Patent · US Expired

Steering device for steerable drilling tool

US5934383A · kind A · utility

17Cited by

29References

35Claims

0Family size

Assignee

Baker Hughes Holdings LLC · US

Inventors

Rainer Jurgens · Celle, DE
Volker Krueger · Celle, DE
Hans Jurgen Faber · Neustadt, DE
Thomas Kruspe · Braunschweig, DE

Key dates

Filing date	Jun 6, 1997
Grant date	Aug 10, 1999
Priority date	—
Expiry date	Jun 6, 2017

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B7/067
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

The invention is a control device or directional drilling tool. The control device has an electromotor drive in the orienting device. The measuring and control device is situated between the orienting device and the drill string. Cable lead-throughs through the orienting device are eliminated. The electromotor drive of the orienting device can be actuated independently of drilling operations, making it possible to perform a rapid and precise performance of an orientation process while continuing drilling operations, reducing deviations from the planned drilling program.

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