Grouping of Gas Lift Wells Based on their Interaction

Abstract

Abstract The operation of wells by the gas lift method is in the conditions of a contradiction between the volumes of injected compressed gas and the production of wells. As already mentioned, the existing method of individual selection of gas-lift wells operating modes based on the lowest specific gas flow rate has a number of disadvantages; the designated optimal mode is optimal only for a short period of time, since the existing hydrodynamic connections along the reservoir and the interconnections along external feed lines lead to a redistribution of fluid flows inside the reservoir and gas flows in the feed lines. The instability of the optimal mode is also caused by the presence of all kinds of random interference, for example, equipment failures, especially in Western Siberia. In addition to the above, since the existing system for automating the operating modes of gas-lift wells is based on individual studies, due to the lack of proper metering installations that provide the necessary accuracy of measurements, the operation of wells included in a common pipeline and the operation of the "main ~ well-regulator" system (A.V.Mamedov, B.A.Osmanov, M.S.Askerov, 2004, A.Kh.Mirzadzhanzade, I.M.Ametov, 1983). There is a need to find ways to bring gas-lift wells to optimal operating conditions, which is especially important in conditions of a shortage of compressed working agent volumes, when the available gas resources do not ensure the operation of wells with maximum fluid extraction (Bakhtizin R.N., Khasanov M.M., Efendieva N.N., 1993). The solution to this problem is possible by dividing the entire fund of gas-lift wells into separate groups, taking into account their interaction and the characteristic features of the main technological parameters of individual wells, followed by assigning an operating mode for groups of wells as a whole.