05.07.2009
Instrument to measure the specific gravity of water
The area of geology that deals with the movement of groundwater in the soil and rocks
The movement of underground waters
Process of adding hydrogen
At standard temperature and pressure it is a colorless, odorless, nonmetallic, univalent, tasteless, highly flammable diatomic gas. Having been used as an ingredient in some rocket fuels for several decades, hydrogen, or more specifically H2, is now widely discussed in the context of energy. Hydrogen is not an energy source, since it is not an abundant natural resource and more energy is used to produce it than can be ultimately extracted from it. Hydrogen is obtained by splitting water (H2O) into hydrogen and oxygen. This action requires at least all the energy obtained from burning the hydrogen so that hydrogen is an energy transfer medium rather than a primary source of energy. Therefore, the use of hydrogen as an intermediate is justified only when there is some reason not to use the primary source directly (such as nuclear or solar power plant), while hydrogen can be used as a motor fuel so that the energy is likely to be generated far from where it is used and at a different time. The advantage of using hydrogen in vehicles is that when it is burned the main product is water
A colorless gas with an offensive stench that is said to smell like rotten eggs. The gas can be detected at a level of 2 parts per billion. It is measured by a hydrogen sulfur analyzer. Natural gas contains up to several percent of hydrogen sulfide and as such are called sour gas wells from their offensive stench.
The intention of the hydrogen sulphide (H2S) specification is to prevent excessive quantities of this odorous, corrosive and toxic component entering the INGL pipelines.
A power station that converts the gravitational energy of water into electrical energy.
Electrical energy generated by harnessing the power of moving – but not necessarily falling – water
The total volume of hydrocarbons estimated to be in place in an oil reservoir prior to commencement of production