Patent · US Active

Method and application for directional drilling with an asymmetric deflecting bend

US10053914B2 · kind B2 · utility

2Cited by

5References

15Claims

0Family size

Assignee

Baker Hughes, a GE company, LLC · US

Inventors

Joerg Lehr · Sulingen, DE
Bastian Sauthoff · Burgdorf, DE
Arne Deiters · Celle, DE

Key dates

Filing date	Jan 22, 2016
Grant date	Aug 21, 2018
Priority date	—
Expiry date	Sep 29, 2036

Classification

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

Abstract

A method and related apparatus for forming a wellbore in a subterranean formation includes forming a drill string that has a drill bit at a distal end, a drilling motor configured to rotate the drill bit with a drive shaft; a joint coupled to the drive shaft; and an actuator assembly displacing the drive shaft between a first and a second deflection angle, the drive shaft being movable at each of the deflection angles until a predetermined weight is applied to the bit. The method also includes conveying the drill bit through the wellbore and fixing the drive shaft in at least one of the first and the second deflection angles by applying a predetermined weight on the bit.

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