Selected Projects

            

Nexen Petroleum
Buffalo Field Abandonment Strategy 

In 2002, ICON was engaged by Nexen to assist in developing an abandonment strategy for the field.

The field consisted of a 380 tonne Wellhead Platform (WHP) linked to a 70,000 DWT FPSO anchored approximately 2km away in 300m water depth. The field was characterised by the fact that the WHP was on the steep edge of a shallow bank. The platform and FPSO were linked via a 10” Production Line, 4” Gas lift line and an umbilical.

  

            

Laminaria Corallina Project
Heave Compensation System
Woodside Offshore Petroleum 1998

ICON Engineering was commissioned by Woodside to supply an In Line String Motion Compensator to support a load of 227 tonnes (500,000 lbs) for the installation of the Laminaria and Corallina subsea well completions. The work
scope included design, procurement, manufacture, testing and installation.

Incredibly the entire system was despatched 5 ½ weeks from the initial enquiry.

  

            

Esso Australia Ltd
Blackback Phase 1 Development Project Placement of Subsea Flowline Jumpers, Bass Strait Australia

ICON Engineering was awarded the contract to place the flowline jumpers on the seabed in designated locations such that they could be tied in later by ROV.

The project was unique in that the flowline placement was undertaken from a semisub drilling rig. Traditionally, this work has been carried out from a DP Diving Support Vessel. The method was cost effective since the rig was on site to drill the wells.

  

            

Diamond Offshore / Ocean Bounty MODU
Cellar Deck / Pedestal Crane and Tree
Handling System Upgrade

ICON Engineering upgraded Diamond’s Ocean Bounty MODU to improve the rig's tree handling capabilities. The scope included a major re-configuration of the cellar deck area, repositioning of two deck cranes, installation of a new deck crane and provision of a subsea tree skidding system.

The entire work scope was undertaken while the rig was under tow from Bass Strait to a location on the NW Shelf WA.

  

            

Newfield Petroleum / Coogee Resources
Challis Field Abandonment Studies

ICON Engineering was employed by Newfield Petroleum to perform a study of the abandonment of the Challis Field.

A review of available heavy lift and submersible transportation vessels was undertaken and recommendations were made regarding the technical and commercial merits of the various options.