Project Profile
Value: Undisclosed
Location: Block 05-1A, approximately 250 kilometres offshore Vietnam
Water Depth: 361 ft
Capacity: 6,300 bopd
The Dai Hung oilfield lies at a water depth of 361ft offshore Vietnam. The field is located in block 05-1A 265km south of Ba Ria-Vung Tau province. The capacity of the field is 6,300bopd and 4.32mmcfd. The estimated life of the field is until 2025.
Petrovietnam Exploration Production (PVEP) is operator of the field and owns a 50% interest. Vietnam Oil and Gas Group (PetroVietnam) owns the remaining stake.
Phase I
BHPP drilled seven appraisal and development wells. Four of the seven wells were completed as production wells by August 1994. First production from the field began in October 1994. Two additional wells were drilled and completed by early 1995. Eleven wells were drilled for oil to be drilled from the field; two were used for water injection. All the wells were tied-back to Dai Hung I FPU (FPU-DH1) through two flow-lines and one umbilical.
In 1999, the BHP consortium withdrew from the project, citing difficulties in the development of a deepwater field, the distance of the field from the shore and the need for complex subsea technologies, as reasons for withdrawal. Vietsovpetro handed over the development of the field to PVEP. PVEP was appointed as the operator of the field in 2003.
Phase II
The Vietnamese Government approved the second phase of development in 2007. It included drilling three new wells, and the installation of a fixed wellhead platform, Dai Hung Well Head Platform 1, with 12 slots for drilling. The new wells were tied-in to the platform and FPU-DH1 through flowlines and umbilicals.
PVEP signed a seven-year loan agreement for $200m with VietinBank in May 2011 for the expansion of the field. The expansion plan is part of Vietnam\'s efforts to increase national oil production due to declining oil production rates from ageing fields.
In June 2011, a second wellhead platform called WPH-DH2 was installed at the field. The new platform became operational in August 2011, tripling the field\'s production to 11,600bopd. Along with the platform, five wells were brought into production as part of a plan to increase the field\'s output to 18,000bopd.
Operator:
PVEP: Operator with 50% interest
Vietnam Oil and Gas Group: 50% interest
Contractors:
Aker Solutions: Supply undersea equipment
Aker Engineering: Designed FPU
FMC Technologies: Subsea trees, subsea wellhead systems and other services
J. Ray McDermott: SURF contract
Technical Services Corporation: Install subsea equipment connecting WPH-DH2 with FPU-DH1
Vietsovpetro: Build and transport the WPH-DH2 platform