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1. GB2502771 - Functionally graded swellable packers

Office
Royaume-Uni
Numéro de la demande 201208141
Date de la demande 16.11.2010
Numéro de publication 2502771
Date de publication 20.06.2012
Type de publication A8
CIB
E21B 33/12
ECONSTRUCTIONS FIXES
21FORAGE DU SOL OU DE LA ROCHE; EXPLOITATION MINIÈRE
BFORAGE DU SOL OU DE LA ROCHE; EXTRACTION DU PÉTROLE, DU GAZ, DE L'EAU OU DE MATÉRIAUX SOLUBLES OU FUSIBLES OU D'UNE SUSPENSION DE MATIÈRES MINÉRALES À PARTIR DE PUITS
33Etanchement ou bouchage des trous de forage ou des puits
10dans le trou de forage
12Packers; Bouchons
CPC
C08J 3/245
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
3Processes of treating or compounding macromolecular substances
24Crosslinking, e.g. vulcanising, of macromolecules
245Differential crosslinking of one polymer with one crosslinking type, e.g. surface crosslinking
E21B 33/1208
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
33Sealing or packing boreholes or wells
10in the borehole
12Packers; Plugs
1208characterised by the construction of the sealing or packing means
Déposants SCHLUMBERGER HOLDINGS
Inventeurs VAIDYA NITIN Y
BARMATOV EVGENY
Données relatives à la priorité 2010056797 16.11.2010 US
12622558 20.11.2009 US
Titre
(EN) Functionally graded swellable packers
Abrégé
(EN)
A swellable packer including a tubular member and a swellable element. The tubular member is disposable on a mandrel configured to be deployed into a wellbore. The swellable element is disposed around the tubular member, and has segments of different cross link densities, with the segments configured to provide a varying cross link density in the swelleable element along a thickness of the swellable element, an azimuth of the swellable element, or both.

Également publié en tant que
NO20120598