Patent ID: 8844630
Filing Date: 2014-09-30
Classification: E21B

Abstract:
1. A retrieval tool for forming a threaded connection with a remote tool within a remote location, the retrieval tool comprising: a rotational drive element disposed along a central axis and affixed to a running string to dispose the retrieval tool into the remote location; an attachment sub having a threaded portion for threadedly connecting with a threaded portion of the remote tool, the attachment sub being rotationally driven by the rotational drive element to form the threaded connection; an articulated shaft assembly interconnecting the rotational drive element to the attachment sub to permit the attachment sub to move laterally and angularly with respect to the central axis, the articulated shaft assembly further comprising a first shaft member, a second shaft member disposed in a telescopic configuration with the first shaft member and wherein the first and second shaft members are moveable with respect to each other to extend and retract; and a fluid conduit carried by the retrieval tool to transmit fluid pressure to the remote tool.