Efficiency of forming of water-isolating screens in the net pay while completion

Authors: D.A. Berdnikov, I.V. L’vova (TatNIPIneft, RF, Bugulma), R.R. Khuzin (Carbon-Oil OOO, RF, Almetyevsk), N.I. Rylov, L.M. Mironova (Nauka OOO, RF, Bugulma)

Key words: well completion, water-isolating screen, special cement blend, water contributing interval, water breakthrough,

A conceptually new completion method to prevent water cut of the wellstream resulting from bottom water breakthrough to the annulus is considered. The technology is realized at the stage of completion; it involves selective forming of a protective screen in the water contributing interval. The paper presents results of the analysis of the completion technology, as well as conclusions and practical recommendations.


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