MFP – Installation using a Jack up Rig
Dr. Sanjaya Pillai, Business Head, GLND India,
Aswathy Ezhampakkel, Sr. Naval Architect, GLND Qatar
www.gl-nobledenton.com
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.
2. Existing no. of Production wells is not sufficient to take care of increased flow.
Additional wells needed for tapping the resources.
3. Marginal fields exploitation, Minimum facilities for feasibility considering other factors
like cost, grouping of fields etc.
4. Concept of Minimum Facilities Platforms
MFP - Installation
INSTALLATION PERSPECTIVES
1. Risk during Load-Out, Transportation and Installation
2. Reconsideration of Design Parameters
3. Safety during Installation
4. Size and Weight of the Structure Involved
5. Installation Methodology - innovative
6. Identify Marine Procedures
7. Reasonable risk from Owners/Underwriter’s points of view
Installation – A Case Study
INSTALLATION of MFP – A Case Study
1. Operator – Middle East
2. Feasibility Study for Installation with a Rig
3. Additional wells needed for accommodating increased oil flow => adjacent additional
platform with Minimum Facilities proposed
4. Input from various contractors taken during feasibility study
5. Feasibility Study confirmed after thorough evaluation of feasibility of Installation
6. GLND developed Installation Procedures and Marine Procedures
Installation – A Case Study
INSTALLATION of MFP – A Case Study - Design considerations
1. Deciding parameters
a. Rig Capacity of Lift
b. Rig Reach of Lift
2. Safety of Existing Platform
a. Installation Methods
b. Risk Assessment and Mitigation
Installation – A Case Study
INSTALLATION of MFP – A Case Study - Steps
1. Position the Rig near to the existing platform
2. Cantilever extended, Install Pin pile
3. Template loaded, sea-fastened and arrives at the location
4. Template Lift with Rig, Lowered and Placed on the Bottom
5. Install Legs(Conductors)/ Work Platforms
6. Topside Lift after Rigging inspection
7. Final adjustment using tugger winches
8. 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, seafastened 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
1. Rig Limitations – DAF to be considered
2. Weather during Installation – very important
3. Positioning of the Rig – rig move and soil assessment
4. Placing of the Topside simultaneously on conductors/legs
5. Tugger Line and Lifting Gear – to be designed
6. Leveling of the Platform – suit to site
Installation – A Case Study
SUMMARY
1. Design Parameters - Reconsideration
2. Risk Assessment and Risk Mitigation
3. Installation Methodology – Innovation
4. Custom made procedures/design
Thank you for your attention!
For further information visit www.gl-nobledenton.com