12.05.2014 Views

Oil and gas production handbook - Process Control and ...

Oil and gas production handbook - Process Control and ...

Oil and gas production handbook - Process Control and ...

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

• Safety report, including shutdown analysis<br />

• Operation logs<br />

• Operator Procedures<br />

• Laboratory data & data from administrative systems.<br />

5.1.8 Training Simulators<br />

Training Simulators are used to<br />

provide realistic operator training<br />

in a realistic plant training<br />

environment. Training simulators<br />

uses the actual control <strong>and</strong> safety<br />

applications of the plant, running in<br />

operator stations. Plant models<br />

simulate the feedback from the<br />

plant in real time or fast/slow<br />

motion. The training simulator<br />

applications include functions for<br />

backup <strong>and</strong> reload including<br />

recreation of historical information <strong>and</strong> snapshots. Offsite training facilities are often<br />

connected (read only) to the live plant to give information from the real operating<br />

situation.<br />

5.2 Power generation <strong>and</strong> distribution<br />

Power can be provided from mains power or from local diesel generator sets. Large<br />

facilities have great power dem<strong>and</strong>s, from 30 MW <strong>and</strong> upwards to several hundred<br />

MW. There is a tendency to generate electric power centrally <strong>and</strong> use electric drives<br />

for large equipment rather than multiple <strong>gas</strong> turbines, as this decreases maintenance<br />

<strong>and</strong> increases uptime.<br />

The power generation system on a large<br />

facility is usually several <strong>gas</strong> turbines diving<br />

electric generators, 20-40 MW each. If<br />

exhaust heat is not needed in the main process,<br />

it can be used to drive exhaust steam turbines<br />

(so called dual cycle) for additional efficiency.<br />

Voltage levels for High, Medium <strong>and</strong> Low<br />

voltage distribution boards are 13- 130kV, 2-8<br />

kV <strong>and</strong> 300-600 V respectively. Power is<br />

generated <strong>and</strong> exchanged with mains or other<br />

facilities on the HV distribution board. Relays<br />

69

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!