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<br />Evaluation of cement -American Soda #20-74 <br />CBL and CAST tools were mn in the above listed well to evaluate the placement and quality of [he cement slurry. CBL/CAST logs were run in both casings, from the base <br />of each string [o surface or to the fluid level in the casing string. A cement basket is positioned near [he bottom of the shorter string and cement is placed in the annulus from <br />the cement basket to near surface. <br />The logs on [his well indicate the following: <br />Depth Interval Description Isolation <br />Evaluation CAST <br />Impedance Value CAST <br />Impedance Character CBL Pipe Amplitude MSG pipe signal <br />TD [0 1,910' Free Pipe (long string) No isolation I.5 Flat consistent 63, Free pipe value strong <br />1,910' Cement Basket N/A N/A N/A N/A N/A <br />1,910' to 1,906' Bentonite Plug Good 2 Medium activity < free pipe value Faded Slightly <br />1,906 to 1,888' Unknown ?? Poor?? I - 2 Low activity Very near Gee pipe Strong <br />1,888' [0 1,690' Conventional cement Good 2 - 4 Medium activity Low, < 10 to < 30 Faded to none <br />1,690' to 1,556' Mixture of Spherlite and conventional cmt Good I - 5 Htgh Activity Low, < 10 None <br />1,556' [0 1,520' Partial cement and free Ouid Poor 2 - 3 Flat consistent in spots > good bonded sections Faded Slightly <br />1,520' [0 1,184' Mixture o(Spherlite and conventional cmt Good 1 - 4 Medium Activity Low, < I S Faded to none <br />1,184' to I, 154' Partial cement and free fluid Poor 15 Flat consistent in spots High, almost free value Strong <br />1,154' [0 1,030' Consistent cement Good 2 - 3 Med. To high Activity 10 to 30 Faded <br />1,030' [0 1,008' Partial cement and Gee Ouid Poor I.5 Flat consistent in spots » good banded sections Strong <br />1,008' to 815' Consistent cement Good 2.5 - 3.5 Med. To high Activity Low, < 20 Faded <br />815' [0 775' Panial cement and free Fluid Poor I.5 - 3 Flat consistent in spots > good bonded sections Faded Slightly <br />775' to 586' Consistent cement Good 2 - 3+ Med. To high Activity 10 - 30 Faded to none <br />586' [0 550' Partial cement and Gee Fluid Poor I.5 - 2 Flat consistent in spots Near Gee in spots Strong <br />550' [0 250' Mixture of Spherlite and conventional cmt Good 1 - 4 Med. To high Activity Low, < 20 Faded to none <br />250' [0 158' Spherelite cement Fair <I - 2 Low activity, consistent < free pipe value Slightly Faded <br />158' to top of log Mixture of Spherlite and conventional cm[ Good I - 4 Med. To high Activity < free pipe value Slightly Faded <br /> <br />