MFP – Installation using a Jack up Rig Dr. Sanjaya Pillai, Business Head, GLND India, Aswathy Ezhampakkel, Sr. Naval Architect, GLND Qatar

History October 2006: NDC started operations in Mumbai by opening a project office to execute 4WPP & BCPB2 projects 1st April 2008: Noble Denton India Pvt Ltd established January 2009: ISO 9001 certification awarded to Noble Denton India Pvt Ltd April 2009 GL acquired Noble Denton April 2008-May 2012: NDI executed many warranty projects.

GL Group Business Streams GL NOBLE DENTON (OIL and GAS) Advanced Engineering and Consulting Marine Operations and Consulting Technical Assurance Design and Execution GL MARINE (CLASS) Classification Society GL GARRAD HASSAN (RENEWABLES) Renewables

MFPs -Definition BACKGROUND 1. Production wells on the verge of depletion, Additional wells can be drilled in the near vicinity if some marginal fields are available near the existing facilities. Existing no. of Production wells is not sufficient to take care of increased flow. Additional wells needed for tapping the resources. Marginal fields exploitation, Minimum facilities for feasibility considering other factors like cost, grouping of fields etc. Concept of Minimum Facilities Platforms

MFP - Installation INSTALLATION PERSPECTIVES Risk during Load-Out, Transportation and Installation Reconsideration of Design Parameters Safety during Installation Size and Weight of the Structure Involved Installation Methodology - innovative Identify Marine Procedures Reasonable risk from Owners/Underwriter’s points of view

Installation – A Case Study INSTALLATION of MFP – A Case Study Operator – Middle East Feasibility Study for Installation with a Rig Additional wells needed for accommodating increased oil flow => adjacent additional platform with Minimum Facilities proposed Input from various contractors taken during feasibility study Feasibility Study confirmed after thorough evaluation of feasibility of Installation GLND developed Installation Procedures and Marine Procedures

Installation – A Case Study INSTALLATION of MFP – A Case Study - Design considerations Deciding parameters Rig Capacity of Lift Rig Reach of Lift Safety of Existing Platform Installation Methods Risk Assessment and Mitigation

Installation – A Case Study INSTALLATION of MFP – A Case Study - Steps Position the Rig near to the existing platform Cantilever extended, Install Pin pile Template loaded, sea-fastened and arrives at the location Template Lift with Rig, Lowered and Placed on the Bottom Install Legs(Conductors)/ Work Platforms Topside Lift after Rigging inspection Final adjustment using tugger winches Positioning Levelling and welding the Topside on the legs

MFP – Installation Perspectives Step #1, #2 Position the Rig near to the existing platform, Cantilever extended, Install Pin pile Outreach -45’ Port/Sbd- 14.5’

MFP – Installation Perspectives Step #3 Template loaded, sea-fastened and arrives at the location No welding to the deck (timber)

MFP – Installation Perspectives Step #4 Template Lift with Rig, Lowered and Placed on the Bottom Mooring: Bow -1 Stern - 2

MFP – Installation Perspectives Step #5 Install all other Legs/ Work Platforms Cutting at the desired elevation

MFP – Installation Perspectives Step #6 Topside Lift after Rigging inspection Crash rail Air gap

MFP – Installation Perspectives Step #7 Final adjustment using tugger winches Positioning is a delicate job

MFP – Installation Perspectives Step #8 Positioning, Levelling and welding the Topside on the legs

Installation – A Case Study INSTALLATION of MFP – A Case Study - Issues Rig Limitations – DAF to be considered Weather during Installation – very important Positioning of the Rig – rig move and soil assessment Placing of the Topside simultaneously on conductors/legs Tugger Line and Lifting Gear – to be designed Leveling of the Platform – suit to site

Installation – A Case Study SUMMARY Design Parameters - Reconsideration Risk Assessment and Risk Mitigation Installation Methodology – Innovation Custom made procedures/design

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