Rig: Nan Hai Jiu Hao

Name Nan Hai Jiu Hao
Owner China Oilfield Services Limited (COSL)
Manager China Oilfield Services Limited (COSL)
Rig Type Semisub
Sub Type Deepwater Floater
Jackup Type --
Max Water Depth (ft) 5300
Max Drill Depth (ft) 25000
Dimensions (ft) 326 x 287 x 144
Leg Length (ft) --
Competitive Yes

Current Location

Country China (PRC)
Region East Asia

Drilling Equipment

Drawworks Type Continental Emsco C3 Type II
Drawworks HP 3000
Mud Pumps Type Continental Emsco FB-1600 Triplex
Top Drive National Oilwell Varco TDS-4
Hookload Capacity (lbs) 1500000

Rig Construction Details

Rig Design Gotaverken
Rig Model GVA 4500 Enhanced
Year Built 1988
Country of Build South Korea
Yard Name Okpo Shipyard
Group Yard Name Daewoo Shipbuilding & Marine Engineering (DSME)

Rig Contract Details

Operating Status Ready Stacked
Operator --


2 Jun 2016

Rosneft commences drilling in the Sea of Okhotsk

JV of Rosneft and Statoil ASA started drilling the exploration well in the Sea of Okhotsk. The signal to begin drilling was given by the Rosneft Chairman of the Management Board Igor Sechin during the work at the rig Nanhai-9. "Implementation of the offshore projects in upstream is one of the Company’s most important strategic goals, a contribution to the whole oil and gas industry. Rosneft is the country’s only company that continues the work on new projects offshore in accordance with its license obligations despite the complicated external environment. We are pleased to commence the key stage of project within the scope of the long-term cooperation with our partner – Statoil – the drilling of exploration wells in the Sea of Okhotsk" - Igor Sechin said. Well Ulberikanskaya-1 will be drilled at the prospect of the same name in Lisiansky license area one year ahead of the license obligations. The distance from the port of Magadan to the well is about 420 km. The second well of Rosneft and Statoil project will be also drilled during the 2016 season within Magadan-1 section in the Sea of Okhotsk. Semi-submersible rig Nanhai-9 was delivered by China Oilfield Services Limited (COSL) which signed a contract for drilling with the joint venture of Rosneft and Statoil in September 2015. The rig was transported through the South China Sea, the East China Sea, the Sea of Japan and the Sea of Okhotsk; to reach the point of drilling, the rig traveled a long way of more than 4600 nautical miles. Nanhai-9 was specially modified for the drilling project in the Sea of Okhotsk: in particular, a comprehensive preparation of the rig was implemented to enable its operation at low ambient temperatures, wind protection was installed on the perimeter of the drilling site, a range of services were held to ensure environmentally safe operations. The Sea of Okhotsk lies south of the Arctic zone boundary, the sea depth in both drilling sites is less than 150 m.

2 Sep 2015

COSL semisub hired to drill in Okhotsk Sea

Magadanmorneftegaz, Lisyanskmorneftegaz (joint ventures of Rosneft and Statoil) and China Oilfield Services Limited (“COSL”) have signed a contract to drill two exploration wells in 2016. The wells will be drilled in the Magadan-1 and Lisyansky areas of the Okhotsk Sea. COSL offered its semi-submersible drilling rig Nanhai-9 and won the tender based on a combined score of technical and economic parameters. The rig was positively evaluated by an audit for compliance with Russian and international requirements. Commenting on the signed document, Igor Sechin, Rosneft Chairman of the Management Board, said: "The agreements reached opens up new prospects for further cooperation between leaders of the oil and gas industry in Russia, Norway and China in the exploration of oil and gas resources."

7 Nov 2014

Nanhai Jiu Hao drills deepwater well

China Oilfield Services Limited (COSL) saw its semi-submersible drilling rig NH9 recently completed drilling operations for the first 1,000-meter deep water well. This achievement has made NH9 the second drilling rig included in the league of “1,000-meter-deep Drilling” after HYSY981. This success made in the inaugural drilling operation of NH9 has taken deep-water drilling operations of the Group to a new level with further refinements in deep-water drilling technologies and equipment portfolio. This establishes a firm footing for large-scale exploration and development activities in the future. NH9 is the deepest operation depth semi-submersible drilling rig put into operation by COSL in addition to HYSY981. It is a fourth-generation drilling rig with designed operation depth of up to 1,524 meters and the maximum drilling depth of 7,620 meters. Mr. Li Yong, CEO and President of COSL, said: “Levering efforts by the COSL’s team in establishing a deep-water drilling equipment portfolio, the Group seen its deep-water drilling capability enhance further. This helped COSL tap the escalating demand for deep-water operation in South China Sea. The Group will adhere to its positioning of establishing world-class capabilities to continue to increase investments in furthering its deep-water capabilities, research and development. This will help COSL move closer to his goal of becoming a top-notch oilfield services Group with cutting edge equipment, technologies and scientific management.

29 Oct 2013

'Nanhai IX' begins South China Sea operations for CNOOC

China Oilfield Services Limited (COSL) has announced that the drilling rig operator’s newly restored semisubmersible unit the ‘Nanhai IX’, has commenced operations for CNOOC Ltd in the South China Sea. The unit underwent 53 days of restorative maintenance in a Chinese shipyard after being moved to the country from Malaysia, following COSL’s purchase of the unit from Transocean in August 2013. The ‘Nanhai IX’ is capable of drilling in 5,300 feet of water down to a maximum depth of 25,000 feet and the addition of the unit to COSL’s fleet fits in with the operator’s current strategy of expanding the number of floating rigs it has for drilling operations in the South China Sea.

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