Exploration Department

Maersk OilMaersk Oilpresentation topresentation to

Brazilian Oil, Gas & Offshore DelegationBrazilian Oil, Gas & Offshore Delegation

Brasil

Qatar

Kazakhstan

Algeria

Oman

GermanyUnited Kingdom

Denmark

Turkmenistan

Non OperatorOperator

PRODUCTIONPRODUCTION• Operating oil Operating oil

production of production of 390,000 bopd.390,000 bopd.

• Operating gas Operating gas production of 900 production of 900 mmscf/d.mmscf/d.

• Equity production: Equity production: 375,000+ boepd 375,000+ boepd

Denmark Denmark 160,000;160,000;Qatar 180,000; Qatar 180,000; Algeria 30,000; Algeria 30,000; Kazakhstan 5,000.Kazakhstan 5,000.

• 335,000 bopd & 900 mmscf/d335,000 bopd & 900 mmscf/d• First discovery 1966, first First discovery 1966, first

production 1972production 1972• First horizontal wells in North First horizontal wells in North

SeaSea• World record horizontal wells, World record horizontal wells,

20,000 ft completed section.20,000 ft completed section.

Danish North SeaDanish North Sea

Core Photo Core Photo Chalk from the Dan FieldChalk from the Dan Field

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Permeability mD

STOIIP

Remaining Recoverable

Produced

Oil-in-Place vs. PermeabilityOil-in-Place vs. Permeability

82% < 1mD

The low permeability problem is The low permeability problem is overcome by:overcome by:

• drilling long horizontal wellsdrilling long horizontal wells• stimulating the horizontal wellsstimulating the horizontal wells• waterflooding the reservoirswaterflooding the reservoirs

Horizontal well in porous chalkHorizontal well in porous chalk

MFF-19C

Stimulation TypesSegment of 1,000 ft reservoir section

Matrix Stimulation

Acid Fracture

CAJ Liner

Horizontal Well Completionwith Stimulation Fractures

Fracture propagation Fracture propagation parallel with wellparallel with well

Oil Zone

Transition ZoneWater Zone

Oil Production

Water Injection

High Pressure Water Injection in Horizontal WellHigh Pressure Water Injection in Horizontal Well

Water injection areas in the Dan FieldWater injection areas in the Dan Field

Danish North Sea: Total Oil ProductionDanish North Sea: Total Oil Production

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Conventional Wells

Horizontal Wells

Application of technologyApplication of technologyworldwideworldwide

Maersk Oil: Qatar

– Production: 180,000 bopd, mainly from low permeability limestones.

– Maersk technology making existing non commercial discovery commercial.

– Well productivity increase from 200 bopd to 7000 bopd.

– Production in 2004 some 200,000 bopd.

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First Oil: July 1994

Contract Awarded: July 1992

Qatar Fast Track Development: Production History

Brasil

Qatar

Kazakhstan

Algeria

Oman

GermanyUnited Kingdom

Denmark

Turkmenistan

Non OperatorOperator

Brazil