2010 12 14 Byrd Decommissioning In The Usa
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DECOMMISSIONING IN THE USA Presented to the Forum on Identifying the Synergies Between Identifying the Synergies Between Decommissioning and Wreck Removal December 2010 Presented by Robert C. Byrd, PhD, PE
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A summary of offshore facility decommissioning issues in the USA. Presented to the Society for Underwater Technology, London, UK, December 2010, by Robert C. Byrd, Ph.D., P.E.
Transcript of 2010 12 14 Byrd Decommissioning In The Usa
DECOMMISSIONING IN THE USAPresented to the
Forum on
Identifying the Synergies BetweenIdentifying the Synergies BetweenDecommissioning and Wreck Removal
December 2010Presented by
Robert C. Byrd, PhD, PE
Offshore Platform ComponentsOffshore Platform Components
The Decommissioning Process
Deck Removal
50 lb. Configured Bulk Chargeith Ei ht D t twith Eight Detonators
BP P15 R1JN Platform Removal
Cold CuttingCold Cutting
• Water abrasive cutting w/ internal pile cutter
Partial RemovalCENTER BRACING CUT OUTLEAVEING A MIN. ONE FOOT
STUB FOR SLINGS
M.W.L.
CUT CUT
CUTCUT OFF @ -86 ELEV
JUST ABOVE DOUBLER
LEAVE 6 INCHES OFMETAL ON THE OUTEREDGE OF LEG A1 & B1
LEAVE 6 INCHES OFMETAL ON THE OUTEREDGE OF LEG A4 & B4
Active Platforms by Water Depth
34803500
2500
3000
Plat
form
s
1500
2000
of A
ctiv
e P
442500
1000
Num
ber o
47 4 25
0
500N
0 to 200 201 to 400 401 to 800 801 to 1000 Above 1000Water Depth (Meters)
Number of Gulf Of Mexico OCS Platform Installed vs Removed (1942-2008)
225
250
150
175
200
f Pla
tfor
ms
100
125
150
Num
ber o
f
25
50
75
0
25
1940 1950 1955 1960 1965 1970 1975 1980 1985 1990 1995 2000 2005 2010
Year
Installed Removed
Number of Gulf Of Mexico OCS Platform Installed vs Removed (2000-2008)
200
225
150
175
f Pla
tfor
ms
75
100
125
Num
ber o
f
25
50
75
02000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010
Year
Installed Removed
US Gulf of Mexico Inventory Summary
2009 5‐YR AVERAGE
(2003 2008)
CUMULATIVE(1947‐2008)
2009 Balance
Remaining(2003‐2008) Remaining
Well D ill d
258 380 35,802 16,203Drilled
StructuresInstalled
63 92.4 6,838 3,712Installed
Wells PA 592 424 19,599
Structures 158 141 3,126Removed
,
US GOM– Deepwater Inventory
Structure Type Units
Fixed Platforms in Depth 400-600 ft (125 – 188 m) 41
Fixed Platforms, including Towers, in Depth 600 - 1700+ ft (188 – 530+ m) 29
Classic Spar 3
T S 12Truss Spar 12
Cell Spar 1
MiniDOC Spar 2
Mini or New Generation Tension Leg Platform (MTLP) 6
Conventional Tension Leg Platform (TLP) 9
Semi Submersibles (Semi) 8
TOTAL 111
US Pacific OCS Inventory
Platform Water Depth Total Name (ft) Weight
A 188 6,405
B 190 6,535
C 192 5,796
Edith 161 9,147
Ellen 265 14,016
Elly 255 9,400
Eureka 700 38,360
Gail 739 33,924
Gilda 205 11,690
Gina 95 1,426
Grace 318 11,256
Habitat 290 9,044
Harmony 1,198 78,380
Harvest 675 32,815
Henry 173 4,046
Heritage 1,075 67,515
Hermosa 603 29,516
Hidalgo 430 22,478
Hillhouse 190 5,929
Hogan 154 5,497
Hondo 842 28,713
Houchin 163 5,977
Irene 242 8,646
Hurricane Damage:Hurricane Damage: Major Impact in GOM sinceMajor Impact in GOM since
2005
What Changes After Hurricane Damage?
Everything, except the Regulations
Decommissioning Costs increase by 10x or more10x or more
Typical 2005 Hurricane Katrina Typical 2005 Hurricane Katrina DamageDamageDamageDamage
Hurricane Katrina Damage (cont )Hurricane Katrina Damage (cont )Hurricane Katrina Damage (cont.)Hurricane Katrina Damage (cont.)
2008 Hurricane Ike Damaged Platforms2008 Hurricane Ike Damaged Platforms
Vermilion 281 A– BeforeVermilion 281 A Before
The Platform – AfterThe Platform After
The Regulatory Environment:In a high state of flux: New people
in the BOEMRE (formerly MMS)( y )
Supplemental Bonding continues pp gto be under review
Reefing options being challenged
New NTL to remove “Idle Iron”
New Decommissioning NTLNew Decommissioning NTL
The NTL Defines “No longer useful for operations”The NTL Defines No longer useful for operations which is used in the regulations for:
• Wells• No production 5 years
• No plans for future operations
• Platforms• Toppled
• Has not been used in past 5 years for operations associated with exploration, development or production of oil/gasof oil/gas
Idle Wells and Facilities
USA Decommissioning Summary & Conclusions
• The GOM has a long history in Decommissioning.• The regulatory climate has grown uncertainThe regulatory climate has grown uncertain.• Deepwater Fixed Platform complete removal may be a challenge.g
• Limited availability of resources may be a challenge, particularly on the US West Coast.
• Reversibility a major issue in some deepwater systems.
Questions?
