Rig: Deepsea Atlantic

Name Deepsea Atlantic
Owner Odfjell Drilling
Manager Odfjell Drilling
Rig Type Semisub
Sub Type Ultradeep Water
Jackup Type --
Max Water Depth (ft) 10000
Max Drill Depth (ft) 37500
Dimensions (ft) 308.3 x 256 x 357
Leg Length (ft) --
Competitive Yes

Current Location

Country Norway
Region NWECS

Drilling Equipment

Drawworks Type --
Drawworks HP 9200
Mud Pumps Type National Oilwell Varco 14-P-220 Triplex
Top Drive National Oilwell Varco HPS-1000
Hookload Capacity (lbs) 2000000

Rig Construction Details

Rig Design Gotaverken
Rig Model GVA 7500 (Enhanced)
Year Built 2009
Country of Build South Korea
Yard Name Okpo Shipyard
Group Yard Name Daewoo Shipbuilding & Marine Engineering (DSME)

Rig Contract Details

Operating Status Operational
Operator Equinor

News

21 Dec 2016

Drilling permit for well 16/2-22 S in production licence 265

The Norwegian Petroleum Directorate has granted Statoil Petroleum AS a drilling permit for well 16/2-22 S, cf. Section 8 of the Resource Management Regulations. Well 16/2-22 S will be drilled from the Deepsea Atlantic drilling facility in position 58°55’33.5’’ north and 2°24’33.2’’ east in a northwest extension of the Johan Sverdrup field in the central North Sea. The drilling programme for well 16/2-22 S concerns the drilling of an appraisal well on Johan Sverdrup in production licence 265. Statoil Petroleum AS is the operator with 40 per cent and the other licensees are Petoro AS with 30 per cent, Aker BP ASA with 20 per cent and Lundin Norway AS with 10 per cent. The area in this licence consists of part of block 16/2. The well will be drilled about 2 kilometres northwest of the 16/2-9 S well in the Tonjer West segment on Johan Sverdrup. Production licence 265 was awarded in on 24 April 2001 (North Sea Awards 2000). This is the 16th exploration well to be drilled in the licence area and the 12th exploration well on or near Johan Sverdrup in licence 265. The permit is contingent upon the operator having secured all other permits and consents required by other authorities before the drilling starts.

1 Mar 2016

Production drilling started on Johan Sverdrup

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. “The Deepsea Atlantic drilling rig is currently predrilling the first production well for the first phase of the Johan Sverdrup development. This is a central operation in a complex Johan Sverdrup puzzle. Predrilling 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 predrilling template that was installed on the field in the summer of 2015. A total of eight wells will be drilled through the predrilling template, before the rig is relocating to drill injection wells on three locations on the field. 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 predrilled wells will be hooked up from the predrilling 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.

1 Mar 2016

Production drilling started on Johan Sverdrup

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. “The Deepsea Atlantic drilling rig is currently predrilling the first production well for the first phase of the Johan Sverdrup development. This is a central operation in a complex Johan Sverdrup puzzle. Predrilling 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 predrilling template that was installed on the field in the summer of 2015. A total of eight wells will be drilled through the predrilling template, before the rig is relocating to drill injection wells on three locations on the field. 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 predrilled wells will be hooked up from the predrilling 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.

15 Jun 2015

Statoil contracts Odfjell Drilling for Johan Sverdrup development

Odfjell Drilling Ltd. (“Odfjell”) has announced that the company has been awarded two contracts related to the drilling services for the Johan Sverdrup field in Norway. The first contract is a three year contract for the Deepsea Atlantic semisub which is scheduled to begin in March 2016. The firm contract period is for three years with a value of USD330 million and comes with 6x6 potential option periods. The second contract is related to the operation of platform drilling services on-board the Johan Sverdrup drilling platform and this contract is over a four year period.

20 May 2015

PSA approves drilling of two production wells at Gullfaks Sør

Statoil has received consent from the Petroleum Safery Authority (“PSA”) in Norway to use the Deepsea Atlantic to drill two production wells at Gullfaks Sør. Statoil is the operator for Gullfaks Sør, located in the Tampen area in the northern part of the North Sea, south of the Gullfaks field. Gullfaks Sør has been developed using subsea well templates tied back to Gullfaks A and C by underwater pipelines. Production from the field began in 1998. Statoil intends to drill two production wells from a new well template on the Rimfaksdalen gas discovery. In addition, a well is to be drilled next to the well template to investigate if there is shallow gas nearby. This well will be plugged when the result is in. Water depth at the site is 137 metres.

25 Jul 2014

'Deepsea Atlantic' to plug well on Gullfaks South

Statoil has received consent to use ‘Deepsea Atlantic’ for permanent plugging of well 34/10-52A/B at Gullfaks Sør. Gullfaks Sør lies due south of Gullfaks in the northern part of the North Sea. The field has been developed using a total of 12 subsea templates tied back to the Gullfaks A and Gullfaks C facilities. Expected start-up of the operation is mid-August 2014, with a duration of approx. 16 days. ‘Deepsea Atlantic’ is a drilling facility of the MODU GVA 7500 type and is operated by Odfjell Drilling AS. The facility was completed in 2009, is registered in Norway and is classified by DNV.

21 Apr 2014

'Deepsea Atlantic' resumes drilling activity

Odfjell Drilling's sixth-generation semisubmersible drilling rig, ‘Deepsea Atlantic’, resumed drilling operations for Statoil on the Gullfaks field late evening on 20 April 2014 after an efficient and successful yard stay. The five year special periodic survey and the planned modifications were executed in 25 days, five days ahead of the scheduled 30 days and within budget of US$55 million. The ‘Deepsea Atlantic’ underwent a full five year special periodic survey in addition to the following modifications; change of topdrive, change of two thrusters, change of N-line (a part of the compensation system for BOP/ Riser) and a change of valves under sea level. The total scope of work has been carried out according to the plan and requirements without any injuries to personnel or major incidents.

10 Feb 2011

Well incident on Deepsea Atlantic last night

At 03.25 on Thursday morning a well incident was detected on the exploration rig Deepsea Atlantic. The incident was reported to the Petroleum Safety Authority Norway. Statoil will closely examine the incident and is dispatching its own personnel, and personnel from drilling operator Odfjell Drilling, to conduct investigations. The team will also determine the final classification of the incident. The incident led to the crew being mustered on board in accordance with regulations. Normalisation efforts on the rig commenced a half-hour later and the situation was quickly clarified. Work on the well has now been resumed. Deepsea Atlantic is exploring for Statoil close to the Gullfaks South field, where it is about to complete operations in connection with the gas and condensate discovery in well 34/10-53. This constitutes an independent exploration prospect unconnected to the main reservoir on the Gullfaks field. The well has been closed for seven days owing to bad weather conditions on the field. Normal procedures are followed after such an incident to ascertain any possible seepage in the well. When the blow-out preventer (BOP) was opened after the closure and mud circulated, gas was registered in the mud processing unit on the platform. The well control system was then immediately closed down in line with procedures. The gas in the well was circulated in a controlled manner and the second well barrier was thereby re-established. The well was drilled using conventional drilling technology in an area where there are not the same demanding reservoir and pressure conditions as on the main Gullfaks field. Pressure conditions during this drilling operation were in accordance with the calculations made in advance.

9 Feb 2011

Discovery close to Gullfaks

Statoil has found gas and condensate around two kilometres west of the Gullfaks South field in the middle sector of the North Sea. The size of the discovery is estmated at between 19 and 75 million barrels of recoverable oil equivalent. Plans call for tie-back of the discovery to existing infrastructure in the Gullfaks South area. “The discovery by Gullfaks confirms once again that infrastructure-led exploration is important and leads to finds with high profitability that can quickly come on stream,” says Gro Gunleiksrud Haatvedt, senior vice president for exploration on the Norwegian continental shelf (NCS). The discovery was made in the Rimfaks valley where drilling of well 34/10-53 S confirmed a column of around 300 metres in good-quality reservoir rocks. Gas was found in the Brent group while no hydrocarbons were discovered in the Statfjord group. The well was drilled to a vertical depth of 3,847 metres below sea level, and was concluded in the Lower Jurassic rocks of the Statfjord group. Water depth in the area is 136 metres. “We regard the area around Gullfaks South to be prospective and the find confirms our faith in the area,” says Haatvedt. “Even if the volumes are modest compared to the large discoveries previously made on the NCS, discoveries of this type are important in order to maximise the potential on the NCS. They help extend the lifetime of the installations.” The well has not been formation tested, but further data acquisition and sampling are being made to determine the hydrocarbon system and estimate contacts. The well was drilled by the Deepsea Atlantic drilling rig. After completing the data acquisition and permanently plugging the well the rig is to drill a sidetrack well to Opal, which is a prospect in the Middle Jurassic reservoir rocks (Brent group) located west of the Rimfaks valley in production licence 050B. The licensees of PL050 and PL050B are Statoil (operator, 70%) and Petoro (30%).

13 Apr 2007

New rig secured

Statoil has today, 13 April, signed an agreement with Odfjell Invest AS for hire of the sixth-generation Deepsea Atlantic rig. The rig will be used for production and exploration drilling at the Statoil-operated North Sea Gullfaks field. Odfjell Invest is building the rig at the Daewoo Shipbuilding and Marine Engineering yard in South Korea. It will be delivered in the first half of 2009. "Consideration towards safeguarding the natural and working environment on the rig has been decisive for this contract award," says Terje Overvik, executive vice president for Exploration & Production Norway (EPN). "The rig will contribute to ensuring safe and effective operations at the Gullfaks field." He adds that the procurement is an important contribution to fulfilling the aggressive production targets Statoil has set for the Tampen area of the North Sea. Anders Opedal, vice president for procurements in the drilling and well technology business unit in Technology and Projects (T&P), is pleased that Statoil has secured essential future rig capacity in a tight market. "With the signing of this contract, Statoil is inviting Odfjell to be part of a renewal of the ageing rig fleet on the Norwegian continental shelf," says Mr Opedal. Statoil has secured flexibility with regard to the length of the contract which runs for four or five years, with an additional two two-year options. Statoil must decide on the final length of contract by July 2008.

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