Rig: Atwood Eagle

Name Atwood Eagle
Owner Ensco Plc
Manager Ensco Plc
Rig Type Semisub
Sub Type Deepwater Floater
Jackup Type --
Max Water Depth (ft) 5000
Max Drill Depth (ft) 25000
Dimensions (ft) 349 x 252 x 102
Leg Length (ft) --
Competitive Yes

Current Location

Country --
Region --

Drilling Equipment

Drawworks Type National Oilwell Varco ADS 30Q
Drawworks HP 3000
Mud Pumps Type National Oilwell Varco A-1700-PT Triplex
Top Drive National Oilwell Varco TDS-4H
Hookload Capacity (lbs) 1200000

Rig Construction Details

Rig Design Korkut
Rig Model New Era
Year Built 1982
Country of Build USA
Yard Name Alabama Shipyard
Group Yard Name Alabama Maritime Corporation

Rig Contract Details

Operating Status Retired
Operator

News

21 Mar 2016

Atwood Oceanics Announces Program Changes for Australia Rigs

Atwood Oceanics, Inc. (NYSE: ATW) announced today that its Australia subsidiary's drilling services contract with Woodside Energy Ltd ("Woodside") for the semisubmersible Atwood Eagle has been suspended by mutual agreement effective March 19, 2016 and the remaining term of 165 days has been transferred to the semisubmersible Atwood Osprey for Woodside's utilization upon completion of the Atwood Osprey's current drilling program. The material contractual terms and conditions, including dayrate, of the Woodside drilling services contract remain unchanged after this assignment to the Atwood Osprey. The Atwood Eagle will temporarily remain in Australia until plans are finalized for its mobilization to Singapore, where the rig will be available for hire.

20 Aug 2014

'Atwood Eagle' completing Phoenix South-1 well

Carnarvon Petroleum Limited (Carnarvon) is pleased to advise that the Phoenix South-1 well has reached a total depth of 4,595 metres measured depth (MD) after encountering the locker shale. The 'Atwood Eagle' is currently undertaking preparations to complete the well and leave it in a safe condition and it is anticipated to leave the well by the end of the month.

18 Aug 2014

Apache makes discovery at Phoenix South-1

Apache Corporation (Apache) today announced an oil discovery at the Phoenix South-1 well – the company’s first discovery in Australia’s offshore Canning Basin. Wireline and formation pressure tools have confirmed at least four discrete oil columns ranging in thickness between 85 and 151 feet (26 to 46 meters) in the Triassic Lower Keraudren formation, within an overall, sand-rich section between 13,648 and 14,763 feet below sea level (4,160 to 4,500 meters). Six light oil samples have been recovered from three intervals to date; permeability measurements from the sampled zones indicate a productive oil reservoir with preliminary estimates that there might be as much as 300 million barrels of oil in place.Evaluation of the formation penetrated in the Phoenix South-1 is under way, and final calculation of hydrocarbon pay will depend on additional analysis. The Phoenix South-1 well is located in permit WA-435-P, offshore western Australia, 110 miles (180 km) north of Port Hedland in 435 feet (133 meters) of water. Apache has a 40-percent interest and operatorship of WA-435-P and the adjacent permit WA-437-P; co-venturers are Carnarvon Petroleum (20 percent), Finder Exploration (20 percent) and JX Nippon (20 percent). Apache also has exercised its option to acquire 40-percent interest and operatorship of two additional adjacent permits (WA-436-P and WA-438-P) for a total position of more than 5 million acres (20,000 square kilometers). The area includes a number of large, undrilled structures, including the Roc prospect on WA-437-P, with potential to be significant additional oil accumulations. Further drilling and evaluation is planned for 2015.

11 Aug 2014

Logging begins at Phoenix South-1

Carnarvon Petroleum Limited (Carnarvon) is pleased to announce that the Phoenix South-1 well has drilled to a depth of 4,540 metres Measured Depth (MD). Drilling 40 metres below the 4,500 metres MD target was undertaken to enable logging tools to reach 4,500 metres. Apache is currently running wireline formation evaluation tools. These operations are expected to continue for a further five to seven days. Once these operations are complete the joint venture will make a decision whether to drill deeper.

29 Jul 2014

Apache strikes gas at Phoenix South-1

Carnarvon Petroleum Limited (Carnarvon) is pleased to advise that gas and indications of associated liquid hydrocarbons were observed in the Phoenix South-1 well prior to a drill bit failure, which has necessitated the drilling of a minor side-track around a small portion of the well bore. In the past two weeks Apache Energy, the Operator of the Phoenix South-1 well, had drilled to a depth of 4,321 metres Measured Depth (MD) and, as at 06:00 hours this morning, the well was preparing to side-track at around 4,000 metres MD to complete the drilling to the expected Total Depth (TD) of 4,500 metres. The primary target within the Early to Middle Triassic Lower Keraudren Formation sands was intersected as expected at approximate 4,160 metres MD, around 10 metres high to prognosis. Elevated gas readings were observed through this sand, with gas peaks being encountered from around 4,170 metres as the sands being drilled were cleaning up.

18 Jul 2014

Carnarvon releases Phoenix South-1 well update

Carnarvon Petroleum Limited (Carnarvon) is pleased to report that the Phoenix South-1 well has successfully set the 9 5/8” casing in the side-track well and is drilling ahead. As at 12:00 hours today the well was drilling ahead at approximately 3,750 meters MD in the final hole section. The primary targets for the Phoenix South-1 well are the interbedded sandstones, siltstones and claystones of the Middle Triassic Lower Karaudren Formation and Early to Middle Triassic Locker Shale. These sands are expected to be intersected while drilling this final hole section. The well is expected to take approximately three weeks to complete drilling. Following the completion of drilling, extensive wireline logging and both pressure and fluid sampling are planned. These operations will continue for a further week. Carnarvon will provide further updates as the well progresses.

8 Jul 2014

Phoenix South-1 Well Update

Carnarvon Petroleum Limited (Carnarvon) reports that the Phoenix South-1 well has commenced drilling operations in the side track wellbore. As at 06:00 hours on 7 July 2014 the well was drilling ahead at approximately 1,960m on the way to the 9 5/8” casing point of around 3,700m. As reported on 23rd June 2014, a new side-track wellbore section of the Phoenix South-1 well was required to be drilled below the 13 3/8” casing depth, due to a stuck 9 5/8” casing hangar seal assembly running tool (“casing tool”). In order to retrieve the stuck casing tool, the upper portion of the previously set 9 5/8” casing was cut and retrieved along with the casing tool. The original wellbore was plugged with cement and a new side-track wellbore commenced drilling operations on 5th July 2014. The new side-track wellbore is being drilled at a distance of around 30m from the original wellbore. The positioning and forward plans of the side-track wellbore does not compromise the evaluation of the Phoenix South-1 prospect. At the current time the operator expects drilling to reach its Total Depth (TD) around mid-August and complete well operations by the end of August. At the current time, the estimated additional cost to Carnarvon of the side-track operation is around AUSD6m, based on final costs exceeding the cost cap of USD70 million.

23 Jun 2014

Apace forced to drill sidetrack at Phoenix South-1

Carnarvon Petroleum Limited (Carnarvon) reports that a new sidetrack wellbore section of the Phoenix South-1 well is required to be drilled below the 13 3/8” casing depth, due to the 9 5/8” casing hanger seal assembly running tool (CHSART) (casing tool), becoming stuck and preventing forward drilling progress of the current wellbore. As reported on 13th June 2014, the Phoenix South-1 well had drilled to 3,706m depth and was in the process of setting the 9 5/8” diameter casing to support the hole, as per standard industry practice. After setting and cementing the casing in place, the casing tool was unable to be retrieved from the wellhead. Apache Energy (Apache) notified Carnarvon that despite several unsuccessful attempts to retrieve the casing tool, it remained stuck, and forward progress in the current wellbore was not possible. Apache has advised Carnarvon that it intends to cut and retrieve the casing from a point just below the 13 3/8” casing point to retrieve the stuck casing running tool. A new sidetrack wellbore will be drilled from this point down to the same depth (approximately 3,700m) as the initial hole and the 9 5/8” cement casing will be set, as per industry practice. The above mentioned operations are outside the scope of the original drilling plan, and Apache estimates that this procedure could add approximately 20 days to the expected drill schedule. The additional net cost to Carnarvon, if the total well costs exceed the farm-in cap, is anticipated to be around USD4 million for the respective time frames. Carnarvon has made provision for such eventualities and has the capacity to comfortably fund these additional costs, in the event the farm-in cap is exceeded. Carnarvon will provide further updates on the above drilling activities being undertaken by the ‘Atwood Eagle’ as the sidetrack progresses.

13 Jun 2014

Carnarvon released Phoenix South-1 update

Carnarvon Petroleum Limited (Carnarvon) is pleased to report that the drilling of the intermediate hole section at the Phoenix South-1 well was completed on schedule and is currently setting casing before drilling the final hole section. As at 06:00 hours this morning, the well had drilled to 3,706 m MD and was in the process of setting 9 5/8” casing in preparation to drill ahead in 8 ½” hole size. The primary target for the Phoenix South -1 well is the inter-bedded sandstones, siltstones and claystones of the Middle Triassic Lower Karaudren Formation and Early to Middle Triassic Locker Shale. These sands are expected to be intersected while drilling the final hole section. The Operator is expected to take around four days to run and set the 9 5/8” casing and then a further three weeks to complete drilling. Following the completion of drilling and in the event of hydrocarbons being intersected, extensive wireline logging and both pressure and fluid sampling are planned. These operations will continue for a further week. At the completion of the wireline logging program, the Joint Venture intends to plug and abandon the well in accordance with normal good oilfield practice as outlined previously by Carnarvon, including in the CEO Newsletter available on the Carnarvon web site.

4 Jun 2014

Phoenix South-1 shallow hole section complete

Carnarvon Petroleum Limited (Carnarvon) has announced that the Phoenix South-1 exploration well’s shallow hole section has been completed by the ‘Atwood Eagle’. The operator is now preparing to drill the intermediate section. As at 06:00 hours this morning the well had drilled to 1,502 m MD and was in the process of setting 13 3/8” casing in preparation to drill ahead in 12 ¼” hole size.

27 May 2014

'Atwood Eagle' spuds Phoenix South-1 in Australia

Carnarvon Petroleum Limited (Carnarvon) has announced that the ‘Atwood Eagle’ semi-submersible drilling rig has successfully spudded the Phoenix South-1 well within WA-435-P on the North West shelf of Western Australia. Spudding occurred on the 25th May 2014 and by 24:00 hours, the operator had drilled the conductor hole to 228.2m. Drilling is expected to take 60-70 days, which includes time for logging and testing. The Phoenix South-1 well is scheduled to reach a total depth of 4,500m, but could be extended to 5,000m depending on the presence of gas below 4,500m.

19 May 2014

'Atwood Eagle' mobilises to drill Phoenix South-1

Carnarvon Petroleum Limited (Carnarvon) is pleased to advise that the ‘Atwood Eagle’ semi-submersible drilling rig has been released from the previous location and is en route to the Phoenix South-1 well location within the WA-435-P exploration permit. The Company’s next scheduled announcement will occur after the Phoenix South-1 well has spudded, anticipated to be on or around the weekend of 24 - 25 May 2014. Apache Energy and JX Nippon are earning a 40% and 20% interest in the permit respectively through the drilling of the well down to 4,500 m.

13 May 2014

'Atwood Eagle' ready to mobilise to Phoenix South-1 well

Carnarvon Petroleum Limited (Carnarvon) is pleased to report that the operator of the Phoenix South-1 well, Apache Energy (Apache) has advised that the ‘Atwood Eagle’ drilling rig is expected to be mobilised to the Phoenix South-1 well location around Thursday 15th May. Drilling is expected to start approximately 5 days after the rig has commenced its mobilisation from the previous location. The Company’s next scheduled announcement will occur once the rig has commenced mobilisation.

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