Any gaseous substance introduced into or commingled with natural gas that increased the volume available for disposition. Such substances include, but are not limited to, propane-air, refinery gas, coke-oven gas, still gas, manufactured gas, biomass gas, or air or inerts added for Btu stabilization.
Systems used in industry to monitor and control plant status and provide logging facilities. In the transmission and distribution of natural gas, the SCADA systems can assimilate gas flow control and measurement with other accounting, billing, and contract systems to provide a comprehensive measurement and control system for the transmission/distribution network. This allows accurate, timely information on the status of the network to ensure efficient and effective service at all times. >
A very large ship designed to transport more than 500,000 deadweight tonnage of oil.
The concept that the oldest rock layers are at the bottom of a sequence with younger rock layers deposited on top of them. This can be considered a rule that applies in all situations, except where the rocks are extremely deformed
