Laserfiche WebLink
Weight: 1401b <br />Terminated with 2 Y-molded NK-27 Connector <br />Stress-Relief Anchor at top and bottom <br />Well Fluid Displacement <br />Upon completion of the seismic tests, ASLLP will displace the fluid in the top <br />ten feet of the cavity by injecting nitrogen, carbon dioxide, or methane gas on the <br />short 4'/s" tubing or the 7" casing and recovering the fluid from the 4'/z' long <br />tubing. The volume of gas and the volume of fluid will be measured. The <br />intertace between the gas and the fluid within the cavity will be determined by a <br />temperature profile down the 4'/2' long tubing on a systematic basis. <br />American Soda is currently evaluating the type of gas to be used in the <br />displacement. The gases that are currently proposed are nitrogen, carbon <br />dioxide, or methane. <br />Flow and pressure measurement instrumentation will be installed on the <br />well pad to measure the gas flow to the well and the gas injection pressure. <br />The instrumentation data will be included in the ASLLP process control <br />system. An average data point will be retrieved every 10 seconds. This data will <br />reside within the ASLLP PI Data Historian software for monitoring and <br />documentation. This system has the flexibility to provide data in any format <br />chosen. At present, ASLLP envisions providing daily averages for all measured <br />parameters for agency oversight. <br />Upon completion of the solution mining phase, approximately 200,000 <br />tons of nahcolite will have been produced. The cavity volume will contain 25 - <br />30 million gallons of fluid. This fluid will contain between 22 - 27 thousand tons <br />of nahcolite in solution. Assuming a 2 - 3% displacement (10-20 feet), <br />approximately 1,000,000 gallons of fluid will be displaced. This fluid will contain <br />approximately 972 tons of NaHCO3 in solution. At a displacement rate of 50 <br />gallons per minute, the displacement will take 12 - 18 days to complete. <br />Depending upon the gas selected, 176 - 487 tons of gas will be required to <br />displace the cavity. <br />Cavity Fluid Displacement Procedure <br />Upon completion of the seismic modeling phase, the fluid displacement <br />phase can be initiated. The procedures for displacing the fluid from a well are as <br />follows: <br />