Natural Gas can be stored underground in 4 types of reservoirs:
1- Depleted Gas
2- Depleted oil
3- Aquifer
4- Salt Cave.
What are the criteria that help decide the suitablity of one reservoir for storing natural gas?
To store gas and/or oil in the reservoir it is very important first to have good cap rock to keep these hydrocarbons un-escaped.
non permeability of the sealed rock is very essential. Reservoir formation density, porosity and temperature are also considered.
And why reservoir temperature is important? Is that for possible retrograde condensation and loss of hydrocarbon in the reservoir?
The age and temperature of sediments that form reservoirs are important. Temperature of the reservoir determines the state of Hydrocarbon within it. Yes, retrograde condensation and loss of Hydrocarbon that you have opined is dependent on temperature.
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