[Norway] Draugen

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escveritas
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[Norway] Draugen

Unread post by escveritas »

Draugen was discovered in 1984 and the oil is found in the Garn and Rogn formations, of which the latter holds approximately 90% of the reserves. It has been producing since 1993.

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Development

Draugen is a field in the southern part of the Norwegian Sea. The water depth in the area is 250 metres. Draugen was discovered in 1984, and the plan for development and production (PDO) was approved in 1988. The field has been developed with a concrete fixed facility and integrated topside, and has both platform and subsea wells. Stabilised oil is stored in tanks at the base of the facility. Two pipelines connect the facility to a floating loading-buoy. Production started in 1993.

Reservoir

Draugen produces oil from two formations. The main reservoir is in sandstone of Late Jurassic age in the Rogn Formation. The western part of the field also produces from sandstone of Middle Jurassic age in the Garn Formation. The reservoirs lie at a depth of 1,600 metres. They are relatively homogeneous, with good reservoir quality.

Recovery

The field is produced by pressure maintenance from water injection and by aquifer support.

Transport

The oil is offloaded via a floating loading-buoy and exported by tankers. The associated gas is used for power generation. Excess associated gas is transported via the Åsgard Transport System (ÅTS) to the Kårstø terminal.

Status

One new well was drilled in 2015 and started production in late 2017. A new subsea pump contributes to increased production from the subsea wells. With declining oil production, sufficient volumes of associated gas will not be available for power generation, and alternative solutions are therefore being evaluated. Life time extension for the subsea structures is required to maintain the forecasted production profile.
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Re: [Norway] Draugen

Unread post by escveritas »

OKEA has July 1st awarded contracts for the Hasselmus project to Subsea Integration Alliance for the subsea pipelines and production systems and to Aker Solutions for the modifications of the Draugen platform.

Subsea Integration Alliance is a strategic global alliance between Subsea 7 and OneSubsea®, the subsea technologies, production and processing systems division of Schlumberger. The project work scope covers the engineering, procurement, construction, and installation (EPCI) of the subsea production systems (SPS) and subsea pipelines (SURF) for a single subsea well with direct tie-back to the Draugen production platform. The SURF scope comprises approximately nine kilometres of pipe-in-pipe flowline and associated structures in water depths of approximately 250 metres. Project management and engineering will commence immediately at Subsea 7’s offices in Stavanger, Norway. Fabrication of the pipelines will take place at Subsea 7’s spoolbase at Vigra, Norway and offshore operations will be executed in 2022 and 2023.

Kyrre Fatval, Project Director Hasselmus Development, says: “This award to Subsea Integration Alliance supports our strategy for early engagement and full subsea system delivery. Working in partnership with Subsea Integration Alliance supports an optimized project solution, early decision making and shortened delivery time, ultimately improving cost efficiency throughout the entire field lifecycle.”

Aker Solutions has been awarded a contract for modifications on the Draugen oil and gas platform for processing of gas from Hasselmus. The scope includes Engineering, Procurement, Construction, Installation and Commissioning (EPCIC) of new equipment. The work starts immediately and is scheduled to be completed in end of 2023.The award follows completion of the front-end engineering and design (FEED) work, and the scope will include hook up of new riser, a new inlet arrangement with electrical heater, new inlet scrubber, valve arrangement, revamp of gas export compressors and modifications to the condensate train.

The work is expected to involve around 190 work-years for Aker Solution own employees. For employees at Aker Solutions’ yard in Egersund, prefabrication for new systems to be installed at Draugen will involve 21 work-years. For Aker Solutions’ offices in Trondheim and Kristiansund, the engineering, procurement and project management will engage around 125 work-years, primarily for local employees. Aker Solutions’ work offshore to install the new systems will involve around 44 work-years.

Kyrre Fatval, Project Director Hasselmus Development, says: “The contract awarded to Aker Solutions follows completion of the front-end engineering and design (FEED) work done by Aker Solutions. Aker Solutions has a strong footprint in Kristiansund and Trondheim area and the job will be execute within the existing modification frame agreement between Aker Solutions and OKEA. Topside scope is planned executed with a minimum of interruption of the ongoing production on Draugen where safe and efficient revamp of the compressor train in the planned maintenance shut-down in April 2023 is a key success factor. ”

The Hasselmus discovery and the Draugen licence
The Hasselmus gas discovery is located on the western edge of the Trøndelag platform in the Norwegian Sea, 7 km northwest of the Draugen platform, in production licence 093. A single well (6407/9-9 T2) was drilled on the Hasselmus structure by A/S Norske Shell in 1999 which encountered a 16 meters gas column and a 6.8 meters oil column in high quality sands at a depth of 1,700 meters.

The Hasselmus project is expected to recover approximately 1.65 GSm3 (10.6 million barrels of oil equivalents) as fuel and export gas and will also make possible the restart of export of associated gas including NGL which is currently being injected into the reservoir.

The development concept is a single subsea well with direct tie-back to the Draugen platform. Production start-up is planned in Q4 2023 with plateau gas production of more than 4,400 barrels of oil equivalents per day gross. The breakeven price for the Hasselmus project is estimated to around USD 28/boe or 85 øre/Sm3. Expected total investment cost for the project is NOK 2.4 billion gross.

OKEA ASA (44.56% WI) is the operator of the Draugen licence and the Hasselmus project. Partners are Petoro AS (47.88% WI) and Neptune Energy Norge AS (7.56% WI).
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Re: [Norway] Draugen

Unread post by escveritas »

December 15, 2022
Aker Solutions signs LOI with OKEA for the Draugen Electrification Project

Aker Solutions has signed a Letter of Intent (LOI) with OKEA for the Draugen Electrification project, offshore Norway. The project is planned to involve major modifications of the existing platform to enable it to receive power from shore via an electrical power cable. This will replace the current power generation from gas turbines at the platform and reduce CO2 emissions by about 200,000 tonnes per year.

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Photo: OKEA

Aker Solutions expects the LOI to be converted to a full Engineering, Procurement, Construction and Installation (EPCI) contract during the first quarter of 2023. The company expects to book a substantial1 order intake related to this contract in the first quarter of 2023 in the Electrification, Maintenance and Modifications (EMM) segment, subject to regulatory approvals.

The award of the LOI follows completion of front-end engineering and design (FEED) work performed by Aker Solutions.

1Aker Solutions defines a substantial contract as between NOK 2.5 billion and NOK 4.0 billion.
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