Figure 8 largest four fields performance q s

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Figure 8 – Largest Four Fields’ Performance q S Injection + q i Water Influx = q (o,w) Prod. + q CB + q e Efflux + q ob + q z (Process) m Injection + m Water Influx = m (o,w)Prod. + m CB + m Efflux + m Z(Accumulation) Input - Output = Accumulation Produced Liquids & Gases m o q f m w q w m cb q cb Overburden Losses, o Fluid Efflux m e q e Injected Steam m s q s Fluid Influx m i q i Liquid Region Steam Figure 9 – Heat and Mass Balance Date 4/1/1993 4/1/1994 4/1/1995 4/1/1996 4/1/1997 4/1/1998 4/1/1999 MMBTU/Day 0 500 1000 1500 2000 2500 Calc. w/TO Wells Vogel (no prod losses) Vogel (w/prod losses) ChevronTexaco Template Injection Figure 10 – Comparison of Analysis Methods Date 1/1/92 7/1/92 1/1/93 7/1/93 1/1/94 7/1/94 1/1/95 7/1/95 1/1/96 7/1/96 1/1/97 BOPD/Active Well 0 5 10 15 20 25 30 35 40 Project Total BSPD 0 2500 5000 7500 10000 12500 15000 17500 20000 BOPD/Active Well Project BSPD Heat Requirement Figure 11 – Example Reduction in Excessive Steam Rate
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8 SPE 84848 Date 1/1/99 7/1/99 1/1/00 7/1/00 1/1/01 7/1/01 BOPD 0 2000 4000 6000 8000 BSPD 0 2000 4000 6000 8000 10000 12000 14000 16000 First Reduction: 15,000 to 8,000 BSPD Second Reduction: 8,000 to 4,000 BSPD Figure 12 – Impact of Heat Management Year 1975 1980 1985 1990 1995 2000 Bbl/Day 1000 10000 Active Producers 0 100 200 300 400 500 BOPD BSPD Active Prod. Figure 13 – No Response to Increased Steam and Well Count
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