05.07.2009
Unmanned vehicle, piloted and powered via umbilical, used for subsea surveys and operations
A remotely controlled block valve for the primary purpose of protecting segments of the line in the event of a catastrophic pipeline break.
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After 2D seismic data has been carried out, processed and interpreted, relinquishment is often required by the O&G Company back to the licensing authority of part of the less interesting area whilst the most prospective areas are identified and maintained for further focus
Electric system reliability has two components: adequacy and security. Adequacy is the ability of the electric system to supply the electrical demand and energy requirements of the customers at all times, taking into account scheduled and unscheduled outages of system facilities. Security is the ability of the electric system to withstand sudden disturbances, such as electric short circuits or unanticipated loss of system facilities. The degree of reliability may be measured by the frequency, duration and magnitude of adverse effects on consumer services
Relative permeability is the ratio of effective permeability of a particular fluid at a particular saturation to absolute permeability of that fluid at total saturation. If a single fluid is present in a rock, its relative permeability is 1.0. Calculation of relative permeability allows for comparison of the different abilities of fluids to flow in the presence of each other, since the presence of more than one fluid generally inhibits flow. See also permeability