H
Glossaire :Heat pump [...] Hydropower
- Heat pump (see the French definition )
- A system in which the energy from warm water can be used by increasing its temperature through a small amount of energy.
- Heat-transfer fluid (see the French definition )
- A heat-transfer fluid is a gas or liquid that can transfer heat from point A to point B. Heat-transfer fluids are used in most manufacturing facilities in the energy field.
- Heating value (see the French definition )
- The heating value of a fuel is the amount of heat released during combustion. It is expressed in kWh or in MJ per cubic meter.
- Horizontal drilling (see the French definition )
- Horizontal drilling, as its name suggests, takes place horizontally in the reservoir. This method is a way of significantly improving well productivity, especially in thinner layers because a lot more oil can be recovered with just one well. The distance that can be covered by horizontal drilling can reach up to 4 km.
- Hubbert peak theory (peak oil) (see the French definition )
- Hubbert’s peak for oil and gas corresponds to the moment when the oil and gas supply will start to fall while demand will continue to rise.
- Humic acid (see the French definition )
- Acid product produced by plant decay that is present in soil humus.
- Hydraulic fracturing (see the French definition )
- By injecting water at high pressure, fissures are made in the reservoir rock. The hydrocarbons will then be able to flow more easily through these fissures towards the production well.
- Hydrocarbon (see the French definition )
- Hydrocarbons are substances that only contain carbon and hydrogen. They are the main components of crude oil and gas, as well as petroleum products.
- Hydrocracking (see the French definition )
- Hydrocracking is a petrochemical process used to convert heavy oil products into lighter products at high temperatures by injecting hydrogen.
- Hydrogen (see the French definition )
- The lightest atom and the most abundant element in the universe. Hydrogen forms water when combined with oxygen (H20).
- Hydrolysis (see the French definition )
- The hydrolysis of a substance is its decompostion by water through ions H3O+ and OH- resulting from the dissociation of water.
- Hydrophone (see the French definition )
- A hydrophone is a wave receiver and the marine equivalent of the geophone (which is used on land). Seismic recordings can be made from a boat pulling a string of these floating receivers behind it.
- Hydropower (see the French definition )
- This is a form of energy produced by the force of water flowing in a current or in waterfalls.
