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ExxonMobil (MEGI) Zafiro + Ekanga

ExxonMobil Zafiro

Equatorial Guinea Block B

Landmark: World’s first major development achieving concept to first oil in 18 months

Discovered in 1995, the Zafiro field is located on Block B approximately 40 miles (65 km) northwest of Equatorial Guinea in water depths of 1,400 to 2,800 ft (425 to 850 m). Production from the Zafiro Field began in August 1996. Current facilities include a fixed platform, a floating production unit, a floating storage and offloading unit and both platform and subsea wells.

By the time Zafiro Phase I was under way, it became obvious that an expansion would be inevitable. Phase II involved bringing another 16 subsea wells online, bringing daily production from 40,000 bopd to 120,000 bopd. Phase IIB saw the installation of five additional subsea wells for water injection and expanded electrical generation capacity.

Ekanga Notch consists of five subsea trees. Production from Ekanga Notch brings total production to 150,000 bopd.

Phase I:

  • Nine vertical 4"x2" 5,000 psi subsea trees with tubing head completion guide bases (CGBs)
  • Direct-hydraulic topside subsea tree and manifold control systems
  • Direct-hydraulic IWOCS and tree running tools
  • Installation, management and service 

Phase II:

  • Sixteen vertical 4"x2" 5,000 psi subsea trees
  • Four HOST® systems with retrievable pigging loops
  • Electro-hydraulic production controls
  • Universal Tie-In System (UTIS®) tool and all flowline termination equipment for tie-ins to HOST® manifolds 

Phase IIB:

  • Five horizontal 5"x2" 5,000 psi subsea trees with 7" tubing hangers for water injection

Spares:

  • Four vertical 4"x2" 5,000 psi subsea trees; one horizontal 5"x2" 5,000 psi subsea tree

Ek. Notch:

  • Four vertical 4"x2" 5,000 psi subsea trees; one horizontal 5"x2" 5,000 psi subsea tree
  • Electro-hydraulic production control systems
  • One HOST® template and manifold