Definition - What does Saturation mean?
Saturation is the state that occurs when a dissolved material cannot be dissolved or absorbed anymore. Saturation can be relative to water or oil and gas which accumulates in the pores of the rocks or reservoir deep below the surface of earth. It is expressed in terms of percentage of volume of water and oil or gas accumulated in the pores of a rock. An example of a saturated compound is a hydrocarbon that does not have triple or double bonds.
Petropedia explains Saturation
Saturation can be either hydrocarbon or water saturation. Hydrocarbon saturation is defined as the ratio of hydrocarbons (crude oil, natural gas or condensates) accumulated to the pore volume. Similarly, the water saturation is defined as the ratio of water accumulation to the pore volume of the rock or reservoir bed.
Saturation can be expressed as volume per volume units. Moreover, it can be described as the formation of hydrocarbons & water in an undisturbed zone and the ability of a solid to hold a great amount of water & hydrocarbons under specific conditions. This undisturbed zone is called as zone of saturation.
The zone of saturation is the ground immediately below the water table. The pores and fractures in soil and rocks are saturated with water.