Project Profile
Value: Undisclosed
Location: 5(a), 50 miles (80 kilometers) offshore the eastern coast of Trinidad and Tobago
Start-up Year: July 2006
Reserves: 36 MMcf/d (1 MMcm/d) and 430 bpd of condensate
Water depth: -
After securing 3D seismic on the block in 1998, Dophin Deep was discovered in 983 feet (300 metres) of water on Block 5(a) of the ECMA in August 1998. Spud in April 1998, the Dolphin Deep-1 exploration well resulted in 546 net feet (166 net metres) of pay from three zones and tested at an initial rate of 36 MMcf/d (1 MMcm/d) and 430 bpd of condensate. Immediately, project partners foresaw developing the field via existing infrastructure on the Dolphin field nearby. Approved by the Ministry of Energy in Trinidad and Tobago in the summer of 2002, the Dolphin Deep development is the first subsea development in the country. Developed via two subsea wells, Dolphin Deep is tied to the Dolphin platforms for transportation to shore.
Awarded in 2003, FMC was contracted to fabricate and install the two horizontal trees, one PLEM and UWD-15 wellhead systems, as well as the subsea control modules and associated subsea equipment. Coinciding with the subsea development, the Dolphin platforms were upgraded to accommodate the Dolphin Deep production. In 2002, the Wood Group won the contract to provide the engineering, procurement and construction management services for the facility upgrade to the Dolphin platform. Supplying some 80 - 100 MMcf/d (2.3 - 2.8 MMcm/d) of natural gas to the Atlantic LNG Train 3 and 120 MMcf/d (3.4 MMcm/d) to Atlantic LNG Train 4, production commenced at Dolphin Deep in July 2006. In 2015, net daily production from the three fields(The Dolphin ,Dolphin Deep and Starfish) development averaged 116 million cubic feet of natural gas.
ECMA gas is transported from the original Dolphin development via two pipelines to shore. The first pipeline delivers gas to the NGC by connecting to the Poui platform and then linking to the domestic network. Another subsea pipeline extends from the Dolphin facilities to the Beachfield receiving terminal and from Beachfield, the gas is routed through the Cross Island Pipeline system, ultimately connecting with Atlantic LNG. Awarded to Acergy (formerly Stolt Offshore) in an US$80 million contract, this 60-mile (96-kilometre) subsea pipeline was built in 2006.
Operators:
BG Group: Operator with 50% interest
Chevron: 50% interest
Contractors:
Acergy: Construction of the Cross Island Pipeline
FMC: Fabrication and installation of the two horizontal trees, as well as the subsea control modules and associated subsea equipment
JP Kenny: FEED contract
Wood Group: Engineering, procurement and construction management services for the facility upgrade to the Dolphin Deep platform
Xodus Group: US$3.2 million FEED study launched in February and will be completed later this summer, involving a produced water systems upgrade
Seaway Heavy Lifting: Transportation and installation contract for the Dolphin Module