Project no: 930

Project name: Jubilee Field Development Phase-1

Project description: Tekmar Subsea

Project completion date: October 2009

 

Description of product

 

26-off 24" NS suction pile plugs

52-off suction pile receptacles

ROV torque tool multipliers

 

These products were installed onto our clients suction piles topside and are capable of ROV removal and re-installation subsea.

 

The 24" NS plugs were designed to seal a differential pressure 7.5 bar.g. All products were individually pressure tested, witnessed by a client representative and supplied with a full fabrication certification package.

 

The plugs were designed to have a maximum submerged weight of 60 kg. To achieve this Tekmar manufactured in-house subsea buoyancy systems capable of operation up to depths of 1,500 msw. The buoyancy modules were mounted integrally within the buoyancy plug.

 

Our client also specified a maximum torque setting of only 150 Nm. This would enable activation by the ROV manipulator and reduce installation time. Tekmar designed and supplied a sub sea torque multiplier that increases the initial activation torque up to a setting that were the the desired seal was achieved.

 

The plug was fitted with ROV intervention features and also a class 3 torque tool receptacle which would allow the sealing pressure to be increased if required.

 

Client benefits provided by solution

• Lightweight, low torque ROV installation

 

Project Responsibilities

• TECHNIP	Marine contractor
• TEKMAR SUBSEA	Equipment supplier