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Enron Mail |
Below is a system configuration I was asked to put together to flow 1600 MM/D through Clifton without the Bushton turbine.
A system weighted temperature of 29 F is forecasted for Thursday (vs 49 F normal) and the Bushton turbine is not scheduled to be back in-service until 11/01/01. A 29 F temperature is not so cold per say, but north sources such as Trailblazer (240 MM/D), Carlton (50 MM/D) and Redfield (on injection) are still in the summer mode. This could result in a high rate through Clifton. SOURCES Beaver C-D suction 170 Beaver KB suction 350 Net Mull interconnects -15 Cunningham 575 Bushton processing 540 Lyons -40 Pony Express 45 Trailblazer 240 CONFIGURATION Clifton flow A line 60 B line 210 C line 275 D line 475 E line 580 Total 1600 A Line - Bushton processing return free flowing to the A line with the two Palmyra A suction to B suction turbines compressing and the Palmyra A block valve open. B Line - Bushton compressing one unit processing plant recompress to B and cracking some to B. Clifton 32 B to B and two Beatrice B to B units, with 75 - 100 Trailblazer flowing to the B discharge. Palmyra compressing three units B to B or common B-C-D suction to D. C Line - Bushton compressing two units recompress to C. Pony Express flowing into the C line. Clifton and Beatrice three units C to C. Palmyra C-D or B-C-D suction to D. Bypass stream - Beaver compressing C-D suction and KB to D-E discharging 925 PSIG or higher. Mullinville bypassed. Cunningham flowing to an 800 PSIG Macksville E suction with Macksville turbines 2-3-4 discharging 950 PSIG or higher. Bushton controlling the D line pressure at Valve 4 to stay under 860 PSIG MAOP. D Line - Bushton bypassed on D. Clifton unit 30 D to D. Beatrice units 23 - 25 D to D with about 150 MM/D of Trailblazer flowing into the D suction. Palmyra B-C-D or C-D suction to D. E Line - Bushton bypassed on E. Tescott unit 5, Clifton unit 31 and Beatrice unit 27 E to E. Palmyra regulating E to B-C. THIS MEANS? Be sure that the required units are ready to run. If not, let me and Gas Control know ASAP. There are alternatives to the above depending on actual conditions. On 10/17/01, Clifton averaged 1418 MM/d with Tescott D to D and Clifton D-E to E. If anyone has thoughts or comments, please let me know. John
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