This textbook discusses theoretical and technological foundations, practical application of equipment and technology for field collection, treatment and processing of gas and gas condensate at gas and gas condensate fields and their features. Also presented are process flow diagrams for gathering, processing and processing of gas and gas condensate at the fields of the Russian Federation, as well as basic equipment. The textbook is intended for bachelors, undergraduates, specialists and graduate students studying in the areas of "Oil and Gas Business" and "Technological Machines and Equipment."