Patent · US Active

Drill bit with a force application using a motor and screw mechanism for controlling extension of a pad in the drill bit

US9181756B2 · kind B2 · utility

15Cited by

21References

16Claims

0Family size

Assignee

Baker Hughes Holdings LLC · US

Inventors

Thorsten Schwefe · Virginia Water, GB
Dan Raz · Tirat Karmel, IL
Gregory Rinberg · Haifa, IL

Key dates

Filing date	Jul 30, 2012
Grant date	Nov 10, 2015
Priority date	—
Expiry date	Sep 19, 2033

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B10/62
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A drill bit and method of drilling a wellbore. The drill bit includes a pad configured to extend and retract from a surface of the drill bit, and a force application device configured to extend and retract the pad. The force application device includes a screw driven by an electric motor that linearly moves a drive unit to extend and retract the pad from the drill bit surface. The drill bit may be conveyed by a drill string and the pad may be extended from the drill bit face to drill the wellbore.

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