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Enron Mail |
FYI
---------------------- Forwarded by Susan Scott/ET&S/Enron on 05/03/2000=20 08:44 AM --------------------------- James Pfeffer@ENRON_DEVELOPMENT 05/03/2000 08:00 AM To: Michel Nelson/ET&S/Enron@ENRON, John R Keller/OTS/Enron@Enron, Ray=20 Smith/ET&S/Enron@ENRON, Lorraine Lindberg/ET&S/Enron@ENRON, Arnold L=20 Eisenstein/ENRON_DEVELOPMENT@ENRON_DEVELOPMENT, Steven=20 Harris/ET&S/Enron@ENRON, James Pfeffer/ENRON_DEVELOPMENT@ENRON_DEVELOPMENT,= =20 Rich Jolly/ET&S/Enron@ENRON, Jeffery Fawcett/ET&S/Enron@ENRON, Rich=20 Plachy/Enron Communications@Enron Communications, David=20 Roensch/ET&S/Enron@ENRON, Team Gallup/ET&S/Enron@ENRON, Ronald=20 Matthews/ET&S/Enron@ENRON, Earl Chanley/ET&S/Enron@Enron, Vera=20 Jones/ET&S/Enron@ENRON, Brian H Mellon/ENRON_DEVELOPMENT@ENRON_DEVELOPMENT,= =20 John G Keller@EES, Phil Lowry@ENRON, Darrell Schoolcraft@ENRON, Susan=20 Scott@ENRON, Kevin Hyatt@ENRON cc: =20 Subject: Gallup - Status Update, May 4, AM The suction strainer was removed last night. The piping spool was=20 reinstalled without the major compressor alignment problems that were=20 expected. This significantly reduced the downtime necessary for the remova= l=20 of the suction strainer. No major foreign materials were found in the strainer. Some small weld bea= ds=20 were found. There were some signs that the strainer may have been vibratin= g. Several compressor test runs were made early this AM to measure the vibrati= on=20 levels without the suction strainer. The high frequency vibration was=20 reduced to safe levels. There is no longer any risk to the unit piping=20 integrity. The compressor bearing vibration did not decrease due to the removal of the= =20 strainer. Rolls will continue to assess the collected vibration data to=20 determine the cause of the high drive end bearing vibration and construct a= =20 game plan. The station once again became available for service around 4 AM. The=20 compressor may or may not be run dependent on need. Gallup Ops and Gas=20 Control are in close contact. The station will be manned if the compressor is running due to Gas Control= =20 being unable to send remote setpoints to the station controller. The probl= em=20 stems from OPTO-22 not supporting the particular Modbus function required t= o=20 send setpoints. This is a =01+lack of functionality=01, in the new LCM4 ve= rsion=20 controllers/software utilized on the Gallup Project. =20 EECC has been in contact with OPTO-22 to determine the time table for=20 resolving this problem. EECC, TW Ops are working on a temporary fix to=20 enable Gas Control to send remote setpoints to Gallup. Gas Control is=20 currently able to monitor data from Gallup. Some instrumentation will be replaced today that failed due to the high=20 vibration over the fast few days. Final tuning of the station control loops and surge control will be also be= =20 conducted today. James Pfeffer
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