Regulation (demand)

In energy generation and provision, regulation can refer to the process of increasing or decreasing capacity in the system in response to changes in customer requirements. This type of regulation usually occurs at generating facilities, although the capacity of transmission and distribution systems can also be regulated

Reliability of electricity supply; electricity reliability

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 …

Re-running; rerunning; Rerun tower

Rerunning is a general term covering the redistillation of any material and usually indicating that a large part of the material is distilled overhead. A rerun tower may be associated with a crude distillation unit that produces wide boiling range naphtha as an overhead product. By separating the wide-cut fraction into light and heavy naphtha, …

Reserve estimate (Proven reserves, probable reserves, possible reserves)

Usually when prospects are risked O&G companies end up with three risk numbers: the P10 or P3, P50 or P2 and the P90 or P1 reserve estimates. Each estimate assumes varying reservoir parameters. The P10 or P3 are the most optimistic and the P90 or P1 are the least optimistic with the P50 and P2 …

Recoverable resources, recoverable oil

Recoverable resources are the subset of the total resource base that is thought to be technically recoverable; the technology exists to make its extraction possible. This subset is further divided into discovered and undiscovered resources. Discovered recoverable resources are those in a known location. That is, those reservoirs that geologists have actually located through exploration. …

Prospective resources; Undiscovered resources

  Prospective resources are those deposits that are estimated, on a given date, to be potentially recoverable form undiscovered accumulations. Frequently, this may be in areas where geoscience and engineering data are unable to clearly define the area. Undiscovered resources are those deposits that have not been pinpointed, but are generally expected to exist based …