With the largest drilling fleet worldwide, COSL operates and manages forty-eight jack-up rigs, fifteen semi-submersible rigs and five modular rigs, all which are equipped with conventional and the latest cyber drilling systems, reliable power generators, mud circulation systems, and a full range of processing, cleaning, and environmental ...

Our rig portfolio has a proven track record of having the most efficient and best performing rigs in the North Sea, with Energy Control Systems already delivering substantial CO2 and NOx reductions. The rigs are compact, with low PoB and operated by a highly competent and experienced team.

China Oilfield Services (COSL) is an oilfield services company. It is a majority owned subsidiary of Chinese state owned company CNOOC Group. [1] It also has a listed sister company in Hong Kong, CNOOC Limited.

COSLProspector is a semi-submersible drilling rig designed to operate in water depths up to 1500 meters and drilling depths to 7500 meters. This highly efficient and compact unit is designed for North Sea / Norwegian Sea and worldwide use in harsh environments.

COSL provides the integrated services for modular drilling rigs, including designing, constructing, installing, commissioning, maintaining and operating. COSL possesses and operates five modular rigs, all of which are equipped with international mainstream and high-performance drilling devices, with maximum drilling depth of 9000 m.

2024年1月24日 · Contractor's international expansion solidifies its position as a key player in the changing offshore drilling industry. Chinese offshore service giant China Oilfield Service Ltd (COSL) has...

2014年3月5日 · COSL7, a module rig, is designed to operate in well depths of 25,000 ft, equipped with winch capacity of 3,000 HP, as well as top-drive drilling volume of 750 tonnes. Once delivered to Mexico, COSL7 will provide drilling services to clients in the region for no less than 3 years, where service fees will be relatively higher as compared to ...

2025年3月17日 · China Oilfield Services' (COSL) semi-submersible drilling rig Nanhai 8 has begun its voyage to Brazil, where it will work on a multi-year drilling campaign for Petrobras. The rig was loaded...

2024年10月2日 · The company’s multi-well drilling campaign and well work-over program will continue unabated, as a rig from COSL Drilling Europe, an offshore drilling player, will now start activities at another well, which is part of this assignment on the UK Continental Shelf (UKCS).

2025年1月7日 · The COSL Innovator rig is now set to move to kick off drilling operations on EV02 on the Evelyn field. This potentially high-impact well is scheduled to achieve its first production in Q2 2025. Once COSL’s rig drills the well on the Evelyn field, it will finish the campaign with a well on the Belinda development .