FEEDING DEVICE FOR A DOWNHOLE TOOL AND METHOD FOR AXIAL FEEDING OF A DOWNHOLE TOOL

摘要

A feeding device (3) for a rotatable downhole tool (5) is described the feeding device (3) being provided with several feeding wheels (32) lying in a plane which is slanted relative to a plane which is perpendicular to the centre axis of the downhole tool (5). A method of feeding a downhole tool (5) axially by the use of the feeding device when working a portion of a surrounding pipe body (12) is described as well.