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AmerAlia, Inc. MWA-2 Dnlting and Completion Report <br />2. Siltstone and Sandy Uinta-Greco River vansitionrone, and A-Groove of the <br />Siltstone Parachute Creek Member. <br />3. Carbonate-rich Uinta-Green River transition zone, and A-Groove of the <br />Marlstone Parachute Creek Member. <br />I< ; gallons~'ton (gptj) <br />4. Carbonate•rich l pinta-Green River transition zone. and the R-8, and R-7 <br />Oil Shale (>- 3 gpt) (Mahogany) oil-shale zones of Parachute Creek <br /> Mcmbcr. <br />5. Volcanic tuff (deposited fi-8 and R-7 oil-shah zones of Parachute Creek <br />in water) Member. <br />A graphic summan• of gross lithology variations in MWA-2 is shown in Figure 6, which is based <br />nn data from fable >. for this figure. L.ithology ~ (volcanic tuff) is not included because this <br />lithology makes up onh• trace amounts of the total stratigraphic section. Also shown on Figure 6 <br />arc csnmatcd oil-content (gpt) values. as detincd by the general color of the rotary drill cuttings <br />)shades of darkness between light brown and gray and dark brown and black 1. Light-colored <br />cuttings have lower kerogen content than those with darker hues. Estimated shale-oil data also <br />are included in Table ~. <br /> <br />Penevation-rate data were collected by personnel from Daub R Associates, Inc.. and Lang <br />pcrsorutcl (see Tables I and 2. respectively). In Table 3, the elapsed time for drilling a 20-toot <br />rod length for shorter inten•al) includes the time to make the connection and to collect water- <br />dischargr and/or water-geochemistry data: thus, the penetration-rate numbers are "collective." In <br />'Table ~, the elapsed time is broken down into actual drilling time and the time to make a <br />connection. plus water sampling and maintenance time. Penetration-rate data from Tables I <br />and_ arc summarized graphically in Figures 7 and 8. respectively. <br />As documented in Table 3, the collective penetration rate varied considerably during drilling <br />(Figure 7), ranging between 9.7 and 81.8 feet per hour ttt/}trj, and averaging 28.9 ft/Itr. Rates <br />durint; drilling ~~f the 12.324-inch-diameter leg ('_0 to ~t47 tCCt 1 of the hole ranged from 10.9 to <br />57.1 fUhr, and averaged 31.0 fl/ttr. whereas collective penetration rates for the 6}-inch-diameter <br />4 <br />