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TABLE 3.1 <br />WELL CONSTRUCTION REQUIREMENTS <br />Hole Casing Cased Cemented <br />Casino Type Size (in) Siie (in) interval (ft) interval (ft) <br />Surface 14.75 10.75 0 - 50 0 - 50 <br />Longstring 9.875 7.63 0 - 2,122 0 :2,122 <br />injection Tubing 2.375 NA . NA <br />Production Tubing 2.375 NA NA • <br />The Longstring casing will be equipped with cement baskets to keep cement from falling back into <br />the hole during cement displacement. <br />Permit CO32210-00000 <br />PART iV. Area of Review, Corrective Action Plan (40 CFR §1 44.55) <br />Area Of Review (AOR) <br />Under 40 CFR §146.6, the area permit AOR may be a fixed distance of not less than one quarter <br />(1/4) mile outside of the UIC permit boundary or a circumscribing area in which the pressures in the <br />injection zone may cause the migration of the injection and /or formation fluid into a USDW. For this <br />area permit, the AOR is defined to be another quarter mile outside of the UIC permit boundary as <br />shown in Figure 1. <br />This AOR is considered conservative since the experiment is a recirculating process where the fluids <br />injected will also be taken up to surface and the increase in formation pressure is not the same as <br />that of typical injection projects. <br />Within the AOR, there are no drinking water wells, but Shell has seven monitoring wells and a gas <br />production well (Williams Company) also exist. An additional 19 wells will be installed prior to <br />operations. Below is a summary of relevant information regarding the existing and proposed wells <br />within the quarter mile AOR: - -- -- <br />TABLE 4.1 <br />AOR AND CORRECTIVE ACTION <br />EXISTING WELLS <br />Penetrate Total TOC CAP <br />Well Name Well Type Confining? Depth (ft) Depth (ft) Required (YINZ <br />135.4 - 296-14 Monitoring Yes 2,000 0 N <br />138 -4- 298 -14 Monitoring No 1,798 0 N <br />138 -4- 298 15 Monitoring No 1,542 • 0 N <br />138 -4- 298 -L6 Monitoring No 1,354 .0 N <br />138-4- 298 -L7 Monitoring No 1,134 0 N <br />138A-298-UT Monitoring No 960 0 N <br />32 -4 -298 Oil and Gas Yes . 11,064 0 N <br />OB04 (SAW) Monitoring Yes 2,342 0 • Y • <br />PROPOSED WELLS <br />10 . FINAL PERMIT Statement of Basis • <br />f <br />