Features of producing from volatile oil accumulations with high GOR in Middle Devonian section of Pervomaiskaya group
Authors: V.V. Vasilyev, А.P. Коvalenko, D.P. Patrakov (TNNC LLC), Е.V. Pitsyura (Оrenburgneft OJSC)
It is shown that Devonian targets of Pervomaiskaya group of fields have a number of distinctive features, such as high GOR, low oil viscosity which predetermines their development strategy. It is marked that to achieve high oil recovery in the given conditions it becomes critically important to timely establish the formation pressure maintenance system. Reasons of low effectiveness of the injection in the fields under consideration are examined. Solutions for enhancing injection efficiency and reducing possible losses of mobile oil reserves are proposed.
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