Project Profile
Location: Block 9/13, 335 km northeast of Aberdeen, UK
Area: 12,000 acres
Water Depth: 107-122 m
Reserves: 129 mmboe (estimation for Callater and the Seagull prospects combined)
Discovery Year: 1972
Start-up Year: -
Beryl Field, the sixth largest oil field in the UK sector of the North Sea, is located about 335km northeast of Aberdeen on the United Kingdom continental shelf in Block 9/13. The project covers an area of around 12,000 acres in water depths ranging from 107m to 122 m.
The field was discovered in 1972 and named after Beryl Solomon, wife of Mobil Europe president Charles Solomon. Mobile North Sea announced new drilling activities at the field in September 2009. The co-venturers have agreed to provide the required funding. The field operator at the time received the block in 1971 and the 9/13-1 discovery well was drilled in 1972. The Beryl A platform was tied in 1975 and the other platform, Beryl B, was tied in 1983.
The K and Corona wells (in 2015 renamed as Callater) were the first exploratory prospects drilled by Apache in the Beryl area. Each discovery proves a separate geologic concept that helps to de-risk additional drilling locations. Apache estimates the K and Corona discoveries, combined with the success at Seagull, represent likely net recoverable reserves of 50 million to more than 70 million barrels of oil equivalent (MMboe). Future appraisal drilling will enable the company to further define the upside potential beyond 70 MMboe.
Callater Field (K and Corona discoveries)
- K Discovery (renamed in 2015 as Callater) – After the initial discovery with the 9/19B-18 well in June 2015, Apache successfully drilled two sidetracks into adjacent fault blocks in the Beryl area. In total, this discovery includes more than 1,500 feet of high-quality, oil-bearing sands within the Beryl, Linnhe, Nansen and Cormorant formations, across three distinct fault blocks.
Apache: 55%
Chrysaor: 45% (previously Shell)
- Corona Discovery (renamed in 2015 as Callater) - The 9/18a-39A Corona exploration well, also located in the Beryl area, tested Apache\'s first Tertiary-aged injectite prospect. The well was drilled to a true total vertical depth subsea (TVDSS) of 6,411 feet and logged 225 feet total vertical depth (TVD) net pay in excellent reservoir-quality sandstone.
Apache: 100%
Beryl ACN Development Well
Drilled from the Beryl Alpha platform, the ACN development well encountered 131 feet TVD net pay in the Nansen and 40 feet TVD net pay in the Eiriksson formations. The well was successfully completed in the Nansen and came online Oct. 8, 2015 at a test rate of 11,194 barrels of oil per day (Bpd) and 30.4 million cubic feet of natural gas per day (MMcfd).
Apache: 60.55%
Chrysaor: 39.45% (previously Shell)
Nevis Discovery
Nevis Central L4S Development Well – The L4S pilot well, also located in the Beryl area, was drilled to a TVDSS of 9,298 feet and logged 114 feet TVD net pay in the Triassic Lewis formation. The pilot was followed by a high-angle producer that yielded a 30-day initial production (IP) rate of 45 MMcfd and 2,166 Bpd. The well has been producing since early July 2015.
Apache: 60.55%
Chrysaor: 39.45% (previously Shell)
Seagull Discovery
An appraisal well was drilled about 50 miles (80 km) south of the Forties complex in Block 22/29c in the Seagull Discovery and confirmed 672 feet of net oil pay over a 1,092-foot column in Triassic-age sands. The well was flow tested with a facility-constrained rate of 8,700 bpd and 16 MMcfd with a very low pressure drawdown. Further appraisal work will continue following the recent acquisition of a multi-azimuth 3-D survey. Apache will assume operatorship of this license from Talisman Sinopec Energy UK Limited subject to necessary approvals.
Apache: 35%
Talisman Sinopec Energy: 50% (subject to approvals)
JAPEX UK E&P: 15%
Operators:
Apache: Operator with 60.56% interest
Chrysaor (previously Enterprise Oil Limited, subsidiary of Shell): 39.44% interest
Contractors:
DNV GL: verification services to Apache, including risk-based verification
Entier Limited: Provide catering and facilities management services
Flexlife: On-going Integrity Management
JP Kenny: Subsea engineering services
NEL: Turbine metre calibration
Petrofac: Supply onshore engineering as well as onshore and offshore construction
Bilfinger Salamis UK (part of Bilfinger Group): Bilfinger Salamis UK from its head office in Aberdeen, has been awarded the contract from Apache. The contract with Apache is a 3 year extension, with 2x 1 year options, and encompasses the Beryl A and Beryl B assets. The company, part of Bilfinger\'s Oil and Gas division, will be handling extensive inspection and maintenance activities. The services to be provided include offshore inspection enactment including conventional and advanced NDT; scaffolding access; rope access, coating; insulation; specialist cleaning; asbestos work; norm removal, and passive fire protection.
SEA: Subsea distribution unit supply contract. Under the agreement, the company’s subsidiary J+S will provide subsea distribution units and associated equipment and services for Ness Nevis project. Apache is currently undertaking a development program to upgrade the subsea controls architecture in preparation for new wells at the Beryl Field area. These subsea units will provide the power, communications and hydraulics infrastructure for the well developments.
Harkand: Contract provide project management and engineering services and deploy its personnel and one of its dive support vessels (the Harkand Da Vinci or Harkand Atlantis) to install new subsea equipment. The scope of work has been called off against the master service agreement (MSA) the IRM firm signed with the operator in 2014. (March, 2016)
- Subsea inspection, repair and maintenance contract
Subsea 7: Awarded an EPIC contract by Apache North Sea. The contract work scope covers the project management, engineering, procurement, construction and installation of a 4km, 45\" Pipeline Bundle system consisting of production lines, and power and supply services. It also includes the installation of a 13km electro-control umbilical, associated structures, field testing and pre-commissioning works. Offshore activities are planned for the first quarter 2017. (April, 2016)
Proserv: a subsea control system and associated topside and subsea interface equipment for use on the Callater wells. (May, 2016)
TWMA: to provide a fully integrated waste management solution, the one year contract will utilise the TCC RotoMill® for offshore processing and EfficientC® for cuttings transfer and distribution. (July, 2016)
Wood Group: master service agreement (MSA) contract with Apache (July, 2016)
- continue to deliver subsea engineering and consultancy services and detailed engineering for future subsea developments across its entire North Sea portfolio
- the contract includes two one-year extension options
Xodus Group: A contract to deliver subsea engineering services (Jan, 2017)