Reservoir Management & Improved Recovery

Gas Cap Drive is a primary reservoir drive mechanism in which the natural expansion of a pre-existing gas cap (a zone of free gas overlying…

Gas injection is a secondary and tertiary oil recovery technique used in reservoir management to maintain reservoir pressure, improve oil displacement, and increase the overall…

The Gas-Oil Ratio (GOR) is a fundamental production and reservoir engineering parameter defined as the volume of natural gas produced per unit volume of crude…

Gravity drainage is a reservoir drive mechanism in which the force of gravity causes oil to move downward through the reservoir rock towards production wells.…

A horizontal well is a wellbore drilled vertically to a target depth, then gradually turned to follow a horizontal trajectory within the reservoir rock. The…

Hydraulic fracturing, commonly known as fracking, is a well stimulation technique used to enhance the flow of hydrocarbons from low-permeability reservoir rocks. It is a…

Immiscible Flooding is a secondary or tertiary oil recovery method in which a fluid (typically water or a hydrocarbon gas) is injected into a reservoir…

Improved Oil Recovery (IOR) encompasses a broad set of reservoir management techniques and technologies applied after primary production to increase the amount of oil that…

In-Situ Combustion (ISC), also known as fireflooding, is a thermal enhanced oil recovery (EOR) method that generates heat within the reservoir by igniting a portion…

Infill drilling is a reservoir management technique that involves drilling additional wells (infill wells) between existing producing wells in a developed oil or gas field.…

Irreducible Water Saturation (Swirr) represents the minimum volume fraction of water that remains trapped within a reservoir rock’s pore system and cannot be displaced by…

Material balance is a fundamental principle in petroleum reservoir engineering that applies the law of conservation of mass to a reservoir system. It accounts for…