Built by Dalian Shipbuilding Industry Group Co., Ltd., the first domestic drilling platform with a depth of more than 100 meters, “Offshore Oil 941â€, won the honor of Chinese shipbuilders in the South China Sea with excellent performance. Since the operation of the 11-1 oilfield in Weizhou, Beibu Gulf on September 11, 2006, “Offshore Oil 941†has successfully produced 10 high-yield oil and gas wells, of which 2 completed production wells with a total depth of 17,000 meters.
Before "Ocean Oil 941", China did not have a drilling platform with a water depth exceeding 100 meters. In April 2003, CNOOC's 400-foot self-elevating drilling rig project was approved. Dalian Shipbuilding Heavy Industry Co., Ltd. undertook the 400-foot self-lifting cantilever type with the most advanced structure, the most sophisticated drilling equipment, the most intelligent operation and the highest degree of automation. Construction of the rig.
After more than a year of intense construction, “Offshore Oil 941†was built on May 31, 2006. It is the third drilling platform of the same type in the world. It is also the first in China with a water depth of 122 meters and a drilling depth of 9145 meters. The drilling platform of 50 wells can be located at one time within the scope of operation. "Offshore Oil 941" towed away from Dalian on June 26, and in the past three months, it has crossed the Bohai Sea, the Yellow Sea, the East China Sea, the Taiwan Strait, and finally reached the Beizhou Bay Oilfield operation area.
On September 11, 2006, after the official launch of “Offshore Oil 941â€, the first well was seen to see the good color of the oil. Even more impressive is its high-tech performance. The platform equipment manager Luo Youan said that more than three months of offshore operations indicate that "Offshore Oil 941" is the premier drilling equipment, fully meeting the design performance requirements. For the first time in the world, the rig's full-conversion drive technology and the first drilling platform with high-temperature and high-pressure well drilling capability in China can not only fully meet the needs of deep-sea operations, but also allow the drilling workers to completely bid farewell to a series of heavy operations such as hand-held brakes. The entire drilling operation has been fully automated and intelligent, and the drilling efficiency and safety factor have been greatly improved compared with the previous manual operation.
Yuan Guangyu, general manager of China Oilfield Services Co., Ltd., commented that the completion and commissioning of “Offshore Oil 941†is of great significance for upgrading the level of deep-sea oil equipment in China and expanding the area of ​​deep-sea operations. Unlike previous offshore projects, Offshore Oil 941 meets the requirements of China Classification Society (CCS) and American Bureau of Shipping (ABS). He Rongji, general manager of ABS China, commented on “Offshore Oil 941â€. Although Dalian Shipbuilding Heavy Industry was the first to build such a high-tech drilling platform, the entire construction and equipment installation and commissioning reached the world-class level.
Ocean engineering has now become an important part of Dalian Shipbuilding Heavy Industry's product structure. In addition to the five 400-foot self-lifting cantilever drilling platforms, the company also undertakes large-scale floating deepwater drilling platforms, FPSO and other marine engineering products, including the second type of drilling platform “Offshore Oil 942†built by CNOOC. Handed over in early 2008.
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