Title:
DOWNHOLE ASSEMBLY AND CUTTER ASSEMBLY
Document Type and Number:
WIPO Patent Application WO/2007/093771
Kind Code:
A8
Abstract:
This invention relates to a downhole assembly (10) and to a cutter assembly, and in particular to a downhole assembly including an apparatus for breaking up large-scale material which is present behind a drill bit (12), and to a cutter assembly for use in such a downhole assembly. The downhole assembly is suitably for use in a drillstring, the downhole assembly comprising a drill bit, a sensitive component (20), and at least one rotatable set of cutter blades (24) located between the drill bit and the sensitive component.
Inventors:
STROUD DARYL RICHARD HENRY (GB)
SEDGEMAN ROBERT DONALD JOHN (GB)
WALKER COLIN (FR)
SEDGEMAN ROBERT DONALD JOHN (GB)
WALKER COLIN (FR)
Application Number:
PCT/GB2007/000477
Publication Date:
November 18, 2010
Filing Date:
February 13, 2007
Export Citation:
Assignee:
SMART STABILIZER SYSTEMS LTD (GB)
STROUD DARYL RICHARD HENRY (GB)
SEDGEMAN ROBERT DONALD JOHN (GB)
WALKER COLIN (FR)
STROUD DARYL RICHARD HENRY (GB)
SEDGEMAN ROBERT DONALD JOHN (GB)
WALKER COLIN (FR)
International Classes:
E21B17/10; E21B10/26; E21B37/02
Attorney, Agent or Firm:
GEE, Steven, William (1 South Lynn GardensLondon Road, Shipston on Stour CV36 4ER, GB)
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