Mubadala spuds Rojana-A

Wednesday, June 25, 2014

Mubadala Petroleum began drilling operations on the Rojana-A exploration well in block G11/48 in the Gulf of Thailand, partner KrisEnergy Ltd. announced on 23 June 2014.

The company is drilling the Rojana-A well using Atwood Oceanics' Atwood Orca jackup rig. The program entails drilling Rojana-A to 4,828ft measured depth (-4,068ft total vertical depth subsea), testing a series of stacked sandstone reservoirs in the Miocene. Water depth at the Rojana-A well is 232ft (70.6m).

The Atwood Orca is a Pacific Class 400 jackup built in 2013 at the PPL Shipyard in Singapore. The unit is able to work in maximum 400ft water depth and capable of drilling to 30,000ft.

KrisEnergy said the Rojana-A is the first exploration well to be drilled in G11/48 since the exploration and appraisal programs in 2009 and 2010. The G11/48 block covers 3374sq km over the southern margin of the Pattani Basin and the northwest margin of the Malay Basin in water depths of up to 75m.

The block is also home to the Nong Yao oil discovery, which Mubadala Petroleum and its joint venture partners expect to bring into production by 1H 2015.

A final investment decision was reached on the Nong Yao development in August 2013. Nong Yao's initial development concept comprises 23 wells, a wellhead processing platform, and a minimum facility wellhead platform with the export of crude oil via a floating storage and offloading vessel. Production capacity will be up to 15,000bo/d and 30,000b/d of fluids.

In January, Mubadala Petroleum announced it had awarded Nippon Steel and Sumikin Engineering Co. Ltd. am engineering, procurement, construction, installation and commissioning contract for the Nong Yao development.

Mubadala Petroleum G11 (Thailand) Ltd operates the G11/48 license with 67.5% working interest. Its partners include KrisEnergy (22.5%) and Palang Sophon Ltd. (10%).

Image: Atwood Orca/Atwood Oceanics

Categories: Drilling Engineering Asia Rigs Jackup

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