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Enron Mail |
Rick,
Thanks. I understand that the ESD is an annual simulated emergency d= epressurization of the ETS compressor station on the lean and rich lines up= stream of the Bushton Plant. By operating the ESD valve, all the gas pipin= g in the plant yard can be blown to atmosphere by Northern. If that is don= e, the Bushton Plant obviously goes down and loses the ability to service i= ts customers for a period of time. =20 You advised that in ESD simulations conducted in years past, we did n= ot require the compressor to be fully blow down; we performed it in such a = way that no depressurization at all was required, so the Bushton Plant was = not out of service at all during the ESD simulations. This year, however, = someone in Northern's compliance section (maybe Pat Long's group) has requi= red that the ESD simulation be conducted in such a way that partial depress= urization of the yard piping will be necessary. Northern has figured out a= way to do this such that the flow of gas to the Bushton Plant will be unin= terrupted, with some small pressure changes. The ESD would normally last 15-30 minutes; however, Northern would als= o like to take the opportunity to perform needed work on the Northern gener= ators located at the ETS compressor station as well. This will extend the simulation per= iod to about two hours. During this time, Northern's measurement equipment= (the meters, the chromatograph, and the two Fisher Rocs) will be on batter= y backup. You mentioned that the big power hog would be the gas chromatogr= aph.=09 My gut is that we don't want to take any unnecessary chance that our ba= ck-up batteries would fail and leave us in a position where we had to rely = on Plant PTR. Accordingly, my suggestions is that we should immediately inv= estigate renting a Honda generator or some other back-up power source, and = call Jim Bowen of Instromet for his input. Please remember that although J= im was our expert in the arbitration, you don't want to just forward our in= ternal memos and correspondence to him without checking with me first. I await the input of others. (Parenthetically, for the time being, I am asking that everyone put "No= rthern v. ONEOK" in the Subject line of internal e-mails regarding gas meas= urement at the Bushton Plant, given that we still have a lawsuit pending. = This applies whether or not the e-mail includes someone in Legal.)=09 Britt =20 -----Original Message----- From: =09Kile, Rick =20 Sent:=09Tuesday, October 02, 2001 9:07 AM To:=09Davis, Britt; Cessac, Kenneth Cc:=09Charlie Thompson/GCO/Enron@ENRON; Gaines, David; Peschka, Mike; Winte= r, Casey Subject:=09Bushton ESD Yesterday I visited with Mike Peschka and Casey Winter at the Bushton compr= essor station, they mentioned a possible problem next week. On October 11 = the Bushton Plant will have a planned ESD. A normal ESD would blow all pip= ing down in the plant yard, so no gas would flow to the Oneok processing p= lant for a period of time. This year certain blowdown valves will be block= ed so gas will continue to flow to the Oneok processing plant, this will al= low the Oneok plant to stay on. Oneok requested that we maintain gas flows= to their plant, since they have no planned turn around this year. The Bus= hton measurement equipment will need to be functioning the entire time of t= he ESD (this includes the chromatograph, Fisher Rocs, and the ultrasonic me= ters), since gas will be flowing to the Oneok plant and back to us. While = the ETS compressor station is down, during the ESD, there will be work comp= leted on the electrical equipment. This work could take up to 5 hours, but= Casey hopes to complete the work in approximately 2 hours. The back-up ba= tteries will maintain power, to the measurement equipment, approximately 2 = hours. The potential problem is that if the work takes more than 2 hours t= he batteries may fail, and we could lose measurement for a period of time. = Considering the Oneok measurement situation, we thought it might make sens= e to notify you of this potential problem. Thanks, please call if you have= questions.
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