This training course will help your team improve your decommissioning strategies to reduce your offshore liabilities. Delegates will gain an in-depth understanding of the Asia Pacific market to prepare your company for decommissioning projects in the coming years. Your team will have an overview of the future challenges for the decommissioning market for operators and contractors and the strategies that need to be implemented to move projects forward. You will be able to formulate an effective and efficient decommissioning supply chain of experienced contractors to remove offshore installations.

1. :
All Rights Reserved. OCS GROUP
All Rights Reserved. OCS GROUP
DECOMMISSIONING of
OFFSHORE INSTALLATIONS
Course Description:
There are over 600 offshore installations in the Asia Pacific region that are over 25 years old and need decommission-
ing in the near future. Oil & gas operators require essential planning and preparation of decommissioning strategies
to reduce their offshore liabilities. Indonesia has 276 platforms older than 20 years old, which is more than 50% of its
offshore facilities. In Malaysia, 48% of the platforms have exceeded their 25-year lifespan design. Combined with the
rest of the Asia Pacific region, the decommis-sioning market has a value of well over US$40 billion.
The main drivers for removal are current international treaties and conventions, to which the Asian-Pacific countries
are signatories, and local national laws and regulations. In recent years, many countries have improved their manage-
ment of future decommissioning cost management through revised regulations and updated contractual regimes that
clearly address decommissioning as part of the life cycle of an offshore facility.
This training course will help your team improve your decommissioning strategies to reduce your offshore liabilities.
Delegates will gain an in-depth understanding of the Asia Pacific market to prepare your company for decommission-
ing projects in the coming years. Your team will have an overview of the future challenges for the decommissioning
market for operators and contractors and the strategies that need to be implemented to move projects forward. You
will be able to formulate an effective and efficient decommissioning supply chain of experienced contractors to remove
offshore installations.
This training course is a better investment on your team’s time than competitive conferences. Delegates will learn
about actual strategies for offshore de-commissioning operations and not just upcoming business opportunities. The
course includes the latest updates for regulations in the Asia Pacific region and how legislative and guideline docu-
ments will affect your decommissioning projects moving into 2016.
4th - 6th April 2016 at the Westin Hotel - Kuala Lumpur, Malaysia
Dr Brian Twomey is a member of the Association of Southeast Asian Nations' Council on Petroleum (ASCOPE) decommissioning
group. He is the Managing Director of Reverse En-gineering Services Ltd and is responsible for decommissioning and abandon-
ment operations planning, decommissioning engineering, decommissioning law & regulations, peer review work and cost analysis.
He has worked on oil & gas decommissioning and pipeline issues for over 25 years and has carried out decommissioning stud-
ies/work on over 700 offshore & onshore installations worldwide.
Dr Twomey has worked on decommissioning in Africa, Australia, SE Asia, South America, Canada, Greece, Mexico, Norway,
Ireland, UK and USA. He has presented over 100 papers on decommissioning and has given numerous public and private training
courses on all as-pects of decommissioning.
Dr Twomey has a BSc in Mechanical Engineering from Birmingham, and an MSc in Applied Mechanics and a PhD in Applied
Mechanics from University of Manchester Institute of Sci-ence and Technology (UMIST). His PhD was in the explosive underwater
cutting of offshore structures.
Trainer’s Profile :
Dr Brian G Twomey
Managing Director
Reverse Engineering Services Ltd, UK

2. All Rights Reserved. OCS GROUP
DECOMMISSIONING of OFFSHORE INSTALLATIONS
• Understand the challenges with decommissioning guidelines in the Asia Pacific and the strategies that are currently
being implemented by regional regulators
• Gain an insight into the potential government assistance that may be available to your company during decommis-
sioning
• Detail the technical challenges of subsea decommissioning and examine the technical methods used to execute
these projects
• Focus on key case studies in subsea decommissioning and analyse the bespoke work that needs to be executed
across the Asia Pacific
• Define subsea best practice and lessons learnt so you fully understand how to approach complex operations during
subsea decommissioning
• Examine the challenges with well plugging and abandonment and the approaches that you need to take in order to
ensure effective project execu-tion
• Assess the options available within your cutting toolbox for different de-commissioning projects including explosives,
mechanical cutters and abrasive cutters
• Review the uncertainties when decommissioning pipelines including ma-terial conditions, location and burial of pipe-
line connections and crossings
Course Objectives :
Who Should Attend :
This course is designed for oil and gas operators,
vessel owners and ship builders who are involved with
decommissioning of offshore installations.
It is primarily aimed at:
• Field Managers & Superintendents
• Marine Operations Managers
• Marine Superintendents
• Marine Supervisors
• Marine Engineers
• Barge Superintendents & Deck Foremen
• Captains, Masters and Marine Officers
• Surveyors and Positioning Chiefs
• HSE Management and Staff
• Emergency Response Teams & Medics
• Derrick Crane Operators, Winch Engineers & Super-
visors
• AHTS Deck Leaders and Deck Crew
• Barge or Rig Winch Operators and Drill Crew
Attendees specific to the oil and gas industry
would include:
• Offshore Installation Managers
• Process Engineers
• Operations Engineers
• FPSO Project Managers
• Development Engineers
• Engineering & Integration Managers
• Project Manager
• Conceptual Design Engineers
• Naval Architects
• Construction Manager
• Lead Engineer
• Compliance Engineer
Construction and decommissioning teams of engi-
neers and operations team of oil and gas units or
ships from the fabrication and shipbuilding industries
will also bene-fit from the increased understanding of
decommissioning:
• Director, Ship Repair
• General Manager (Project Management)
• General Manager (Offshore & Conversion)
• General Manager (Commercial - Ship repair)
• Project Superintendent
• Project Manager
• Project Officer
• Project Engineer
• Mechanical Engineer
• Inspection Engineer
• Foreman Engineer

3. DECOMMISSIONING of OFFSHORE INSTALLATIONS
INTRODUCTION, LAWS & REGULATIONS AND
DE-COMMISSIONING EXPERIENCES
Session 1. WORLDWIDE DECOMMISSIONING LAWS &
REGULATIONS
1. International & regional laws & regulations
2. International laws, regulations & protocols applicable to
Indonesia and Malaysia
3. Examples of the adoption of legal framework and learn-
ing from other regions of the world
• USA (GOM, California & Alaska)
• Italy, Japan – IMO regulations
• North Sea –OSPAR regulations
Session 2. HOW DIFFERENT LAWS & REGULATIONS
CAN EFFECT DECOMMISSIONING COSTS
1. Comparison of the effect of international & regional laws
& regulations on decommissioning costs
2. Examples of how inflexible laws & regulations can esca-
late decommissioning costs with no real environmental or
social gain
3. Case-by-case
4. Flexibility to choose best option
Session 3. EFFECT PRODUCTION SHARING AGREE-
MENTS ON DECOMMISSIONING
1. Review of Production Sharing Agreements (PSA’s)
2. Technical interpretation of Indonesian and Malaysian
PSA’s applied to decommissioning
3. Financial implications of Indonesian and Malaysian
PSA’s applied to decommissioning
Session 4. WORLDWIDE DECOMMISSIONING EXPE-
RIENCE OVERVIEW
1. Offshore decommissioning experience in North Sea
2. Brent Spar incident & effect on decommissioning in
OSPAR region
3. Future challenges - platforms large than 4,000mt, in
depth greater than 400ft, etc.
4. Pipelines & subsea
5. Toppling & derogation experience
6. Well P&A overview (how many, etc.)
7. Lessons learned for Indonesia and Malaysia
Session 5. OFFSHORE DECOMMISSIONING EXPERI-
ENCE IN GULF OFMEXICO (GOM)
• GOM experience over the last 60 years
• Future challenges - platforms large than 4,000mt, in
depth greater than 400ft,etc.
• Pipelines & subsea
• Rigs-to-reef & toppling experience
• Wells
• Lessons learned for Indonesia and Malaysia
Course Agenda
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DAY 1
Session 6. OFFSHORE DECOMMISSIONING EXPERI-
ENCE IN ASIA
1. Case study 1: Various platforms in Brunei
2. Case study 2: Ketam A, Sarawak, Malaysia
3. Case study 2: Iwaki, Japan
4. Lessons learned from the Brunei, Malaysia and Japan
Session 7. TRANSITION FROM PRODUCTION TO DE-
COMMISSIONING
1. Decommissioning & COP
2. Life cycle of an oil or gas field
3. What triggers cessation of production
4. Transition between production & decommissioning
phases
5. Financial planning for decommissioning
6. Preparation of workforce for the decommissioning
phase
• Deferment of decommissioning
• Assessment of alternative uses of facilities
Session 8. REGULATORS PERSPECTIVE
1. Regulatory perspective of transition between production
& decommissioning phases
2. Decommissioning versus extension of production
period
3. Design of future PSA to maximize field production
4. Lessons learned from other countries
Session 9. DRIVERS WHICH EFFECT DECOMMIS-
SIONING OPTIONS
1. Background
2. Public perception & national interest
3. Environment
4. Technical, risk & HSE
5. Laws & regulations
6. Cost
Session 10. OPEN DISCUSSION: “WHAT ARE THE
MOST IMPORTANT ISSUES EFFECTING DECOMMIS-
SIONING IN INDONESIA AND MALAYSIA?”
1. History of decommissioning in Indonesia and Malaysia
2. Decommissioning challenges and opportunities in Indo-
nesia and Malaysia
3. Lessons learned from previous decommissioning in
Indonesia and Malaysia
4. Develop a list of issues which can effect Indonesian and
Malaysian current and future de-commissioning pro-
grammes

4. DECOMMISSIONING of OFFSHORE INSTALLATIONS
WELL PLUGGING AND ABANDONMENT, CONDUC-
TOR REMOVAL AND TOPSIDE REMOVAL
Session 11. WELL PLUGGING AND ABANDONMENT
(P&A), INTRODUCTION TO SUBSEA IN-STALLATIONS
& SYSTEMS
1. Fundamentals of well P&A
2. Typical well P&A regulations
3. Difference between onshore and offshore well P&A
4. Discussion on fundamental P&A options: rig versus
rigless
5. P&A options:
• P&A work support options
• P&A method evaluation & selection - imposed charac-
teristics
• P&A method evaluation & selection - output character-
istics
Session 12. INTRODUCTION TO DECOMMISSIONING
OF SUBSEA SYSTEMS
1. Types of subsea systems
• Flexible
• Static
• Fixed-structure based
• Floating systems based
• Subsea based processing
2. Types of subsea structures
3. Pipelines, flowlines, risers, umbilicals & power cables
4. Pipeline stabilisation systems
5. What must be decommissioned - laws, regulations &
guidelines
Session 13. SUBSEA DECOMMISSIONING CHAL-
LENGES & EXPERIENCE
1. Decommissioning subsea systems connected to a fixed
structure
2. Decommissioning subsea systems connected to a float-
ing facility
3. Decommissioning of pipelines, flowlines, umbilicals,
power cables and MEG lines
Session 14. DECOMMISSIONING OF CONDUCTORS
1. Decommissioning & disposal of conductors
2. Typical conductor removal regulations
3. Preparation of conductors for removal
4. Severing of conductors
5. Pulling the multistring conductors
6. Securing inner strings, sectioning, transporting conduc-
tors
7. Disposal of conductors
8. Lessons learned
9. Lessons learned from completed subsea decommis-
sioning projects
Course Agenda
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DAY 2
Session 15. SAFETY IN DECOMMISSIONING
1. Managed maintenance activity prior to decommission-
ing phase
2. Preparation of comprehensive lifting plans and proce-
dures
3. Use of experienced platform personnel in process
decommissioning
4. Use of barrier management & work area colour coding
for topside, hook down and prepara-tion work
5. Safety in onshore dismantling & disposal methods
6. Workpack presentation & tool box talks
7. Maintenance of equipment during offshore deconstruc-
tion work
8. Lessons learned
Session 16. OFFSHORE DECOMMISSIONING EQUIP-
MENT AND TOOLS 1: DECOMMISSIONING HEAVY
LIFT & CLEANING EQUIPMENT
1. Heavy lift equipment
2. Marine transport & offloading Systems
3. Cleaning systems (pipelines, topsides & jackets)
4. Grillage & sea fastening
Session 17. OFFSHORE DECOMMISSIONING EQUIP-
MENT AND TOOLS 2: DECOMMISSIONING CUTTING,
DREDGING & TRENCHING EQUIPMENT
1. Proven underwater cutting methods
• Diamond wire cutting
• Explosive cutting
• Abrasive water jet cutting
• Hydraulic shears
• Chop saws
2. WROV
3. Dredging & trenching systems
Session 18. ENVIRONMENT: CLEANING & PREPARA-
TION OF THE FACILITY FOR DECOMMIS-SIONING
1. Preparation of Asset Register & identification of hazard-
ous waste
2. Inventory checking of topsides, jacket, pipelines, flow-
lines, power cables, subsea facilities (templates, PLEMs
etc.), wells etc. to develop an accurate asset register
3. Identification of location & quantity of hazardous materi-
als
4. Waste disposal routes, waste tracking & auditing proce-
dures
5. Typical regulations – how clean is clean?
6. Depressurisation, cleaning, isolation, purging and
cleaning of the process systems
7. Cleaning and treating pipelines.
8. Disconnection of pipelines, spool pieces etc.

5. DECOMMISSIONING of OFFSHORE INSTALLATIONS
Session 19. DECOMMISSIONING OF PLATFORM TOP-
SIDES
1. Selection of Topsides Decommissioning Option
2. Data gathering and assessment & pre engineering
survey
3. Identification of local vessels, equipment and facilities
4. Identification of all permitted topside removal options
5. Option selection balancing regulation, technical, envi-
ronment, risk, public perception, cost etc.
6. Planning, engineering of selected topside decommis-
sioning option
7. Identify potential reuse options for all or part of the top-
sides
8. Contract strategy & bidder selection process
9. Lessons Learned
10. Make-safe activities
11. Major hookdown activities including module separa-
tion, removal of obstructions in way of rigging, refurbishing
of padeyes, etc.
12. Design of sea fastening & grillage
13. Removal of facility elements and transport to disposal
site
14. Decommissioning of risers & caissons
Course Agenda
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DAY 2
JACKET REMOVAL AND TOPSIDE REMOVAL
Session 20. DECOMMISSIONING OF JACKET STRUC-
TURES
1. Jacket removal methods & issues
2. Laws & regulations applied to jackets
3. Differences between jacket installation & removal
4. History of jacket removal worldwide
5. Techniques for the decommissioning of small & large
jackets
6. Creation of artificial reefs
7. Drill cuttings and shell mounds
8. Marine growth
9. Lessons Learned
Session 21. SELECTION OF JACKET DECOMMIS-
SIONING OPTION
1. Data gathering and assessment & pre engineering
survey
2. Identification of local vessels, equipment and facilities
3. Identification of all permitted jacket removal options
4. Option selection balancing regulation, technical, envi-
ronment, risk, public perception, cost etc.
DAY 3

6. DECOMMISSIONING of OFFSHORE INSTALLATIONS
Course Agenda
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5. Use of international cost estimation standards
6. Evolution, capture and validation of cost estimation
models using shared data from ASCOPE countries
Session 27. HOW TO BUILD A DEFENSIBLE DECOM-
MISSIONING COST ESTIMATE
1. Establishment of clear decommissioning cost estimate
guidelines
2. Data quality
3. Preparation of a basis of estimate
4. Verification of input data
5. Use of work breakdown structure (WBS) systems
6. Selection of the cost estimate technique in the life
cycle of the field
7. Benchmarking of cost estimate accuracy
8. Learning from previous decommissioning projects
Session 28. PUBLIC PERCEPTION & REPUTATION
1. nfluence of key stakeholders on decommissioning
2. Stake holder plan
3. Brent Spar- Lessons learned worldwide
Session 29. SUMMING UP & THE WAY FORWARD
1. Decommissioning Challenges for SE Asia
2. Status of Indonesian and Malaysian regulations
3. Funding
4. Training
5. Scheduling & campaigns
6. Use of local equipment & workforce
7. The way forward
5. Planning, engineering of selected jacket decommis-
sioning option
Session 22. DECOMMISSIONING OF JACKET
1. Preparation of the jacket for removal
2. Major hookdown activities including clearing access to
jacket cut locations, removal of ob-structions in way of
rigging, etc.
3. Grillage, sea fastening and transport to disposal site
4. Decommissioning of risers & caissons
5. Example of the removal of a small jacket
6. Example of the removal of a large jacket
Session 23. JACKET REUSE AS AN ARTIFICIAL
REEF
1. History of rigs to reefs
2. US Gulf States artificial reef programmes (Louisiana;
Mississippi, Alabama & Florida)
3. California reef programme
4. Asian rigs to reef programmes
5. Near shore reefs
Session 24. CLEANING OF PIPELINES, FPSO &
SUBSEA FACILITIES
1. How clean is clean? –regulations, laws & guidelines
2. Methods for cleaning of pipelines
3. Cleaning of FPSO installations
4. Cleaning of subsea facilities
Session 25. ONSHORE DISPOSAL & SITE RESTO-
RATION
1. Offloading
2. Recycling hierarchy
3. Onshore dismantling techniques
4. Site restoration methodologies
5. Examples from GOM, North Sea & Asia
6. Liabilities
Session 26. COST ESTIMATION FOR DECOMMIS-
SIONING
1. Importance of accurate cost estimation models in
decommissioning
2. Why accurate cost estimating is key
3. Showing how the decommissioning cost estimation
model is the “spine” of decommissioning planning
4. The importance of the “base case” cost estimate model
in identification of all platform prepa-ration, engineering,
environmental, risk & safety, cleaning, disposal studies
DAY 3