Method and Device for Treatment of a Pipestring Section that is Positioned in a Set-Back
AssigneeNational Oilwell Varco Norway AS
InventorRoar Berge
Life of this patent
Estimating the term…
Abstract
A method for treating pipe string sections being in a set-back and being arranged in a vertical position comprises arranging a remote-controllable manipulator at least at one of the threaded portions of the pipe string sections. In addition, the method comprises providing the remote-controllable manipulator with a tool. The tool is arranged to at least clean or lubricate said threaded portion. Further, the method comprises moving the tool to a threaded portion which is to be treated and at least clean or lubricate the threaded portion.
Claims14
A method for the treating a plurality of pipe string sections arranged in a vertical orientation in a set-back, the method comprising:
- arranging a remote-controllable manipulator over the pipe string sections;
- providing the remote-controllable manipulator with a tool configured to clean or lubricate said threaded portion;
- moving the tool to a threaded portion of one of the pipe string sections to be cleaned or lubricated;
- remotely controlling the tool to position, the tool at the threaded portion, wherein the current position of the tool is shown on a display screen.
A set-back for pipe string sections, comprising:
- a plurality of pipe string sections oriented in vertical positions, wherein at least one of the pipe string section has an accessible threaded portion
- a tool configured to clean or lubricate the threaded portion;
- wherein the tool is connected to a remote-controllable manipulator configured to position the tool at the threaded portion while the pipe string section is in the set-back;
- wherein the manipulator is coupled to a derrick.
A manipulator for moving a tool for cleaning or lubricating one or more threaded portions of a plurality of pipe string sections in a set-back, the manipulator comprising:
- a swivel guide coupled to a derrick;
- a first arm and a second arm pivotally coupled to the first arm;
- and
- an elevation guide coupled to the second arm and configured to vertically move the tool;
- a camera coupled to the elevation guide and configured to monitor the position of the tool relative to the threaded portions.
Dependencies are inferred from the claim text.