People's Daily Online, Nanhai, February 5 (Reporter Du Yanfei) On February 4th, the South China Sea Western Petroleum Administration under CNOOC successfully completed the test operation of the ultra-high temperature and high pressure exploration well-Ledong 10-2-1 well in the South China Sea. The prospects for reserves are good. The drilling operation is located in the Yinggehai Basin in the northern part of the South China Sea, 115 kilometers southwest of Sanya City, Hainan Province. The temperature of the well is close to 200 degrees Celsius, the pressure coefficient is 2.28, and the bottom hole pressure is close to 1000 atmospheres. It belongs to ultra-high temperature and high pressure and is operated by the “Offshore Oil 944†jack-up drilling platform. The successful drilling of the well further validates the effectiveness and advancement of the key technologies of China's offshore ultra-high temperature and high-pressure drilling and completion series, making China's offshore high-temperature and high-pressure drilling and completion technology system among the world's forefront, which will explore the deepening of the South China Sea. It is of great significance to promote oil and gas and promote the construction of the Wanhai atmospheric zone system in the South China Sea. 
High-temperature and high-pressure well drilling and completion work site CNOOC supply map to overcome the high-temperature and high-pressure world-class problem "big furnace" in the "air dragon" China's South China Sea is located at the intersection of Europe, Asia, the Pacific and India and Australia, with the United States and Mexico Bay, the British North Sea and the world's three seas on the high temperature and high pressure sea area. Li Zhong, chief engineer of the CNOOC South China Sea Western Petroleum Administration, said that compared with the other two regions, the temperature and pressure in the South China Sea are higher: the highest temperature of the formation is 249 degrees Celsius; the pressure coefficient is 2.38, which is equivalent to the weight pressure of 12.5 million tons. In an area of ​​1 square meter, the formation is high in carbon dioxide and is a veritable “big furnaceâ€. According to the international oil and gas industry standards, the temperature indicators of 150 ° C, 175 ° C, 200 ° C, 260 ° C and pressure indicators of 69 MPa, 103 MPa, 138 MPa, 207 MPa correspond to four intervals, of which 175 ° C to 200 °C, 103 MPa to 138 MPa is an ultra-high temperature and high pressure range. It was previously recognized as a restricted area for oil and gas exploration and development in the world. But at the same time it is also a "treasure bowl" of oil and gas. The Ministry of Land and Resources' "National Oil and Gas Resources Dynamic Evaluation" data shows that the high temperature and high pressure region of the South China Sea contains nearly 15 trillion cubic meters of natural gas, accounting for about one-third of the total resources of the South China Sea.
High-temperature and high-pressure well drilling and completion work site CNOOC supply map to overcome the high-temperature and high-pressure world-class problem "big furnace" in the "air dragon" China's South China Sea is located at the intersection of Europe, Asia, the Pacific and India and Australia, with the United States and Mexico Bay, the British North Sea and the world's three seas on the high temperature and high pressure sea area. Li Zhong, chief engineer of the CNOOC South China Sea Western Petroleum Administration, said that compared with the other two regions, the temperature and pressure in the South China Sea are higher: the highest temperature of the formation is 249 degrees Celsius; the pressure coefficient is 2.38, which is equivalent to the weight pressure of 12.5 million tons. In an area of ​​1 square meter, the formation is high in carbon dioxide and is a veritable “big furnaceâ€. According to the international oil and gas industry standards, the temperature indicators of 150 ° C, 175 ° C, 200 ° C, 260 ° C and pressure indicators of 69 MPa, 103 MPa, 138 MPa, 207 MPa correspond to four intervals, of which 175 ° C to 200 °C, 103 MPa to 138 MPa is an ultra-high temperature and high pressure range. It was previously recognized as a restricted area for oil and gas exploration and development in the world. But at the same time it is also a "treasure bowl" of oil and gas. The Ministry of Land and Resources' "National Oil and Gas Resources Dynamic Evaluation" data shows that the high temperature and high pressure region of the South China Sea contains nearly 15 trillion cubic meters of natural gas, accounting for about one-third of the total resources of the South China Sea.Casting Polyurethane Prepolymer
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