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-.. <br />Evaluation of cement -American Soda #20-35 <br />CBL and CAST tools were run in the above listed well to evaluate the placement and quality of the cement slurry. CBL/CAST logs were run in both casings, from the base <br />of each string to surface or to the Fluid level in the casing string. A cement basket is positioned near the bottom of the shorter string and cement is placed in the annulus from <br />the cement basket to near surface. <br />The logs on this well indicate the following: <br />Depth Interval Description Isolation <br />Evaluation CAST <br />Impedance Value CAST <br />ImpedaoceCharacter CBL Pipe Amplitude MSG pipe signal <br />TD to 1,949' Free Pipe (long string) No isolation 1.9 Flat consistent 63, Free pipe value strong <br />],949' Cement BasAet N/A N/A N/A N/A N/A <br />1,949' to 1,940' Bentonite Plug Good 2+ Medium activity < free pipe value Faded Slightly <br />1,940' to 1,832' Conventional cement Good 2 - 5 Med. To high Activity Low, < 10 None <br />1,832' [0 1,690' Mixture o(Spherlite and conventional cmt Good I - 5 High Activity Low, < 10 None <br />1,690' [0 890' Consistent cement Good 2.5 - 5 Med. To high Activity Low, < 20 Faded to none <br />890' to 874' Partial cement and free Fluid Poor 1.8 - 3 Flat consistent in spots > good bonded sections Faded Slightly <br />874' [0 397' Consistent cement Good 2 - 3+ Med. To high Activity Low, < 20 Faded to none <br />397' [o [op of log Spherelite cement Fair <I - 2 Low activity, consistent < free pipe value Slightly Faded <br /> <br />