The
Ula Area

Aker BP considers the resource potential in the Ula area to be significant, from increased oil recovery, third party tie-ins, discoveries and exploration opportunities. The Oda field came on stream in 2019, which increased total production from the Ula area. The ambition is to further develop the Ula area and to extend the economic lifetime of the Ula hub.

UPDATED FOR AN EXTENDED LIFETIME

Start-up of the Oda field and gas lift on Tambar resulted in a significant increase in production throughput over Ula, reaching 53,000 barrels of oil equivalents per day towards the end of the year. In addition, the Ula D platform has un-dergone major modifications to facilitate the ongoing drilling campaign from a heavy-duty jack-up rig.

Ula acts as a third-party host for the subsea fields Oda and Blane. The Oda field, which is operated by Spirit Energy, start-ed production in March 2019, three months ahead of plan. The field is processed at Ula and Aker BP holds a 15 percent share in the license. Extensive modifications have been made to the inlet facilities previously used for Oselvar in order to receive and treat the Oda wellstream.

Gas from the Oda reservoir is purchased by the Ula license and is injected into the Ula reservoir to increase oil recovery from the field, in line with Aker BP’s strategy to maximize recovery.

During 2019, we demonstrated Aker BP’s commitment to revitalizing the Ula area. We started drilling again for the first time in many years, are making good progress on modernizing our obsolete power plant, and we have started work to understand what a future redevelopment of Ula might look like.

Richard Miller
VP Operations and Asset
Development Ula

GAS LIFT ON TAMBAR

Start-up of artificial gas lift on Tambar was another important milestone for the year. This increases oil recovery from the field and is expected to extend the production profile.

NEW DRILLING CAMPAIGN

The high activity on the field resulted in higher levels of man-ning than Ula has seen since the original installation in 1986, with over 300 people in the field. The Safe Scandinavia flotel, which had been providing additional temporary accommoda-tion, was demobilized in May.

Aker BP carried out extensive modifications to prepare for the arrival of the Maersk Integrator heavy duty jack-up rig for the infill drilling campaign. After 33 years of service, the original drilling derrick and substructure were successfully removed by the Saipem 7000 heavy lift vessel. Drilling commenced in July and future drilling will be done by jack-up rigs.

Production 2019

8.5
m b o e p d (net)

Production Efficiency

69 %
Production start: ULA 1986, TAMBAR 2001, TAMBAR EAST 2007, ODA 2019

IMPROVING TECHNICAL CONDITION

The strategy to improve the technical condition of the facilities and address obsolescence continues into 2020. One major modification project is the replacement of the entire power plant on Ula, using a piece small execution strategy. The first of three gas turbine power units has been completed.

SAILING SMARTER

Aker BP has established a new shared logistics supply concept in the southern North Sea to support Ula, Tambar, Valhall, Gyda and exploration drilling in the vicinity.

As the activity surged in 2019, smarter use of the vessel fleet has been achieved, instead of increasing the number of ves-sels. This was accomplished through improved schedules and routes to provide flexibility and capacity, and thereby reduce unit costs.

MATURING OPPORTUNITIES

Aker BP will continue to mature the King Lear discovery locat-ed south of Ula and considers that the area around King Lear has significant upside potential.

Aker BP is working diligently to mature scenarios to maximize the value of the Ula area and for further development of the Ula hub facilities.

Highlights from 2019

  • 19 March

    First oil from the Spirit Energy-operated Oda field, some three months ahead of plan

  • 7 Apri

    The original Ula drilling derrick was removed by the Saipem 7000 heavy lift vessel

  • 13 April

    Gas lift start-up on Tambar, to increase production from the wells and add reserves

  • 29May

    Start of the 2019 maintenance and modification turnaround

  • 18 July

    Drilling operations commence, starting with slot recov-ery of two well slots that will be reused for new wells

  • 30 August

    Spud the Kark HP/HT exploration well (PL 019C)

  • 1 October

    Completed upgrade of the Ula helicopter deck

  • 4 October

    Started drilling the first of Ula’s new wells, a water alternating gas (WAG) injector to the northern flank of the Ju-rassic reservoir

  • 14 December

    Reached a peak processing throughput of above 53,000 barrels at the Ula hub