Patent · US Active

Drilling system with adaptive steering pad actuation

US10151146B2 · kind B2 · utility

0Cited by

0References

18Claims

0Family size

Assignee

Baker Hughes, a GE company, LLC · US

Inventors

Joerg Lehr · Sulingen, DE
Arne Deiters · Celle, DE
Sebastian Freier · Hannover, DE
Maximilian Schlegel · Erlangen, DE
Bastian Sauthoff · Burgdorf, DE

Key dates

Filing date	Sep 2, 2014
Grant date	Dec 11, 2018
Priority date	—
Expiry date	Apr 2, 2037

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B7/062
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A bottomhole assembly (BHA) has a first section, a second section, and a drilling motor disposed along the second BHA section. The first BHA section is connected to the second BHA section with a flex sub. A steering assembly positioned along the BHA includes a first steering unit and an axially spaced apart second unit. Each steering unit has at least one pad. During operation, the first steering unit generates a force in a first direction and the second steering unit generates a force in a second direction different from the first direction. The first and the second steering units thereby cooperate to axially misalign the first BHA section and the second BHA section at the flex sub.

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