Analysis and optimization of waterflooding performance in carbonate reservoirs of the Republic of Tatarstan

Authors: V.V. Akhmetgareev (TatNIPIneft, RF, Bugulma), A.I. Bakirov (Kazan Branch of All-Russian Research Geological Oil Institute, RF, Kazan)

Key words: waterflooding, oil recovery factor, well spacing density, multilateral horizontal well, horizontal well.

Dependencies of oil recovery factor on well spacing density have been obtained for the Bashkirian, Tournaisian and Vereiskian reservoirs of the Republic of Tatarstan. The paper considers various options for vertical, horizontal and multilateral well placement in a dual-permeability reservoir and the method of Tournaisian reservoir development in the Bavlinskoye field using multilateral horizontal well.

Key words: waterflooding, oil recovery factor, well spacing density, multilateral horizontal well, horizontal well.

Dependencies of oil recovery factor on well spacing density have been obtained for the Bashkirian, Tournaisian and Vereiskian reservoirs of the Republic of Tatarstan. The paper considers various options for vertical, horizontal and multilateral well placement in a dual-permeability reservoir and the method of Tournaisian reservoir development in the Bavlinskoye field using multilateral horizontal well.