This course is intended for all engineers engaged in the oil and gas industry, in particular for those engineers involved with gas condensate reservoirs. Course Objectives: The course provides a basic understanding of gas condensate reservoir and fluid properties. EOS models matching PVT. The heavy fraction will be divided into pseudo-components in order to reduce the numerical dispersion. The dry gas injection will yield a modification of the reservoir fluid composition as well as its phase envelope (swelling test). Fundaments in the estimation of original gas in place using volumetric method, correlations and material balance method.