Ölreservoir

Ölreservoir, also known as an oil reservoir, is a naturally occurring underground accumulation of oil. These reservoirs are typically found in porous and permeable rock formations, such as sandstone or limestone, that have trapped the oil over millions of years. The oil originates from the decomposition of organic matter, usually marine organisms, buried deep within the Earth's crust. Over time, heat and pressure transform this organic material into petroleum.

For an oil reservoir to form, several conditions must be met. Source rocks, rich in organic material, must be present. These rocks then undergo maturation, generating hydrocarbons. The hydrocarbons must then migrate from the source rock into a reservoir rock, which has the ability to hold the oil. Finally, a trap structure, such as a fold or fault, must exist to prevent the oil from migrating further and to accumulate it in a concentrated deposit.

The exploration for oil reservoirs involves geological surveys, seismic imaging, and exploratory drilling. Once a reservoir is identified, extraction methods are employed to bring the oil to the surface. These methods can range from simple pumping to more complex techniques like hydraulic fracturing or enhanced oil recovery. The size and economic viability of an oil reservoir depend on factors like the volume of oil present, the ease of extraction, and current market prices.