Oil and gas production handbook An introduction to oil and gas production

 
Figure 35. Information management system topology 
 
For oil and gas, IMS functionality includes:  
•  Oil & gas production reporting 
• Safety 
management 
• Maintenance 
• Operator 
support 
•  Overall systems integrated and external 
•  Historical data, including post failure "flight recorder" data 
Some of the applications provided by an IMS system may be: 

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•  Drilling data acquisition and drilling data logging 
• Electronic 
shift 
logbook 
• Operator 
procedures 
• Chemical 
injection 
• Chemical 
consumption 
•  Laboratory analysis registration 
•  Alarm and incidents overview 
• Alarm 
Statistics 
•  Valve leakage test 
• Transmitter 
surveillance 
•  Run time monitoring 
• Block 
log 
• Production 
plan 
•  SIL statistics report 
•  Subsea valve signatures 
•  Production overview and prognosis 
• Valve 
verification 
•  ESD/PSD verification, including shutdown analysis 
• Data 
export 
•  Data browser tool 
•  Historical data and current trend 
• Well 
test 
•  Daily production report with metering data 
•  Volumes in storage cells and consolidation of produced stored and 
dispatched volumes. 
• Environmental 
reports 
•  Polynomial allocation (oil/gas/water) based on well test results 
8.2.5 Training simulators 
Training simulators are used to 
provide operator training in a 
realistic plant training 
environment. They use the 
actual control and safety 
applications of the plant, 
running on operator stations. 
Plant models simulate the 
feedback from the plant in real 
time, or in fast or slow motion. 
Training simulator applications 
include functions for backup and 
reload, including recreation of historical information and snapshots. Offsite 

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training facilities are often connected (read only) to the live plant to provide 
information from the real operating situation. 
8.3  Power generation, distribution and drives 
Power can be provided from mains power, 
local gas turbines or diesel generator sets. 
Large facilities have high power demands, 
from 30 MW up to several hundred MW. 
There is a tendency to generate electric 
power centrally and use electric drives for 
large equipment rather than multiple gas 
turbines, as this decreases maintenance 
and increases uptime.  
 
The power generation system on a large 
facility is usually several gas turbines 
driving electric generators, 20-40 MW 
each. Exhaust heat is often needed in the 
main process.