Schlumberger Technology Corporation

Terry L McCafferty

Joseph K Flowers

Rod W Shampine

Matthew E Wilson

Larry Dale Welch

Yarom Polsky

L Michael McKee

Bartley Patton

Robin Mallalieu

Shampine Rod

Nikki Hobbs

A modular work system permits Rig Up time to be substantially reduced by reducing the number of crane lifts required to offload equipment for a transport boat or vehicle. This is achieved by developing transport skids capable of holding multiple system components. The number of equipment components that must be mechanically coupled on location is reduced by pre-assembling the components and maintaining the assembly in operating condition during storage and transport. Skid design concepts are employed, wherein a skid system carries various pre-assembled components for transport, storage and operation. Specifically, a skid sub-system includes various related components. The components are either pre-assembled or are designed to complete a sub-assembly through final assembly on the rig. The skid is moved into place using the crane, and the assembly is completed. Additional sub-systems are mounted on additional skids which are designed to be mated with the other related skids and sub-assemblies. Each skid sub-system fits in an envelope meeting transportation regulations for vehicle width and height. The system is particularly suitable for jacking frame operations.

Jacking frame for coiled tubing operations

A system for reducing the effects of heave movements of a wellhead in an offshore drilling device is provided that includes a frame; a coiled tubing stack supported by the frame; and a heave compensation system for controlling an amount of load transferred from the coiled tubing stack to the wellhead to reduce relative movements between the coiled tubing stack and the wellhead.

Multi-purpose coiled tubing handling system

Modular coiled tubing system for drilling and production platforms

Trailer mounted coiled tubing rig

A trailer (,) has a dropped center section (,) defining a well (,) for a coiled tubing reel (,). A mast (,) has a pair of posts (,) on which a carriage (,) is mounted for movement along posts (,). An injector head (,) is supported on carriage (,) for pivotal movement in a vertical plane relative to mast (,) and for horizontal movement along a tubular support member (,) of carriage (,) relative to mast (,). Mast (,) is pivotally mounted on the rear end of trailer (,) for movement away from trailer (,) for positioning over a wellhead. In a stored position, mast posts (,) fit alongside the ends of reel (,) so that to the total height of the stored coiled tubing rig is no more than 13&frac12; feet for over the road travel.

A levelwind system for a coiled tubing reel (,) including an arcuate guide arm (,) extending over the upper surface of the reel (,). A universal joint (,) mounts the lower end of the arm (,) for pivotal movement both vertically and horizontally. A guide member (,) is supported on the free end of the guide arm (,) for guiding the coiled tubing T on and off reel (,). A lift cylinder (,) is effective to raise and lower guide arm (,). A balancing cylinder (,) is effective for moving guide arm ME (,) laterally. A hydraulic fluid circuit responsive to a position sensor (,) and a microprocessor (,) as shown in FIG.,is effective for controlling the movement of the coiled tubing guide arm (,).

Levelwind system for coiled tubing reel

Roadway trailer for coiled tubing reel

Trailer for a coiled tubing reel

Growing community of inventors

Sugar Land, TX, United States of America

Terry L McCafferty