Santa Fe International Corporation

Stena Offshore Limited

J. Ray Mcdermott, S.a.

Sante Fe International Corporation

Carlos E Recalde

A vertical reel pipelaying vessel having a vertical pipe storage reel rotatably positioned aft of midship and a vertical aligner wheel positioned forward of the reel. A guide means includes supports for the aligner wheel on the vessel to permit rotational movement about the axle of the aligner wheel. A moon pool is positioned forward of the reel. A direction means is provided for pivoting the aligner wheel over the moon pool to allow pipe takeoff forward of the axis of the aligner wheel and into the moon pool. The aligner wheel is provided with strain gauges along the axle to measure directly the tension of the pipeline being unspooled and passing into the water through the moon pool. A pipe straightener to apply independent transverse forces to the pipe remote from the aligner includes an endless track with rollers and sprockets in order to apply a first force at the pipeline and aligner wheel contact and a second force to the pipeline after the pipe takeoff from the aligner to bend the deformed pipeline to become straight. A transverse shifting assembly shifts the vertical aligner wheel, the supporting structure for the aligner wheel as well as the direction means for pivoting the aligner wheel. The transverse shifting assembly operates athwartship. A pipeline A&R clamp with engagement latch, shells and slips is provided to hold the pipeline after it leaves the aligner wheel and before it enters the water.

Vertical reel pipe laying vessel

Pipelay method and devices

Pipelay stinger

Pipelaying vessel

A pipelaying system adapted for deployment on a vessel for use in a body of water and having at least one reel for storage and layout of a rigid walled pipeline and including a pipe take-off drum for mounting on the vessel for rotation about a horizontal drum axis, and a drive unit operably connected to the reel and adapted to permit control of the rate of movement of the pipeline, and methods of spooling on and spooling off.

Pipeline laying system and vessel and method of spooling lines onto the

A method of spooling a plurality of operational lines onto a vessel having a plurality of reels for storage of the operational lines, one of which lines is a rigid walled pipeline, the vessel having a level wind apparatus, a pipeline support drum, and a motor unit for each of the storage reels.

Method of converting a pipeline laying vessel from a pivotal ramp type

A pipelaying system adapted for deployment on a vessel for use in a body of water and having at least one reel for storage and layout of a rigid walled pipeline and including pipe take-off drum for mounting on the vessel for rotation about a horizontal drum axis, a pipe take-off structure pivotally mounted on the axis of rotation of the drum, and a drive unit operably connected to the reel and adapted to permit control of the rate of layout of the pipeline, with the vessel convertible between a pivotal ramp type and an arcuate type.

Pipeline laying system and vessel with pipeline straightening and

A pipelaying system is adapted for deployment on a vessel for use in a body of water. The system has at least one reel for storage and layout of a rigid walled pipeline, a pipeline support comprising a pipe takeoff drum for mounting on the vessel for rotation about a horizontal drum axis, a pipe takeoff structure pivotally mounted on the axis of rotation of the drum, and a drive unit operably connected to the reel. Such an arrangement is adapted to permit control of the rate of layout of the pipeline.

Pipeline laying system and vessel

A reel pipelaying vessel having multiple reels for laying operational lines in a wide range of water depths. An operational lines laying device is mounted on the vessel in order to provide supporting means for the simultaneous layout of a plurality of operational lines at a common velocity and in a predetermined relationship to one another. Motive means are interconnected to the multiple reels in order to control the rate of layout. Separate or combined straightening and tensioning devices can be employed for handling the rigid walled pipeline contained within the operational lines. The straightening and tensioning devices can be mounted for pivotal movement with respect to the vessel deck or can be operated in fixed planes with respect to the deck. Six or more operational lines can be simultaneously laid out with the vessel described.

Multi-reel operational lines laying vessel

A pipeline vessel for laying out and coating a pipeline from a storage reel onto the bottom of a body of water. The vessel equipment provides for both straightening and tensioning of the pipeline as well as coating with a wide range of concrete and/or polymer coats. Both extrusion type thermoplastic coatings and reacted in situ thermoset resins are employed. The process of laying a relatively inflexible pipeline from such a reel pipelaying vessel and coating the pipe as it is laid out is also provided.

Growing community of inventors

Irvine, CA, United States of America

Carlos E Recalde