Overview


Challenges
  • First oil-producing field in the Barents Sea
  • Complex structural environment
  • Wellbore trajectory restricted to 1.5° dogleg severity
Results
  • Gathered all measurements in real time using logging-while- drilling (LWD) services
  • Provided all interpretations in 3D environment
  • Mapped reservoir boundaries within 98 ft (30 m) of the wellbore
  • Drilled 3,281 ft (1000 m) with average ROP of 92 ft/hr
  • Provided real-time inversion answers
Case study details

The Goliat field, operated by Eni Norge AS, has two separate sandstone reservoirs planned for development— the late Triassic/Jurassic Realgrunnen subgroup at approximately 3,609 ft (1,100 m) mean sea level (MSL), and the Middle Triassic Kobbe formation at approximately 5,906 ft (1,800 m) MSL. The Goliat field is the first oil-producing field in the Barents Sea.

The operator selected two gas injectors as the optimum production solution. Before the Goliat development, there were no horizontal wells in the Kobbe formation.

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