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Amerkhanova S.I.,TatNiPIneff | Yusupov I.G.,TatNiPIneff | Zaripov I.M.,TatNiPIneff | Bachkov A.P.,Tatneff OAO | Govorkov M.B.,TNG Group OOO
Neftyanoe Khozyaistvo - Oil Industry | Year: 2010

It is shown that well logging may not adequately show whether cement is well bonded with the casing and formation. To achieve better accuracy in evaluation of cement bond quality it is recommended to perform cement-bond logging before and after the production string is run into the well and after cementing jobs are accomplished. Some modifications have been proposed for interpretation of gamma-gamma logging data using Scanning GR-Thickness Fault Detector. In particular it Is suggested to introduce anisotropy factor for density measurements of cement sheath around the casing.


Khisamov R.S.,Tatneff OAO | Fajzullin I.N.,Tatneff OAO | Ibatullin R.R.,TatNiPIneff | Podymov E.D.,TatNiPIneff
Neftyanoe Khozyaistvo - Oil Industry | Year: 2010

Historical development, current trends and future outlook for enhanced oil recovery (EOR) methods In Tatneft OAO determined by oil-field development issues Is presented. The company proved to have a wide range of efficient, available and evolving, EOR techniques for various applications. The paper offers a special focus on application of EOR techniques for development of hard-to-recover reserves. A wide application of EOR methods to unconventional oil reserves development requires government motivation by means of lower mineral extraction tax rates. As for the company it should keep updating its EOR techniques.

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