Calsep is a company specializing in reservoir fluid modeling, offering software and services designed to help the oil and gas industry with phase behavior simulation. Their flagship software, PVTsim Nova, assists clients in modeling and predicting the behavior of reservoir fluids under various conditions, which is crucial for efficient hydrocarbon production and management. Through advanced simulation capabilities, PVTsim Nova enables users to conduct comprehensive fluid analyses and optimize production strategies. Calsep is known for its expertise in the field and commitment to providing robust and reliable solutions for the energy sector.