[Ten years of development of chemical equipment] Shipment of the largest module of 100 billion cubic meters of gas field in Bohai Bay from 1076 to 2023

Thread Content

On July 10, the central platform of the Bozhong 19-6 condensate gas field phase I project, which was contracted by Offshore Oil Engineering Co., Ltd., was successfully shipped at the Qingdao site and will soon go to the western Bohai Sea to enter the offshore installation and joint commissioning stage. This marks key progress in the construction of the first 100-billion-cubic-meter gas field in the Bohai Bay and is important for ensuring * * Energy security and energy structure optimization are of great significance. 　　The central processing platform for this shipment is 32 meters high, 65 meters long and 56 meters wide, with a projected area nearly the size of nine standard basketball courts. ； The platform is equipped with a living building that can accommodate 120 people working at the same time. It is an 8-leg multi-functional comprehensive offshore oil and gas platform integrating production, living and ecological functions. ； The total weight of the platform reaches more than 12,000 tons, which is equivalent to the weight of 10,000 household cars. It is the largest module of the first phase project. 　　According to Ju Wenjie, general manager of COOEC Bozhong 19-6 Condensate Gas Field Phase I Development Project, this shipment adopts the longitudinal sliding method, with four 750-ton tension jacks dragging the 10,000-ton block through 168 steel strands and moving to the barge at an average speed of 20 meters per hour. The transportation of modules from the land slide to the barge slide is the most critical and risky link in ship loading. The entire process requires the two slides to be on the same plane, with a maximum height difference of no more than 25 mm, which poses a great challenge to the barge's load adjustment methods and capabilities. 　　The reporter learned from the interview that the project team scientifically formulated the barge load shifting and towing slip plan, selected the high tide period for sea and land weight transfer, improved the reliability of shipment, monitored the status of the ship in real time, paid close attention to the height difference between the two slides, and updated the slip and load shifting plan in real time based on the change in the center of gravity of the module. It took more than 10 hours to successfully complete the shipment. After the subsequent central platform is transported to the installation site by barge, it is installed offshore using the floatover method. 　　It is reported that after the project is put into operation, the produced natural gas will be transported from the central platform to the newly built Binzhou terminal for processing through a pipeline of about 130 kilometers long. ； After the condensate is processed on the central platform, it is transported to the "Offshore Floating Oil and Gas Processing Plant - Offshore Oil 113" for oil and water separation, and then transported to the refinery for processing by tanker. 　　According to Wan Wentao, project leader of the Engineering Construction Center of CNOOC Tianjin Branch, the first phase of the Bozhong 19-6 condensate gas field project will be put into operation within this year, which will alleviate the gas shortage problem in North China and provide safer, cleaner, and low-carbon energy guarantee for the high-quality social and economic development of the Beijing-Tianjin-Hebei and Bohai Rim regions.