Block B5/27, Gulf of Thailand
14,000 barrels a day
The Jasmine offshore oilfield is located within block B5/27, at a water depth of approximately 60m. The block covers an area of approximately 1,931km² in the Gulf of Thailand.
The oilfield is wholly owned and operated by Mubadala Petroleum, which received the ownership rights to the field through the acquisition of Pearl Energy (Pearl) from Aabar Energy in May 2008.
Production from the Gulf of Thailand oilfield started in June 2005 and, as of June 2015, cumulative crude oil production from the field was 55 million barrels, while the field’s daily crude oil production capacity currently stands at approximately 14,000 barrels.
Geology of the Block B5/27 oilfield
The oil reserves within the reservoirs, situated approximately between 790m and 1,600m below sea level, are hosted by Oligocene to Miocene lacustrine and fluvial sandstones.
Jasmine oilfield development details
The field development activities primarily involved the installation of the FPF-003 floating production, storage and offloading (FPSO) vessel, construction and installation of the production platforms, installation of 20.63km-long pipelines interconnecting the platforms and the FPSO, and drilling of the production and water injection wells.
The field’s FPSO also serves as the host platform for the neighbouring Ban Yen field, which started production in 2008. The Jasmine and Ban Yen fields are equipped with six wellhead production platforms.
First oil from the field was produced by the Jasmine A production platform in 2005, followed by the Jasmine B and C platforms in 2007, and the Jasmine B2, D and Ban Yen A platforms in 2008.
The crude oil produced from the two fields is conveyed to the local market by shuttle tankers.
As of June 2015, a total of 99 production wells, including 13 water disposal wells and two water injection wells, were drilled at the Jasmine and Ban Yen fields.
FPF-003 FPSO details
The FPF-003 FPSO (formerly Jasmine Venture MV7) was converted from a tanker. It was earlier owned by Modec and deployed at Nexen’s Buffalo field. Modec further deployed the FPSO at the Jasmine field and operated it from 2005 to 2011. The facility is currently operated and maintained by Petrofac in collaboration with PetroFirst Infrastructure.
The facility is moored with an external turret mooring system. The latest upgrade to the FPSO, performed in 2014, involved the replacement of the mooring wires and the installation of a new 8in oil production riser.
The FPF-003 FPSO has a total storage capacity of 800,000 barrels, an oil processing capacity of 20,000bpd, a gas production capacity of eight million standard cubic feet a day (mmscfd), and a water production capacity of 30,000bpd.
Contractors involved with the Jasmine oilfield
Six exploratory wells within block B5/27 were drilled deploying Ensco Oceanic’s Ensco 107 jack-up drilling rig.
The turret mooring system for the FPSO was supplied by Sofec. Cuel constructed and installed the Jasmine B and C platforms, whereas Worley Parsons provided engineering and consultancy services during the development of the two platforms.
Cummins Power Generation supplied six C1500 D6 gensets, rated at 1,122kW, to power the Jasmine B and C platforms. The gensets are powered by KTA50G9 engines.