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R~~O~~ <br />CDYVO(ILTIOM <br />C~ <br />the hole. After drilling 80 feet, the drilling rig was moved <br />to the next hole, because delivery of additional surface casing <br />was delayed. <br />After Wells GF-2 and GF-3 were completed, additional <br />surface casing was installed in Ldell GF-1 and reaming was com- <br />pleted to 640 feet. The well casing was installed and cemented.. <br />Flow from the annulus outside the 4-inch well casing did not <br />stop after cementing. Additional cement was added until flow <br />outside the well casing was stopped. After one day, flow was <br />again observed from outside the well casing. Nine days later, <br />1,000 gallons of cement slurry were added, and the flow from <br />outside the well casing was stopped, <br />Well GF-1 was completed within the 'Itaenty Mile Sand- <br />stone. The test interval consists of very fine, white, clean <br />• sandstone. Figure 3-4 indicates the test interval which is ex- <br />posed. Water levels from We11 GF-1 are from the indicated test <br />interval. <br />~ Well GF-2 <br />Well GF-2 was drilled to 488 feet. The well casing <br />and a one-inch flexible plastic tremie pipe were installed. <br />~ Cement was installed using the drilling rig injection pump. A <br />dilute cement mixture was used to avoid overstressing the plas- <br />tic tremie pipe. <br />Well GF-2 was completed within and just above the "R" <br />coal seam. The test interval consists of the coal and inter- <br />bedded sands and shales. Figure 3-4 indicates the GF-2 test <br />' interval on the geophysical log. Well GF-2 flowed at a very <br />low rate after completion. <br />• <br />3-12 <br />