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MIT Procedure STIG111 Well NCPA Lodi Facility Temperature and Bottomhole Pressure Survey i I Wednesday, January 7,2007 1. The well should be shut in at least 24 hours prior to conducting the temperature/pressure - - survey.- 2. Welaco Well Analysis Corp. of Bakersfield California will provide the electric line wireline logging unit including the temperature/pressure recording tool. The wireline -truck will arrive on Wednesday, January 7� and left at the NCPA Lodi Facility site over night so that work can begin at 7:00 AM the next day. Thursday, January 8,2007 1. Begin rigging up the lubricator and wireline logging unit at approximately 7:00 AM. Normally after 24 hours of shut-in the wellhead pressure will be on a vacuum with the fluid level at or near the surface. 2. The logging tool will consist of a collar log above the temperature tool, which is in turn above the pressure tool. The bottom of the pressure tool will be depth datum, zeroed at KB elevation. The temperature sensor in the temperature tool is located approximately 3 feet above the bottom of the pressure tool. The bottom of the pressure tool is the reference point for depth measurements. 3. The temperature survey will consist of two passes. Begin running the tool downhole at approximately 8:00 AM and conduct the first pass temperature log. The first pass will be made while running the tool in the hole at approximately 50 feet per minute. 4. Tag bottom and record the depth. Bottom tagged on the previous December, 2005 survey was at 4,558 feet. Set the tool ata depth of 4,100 feet KB. 5. Inject plant waste water at a constant rate of 100 gpm for approximately 1 hour, beginning at approximately at 9:30 AM and completing injection at approximately 10:30 AM. Injection water will be pumped from the plant's injection water storage tank by two triplex pumps through a single cartridge system and into the well. Perform an instantaneous shut in and record the bottom hole pressure. and temperature for approximately 5 hours. 6. At approximately 3:30 PM begin the second temperature survey pass while pulling out of the hole at approximately 50 feet per minute to surface. 7. Logging.should be completed by about 5:00 PM. A field copy of the temperature logs should be supplied to NCPA's consultant, Fairchild and Wells. In addition, the digital temperature and pressure data should be supplied to Fairchild and Wells, Inc. on a floppy diskette or CD on site. 8. Rig down the wireline unit and release the well to the plant. Job estimated to be complete by about 6:00 PM. Prepared 1-17-2007 Page 3 of Prepared by.Fairchild and Wells,Inc.