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Qilu Network Lightning News on January 19, from "nothing" to "proud of the crowd", China's offshore equipment with "Blue Whale No. 1" as the core will play a loud "golden signboard" of Shandong's marine economy in the marine high-end equipment manufacturing industry. Today, let's explore the story of the birth of blue whale 1, the world's largest and deepest offshore drilling platform.
Liu Zhonglin, a senior engineer of Yantai CIMC Raffles Marine Engineering Co., Ltd., the project technical manager of the ultra-deepwater semi-submersible drilling platform "Blue Whale Series", has been engaged in the research and development and design of offshore platforms for 12 years.
Building an ultra-deepwater drilling platform that belongs to Chinese is a dream that Liu Zhonglin and his colleagues have always had. It is like a needle of the sea god, which has the depth of direct exploration of the seabed and can stand still in the terrifying waves. Finding the right building materials is the first step in this mega project.
Liu Zhonglin introduced, "The most core and most difficult steel plate is F690, we need to use 100 mm thick F690 steel plate, which is very rare in China." ”
F690 steel plate for the core area where the four pile legs of the "Blue Whale" are connected to the huge hull. The steel plate in this part should be able to resist the long-term lapping and corrosion of seawater, and it must also have enough toughness to resist the impact of the terrifying waves. 100 mm thick steel plate, usually used in large bridges, chemical refining, it is used for high-strength hull structure, the quality and toughness of the steel plate put forward more stringent requirements.
Liu Zhonglin said: "We have found three in the world, and when we did CTOD experiments, they all failed. Later, we sought help in China, found Angang Steel, and cooperated with the captain to tackle the problem, spending nearly a year to create a 100 mm thick F690 steel plate. ”
This sea giant finally has a pair of steel bones that can withstand the highest level of storms. But to dominate the 43,000-ton behemoth, traditional positioning systems alone are not enough, it needs a new "super brain" to deal with the more dangerous deep sea.
The centralized control room is the "central brain" of the "Blue Whale", where the DP3 closed-loop system is used for the first time in an ultra-deepwater twin-tower drilling platform. "We can withstand a Category 16 typhoon, which is the limit." Liu Zhonglin introduced.
Just as important as the positioning system is the power supply system of the twin drill towers. Liu Zhonglin said, "All eight hosts are connected to the line, and if there is a problem with one engine, such as the most dangerous short circuit, its entire system will not burn out." Within about 0.6 seconds, they will find this point of failure, and then remove it, and the whole system can still be powered normally. ”
Under the reasonable arrangement of technical personnel, the "Blue Whale" is equipped with a more energy-efficient power system, which is equivalent to winning more operating time and greatly improving the efficiency of energy extraction.
On February 13, 2017, the deck area was equivalent to the size of a standard football field, and the 37-story sea giant from the bottom of the ship to the top of the drill rig was finally completed and delivered, and it was named "Blue Whale 1".
On May 10, 2017, in the Shenhu Sea in the northern Part of the South China Sea, Blue Whale 1 successfully tested combustible ice, creating a double world record for mining time and production.
It is understood that the maximum operating water depth of "Blue Whale No. 1" is 3658 meters, and the maximum drilling depth is 15250 meters. Chinese energy people will continue to sail to the deep sea together with the "blue whales", with the help of this super project of the sea, light up the deep blue dream of embracing the ocean, and expand the new territory of energy.
Lightning News reporter Dong Di reports