Title:
ECCENTRIC SLEEVE FOR DIRECTIONAL DRILLING SYSTEMS
Document Type and Number:
WIPO Patent Application WO/2013/066695
Kind Code:
A3
Abstract:
A drill bit includes a bit body configured to rotate about a bit rotational axis and a sleeve coupled to the bit body. The sleeve is coupled to the bit body on an uphole portion of the bit body. The sleeve has a smaller diameter than the bit body and is aligned at the edge of the circumference of the bit body.
Inventors:
CHEN SHILIN (US)
Application Number:
PCT/US2012/061774
Publication Date:
January 23, 2014
Filing Date:
October 25, 2012
Export Citation:
Assignee:
HALLIBURTON ENERGY SERV INC (US)
International Classes:
E21B7/06
Foreign References:
| US1805806A | 1931-05-19 | |||
| US4319649A | 1982-03-16 | |||
| US4739843A | 1988-04-26 | |||
| US20020185315A1 | 2002-12-12 |
Attorney, Agent or Firm:
HEYMAN, Paula D. (Foreign Patent Department98 San Jacinto Blvd.,Suite 150, Austin Texas, US)
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