Patent · US Active

Lead the bit rotary steerable tool

US8522897B2 · kind B2 · utility

4Cited by

521References

17Claims

0Family size

Assignee

SCHLUMBERGER TECHNOLOGY CORPORATION · US

Inventors

David R. Hall · Provo, US
Paula Turner · Pleasant Grove, US
David Lundgreen · Spanish Fork, US
Scott Richard Woolston · Spanish Fork, US

Key dates

Filing date	Sep 11, 2009
Grant date	Sep 3, 2013
Priority date	—
Expiry date	Sep 28, 2030

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B7/068
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A drilling assembly comprises a drill bit that includes a bit body intermediate a working face and a shank. An indenting member adapted to guide the drill bit protrudes from the working face. A flexible portion is disposed above the bit body.

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