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_ _ _ ~, <br />connection with the cavity was made. <br />• c. The vertical recovery well plugged off during the early development of cavity <br />#3. The well was brought on several days later by pumping wash water down the dilution <br />string at the same time the plant pumps were on line. It is believed that accumulated <br />debris at the base of the vertical recovery well had plugged off the flow channel entering <br />the wellbore. No similar problems have occurred since. <br />d. Two sonar :surveys and two temperature logs were taken on the sonar <br />access well. Problems were encountered similar to the first sonar access well when the <br />bottom 3-5 feet of casing mras found bent. This caused numerous problems in getting any <br />wireline tools down into the cavity. Running a stiff string mill across the deviated section <br />opened up the wellbore enough to get the sonar tool past the shoe of the casing. <br />e. A sonar survey was attempted on the vertical recoveery well for cavity #3 <br />• (WRNM 26-93-1 V). Problems with debris kept the tool from getting into the cavity to see <br />_r` ~ development had taken place. <br />t <br />f. A pullback was made in cavity #2 from the end of the extension to 400' <br />~rds the injection well. A total of 11,397 tons were extracted from the 400' section <br />~t~e~hloride contamination jumped to an unacceptable level. Mining from the cavity <br />~ostponed and production shifted to cavity #3. <br />\g. In an attempt to recover some of thq rem. ~ning production from cavity #2, <br />~ was set and two sets of perforations were she into the 7" liner. Then 4 1/2" <br />~~as placed inside the liner and a packer set between the perforations. It was <br />,~t by pumping down the 4 112" casing and out the far set of pertorations, the <br />~`~ 11 <br />~!!-_ <br />~-.:. <br />...:,r ' = <br />M <br />