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Project overview

Exploration wells drilled in the Straboek Block

  • Liza-1 well discovery was announced in May 2015
  • Liza-2 well was drilled and tested in July 2016
  • Liza-3 well was drilled in October 2016, confirming a world-class resource discovery in excess of 1 billion oil-equivalent barrels
  • Appraisal drilling at Liza 3 identified an additional high quality deeper reservoir directly below the Liza field, which is estimated to contain resources between 100 and 150 million oil-equivalent barrels
  • Skipjack-1 was drilled in September 2016; this did not encounter commercial quantities of hydrocarbons
  • Payara-1 well discovery was announced in January 2017; Payara is ExxonMobil’s second oil discovery on the Stabroek Block and was drilled in a new reservoir. it encountered more than 95 feet of high quality, oil bearing sandstone reservoirs; The well data will be analyzed in the coming month to better understand the full potential of the well
  • Snoek prospect, which is located south of the Liza discovery; will be drilled following completion of Payara

Guyana Straboek map

Liza Phase 1 project

Development description

  • Liza Phase 1 development is approximately 190 kilometers offshore in water depths of 1500 – 1900 meters
  • Liza Phase 1 development will utilize a spread moored Floating Production Storage and Offloading (FPSO) vessel with an oil production capacity of 100,000 barrels per day 
  • Two drill centers are envisioned with 17 wells total: eight production wells; six water injection wells; three gas injection wells

Liza Phase 1 project

Recent activities

  • Esso Exploration and Production Guyana Limited (EEPGL) submitted an application for a production license and the initial development plan for the Liza field in December 2016
  • The development plan includes development drilling, operation of the FPSO, and subsea, umbilical, riser and flowline systems
  • EEPGL awarded contracts to SBM offshore for an FPSO vessel.  Under the contract, SBM offshore will perform front end engineering and design (FEED) for the FPSO, and, subject to a final investment decision in 2017, will construct, install and operate the vessel.

FPSO vessel
Photo — Floating Production Storage and Offloading (FPSO)

Liza Phase 1 project

Field layout

fpso subsea field layout

Liza Phase 1 project


Subsea, Umbilical, Risers and Flowlines (SURF) Installation

  • Fleet of specialty and multi-purpose vessels for installation
  • Majority of SURF equipment shipped directly offshore, some staging of materials at shorebase 
  • Placement of risers and flowlines on the seabed until FPSO arrival
  • Concurrent drilling and installation operations

Floating Production Storage and Offloading (FPSO) Installation

  • Installation of mooring system to keep the vessel in place 
  • Connection of FPSO to mooring system and SURF components
  • Perform final onsite commissioning of remaining FPSO and SURF systems
  • Startup of FPSO and SURF components for production operations

Liza Phase 1 project

Logistics support

  • Logistics support for 1 FPSO and 1 to 2 drilling vessels
  • Use of shorebase, warehouses, pipeyards and waste facilities
  • Marine support vessels
  • Aviation support

Liza Phase 1 project

Production operations

FPSO offloading to conventional tanker illustration

  • FPSO capable of producing 100,000 barrels of oil per day
  • FPSO has 60-80 personnel for routine operations
  • Tug assisted offloading to conventional tanker approximately every 5-10 days at peak production