Includes natural gas from deep wells, coalbed methane, tar, shale, tight sands and other sources that are more difficult and costly to develop than conventional sources. Indeed, tightening global oil supply, regional tightening in gas supply and demand growth have resulted in an ever increasing interest in the exploitation of unconventional hydrocarbons. The development of deepwater offshore fields and tar sands require prices of $60 – $80 a barrel to be viable
Unconventional hydrocarbons is a term that covers a wide-ranging array of resources, such as heavy oil, tight gas, shale oil, coal bed methane
A broad class of hydrocarbon deposits of a type (such as gas in tight sandstones, gas shales and coal-bed gas) that historically have not been produced using traditional development methods
A term used when referring to sediment that has not been lithified into a rock.
A sand formation in which individual grains do not adhere to one another. If an unconsolidated sandstone produces oil or gas, it will produce sand as well if not controlled or corrected.
Contact between two rock units of significantly different ages. An unconformity is a gap in the time record for that location. If reservoir beds beneath an unconformity are tilted, and impermeable beds above the unconformity form a seal, then a trapping geometry results. An unconformity trap is a type of hydrocarbon trap whose closing is controlled by the presence of an unconformity.
Disaggregating electric utility service into its basic components and offering each component separately for sale with separate rates for each component. For example, generation, transmission and distribution could be unbundled and offered as discrete services
