SUB SEA SYSTEMS INTERNATIONAL

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• SUB SEA SYSTEMS INTERNATIONAL
• NIGERIA LIMITED
• CLOCKSPRING

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AGENDA

• Introduction
• Progress To-Date
• Cost Comparison Clock Spring vs Conventional
  Repairs
• Highlights of Selected Riser Repairs
• Value Added to Operation
• NNPC and its JV partners completed to date in
  Nigeria waters

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SUB SEA SYSTEMS INTERNATIONAL NIGERIA LIMITED

• Nigerian Company
• Pipe and Pipeline Repairs
• Sole Agent for Clock Spring in Nigeria
• Subject matter experts for composite
• repair technology

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CLOCK SPRING
Clock Spring is a composite repair system used to
reinforce corrosion or other blunt defects in
both high and low pressure pipelines, restoring
the integrity of the pipe, enabling the pipe to
return to full service.
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Highlights of Progress To-Date

• Over 84 Clock Spring riser topsides piping
  repairs completed during 2006 to 2009.
• Over 70,000 man hours completed without any
  recordable injuries.
• Several major emergency repair jobs completed
  using Clock Spring
• Meji PP topsides piping
• Okan Valve Platform
• IBP 26 riser repair

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• Cost Savings Realized Using Clock Spring
• vs.
• Conventional
• Riser Repair Methods

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Value Added to Operation

• Conventional Welded Repairs
• vs. Clock Spring Repairs
• SEWOP with crew working 25 days can typically
  repair 2 risers by conventional means (i.e.,
  welded repairs). Cost for this work 500,000.
• For the same cost, a four man Clock Spring crew
  can repair eighteen (18) 6 risers (i.e.,
  conventional welded riser repairs are 9 times
  more expensive than equivalent Clock Spring
  riser repairs).

Typical SEWOP used for conventional welded riser
repairs
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• Highlights of Riser Repairs

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26 Riser Repair

• Riser handles production of (
  70,000 BOPD).
• Riser condition before repair (riser was
  previously coated and wrapped with fabric for
  corrosion protection, but was not successful in
  arresting further corrosion).

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26 Riser Repair

• During Repair
• Corrosion removed from riser revealing heavy
  pitting of riser pipe.

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26 Riser Repair

• During Repair
• Clock Spring Repair Kits are applied to riser.

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26 Riser Repair

• Results of Completed Project
• Zero Recordable Incidents
• Permanent Repair
• 3 week repair program
• In Service repair
• 84,000 labor Cost
• Production not impacted
• ( 70,000 BOPD)

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BOP 26 Departing Riser to SBM

• Condition Before Repair
• Riser handles all export production at BOP
• ( 300,000 BOPD average production).
• Temporary repair clamp installed to contain prior
  leak on riser.

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BOP 26 Departing Riser to SBM-3

• During Repair
• A welded repair sleeve placed over the leak point.

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BOP 26 Departing Riser to SBM-3

• During Repair
• Clock Spring applied to remainder of riser.

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BOP 26 Departing Riser to SBM-3

• Results of Completed Project
• Zero Recordable Incidents
• Permanent Repair
• 4 week Program
• 120,000 labor cost
• Tanker Loading not impacted during repairs

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Valve Platform Emergency Repairs
Platform Prior to 5 July 2009 Militant Attack
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Valve Platform Emergency Repairs
Platform After 5 July 2009 Militant Attack
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Valve Platform Emergency Repairs
Platform After 5 July 2009 Militant Attack
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Valve Platform Emergency Repairs
Platform During 6-week Repair Period
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Valve Platform Emergency Repairs
Platform Nearing Completion of 6-week Repair
Period
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Valve Platform Emergency Repairs
Platform After Emergency Repairs Completed
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Valve Platform Emergency Repairs
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PP Emergency Piping Repairs
Leak in PP 10 Oil Outlet to Chemelectric 27
Nov 2008
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PP Emergency Piping Repairs
Clock Spring Wet Wrap Repairs In Progress
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PP Emergency Piping Repairs
Completed Clock Spring Wet Wrap Repairs
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10 Departing Jkt 2 to PP

• Condition Before Repair
• Monopod Well Jacket.
• Heavy corrosion above Splashtron riser coating.

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10 Departing Jkt 2 to PP

• During Repair
• Heavy corrosion removed.
• Significant riser wall loss.

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10 Departing Jkt 2 to PP

• During Repair
• Clock Spring repair kits applied to riser.

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10 Departing Jkt 2 to PP

• Results of Completed Project
• Zero Recordable Incidents
• Permanent repair
• 9 day repair program
• In service repair
• 36,000 labor cost
• Production not impacted (8,000 BOPD)

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10 Incoming from PP

• Condition Before Repair
• Severe Corrosion.
• Corroded flange bolts and nuts.
• Corroded riser clamp.

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10 Incoming from M PP

• During Repair
• Riser cleaned down to bare metal in preparation
  for application of Clock Spring repair kits.

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10 Incoming from PP

• During Repair
• New Teflon-coated blots installed.

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10 Incoming from PP

• During Repair
• New riser clamp installed on jacket after
  application of Clock Spring repair kits.

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10 Incoming from PP

• During Repair
• Clock Spring repair in progress.

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10 Incoming from PP

• Results of Completed Project
• Zero Recordable Incident
• 12 day program
• In service repair
• 48,000 labor cost
• Production not impacted (8,000 BOPD)

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Riser Integrity Documentation
Detailed Inspections Close
out reports generated for each repair.
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NNPC and its JV partners completed to date in
Nigerian waters

• SSSI has completed over 84 topsides piping and
  riser repairs during 2006 to 2009, safeguarding a
  significant portion of NNPC and its JV partners
  daily production in Nigerian waters (i.e.,
  300,000 BOPD). One major riser repair project (
  1 PP 26 riser repair) was carried out while the
  riser remained in service at 70,000 BOPD, with
  zero impact on production.
• Several emergency topsides piping and riser
  repairs completed during the previous 3.5 years
  that SSSI has been installing for NNPC and its JV
  partners
• In addition to the main oil risers that make-up
  oil shipping networks, One of NNPC and its JV
  partners has over 1,100 well and gas lift
  flowline risers in its Offshore operations, with
  approx. 50 of them reaching the point of
  potential failure. Clock Spring offers
  advantages in both the cost and scheduling of
  these riser repairs.

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NNPC and its JV partners completed to date in
Nigerian waters
Clock Spring

• SSSI has compiled an excellent safety track
  record during the previous 3.5 years of Clock
  Spring repair work theyve done in Escravos at
  the end of 2009, SSSI has worked over 70,000
  manhours with zero recordable incidents
• Clock Spring riser repairs offer a significant
  cost advantage compared to conventional welded
  riser repair methods. Conventional welded riser
  repairs are typically 9 times more expensive than
  equivalent Clock Spring repairs.
• Clock Spring riser repairs can typically be done
  while the riser remains in service, minimizing
  the lost production that is associated with
  performing conventional welded riser repairs
• SSSI is the sole agent for Clock Spring products
  and installation services in Nigeria and the
  recognized expert in its application

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Clock Spring
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Clock Spring
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Clock Spring
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Clock Spring