The Champion Oil and Gas Field is located 40km north-west of Bandar Seri Begawan, at a water depth of approximately 30m in the South China Sea. It was discovered in 1970 by drilling the Champion-1 well and currently has more than 300 wells, drilled by 40 different platforms.
The offshore field is owned and operated by Brunei Shell Petroleum Company (BSP), a company equally owned by the Government of Brunei and Shell.
Aimed at increasing oil recovery from the field, the multi-phased Champion WaterFlood Project is currently in progress.
Details of Champion-7 complex
Construction of the Champion-7 complex started in 1980 and was completed in 1983. Providing operation control for the field, it is equipped with living quarters, gaslift and compression facilities, as well as water treatment and injection facilities.
“Aimed at increasing oil recovery from the field, the multi-phased Champion WaterFlood Project is currently in progress.”
As part of an expansion, Siemens installed a new 1,000t power generation module featuring two gas turbine generator units, ancillary facilities, a control system and a dedicated electrical system were installed on the Champion-7 Exploration Platform in July 2013.
A fuel gas conditioning skid (FGCS) system and an emergency diesel generator (EDG) were also installed on the new Champion-7 Living Quarters (CPNQ-7) platform in the same year.
Champion WaterFlood Project details
First oil from the Waterflood Project was produced in 2012. The A1 phase of the project involved the drilling of 20 wells including both water injection and production wells.
The project is now in the A2 phase, which involves the drilling of 22 new water injection and producing wells. It also involves the upgrade of certain existing platforms, and the installation of a new water injection pipeline and two subsea composite cables to provide power and fibre-optics.
The upgrade of the drilling platform CPDP 37 was completed in early 2013, which enabled first oil production from the A2 phase in May 2013. The detailed design for the DP33 and DP31 platforms was also completed that year. The fabrication, loadout and installation of two 100t integrated modular skids on the DP33 platform has been completed and similar skids will be installed on the DP31 platform, and two smaller electrical and instrumentation skids will be installed on both the platforms.
The CPPP01, CPRP01, CPDP33, CPPP04, CPRP04 and CPDP31 platforms will be demolished and reconstructed by 2015. A new separator for CPPP01 and a new vent knockout drum for CPRP01 were successfully installed in 2013.
A new water injection plant was also installed as part of the project in 2013. The facility is made up of four fine filters, three chemical injection skids, two coarse filters, one de-aerator tower, a vacuum pump skid and a hypochlorite skid. Three more lift pumps and three injection pumps are expected to subsequently complement the facility.
Liwan 3-1 Gas Field, South China Sea, China
The Liwan 3-1 gas field sits in licence block 29/26 in the South China Sea, 350km south-east of Hong Kong.
The installation of a new water injection flexible pipeline from CPRP04 to CPDP33 platforms was completed in August 2013, and the installation of a new composite bundled cable, comprised of a low-voltage power cable and fibre-optics, between CPDP33 and CPRP01 platforms was completed in late 2013.
Contractors involved with the WaterFlood project
The front-end engineering design studies for the field’s new living quarters platform was performed by WorleyParsons.
The new 241-men living quarters platform and a new helideck were fabricated by Apply Emtunga. A transformer rectifier unit for the platform was supplied by BIE Group, while two air handling units (AHU), two chillers, two condensers, ventilation fan skids and dampers for the heating, ventilation and cooling of the platform were supplied by SGL Systems International.
JDR supplied ten custom-designed umbilicals reaching an overall length of 13km, while 12 flexible flowlines with a total length of 19km were supplied by Technip. The two companies were subcontracted by Swiber Offshore Construction.
The subsea, umbilical, riser and flowline (SURF) installation works for the project were performed by Kreuz Subsea using Sea Trucks’ Jascon 25 DP3 pipelay construction vessel.
The corrosion protection and structural strengthening of the wells at Champion field were performed by Nautic Group and ITW Densit in 2012, with the latter using its proprietary Ducorit high strength grout. The S32750 Super Duplex pipe materials for the project were supplied by Inox Tech.
McDermott International has been awarded a three-year contract to transport and install additional pipelines, umbilicals and cables for the offshore field. The contract period will end in 2017.