Well my plan lasted about 30 minutes.

I had missed that Clifton unit 32 has been mothballed.  It is in a preserved state, requiring an estimated 12 hours to place it back in service.

Not running Clifton unit 32 would probably lower the B line throughput by about 70 MM/D.  Some of that 70 MM/D could be made up on the C and D in the configuration below.  My suggestion is for Gas Control to make a decision Wednesday morning if the unit will be needed for the Thursday cold weather.

Please let me know of any better ideas.


John

---------------------- Forwarded by John Sturn/ET&S/Enron on 10/22/2001 03:10 PM ---------------------------
From:	John Sturn on 10/22/2001 02:48 PM
To:	Team Beaver-Plant/ET&S/Enron@ENRON, Team Mullinville-Maintenance/ET&S/Enron@ENRON, Team Mullinville-Operations/ET&S/Enron@ENRON, Team Macksville/ET&S/Enron@ENRON, Team Cunningham/ET&S/Enron@ENRON, Team Bushton-Operations/ET&S/Enron@ENRON, Team Tescott/ET&S/Enron@ENRON, Team Clifton/ET&S/Enron@Enron, Team Beatrice-M&O/ET&S/Enron@ENRON, Team Palmyra-Plant/ET&S/Enron@Enron, Jesse Alvarado/Enron@EnronXGate, Roy Armitage/Enron@EnronXGate, Rodney Barnes/Enron@EnronXGate, Richard Barry/Enron@EnronXGate, Keith Braswell/Enron@EnronXGate, Rory Calhoun/Enron@EnronXGate, Steve Coash/Enron@EnronXGate, Jeffrey Cochran/Enron@EnronXGate, Helen Cummings/Enron@EnronXGate, Michael Ellington/Enron@EnronXGate, Jerry Graves/Enron@EnronXGate, Margaret Hall/ENRON@enronXgate, Crandal Hardy/Enron@EnronXGate, Gaynel Henley/Enron@EnronXGate, Bart Monden/Enron@EnronXGate, Jeff Moore/Enron@EnronXGate, Robert Munson/Enron@EnronXGate, Alan Muntz/Enron@EnronXGate, Ron Spain/Enron@EnronXGate, Edward Welsh/Enron@EnronXGate, Steven January/Enron@EnronXGate, Dale Ratliff/Enron@EnronXGate, Darrell Schoolcraft/Enron@EnronXGate, Gary Spraggins/Enron@EnronXGate
cc:	David Gaines/Enron@EnronXGate, Dean Hallowell/ET&S/Enron@ENRON, Greg Mall/ET&S/Enron@ENRON, Mike Peschka/ET&S/Enron@ENRON, Randy LeBeau/ET&S/Enron@ENRON, Fred Jordan/ET&S/Enron@ENRON, LD Stephens/Enron@EnronXGate, David Noyes/ET&S/Enron@ENRON, Ken Anderson/Enron@EnronXGate, Eric Faucheaux/Enron@EnronXGate, Perry Frazier/Enron@EnronXGate 

Subject:	Beaver to Bushton configuration without the Bushton turbine

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