An experimental study of waterflooding and depressurisation relevant to gas condensate reservoirs

Development options for gas condensate reservoirs are to depressurise the reservoir, maintain the pressure by water injection or to maintain the pressure by gas injection. The depressurisation option may itself allow water to flood the reservoir from any attached aquifer. Thus, evaluation of the options depends critically on the interaction between the condensate and water. This paper describes a series of low pressure core flooding experiments carried out to investigate these interactions.