BENADIS MOHAMMEDHAMAIDA KHEIRA2026-10-012026-10-012026https://dspace.univ-temouchent.edu.dz/handle/123456789/7706This thesis deals with the characterization of natural gas, LPG, and condensate in the Ain Tsila gas field (CPF). The main issue is the degradation of the condensate color, which leads to off-specification products. The study aims to monitor the treatment efficiency as well as the physicochemical characteristics of natural gas, LPG, and condensate. Chromatographic and physicochemical analyses were carried out to check the compliance of the products with transportation and marketing standards. The physicochemical analyses performed at the CPF laboratory gave satisfactory results for all the tests, except for those related to the condensate color, whose deviation was identified and analyzed, allowing the recommendation of preventive and corrective actions.frThesis