possibility of using gas injection method for increasing pressure in well a: the case of oil fields in southern iran

The hydrocarbon reservoir is a porous and permeable structure in the basement that houses a natural accumulation of hydrocarbons in liquid or gaseous form and is separated from the surrounding area by impermeable rocks. in a more concrete description, hydrocarbon reservoirs can be likened to an airfilled kite, in which the shell plays the role of the same impermeable rock, and as soon as this balanced medium is pierced, reservoir fluids, as air exits the kite rapidly by forces. the wells are driven. of course, the strength of this natural drift decreases simultaneously with the production of the reservoir; iranian reservoirs are, for example, said to have an average annual 10-8% natural drop in reservoir pressure and drop in production flow from the well - drop in production flow from the well with direct reservoir pressure drop. the correct division of a reservoir requires knowledge of the thermodynamic behavior of the phases in the reservoir, i.e. liquid, gas, solid, as well as knowledge of the forces affecting the production mechanism.