A PIPELINE TOOL

摘要

A self propelled autonomous pipeline tool (100) for use in straight pipe comprising a first part and a second part, a hydraulic system (A, B) comprising at least one hydraulic piston (140, 150, 160) and means for operating the piston, and a control unit. The hydraulic system is operable to returnably separate the first and second part of the device from each other. The hydraulic system further comprises a plurality of pipeline engaging means (142) positioned along an exterior surface of the device which are operable by the hydraulic system to be engagable with the interior surface of the pipeline. The control unit is in communication with the hydraulic system to control the movement of the pipeline engaging means and the first and second parts such that the pipeline tool is moveable within a straight pipeline. The pipeline tool further comprises a communications module which enables the pipeline tool to utilize ELF communications.