Self-extendable hydraulic wellbore cleaning tool

摘要

The present disclosure provides techniques for a self-extendable hydraulic wellbore cleaning tool. The cleaning tool includes one or more extending nozzles which eject cleaning fluid onto the walls of a wellbore with increased impact momentum due to the shorter range. The extending nozzles can extend from the cleaning tool to a distance away from the cleaning tool, bringing the point of ejection closed to the walls of the wellbore. In certain example embodiments, the cleaning tool also includes one or more flow guides which direct the flow of cleaning fluid ejected from the nozzles. The flow guides cause the cleaning fluid to rotate when ejected from the nozzles, and causes the cleaning fluid to impact the walls of the wellbore at an angle.

主权项

1. A hydraulic well cleaning tool, comprising:
a tool body comprising a wall enclosing an inner chamber of the tool body, the wall comprising an inner surface and an outer surface, the inner surface defining the inner chamber; at least one nozzle coupled to the wall and providing fluid communication between the inner chamber and an outside environment in a direction of flow; and at least one flow guide coupled to the outer surface by hinges, wherein at least a portion of the flow guide external to the tool body traverses the direction of flow and wherein the flow guide is movable between a closed position and an open position.