© 2010 The Gas Company. All copyright and trademark rights reserved.
How Southern California Gas
Uses Predictive Analytics
© 2010 The Gas Company. All copyright and trademark rights reserved. Gregg Arney
Sempra Energy
• Number 232 on the Fortune 500
• 2007 revenues $11.5 billion
• 13,500 employees & 29 million
customers
• Sempra Global
• Sempra Generation
• Sempra Pipelines & Storage
• Sempra LNG
• Sempra Utilities
• San Diego Gas & Electric (SDG&E)
SoCalGas - Distribution
• Began in 1867 as LA Gas Company (street lights)
• Now largest US natural gas distribution utility
• 23,000 square mile service territory
• 20.3 million customers
• 5.7 million gas meters
SoCalGas - Transmission
•
Operate and maintain 3500 miles of transmission pipeline•
Serve 179 Non-Core customers•
Receive deliveries from 65 independent gas producersSoCalGas - Storage 6
•
131 BCF or 4% of National total•
Largest Storage in Western US•
4 Storage Fields•
100,000 total horsepowerIndustry Issues
•
Aging equipment, minimal equipment standards•
Silver tsunami•
Large amounts of data to analyzeImpact of Equipment Failure on a Gas Pipeline
Our goal is to maintain the market commitment we’ve made.
Losses of throughput puts our ability to meet contractual obligations at risk.
We need to catch things quickly or prevent them entirely.
Southern California Gas Company Goals and Objectives for Advanced Diagnostic Systems
•
SoCalGas has performance monitoring programs in place•
Catching events between performance tests•
PLC annunciation andalarms do not always catch problems
•
There is a need of a moreadvanced strategy to minimize downtime by:
•
Preventing failures altogether•
Capture events early to minimize damage•
Allow maintenancedepartment to schedule work
Incorporating Early Warning Into Your Daily Routine
© 2010 The Gas Company. All copyright and trademark rights reserved. John Thompson
SmartSignal on Delaval Engine & Compressor Sets
Honor Rancho Storage Field
•
37 wells, 43 BCF (23.5 BCF working)•
5 ea 20 cyl Delaval recips•
27000 horsepower•
2 stage compression (600 -> 3500 psi)•
250MMSCF/day injection•
1 billion withdrawal with TEG Dehy (7#/MM)PI Powers Our Users
•
SCADA system is more secure•
PI bridges data to corporate network•
VPN accessLocal Plant LAN
Local HMI DIO AIO Remote HMI RSVIEW Server/Client PI Server CORP Network PI Buffer & Network Bridge Gateway to Pipeling Operations WAN
VPN PLC
OASyS = Gas Operations
Process
SCADA System
JCT 12/5/2007
PI Scope/Scale
•
6 PI servers - 1 at each field on SCADA and 2 CEMS•
Collection connected to the facility SCADA (I-FIX)•
Approximately 8000 tags across the four fields•
Archives established in late 2005 and early 2006•
Bridges the more secure SCADA network to the more accessible CORP network including VPNTechnology Infrastructure
Sensor
PLC
iFIX
Hit #1 = Temp Sensor(s) on MU3 Aftercooler Heat Exchangers
Hit #2 = Report 88 – MU3, Comp#6 Cracked Valve Plate
Hit #3 = Turbo Analysis (MU3 performance degradation)
Using SmartSignal on: Aliso Turbine
21
REFERENCE DRAWINGS: LEGEND: REV DESCRIPTION DATE P = PRESSURE BY SOCAL GAS CO ALISO CANYON DEHYDRATION UNIT 3 CHK DWG: B A L = LEVEL PD = PRESS DIFF T = TEMPERATURE
ISSUED FOR CLIENT COMMENT
NOTE:
1. ALL TAGS HAVE THE SUFFIX OF “_DY3”
04/01/10 SOCAL_ALISO_DEHYU3 WET GAS IN V-308 GLYCOL CONTACTOR WET GLYCOL PIT-6336 PIT-6337 RICH GLYCOL FILTER F-300 PDIT-6316 RICH GLYCOL FILTER F-301 PDIT-6319 E-301 E-302 PDIT-6371 H-300 GLYCOL REBOILER DRY GLYCOL V-311 STILL WET GLYCOL LIT-6340 TIT-6354 TIT-6344 PIT-6347 SURGE TANK P P-308 A/B F-302 PDIT-6309 A B FIT-6320 CW E-304 TY-6307 TIT-6307 TIC-6307_SP DEHYDRATED GAS TO SALES DRY GLYCOL LIC-6303_SP LIT-6303 LY-6303 PDIT-6306 PIT-6305 TIT-6302
B ISSUED FOR CLIENT COMMENT 05/04/10
75KW TY-6354 E-303 TIC-6354_SP TIT-6351 V-317 COAL-ESCER TIT-6330 FIT-PCP_4613 AIT-6401 E-501B TIT-586 TY-586 TIC-586_SP LIC-1790_SP LIT-1790 LY-1790 PDIT-2387 V-105 COLD SEP LY-109 LIT-109 LIC-109_SP V-301 INLET SCRUB LY-301 LIT-301 LIC-301_SP LIC-1791_SP LY-1791 LIT-1791 WET HP GAS FROM PLANTS CONDENSATE DRIP POT LEVELS COOLING WATER
TIT-681 DP-314 DP-315 DP-316 LIT-1794 LY-1794 LIC-1794_SP LIT-1795 LY-1795 LIC-1795_SP LIT-1796 LY-1796 LIC-1796_SP REFLUX TO V-310 (OVHD SEP) FIT-6358 COMPRESSED VAPOR RECOVERY FY-6320
Change Management Engine/Combustion Analysis (Gregg Arney’s group) Storage Technical Services (John Thompson)
Storage Field O&M
•Plant Operators (12-hr shifts, 7 days a week) •Maintenance Mechanics (daytime, 5 days a week)
Value Predictive Analytics Provides
Q&A
John C. Thompson
Electrical & Instrumentation Advisor Underground Storage Operations Southern California Gas Company
[email protected] Tim Snyder Solution Consultant SmartSignal Corporation [email protected] www.smartsignal.com Gregg Arney
Team Leader - Air Quality and Compressor Services Gas Engineering
Southern California Gas Company
Heathcliff Howland
Field Service Engineer OSIsoft