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technique. Details of the program components is provided in the following <br />discussion: <br />Visual Observation At Surface <br />WRN personnel will visually inspect the annulus area between the production <br />casing and the surface erasing to monitor the presence of the casing pack. If the <br />surface of the casing pack drops below a point where it can not be visually <br />observed, additional casing pack will be added to re-establish the casing pack to <br />a point where it can be observed. Quantities of mud pack required to maintain <br />the level to surface are recorded to evaluate leakage. <br />Temperature Logs <br />Baseline temperature logs are nin in the cased production hole immediately <br />following completion. 13ot water is circulated between the production wells <br />under normal operating conditions for a period of at least 24 to 48 hours. Next, <br />circulation is discontinued, and a temperature log is run in both wells over a <br />"cool down" period to establish a series of temperature profiles that can identify <br />significant fluid movemE:nt through vertical channels adjacent to the well bore. <br />The temperature logs are analyzed and compared to baseline temperature logs to <br />demonstrate the competency of the casing pack. Any voids in the casing pack <br />will show up on the log:> as cooler spots. Observation of the casing pack at <br />35 <br />