At 00:00 on Tuesday 1 March the Deepsea Atlantic drilling rig commenced on the first of a total of 35 wells to be drilled in the first phase of the Johan Sverdrup field development.
Happiness onboard the Deepsea Atlantic drilling rig (Photo: Arne Reidar Mortensen/Statoil)
“The Deepsea Atlantic drilling rig is currently pre-drilling the first production well for the first phase of the Johan Sverdrup development. This is a central operation in a complex Johan Sverdrup puzzle. Pre-drilling allows the production capacity on the field to be utilised as efficiently as possible when Johan Sverdrup has come on stream late in 2019. This way, we maximize value from the field from day one,” says Kjetel Digre, senior vice president for the Johan Sverdrup project.
The rig is drilling the first production well through a pre-drilling template that was installed on the field in the summer of 2015. A total of eight wells will be drilled through the pre-drilling template, before the rig is relocating to drill injection wells on three locations on the field.
Deepsea Atlantic Drilling rig Image: Petro.no
In 2018 the permanent Johan Sverdrup drilling platform will be installed as the second of four platforms. The drilling platform is currently being constructed at Aibel’s yard in Haugesund, north of Stavanger, and in Thailand. When the drilling platform is installed and operational, the eight pre-drilled wells will be hooked up from the pre-drilling template. At this point Deepsea Atlantic will be drilling the injection wells providing reservoir pressure support to maintain high field production.
The operator Statoil, the rig owner Odfjell Drilling and the drilling service provider Baker Hughes have cooperated closely to ensure safe and cost-effective deliveries. The Johan Sverdrup project introduces integrated drilling services as a new concept, which means that Baker Hughes will provide the main deliveries together with Odfjell Drilling.
“Statoil and the drilling service providers have worked as an integrated team in planning the drilling operation. Deepsea Atlantic is a good rig and everything is set for a safe and cost-effective drilling operation on Johan Sverdrup. This is vital to ensure production start from the field at the end of 2019,” says Digre.
The contract for integrated drilling services worth NOK 1.5 billion was awarded to Baker Hughes on 6 July 2015. The contract for rig and drilling services on Johan Sverdrup, totalling more than NOK 4.35 billion, was awarded to Odfjell Drilling on 15 June 2015.
Contracts worth more than NOK 50 billion have been awarded by the Johan Sverdrup project. More than 70% of them have been awarded to suppliers with a Norwegian billing address.
Facts Johan Sverdrup
Recoverable resources are projected at between 1.4 and 2.4 billion barrels of oil equivalent in phase one.
The investment costs for phase one of the Johan Sverdrup development are estimated at some NOK 117 billion (2015 value).
The development concept for Johan Sverdrup phase 1 will consist of four installations, including a utility and accommodation platform, a processing platform, a drilling platform and a riser platform, in addition to three subsea templates for water injection.
The platforms will be bridge-linked. The project aims at a recovery rate of 70% for Johan Sverdrup.
The Johan Sverdrup partnership consists of Statoil (operator), Lundin Norway, Petoro, Det norske oljeselskap and Maersk Oil.
Overall main contracts at a value of more than NOK 27 billion and more than 45 equipment package contracts at a value of NOK 3.5 billion have been awarded to suppliers with Norwegian invoice addresses.