Compact Seminar

1
Offshore Seismic exploration

• Compact Seminar
• Videnskapsakademiet
• 1st February, 2007
• Stephan Behrens
• Area Sales Manager

2
Offshore Seismic exploration

• Air Gas Compressors
• Main Emergency engine starting
• Control, Instrument Service air
• Breathing air
• Emergency Fire Pumps
• Motion Compensation
• Hazardous area compressors
• Inert gas blanketing
• Seismic reflection air guns

3
Main Emergency engine starting

• Air-cooled
• 2-stage up to 40 bar 80 m³/h
• 3-stage up to 45 bar 360 m³/h
• Water-cooled
• 2-stage up to 30 bar 430 m³/h
• 33 worldwide market share

4
Control Service Air

• Low pressure Piston compressor
• Air- and water-cooled up to 12 bar and 450 m³/h
• LP Screw compressor
• Air- and water-cooled up to 13 bar and 4.000
  m³/h

• Vasco da Gama
• WP65L two-stage control air compressor

5
High-pressure Breathing Air

• Safety, Fire Rescue
• Cargo hold inspection
• Fire-fighting
• Under-water diving inspection
• Decompression chambers

• Air-cooled
• 3 4-stage up to 420 bar 120 m³/h
• Final purification meets all International
  Standards
• eg EN12021, DEF STAN 68 284, STANAG 1372
  and USA (NFPA 1500 grade E)

6
Drill Rig Motion Compensation

• Semi-submersible rigs
• Crown Mounted Compensators
• Drill String
• Passive Active Heave Compensation
• Marine Riser Tensioners
• Push Pull Tensioning

7
Drill Rig - HP Air Compressor
HP Dryer
Control Panel

• Air-cooled
• 4-stage up to 420 bar 120 m³/h
• Water-cooled
• 4-stage up to 350 bar 170 m³/h
• Fully automatic control
• Start/Stop demand
• High-pressure Air Dryer
• desiccant dp -40C
• option refrigerant Dryer 3C

Electric Motor
HP Air Compressor
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Motion or Heave Compensation

• AIR
• Water-cooled compressor 300bar 150m³/h
• dry air (minus) 40C
• 300 bar storage system
• NITROGEN
• Nitrogen gas Generator
• 97 purity
• 300 bar storage system
• dry gas (minus) 70C

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Inert gas blanketing - Nitrogen
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Inert gas blanketing - Nitrogen Compressor

• Nitrogen gas Compressor
• WP5000 booster
• Intake 6 8 bar
• 98 purity (minus) 40C
• 170 Nm³/h
• Final pressure 310 bar
• dry gas (minus) 70C

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NitroFlex ..NITROGEN OUT OF THIN AIR

• Emergency high-pressure Nitrogen
  Generator..only a single power connection
  required
• 96 - 99.5 nitrogen purity
• 5 to 35 m3/h to 300 bar
• via cooperation partner

12

Marine Seismic Surveying

• Air-cooled
• 4-stage up to 420 bar 120 m³/h
• Water-cooled
• Multi-stage up to 400 bar 1000 m³/h
• Fully automatic control
• Start/Stop demand
• High-pressure Air Dryer
• dewpoint -40C
• High-pressure air storage
• 350bar cylinders

Typical array of 12-48 air guns towed behind Ship
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Marine Seismic Surveying

• Water-cooled Air Compressor /Booster
• WP6000
• Three,four or five stage
• up to 400 bar 1000 m³/h
• Multiple Units.
• Electric or Diesel drive
• Direct-drive
• Compound Air or gas booster
• Engineered to specific requirements

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Offshore Seismic exploration

• Thank you !