The automatic diagnostic system of gas well flooding

There is a problem of diagnosis of the gas-well flooding in the article. Flooding weakens development of gas fields. Thus, creating real-time system of diagnosis of gas field is actual and has an important scientific and practical meaning. The known diagnosis methods are very labor consuming, expensive and do not guarantee real-time diagnosis. The offered system of automatic diagnosis of flooding include mathematical treatment with special algorithms using every day results of wellhead temperature and pressure measuring. A mean square deviation is calculated for a central system unit and compared with a typical value measured under normal operating conditions. These operations are made with a period defined at telemetry system's setup. As a result, the system fixes availability or unavailability of flooding according to special criteria and forms a signal. This system was probed on some wells of Urengoy gas-field; and its effectiveness was proved.