Rig: Ocean America

Name Ocean America
Owner Diamond Offshore Drilling
Manager Diamond Offshore Drilling
Rig Type Semisub
Sub Type Deepwater Floater
Jackup Type --
Max Water Depth (ft) 5000
Max Drill Depth (ft) 30000
Dimensions (ft) 401 x 233 x 142
Leg Length (ft) --
Competitive Yes

Current Location

Country Malaysia
Region South East Asia

Drilling Equipment

Drawworks Type Continental Emsco C3 Type II
Drawworks HP 3500
Mud Pumps Type Continental Emsco FB-1600 Triplex
Top Drive National Oilwell Varco TDS-4S
Hookload Capacity (lbs) 1400000

Rig Construction Details

Rig Design Odeco
Rig Model Ocean Odyssey
Year Built 1988
Country of Build South Korea
Yard Name Ulsan Shipyard
Group Yard Name Hyundai Heavy Industries (HHI)

Rig Contract Details

Operating Status Cold Stacked
Operator --

News

11 Aug 2015

Quadrant Energy comes up dry at Levitt-1

Karoon Gas Australia Ltd (“Karoon”) announced that as of 19:30 AWST on 8th August 2015, the Levitt-1 exploration well in WA-482-P Carnarvon Basin, off- shore Western Australia reached a final total depth of 4,929 mRT. No hydrocarbons shows were noted while drilling and petrophysical analysis of LWD data indicates the good quality reservoir of the Legendre and North Rankin formations to be water bearing at this location. Since the June 2015 Quarterly Report, announced 31st July 2015, the 9-5/8” casing was run and cemented in place. The 8-1/2” hole section was then drilled 504 metres from 4,425 mRT to TD. A wireline logging program is now underway. Once the wireline logging program is complete, the well will be plugged and abandoned, completing the current exploration drilling program in WA-482-P. Karoon has a 50% equity interest in WA-482-P and is carried for 90% of the cost of the well. Joint venture partner, and operator Quadrant Energy Australia Ltd has the remaining 50% interest. The net cost to Karoon is expected to remain within the USD5 million budget.

20 Jul 2015

Karoon releases Levitt-1 update

Karoon Gas Australia Ltd (“Karoon”) is pleased to announce that the Levitt-1 exploration well in WA-482-P Carnarvon Basin, offshore Western Australia was drilling ahead in the 12-1/4” hole section at a depth of 2,918 mRT. Since the 6th July 2015 Progress Report No 1, the 17-1/2” hole section was drilled to a depth of 2,099 mRT where the 13-5/8” casing was run and cemented in place at 2,094 mRT. Blowout Preventer installation and testing was then completed, the casing shoe drilled out and drilling ahead commenced in the 12-1/4” hole section. The Ocean America semi-submersible drilling rig is being used to drill the well which is targeting a net unrisked prospective resource best estimate of 110mmbbls (gross 220mmbbls) . Total depth is expected to be reached during early August. Levitt-1 is designed to test the presence of a working petroleum system generating from the Wigmore sub-basin.

6 Jul 2015

Levitt-1 well spudded in Australia

Karoon Gas Australia Ltd (“Karoon”) is pleased to announce the commencement of the high impact Levitt-1 exploration well in WA-482-P Carnarvon Basin, off-shore Western Australia. Levitt-1 spudded at 1230 AEST on 4th July 2015. The shallow hole section has been drilled 73 metres, in a water depth of 1,163 metres to the current depth of 1,262 mRT and the conductor casing has been set. Preparations are underway to commence drilling in the 17-1/2” hole section later today. The Ocean America semisubmersible drilling rig is being used to drill the well which is targeting a net unrisked prospective resource best estimate of 110mmbbls (gross 220mmbbls). Total depth is expected to be reached during early August.

6 Jul 2015

Global Maritime to provide mooring for 'Ocean America'

Global Maritime Deep Sea Mooring has been awarded a contract for the provision of mooring and rig positioning services for the Australian oil and gas company Quadrant energy. Under the contract with Quadrant Energy, Global Maritime Deep Sea Mooring will perform mooring and rig positioning services for both semi-submersible and jack-up operations on the Northwest Shelf, Australia. The contract will begin with Quadrant Energy’s use of the Ocean America for drilling operations on the Levitt-1 well.

30 Apr 2015

Chevron announces gas discovery in Australia

Chevron Australia Pty Ltd announced today further drilling success in the Greater Gorgon Area located in the Carnarvon Basin, a premier hydrocarbon basin offshore northwest Australia. The Isosceles-1 exploration discovery well encountered approximately 134 metres (440 feet) of net gas pay in the Triassic Mungaroo Sands in 968 metres of water (3,175 feet). The well fulfilled the second year work commitment in the exploration program. It is located in the WA-392-P permit area approximately 95 kilometres (60 miles) northwest of Barrow Island, off the coast of Western Australia. “This discovery is a continuation of our exploration success and further positions our company as a key supplier for future liquefied natural gas (LNG) demand in the Asia-Pacific region,” said Melody Meyer, president, Chevron Asia Pacific Exploration and Production Company. Roy Krzywosinski, managing director, Chevron Australia, said: “This discovery in the Greater Gorgon Area is an important addition to our portfolio and highlights the industry-leading results of our exploration program in Australia.” Chevron Australia is the operator of WA-392-P with a 50 percent interest while Shell Australia and Mobil Australia Resources each hold a 25 percent interest.

24 Mar 2015

Apache contracts 'Ocean America' to drill Levitt-1

The Levitt-1 exploration well is targeting an unrisked gross prospective resource best estimate of 220 mmbbls in the Legendre and North Rankin formations. The well is positioned to receive migrating hydrocarbons from the oil mature Early Jurassic source kitchen located in the central and eastern side of the permit.

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