Laserfiche WebLink
basis. These wells provide one up-gradient (WW-11) and three down-gradient ground <br />water sampling locations. <br />Surface water samples are taken and flow rates are estimated monthly at two locations. <br />These are at the outflow of water from the mine entrance and at the most downstream <br />point on the Colony property of the East Middle Fork of Parachute Creek. Sampling of <br />the East Middle Fork of the Parachute Creek is subject to stream flow. There is generally <br />no stream flow leaving the Colony property. This monitoring program has detected no <br />change in ground and surface water quality. <br />Operational Considerations: <br />The mine entries and mine bench at the Colony Shale Oil Project were selected for this <br />experimental work because the area provides easy access to oil shale. The ElectrofracTM <br />experiments planned for the Colony site are a relatively small-scale operation and the <br />operational considerations associated are enumerated below. <br />Land Disturbance: No land disturbances outside the already established mine <br />bench will occur. The existing ElectrofracTM fractures created under TR11 will be used <br />for this activity. <br />Drilling: Since the existing ElectrofracTm fractures will be utilized, there will be <br />no drilling outside the scope of TR 11, for the operations associated with these tests. <br />Water Discharges: Since the existing ElectrofracT`u fractures will be utilized, <br />there will be no water usages, outside the scope of TR 11, associated with these tests. <br />Borehole abandonment: Since the existing ElectrofracTm fractures will be <br />utilized, no additional boreholes, outside the scope of TR 11, will be required. Boreholes <br />drilled under TR11, when no longer needed, will be abandoned by sealing them with <br />standard oil-field cement. <br />. Equipment: The following equipment will be required for this experiment: <br />• Lighting for work inside the commercial mine. <br />• Portable electric generator to energize the fracture. <br />• Readout/recording equipment for temperature and electrical sensors. <br />• Readout/recording equipment for safety electrical monitors. <br />Environmental Protection: <br />With no conversion of oil shale to oil and gas, no hydrocarbons would be released to the <br />environment. Nevertheless, the atmosphere in the mine will be tested twice during each <br />work shift for both safety and environmental reasons. <br />Timing for Experimental Work: <br />Pending DRMS approval, ExxonMobil plans to perform these tests in 2010 - 2011. <br />Technical Revision Submittal