Brazilian Oil, Gas & Offshore Delegation Maersk Oil presentation to Brazilian Oil, Gas & Offshore Delegation

Brasil Qatar Kazakhstan Algeria Oman Germany United Kingdom Denmark Turkmenistan Non Operator Operator

Operating oil production of 390,000 bopd. Operating gas production of 900 mmscf/d. Equity production: 375,000+ boepd Denmark 160,000; Qatar 180,000; Algeria 30,000; Kazakhstan 5,000.

Danish North Sea 335,000 bopd & 900 mmscf/d First discovery 1966, first production 1972 First horizontal wells in North Sea World record horizontal wells, 20,000 ft completed section. Danish North Sea

Core Photo Chalk from the Dan Field

Oil-in-Place vs. Permeability 82% < 1mD

The low permeability problem is overcome by: drilling long horizontal wells stimulating the horizontal wells waterflooding the reservoirs

Horizontal well in porous chalk

MFF-19C

Stimulation Types Segment of 1,000 ft reservoir section Matrix Stimulation Acid Fracture CAJ Liner

Horizontal Well Completion with Stimulation Fractures

Fracture propagation parallel with well Oil Zone Transition Zone Water Zone Oil Production Water Injection

High Pressure Water Injection in Horizontal Well

Water injection areas in the Dan Field

Danish North Sea: Total Oil Production 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 10 20 30 40 50 60 70 80 90 100 110 Conventional Wells Horizontal Wells

Application of technology worldwide

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.

Qatar Fast Track Development: Production History First Oil: July 1994 Contract Awarded: July 1992

Brasil Qatar Kazakhstan Algeria Oman Germany United Kingdom Denmark Turkmenistan Non Operator Operator

Brazil