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2 302 512

(13)

(51)

IPC

E21B33/12(2006-01-01)

(21) (22)

Application

2005107095/03, 2005-03-11

(24)

Start date

2005-03-11

(22)

Actual filing date

2005-03-11

(45)

Published

2007-07-10

(72)

Inventor

Patel Dinesh R.Khilsman J. Dzhil IiiOmer EhrveIron StefanGamb'E FilippUajtkhed Dzhonattan K.K.Sheffild Rehndol'F Dzh.Vetzel Rodni Dzh.Uitsitt Dzhon R.Makdugall Tomas D.Vajdija Nitin J.Khendrikson Dzhejms D.Ehdvards Dzhon Eh.Ross Donal'D V.Bkhavsar Rashmi B.

(73)

Holder

Shljumberger Kholdingz Limited

SEALING SYSTEM AND SEALING METHOD TO BE USED IN WELL BORE (VARIANTS) Russian patent published in 2007 - IPC E21B33/12

Abstract RU 2302512 C2

FIELD: mining, particularly sealing or packing boreholes or wells, namely packers.

SUBSTANCE: sealing system of packer type is used in well bore to provide sealing with respect to outer surface of casing pipe or uncased well. Sealing system includes swelling material to be expanded from normal state to swelled state as swelling material is brought into contact with initiating flowable medium to create seal.

EFFECT: possibility to seal wells with uneven cross-section and simplified well isolation works.

44 cl, 23 dwg

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RU 2 302 512 C2

Authors

Patel Dinesh R.

Khilsman J. Dzhil Iii

Omer Ehrve

Iron Stefan

Gamb'E Filipp

Uajtkhed Dzhonattan K.K.

Sheffild Rehndol'F Dzh.

Vetzel Rodni Dzh.

Uitsitt Dzhon R.

Makdugall Tomas D.

Vajdija Nitin J.

Khendrikson Dzhejms D.

Ehdvards Dzhon Eh.

Ross Donal'D V.

Bkhavsar Rashmi B.

Dates

2007-07-10—Published

2005-03-11—Filed