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AmerAha. Inc MWB-2 Dolling and Completion Repor <br />STRA"t'tGRAPNIC INTERCEPTS <br />MWB-? spudded in surface colluvium and soil that was excavated during construction of Dri11 <br />Pad 2 (a negligible thickness of less than 5 feed and penetrated approximately 990 feet of the <br />Uinta Formation (includinc tongues of the Green River Formations, all of the R-8 Zone (990 to <br />1,184 feed all of the A-Groove (1,184 to 1,198 feet), all of the Mahogany 7.one 11,198 to <br />1,377 fecQ of the Parachute Creek Member. all of the B-Groove (1.377 to 1,397.5 feet) and a <br />trivial amount of the R-G Zone 1 1.397.5 to 1,398 fcctl. 'these stratigraphic intercepts aze based <br />on'\4WB-2 rotan• drill cutting data and geoph}•sical-log data from .4merAlia Well itiW'D-2, <br />which is located on Pad ~ about lQ0 feet away from'v1W6-2 <br />I.I TIIOLU(:l <br />,Vthough cuttings were collected and described only between I,U9S and 1,398 feet (TD) in <br />~4WI3-2, a good understanding of the total lithologic variability of the stratigraphic section in <br />this well can be obtained by use of cuttings descriptions from nearby M W,4.2 (cuttings were <br />described from surface to 1.198 feet). The composite data from MWA-? and'v1W8-2 show that <br />rive major lithologies exist bcnveen the surface and 1.398 feet (top of the R•6 Zonc). <br /> l.itholuav Dominant Stratirranhic Occurrence <br />1 Sandstone and Surface colluvium and Uinta-Green River transition <br /> Silh• Sandstone zone. <br />2. Siltstonc and Smtdy Uinta-Green River transition zone, and the .4- and B- <br /> Siltstone Grooves of the Parachute Creek Member. <br />3. Carbonate-rich Uinta-Green River transition zone, and the R-8 Zone, <br /> Alarlstonc A-Groove, Mahogany Zone, and B-Groove of the <br /> (< 3 gallonslton [gp[]) Parachute Creek Member. <br />4. Carbonate-rich Uinta-Green River transition zone, and the R-8 7_onc, <br /> Oil Shale (~ 3 gpt) A-Groove. ~tahogan}~ Tone. B-Groove, and R-ti "Lone <br /> of the Parachute Crcck Member. <br />5. Volcanic tuff (deposited R-8 and Mahogany Zones of Parachute Creek Member. <br /> in warcrl <br /> <br />