DeepGelIn situ insulation of deep water

subsea structures

Paddy CollinsYthan Environmental Services

Subtech 05 December 2005

Challenge

� Connectors cannot be insulated until after connection has been made

� Failure to do so causes hydrates� Need to install insulation to connectors

subsea via ROV� Issues with �Dog Houses�

DeepGel

� Depth Independent insulation performance capable of achieving long cool down times.

� Does not need rated containment.

� Can be tailored to give different thermal properties

� Simple to apply, two component system

� Cost effective � Environmentally acceptable

and safe to use

DeepGel Performance and Applications

> 20 yearsDesign life at 75 C

0.00085 /KThermal Expansion

24 hoursCool Down

790 kg/m3Density

2310 J/kg.KSpecific heat Capacity

0.13 W/m.KConductivity

Performance Applications

�Risers�Bundles �Pipe in Pipe�Can handle complexity�Can handle changes in design�Enabling technology

Application via ROV

� Allows installation or retrofit of insulation subsea� Insulation of subsea components � connectors etc.� Link up with ROV company offers complete service� First Installation Jan 2006

First Application

� Deepwater (800m) offshore Africa

� Gel to insulate connectors on trees risers and in line connectors

� DeepGel injected into dog house subsea via ROV

� Test gel with ROV tool package Jan �05

� Dog house cool down tests Feb �05

� Subsea gel injection test May �05

� Order Gel Aug �05� Install Jan �06

Application Qualification

Factory Test

Cooldown Tests

� Gel formed in bulk

� Rate of Cooldownthree times slower with gel

� Able to insulate complex elements

�Subsea Gel Injection test�

Future

� Simple flexible versatile insulation technology

� Wide range of applications

� Safe, easy to use, environmentally responsible

� Can apply insulation �in situ� with ROV system

� Potential for simpler easier to make �dog houses�� Interest from other operators for similar

applications