WSP04818 - Laserfiche WebLink

Home Browse Search

PdxUpd4 9 4 ~ <s;(p 191 CF-- S~:k'h?7, - l?~~ .)LU~-;+ 4-01-94 U.S.B.R. DURANGO PROJECTS OFFICE PARADOX VALLEY UNIT - CRBSCP Operations FY94- Oct.1 to April 1.1994 A 30 day continuous injection of 70% Brine at a rate of 325 gpm was accomplished from 10/03/93 to 11/03/93. This injection test was very encouraging as the maximum pressure reached was 4360 psig surface. During this injection period mechanical testing of isolation valves continued, and system failsafes were tuned. Electrical problems were resolved with replacement and tuning of drive motor components. A six-week continuous injection of 70% Brine, at a rate of 400 gpm was accomplished from 1/18/94 to 3/02/94. This injection test was also encouraging as the maximum pressure reached was 4690 psig surface. Seismic studies indicated the injectate was moving northwesterly, relative to known block faulting, and in a downward trend from the injection zone. This seismic activity extended approximately 600 meters from the wellbore. Following the six-week injection period a review of all isolation valves tested was made and inconel clad valves were ordered for long term service. The valves necessary to sustain long term injection are scheduled to be installed and tested by mid June 94. FY 94-95 Operations Plan Our reservoir engineers have indicated that a six-month continuous injection period will provide sufficient data to establish a base line life expectency of the reservoir. The current plan is to staff temporary personnel sufficient to maintain continous injection for six-months. The schedule start date is mid to late July, allowing time to recruit and train Operators and Maintence Workers. This additional staff must receive up to 8-weeks of training to qualify as Operators. The six-month injection period for reservoir data will conclude in early February 1995. As reports are completed and decisions made we expect to continue with operations and to transfer the facilities to full O&M by 10-01-95, 00(1528