The installation of the second phase comprehensive processing platform of "Deep Sea No. 1" was completed

The comprehensive processing platform of the second phase of the "Deep Sea No. 1" project consists of a lower jacket and an upper production facility, with a total height of approximately 136 meters and a total weight of over 14,000 tons. The total weight of the upper production facility completed this time is over 7,500 tons, and the projected area of ​​the deck is equivalent to the size of five standard basketball courts. The "base" of the jacket, which is over 100 meters high, has been installed in advance on the seabed at a water depth of nearly 90 meters, and driven 105 meters below the seabed through 12 steel piles, effectively ensuring that this "sea giant" can withstand strong typhoons. Stable as a mountain.

It is understood that hoisting is a common installation method for offshore oil and gas production platforms. It uses a "snatch" action similar to that of a weightlifter to lift a platform weighing thousands of tons on rough seas. Lift and install precisely to the designed location. Affected by complex factors such as ocean currents, swells, and wind, the construction process places high demands on the accuracy of design calculations, ship stability, and hoisting technology.

"During the construction period, the northeast monsoon prevailed, and the sea current speed was more than three times greater than that in normal sea areas. We invested in the largest domestic offshore oil and gas engineering crane ship 'Blue Whale 7500', using flow speed monitoring and early warning, Measures such as precise guidance and position limiting are used to overcome technical difficulties in hoisting in harsh sea conditions and ensure safe and high-quality completion of offshore hoisting," said the general contracting project manager of the second phase of the "Deep Sea No. 1" project of Offshore Oil Engineering.

According to reports, the "Shenhai No. 1" phase II comprehensive processing platform installed this time is a key facility for receiving and processing deepwater oil and gas. It and the Yacheng gas field production platform together form a "four-star" The "Lianzhu" offshore natural gas production cluster will become one of the central hubs for offshore natural gas processing, gathering and transportation in my country's southern waters, laying a solid foundation for further improving my country's offshore natural gas production capacity.

The "Shenhai No. 1" ultra-deepwater gas field will be put into operation in June 2021. The proven geological reserves of natural gas exceed 100 billion cubic meters. It is the deepest water independently developed in my country and is difficult to explore and develop. The largest offshore ultra-deep water gas field. After the second phase of the "Shenhai No. 1" project is fully put into operation, the reserves of the "Shenhai No. 1" ultra-deepwater gas field will be increased from 100billion cubic meters to 150 billion cubic meters, and annual output from 3 billion cubic meters to 4.5 billion cubic meters, further ensuring national energy security.