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1. (WO2014198607) ANCHOR DEVICE AND DRILLING ASSEMBLY INCORPORATING SUCH ANCHOR MEMBER

Pub. No.:    WO/2014/198607    International Application No.:    PCT/EP2014/061599
Publication Date: Fri Dec 19 00:59:59 CET 2014 International Filing Date: Thu Jun 05 01:59:59 CEST 2014
IPC: E02D 5/80
Applicants: BLADE OFFSHORE SERVICES LIMITED
Inventors: RUFFMAN, William Fleet
SWINGLER, John
Title: ANCHOR DEVICE AND DRILLING ASSEMBLY INCORPORATING SUCH ANCHOR MEMBER
Abstract:
An anchor device (4) adapted to be anchored in an annular cavity (18) is disclosed. The anchor device comprises a body portion (6) and a cutting portion (12) and is adapted to engage a body member (24) to form a drilling assembly (2). The drilling assembly is adapted to cause the cutting portion to form an annular cavity defining a second radially inner surface (20) spaced from a first radially inner surface (30) and a second radially outer surface (22) spaced from a first radially outer surface (8). The drilling assembly defines at least one fluid delivery channel (26) for delivering fluid to a region adjacent the cutting portion to remove drill cuttings from the region via a space (40) between the first radially outer surface and the second radially outer surface. The anchor device is adapted to disengage the body member after formation of the annular cavity.