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An,erAlia, Inc. <br />Ll lllOLOGI' <br />MWD-2 Drilling and CompleLOn Report <br />Although cuttings were collected and described only bet,veen 1;295 and 1.703 feet (1'D) in <br />MWD-2, a good understanding of the total lithologic variability of the stratigraphic section in <br />this,vcll can be obtained by evaluating cutting descriptions from nearby R•11VA-2 (cuttings were <br />descrifxd from surface to L19R fcetl and \111'B-' (cuttings,vere described from 1.095 to <br />1,39R fecU. "Ihe composite data from !+111`A-2. \1WR-?. and M11'D-2 sho,+' that five major <br />lithologies exist between the surface and 1.703 feet (L-5L.onel. <br />LitholoQ Dominant StratiQranhic Qccurrcnyc <br />I. Sandstone and Surface rolluvium and Uinta-(irccn River transition <br />Slh\' tiandtilOnl' LOOC. <br />2. Sihs[one and Sandy Uinta-Green River transition zone. and the A- and <br />Siltstone E3-Grooves ol'the Parachute Creek \1ember. <br />3. Carbonate-rich Uinta-Green River transition zone, and the R-K lone, <br />Marlstone .4-Groove. \tahogsny!_onc, t3-Groove. and L-5 Zone <br />(< 3 gallons; ton [gptJ) of the Parachute Creek Mymhrr. <br />4. Carbonate-rich Uinta-Green River trattsitii>n zone, and the R-A Zone, <br />Oil Shale (~ 3 gpU :1-Groovy. Mahogany Lune. B-Groove, R-G /.one, and <br /> L-5Lony of the Parachute Creek (\temhyr. <br />5, Volcanic tufC(dcposuyd li-8 and Maltogatty 7.ones of !'arachuty Crcck \-temhcr. <br />in water) <br />A graphic summary of gross lithology variations in hf\b'D-2 benvecn 1?95 and 1.703 feet is <br />shown in Figure G, which is based on data from 7~ahle 5. For this figure. (.ithology 5 (volcanic <br />tu(il is nat included because this rock type makes up only trace amounts of the total stratigraphic <br />see[ion. :also shown in Figure (, art' estimatyd oil-content (gpU calues.:is dyfined by the general <br />color of the rotary drill cuttings (shades of darkness between light bro++n, gray, dark brown and <br />black 1. Light-culoryd cuttings have lower kyrogen contents than those with darker hues. <br />Eslimatcd shalt'-nil data also arc includyd in fable 5. <br />a <br />