Patent · US Active

Positioning tool

US9359884B2 · kind B2 · utility

13Cited by

11References

20Claims

0Family size

Assignee

WELLTEC A/S · DK

Inventors

Jørgen Hallundbæk · Roskilde, DK
Mathias Francke · Avenue Madeleine, DK

Key dates

Filing date	Oct 29, 2010
Grant date	Jun 7, 2016
Priority date	—
Expiry date	Sep 30, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG01V11/005
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A positioning tool for determining the position of the tool in a case downhole. The positioning tool utilizes a detecting unit which includes at least a first magnet and a first sensor in a first plane as well as a second sensor also arranged in the first plane. The first and second sensors are configured to detect changes in a magnetic field generated by the first magnet. The first sensor is arranged at a first distance from the first magnet and the second sensor is arranged at a second distance from the first sensor in the first plane.

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