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Modeling Halite Precipitation around CO2 Injection Wells in Depleted Gas Reservoirs
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 67th EAGE Conference & Exhibition, Jun 2005, cp-1-00040
Abstract
A020 Modeling halite precipitation around CO2 injection wells in depleted gas reservoirs Abstract 1 Precipitation of solid NaCl (halite) is known to occur both at producing wells during exploitation of gas reservoirs and at gas injection wells in aquifer storage fields where high salinity brines are present. Water vaporization into the gas phase is the recognized mechanism responsible for salt concentration in the residual brine which can be followed by solid salt precipitation with rapid loss of formation permeability. Halite precipitation has also been anticipated by numerical modeling of CO2 injection in saline aquifers for greenhouse gas sequestration in geological