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Energy carriers are produced by the energy sector using primary energy sources. In the field of energetics, an energy carrier is produced by human technology from a primary energy source. Only the energy sector uses primary energy sources. Other sectors of society use an energy carrier to perform useful activities (end-uses). [3]
In petroleum geology, source rock is rock which has generated hydrocarbons or which could generate hydrocarbons. [1] Source rocks are one of the necessary elements of a working petroleum system . They are organic-rich sediments that may have been deposited in a variety of environments including deep water marine , lacustrine and deltaic .
The International Recommendations for Energy Statistics (IRES) prefers total energy supply (TES) to refer to this indicator. [4] These expressions are often used to describe the total energy supply of a national territory. Secondary energy is a carrier of energy, such as electricity. These are produced by conversion from a primary energy source.
Schematic unconventional reservoir classification expressed as fluid energy vs flow potential based on initials without stimulation. Unconventional (oil and gas) reservoirs, or unconventional resources (resource plays) are accumulations where oil and gas phases are tightly bound to the rock fabric by strong capillary forces, requiring specialized measures for evaluation and extraction.
Sources of natural hydrogen include: [13] degassing of deep hydrogen from Earth's crust and mantle; [14] reaction of water with ultrabasic rocks (serpentinisation); water in contact with reducing agents in Earth's mantle; weathering – water in contact with freshly exposed rock surfaces; decomposition of hydroxyl ions in the structure of minerals;
Energy development is the field of activities focused on obtaining sources of energy from natural resources. [citation needed] These activities include the production of renewable, nuclear, and fossil fuel derived sources of energy, and for the recovery and reuse of energy that would otherwise be wasted.
In terms of source rock analysis, several facts need to be established. Firstly, the question of whether there actually is any source rock in the area must be answered. . Delineation and identification of potential source rocks depends on studies of the local stratigraphy, palaeogeography and sedimentology to determine the likelihood of organic-rich sediments having been deposited in the
Compressed-air-energy storage (CAES) is a way to store energy for later use using compressed air. At a utility scale, energy generated during periods of low demand can be released during peak load periods. [1] The first utility-scale CAES project was in the Huntorf power plant in Elsfleth, Germany, and is still operational as of 2024. [2]