Patent · US Active

Apparatus for use in a tractor in a wellbore and methods

US11441370B2 · kind B2 · utility

1Cited by

1References

29Claims

0Family size

Assignee

Qinterra Technologies AS · NO

Inventor

Gerald McInally · Bryne, NO

Key dates

Filing date	Mar 31, 2016
Grant date	Sep 13, 2022
Priority date	—
Expiry date	Nov 12, 2036

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B23/001
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

This invention relates to a tractor for use in a wellbore, an apparatus for use in the tractor and related methods. In one embodiment the apparatus has a body, a drive wheel and a movable arm for supporting drive wheel. The arm may be rotatably movable using an actuator such that the drive wheel can be extracted from the body and brought into engagement with a wall of the wellbore, and may be arranged to be offset from a central region of the apparatus for providing accommodation space for the actuator in the body.

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