trip out of the hole. <br />• Run 1.5" DH-2500 Fiberglass Tubing from 2400 feet to 1950 feet with a changeover to <br />1.9", 2.76#, J-55, IJ steel tubing to surface. <br />• Rig up for cement. Cement from Total Depth to 1800 feet. <br />T-1P (Production Well) <br />• Drill a 17 %2 -in diameter hole a minimum of 80 feet <br />• Run 80', 13 3/8-in OD, 61#, J-55 Surface Casing. <br />• Cement with "Neat Cement" to surface. <br />• Nipple up BOP and wait on cement a minimum of 4 hours. Pressure test BOP. <br />• Drill out from surface casing with a 12 %4-in diameter bit and using directional drilling <br />tools to hit a target at a True Vertical Depth (TVD) of 2015 ft. within a 2 ft. radius of the <br />surface coordinates. <br />• Circulate to clean and condition hole. Trip out of the hole. <br />• Run 9 5/8-in casing to 2015'. The bottom 80 feet (1935-2015 ft.) will be P-110, 53.5# <br />casing and the remaining 1935 feet will be 36#, J55. <br />• Rig up for nitrogen aerated cement job. Cement casing to surface. <br />• Wait on cement for 12 hours, prepare to drill out of casing with 8 3/8-in bit. <br />• Drill cement shoe and 10 feet on new hole and trip out of the hole. <br />• Run CBL/CCL and evaluate results. Do a remedial cement job if warranted. <br />• If re-cementing was required, drill out the cement pocket below 9 5/8-in shoe and drill 3 <br />feet of new formation <br />• Perform a formation Integrity Test to 1100 psi. <br />• Directional drill the 8 3/8-in hole to a depth of 2256 ft. within a 2 ft. radius of the surface <br />coordinates. <br />• Circulate and condition the hole. Install directional ranging tools. <br />• Rig down and move to T-1H well. <br />T-111 (Heater Well) <br />Drill a 17 '/2 -in diameter hole a minimum of 80 feet. <br />Run 80', 13 3/8-in OD, 61#, J-55 Surface Casing. <br />Cement with "Neat Cement" to surface. <br />7