This morning, at Dalian Shipbuilding Industry Group Co., Ltd., China's first 400-foot jack-up drilling platform, "Offshore Oil 941," was officially handed over by China National Offshore Oilfield Services Co., Ltd., China Shipbuilding Heavy Industry International Trading Co., Ltd., and Dalian Shipbuilding Industry Group. The handover ceremony was held with great fanfare, marking a significant milestone in China’s offshore oil industry.
The JU2000 drilling platform is the largest in scale, most automated, and capable of operating at the deepest water depth among domestic platforms. Its construction represents a major breakthrough under the national "Eleventh Five-Year Plan" for large-scale offshore oil equipment development. This achievement plays a crucial role in securing China's offshore oil resources and supporting the country's energy security strategy.
Deep-sea oil operations have become a key area for the offshore industry. For many years, China's limited exploration and development technology restricted offshore oil production to shallow waters. Currently, the deepest water depth for existing offshore platforms in China is only 80 meters. As China shifts its focus from offshore to deep-sea oil and gas resources, the demand for advanced offshore equipment has been growing rapidly.
In March 2004, Dalian Shipbuilding Heavy Industries signed a contract with CNOOC for two 400-foot drilling platforms. Compared to similar platforms worldwide, the Offshore Oil 941 features full automatic control, a 75-foot cantilever beam, and the ability to drill over 30 wells simultaneously. It can operate at a rated water depth of 400 feet and reach a drilling depth of 122 meters. To handle harsh sea conditions, the platform required high-quality materials, advanced welding techniques, and precise engineering.
Dalian Shipbuilding Heavy Industry trained over 100 welders with 6GR qualifications and successfully addressed critical technical challenges such as pile legs, central control systems, and mud management. The 167-meter pile leg was assembled using a lifting system with over 1,700 parts, demanding extremely high precision. A dedicated R&D team was formed, and strict quality control measures were implemented to ensure both quality and timely completion.
In recent years, Dalian Shipbuilding Industry Group has focused on expanding its marine engineering business while strengthening its shipbuilding division. It has built various marine modules, FPSOs, inspection vessels, and specialized drilling platforms for both domestic and international clients. These projects have earned trust and recognition from global partners.
It is reported that this year, marine engineering production will account for about 30% of the company’s total value. Currently, Dalian Shipbuilding Heavy Industry has four contracts for the same type of drilling platform. Notably, the two platforms built for a U.S. company (NOBLE) were constructed as the general contractor, marking the first time a Chinese shipyard has taken on such a role internationally.
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