How To Use Predictive Analytics On A Gas Plant

Transcription

1 How Southern California Gas Uses Predictive Analytics 2010 The Gas Company. All copyright and trademark rights reserved.

2 Gregg Arney 2010 The Gas Company. All copyright and trademark rights reserved.

3 Sempra Energy Number 232 on the Fortune 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) Southern California Gas (SoCalGas)

4 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 45,000+ miles of pipe

5 SoCalGas - Transmission Operate and maintain 3500 miles of transmission pipeline Serve 179 Non-Core customers Receive deliveries from 65 independent gas producers

6 SoCalGas - Storage 131 BCF or 4% of National total Largest Storage in Western US 4 Storage Fields 100,000 total horsepower 6

7 Industry Issues Aging equipment, minimal equipment standards Silver tsunami Large amounts of data to analyze

8 Impact 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.

9 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 and alarms do not always catch problems There is a need of a more advanced strategy to minimize downtime by: Preventing failures altogether Capture events early to minimize damage Allow maintenance department to schedule work

10 Incorporating Early Warning Into Your Daily Routine

11 John Thompson 2010 The Gas Company. All copyright and trademark rights reserved.

12 SmartSignal on Delaval Engine & Compressor Sets Honor Rancho Storage Field 37 wells, 43 BCF (23.5 BCF working) 5 ea 20 cyl Delaval recips horsepower 2 stage compression (600 -> 3500 psi) 250MMSCF/day injection 1 billion withdrawal with TEG Dehy (7#/MM) 7 Management, 22 Non-Management

13 PI Powers Our Users SCADA system is more secure PI bridges data to corporate network VPN access Process Local HMI DIO AIO PLC Local Plant LAN SCADA System Remote HMI RSVIEW Server/Client PI Buffer & Network Bridge PI Server CORP Network OASyS = Gas Operations Gateway to Pipelining Pipeling Operations WAN VPN JCT 12/5/2007

14 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 VPN

15 All Storage Overview

16 Technology Infrastructure Sensor PLC ifix PI

17 Hit #1 = Temp Sensor(s) on MU3 Aftercooler Heat Exchangers

18 Hit #2 = Report 88 MU3, Comp#6 Cracked Valve Plate

19 Hit #3 = Turbo Analysis (MU3 performance degradation)

20 Using SmartSignal on: Aliso Turbine Driven Compressors & Dehydration Plant

21 Aliso Turbine Driven Compressors 21

22 CONDENSATE DRIP POT LEVELS COOLING WATER TIT-6354 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 TIT-681 TIT-6351 TY-6354 E-303 COMPRESSED VAPOR RECOVERY FIT-6358 REFLUX TO V-310 (OVHD SEP) V-311 STILL TIC-6354_SP SURGE TANK P PIT-6347 TIC-6307_SP H-300 GLYCOL REBOILER LIT-6340 WET GLYCOL DEHYDRATED GAS TO SALES FIT-PCP_4613 AIT-6401 PDIT-6306 PIT-6305 V-308 GLYCOL CONTACTOR DRY GLYCOL LY-6303 TY-6307 TIT-6307 CW E-304 PDIT-6309 F-302 FIT-6320 FY-6320 PIT-6336 PIT-6337 A B P-308 A/B TIT-6330 PDIT-6371 DRY GLYCOL TIT KW TIT-6302 LIC-6303_SP PDIT-6316 PDIT-6319 TIT-586 WET GAS IN LIT-6303 WET GLYCOL F-300 RICH GLYCOL FILTER F-301 RICH GLYCOL FILTER E-301 E-302 LY-1791 E-501B TIC-586_SP LIC-1791_SP TY-586 V-317 COAL- ESCER LIT-1791 V-105 COLD SEP V-301 INLET SCRUB WET HP GAS FROM PLANTS PDIT-2387 LIT-1790 LIT-109 LIT-301 LIC-1790_SP LY-109 LY-301 NOTE: 1. ALL TAGS HAVE THE SUFFIX OF _DY3 LY-1790 LIC-109_SP LIC-301_SP REFERENCE DRAWINGS: LEGEND: REV BY CHK DESCRIPTION DATE L = LEVEL A ISSUED FOR CLIENT COMMENT 04/01/10 SOCAL GAS CO ALISO CANYON P = PRESSURE PD = PRESS DIFF B ISSUED FOR CLIENT COMMENT 05/04/10 DEHYDRATION UNIT 3 T = TEMPERATURE DWG: SOCAL_ALISO_DEHYU3 B

23 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)

24 Value Predictive Analytics Provides Problem Repairs Fixed

25 Q&A John C. Thompson Electrical & Instrumentation Advisor Underground Storage Operations Southern California Gas Company Gregg Arney Team Leader - Air Quality and Compressor S Gas Engineering Southern California Gas Company garney@semprautilities.com Tim Snyder Solution Consultant SmartSignal Corporation tsnyder@smartsignal.com Heathcliff Howland Field Service Engineer OSIsoft hhowland@osisoft.com