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Enron Mail |
Cc: james.haden@enron.com
Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Bcc: james.haden@enron.com X-From: Greg Brazaitis X-To: Roger Balog, Gerald Nemec, Lee L Papayoti X-cc: James R Haden X-bcc: X-Folder: \Gerald_Nemec_Dec2000_June2001_1\Notes Folders\Notes inbox X-Origin: NEMEC-G X-FileName: gnemec.nsf One of the responses by Constellation/Pace to the Firm Transportation Draft is the volume stipulated in Article 3.1. Our position in the draft was that we had the right to refuse receipt of gas into the new lateral that is below 5,000 MCF/D. The number was based upon our belief that the ultasonic meters that would be installed in the new pipeline had this value as its lower limit of accuracy. Upon further investigation, however, we have discovered that the value is actually higher. Tom Cathy of Hanover Measurement indicates that HPL is willing to accept a pipeline velocity that is significantly below what most would consider standard industry practice for ultrasonics. We would accept a minimum flow rate of 3 feet per second. At 3 fps the minimum flow rate would be: 8,200 MCF/D @ 600 psig, 9,500 MCF/D @ 700 psig and 10,800 MCF/D at 800 psig. Cathy points out, however, that the industry standard velocity would be 10 fps. At 10 fps the minimum acceptable flow rate for our ultrasonic measurement would be: 27,000 MCF/d @ 600 psig, 31,900 MCF/D @ 700 psig and 36,400 MCF/D @ 800 psig. Our hydraulics indicate that to meet the Rio Nogales Power Plant minimum inlet pressure of 540 psig, the minimum receipt pressure at Prarie Lea (to meet full load requirements from either HPL or Oasis) would need to be 778 psig. At PG&E it would be 622 psig. Based upon the above facts, I recommend that we change our requirement in Article 3.1 to be 36,400 MCF/D @ 800 psig. Please review and comment.
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