Patent · US Active

Drilling shaft deflection device

US10041303B2 · kind B2 · utility

1Cited by

75References

21Claims

0Family size

Assignee

Halliburton Energy Services, Inc. · US

Inventors

Daniel Winslow · Spring, US
Gopal M. Bhosle · Wetaskiwin, CA

Key dates

Filing date	Feb 14, 2014
Grant date	Aug 7, 2018
Priority date	—
Expiry date	Jul 8, 2034

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B47/024
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

Drilling shaft deflection device (750) for establishing a deflection angle and azimuthal toolface direction of a drill bit (22) in a rotary steerable subterranean drill (20). The drilling shaft deflection device (750) includes a drilling shaft (24) rotatably supported in a housing (46) and a drilling shaft deflection assembly (92) contained within the housing (46) that transitions the drilling shaft (24) between deflected and undeflected configurations. The deflection device (750) further contains a pair of drive motors (760a, 760b) anchored to the housing (46) and respectively interconnected to eccentric ring actuators (156, 158) for deflecting and rotating the shaft (24).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.