Application of compound muds at Tatatrstan Republic oil fields

Authors: N.G.Bilyalov, L.S.Sidorov (Closed Joint Stock Association “Horizont-Service”), A.N.Shakirov (Closed Joint Stock Association “Tatnefteotdacha”), V.A.Fedorov (Limited Ability Company “Aznakayevburneftegas-Tatneft”)

Reviewed are advantages of application of compound mud. Presented are drilling results of four wells at Elginskoye field with application of proposed compound mud. Stated is an efficiency of its’ application in the wells at Tatatarstan fields.