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2 199 649

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Application

2000103145/03, 2000-02-08

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Start date

2000-02-08

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Actual filing date

2000-02-08

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Published

2003-02-27

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Inventor

Budnikov V.F.Geras'Kin V.G.Nizhegorodov A.A.Strel'Tsov V.M.Chernenko A.M.Zlokazov A.V.Mordovin V.A.Kolesnikov A.A.Shamanov S.A.

(73)

Holder

Obshchestvo S Ogranichennoj Otvetstvennost'Ju

PROCESS OF CASING STRING CEMENTING Russian patent published in 2003 - IPC

Abstract RU 2199649 C2

FIELD: well drilling. SUBSTANCE: minimal value of volumetric discharge of pumped cement slurry is calculated by analytical expression. Intensity of crossflow is also computed by analytical expression. Volumetric discharge of cement slurry pumped into casing string is chosen to be above value of intensity of crossflow. Cement slurry is pumped into casing string. Separation cementer is removed. Cement slurry is forced into well clearance. EFFECT: increased cementing quality and prevention of down-hole failures. 3 dwg

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RU 2 199 649 C2

Authors

Budnikov V.F.

Geras'Kin V.G.

Nizhegorodov A.A.

Strel'Tsov V.M.

Chernenko A.M.

Zlokazov A.V.

Mordovin V.A.

Kolesnikov A.A.

Shamanov S.A.

Dates

2003-02-27—Published

2000-02-08—Filed

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