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RU

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2 190 086

(13)

C1

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IPC

(21) (22)

Application

2001109365/03, 2001-04-06

(24)

Start date

2001-04-06

(22)

Actual filing date

2001-04-06

(45)

Published

2002-09-27

(72)

Inventor

Urazakov K.R.Valeev M.D.Giljazov R.M.Ramazanov G.S.Alushkina S.M.

(73)

Holder

Dochernee Obshchestvo S Ogranichennoj Otvetstvennost'Ju Nauchno-Issledovatel'Skij Institut Nefti" Otkrytogo Aktsionernogo Obshchestva Neftjanaja Kompanija

METHOD OF RUNNING DROWNED OIL WELLS Russian patent published in 2002 - IPC

Abstract RU 2190086 C1

FIELD: oil and gas production, extraction of oil from drowned wells. SUBSTANCE: method includes preliminary determination of level of fluid in well, drilling of side well bore from main bore and installation of downhole pumping equipment on bottom with subsequent extraction of oil. Temporary cement bridge is positioned according to invention in main bore beneath point of side-tracking. Side bore is drilled beneath dynamic level of fluid in well. On completion of it cement bridge is destroyed and drowned bottom hole of main bore of well is cemented at level of productive pool with placement of downhole pumping equipment on it. EFFECT: raised oil withdrawal from side bore of drowned well. 2 dwg

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RU 2 190 086 C1

Authors

Urazakov K.R.

Valeev M.D.

Giljazov R.M.

Ramazanov G.S.

Alushkina S.M.

Dates

2002-09-27—Published

2001-04-06—Filed

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