OIL STATES MCS LIMITED

Abrasive Cutting

 

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Abrasive Cutting System

Abrasive Jet

Above an abrasive water jet cutting through 1.5 inches (38mm) of steel plate.

The Abrasive Subsea Cutting system uses a high pressure jet of water/grit slurry to cut through steel up to 6” thickness. Its principle use here is in the severance of piles and structural tubular for the abandonment of offshore structures. Tubular piles of any diameter can be accommodated and it is usual to make the cut below the mudline so that there is no likelihood of pile stickup after abandonment.
Internal Cutting Manipulator (ICM) The Internal Cutting Manipulator shown left is inserted into the pile and lowered to the correct position. The arms, shown extended, are then activated to centralise and hold the tool in position. The abrasive slurry and hydraulic power for rotating the nozzle is fed to the tool via an umbilical from the surface. Time for a pile cut depends on the diameter and thickness but as an example a 54” dia X 2.5” w.t. is cut in 90mins. The tool also houses a monitoring system to provide cut verification.

Click on any image for a full size picture.

Combined Abrasive Mier Unit and Grit Hopper

Right is an external manipulator for cutting through tubulars from the outside. Cutting is also performed on flat surfaces using tracking either fixed by divers or by ROV.

 E.C.M. Split Clamp Closed Position.jpg (85888 bytes)

Left is a mixer and hopper for supplying the slurry to the manipulator. The mixer is located at the surface with the pump and supplies slurry at pressures up to 1000 bar and grit volumes of up to 3000 lbs per hour.

 

Abrasive Cutting Additional Information

To view a list of  Water Jet Cutting operations  click on the appropriate link below:

                   North Sea                 South East Asia

View the Abrasive Water Jet Cutting Brochure here.

If you would like to view a Powerpoint presentation of the abrasive cutting system please request the presentation using the form on the Contact Us page.
Recent Abrasive Cutting Operations
For more information about some of our more high profile abrasive cutting operations please follow the links below.

Froy platform Removal
For Further Information
For further details, a consultation or quotation please go to the Contact Us page where you can E-mail OSMCS Ltd using the online form. If you prefer to speak to an engineer in person our telephone number is also available on the contact  page.
 
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