With the rapid development of submarine oil and gas,the security issues of submarine oil and gas pipeline become increasingly prominent,and regular inspection of submarine pipeline is particularly important.Therefore,...With the rapid development of submarine oil and gas,the security issues of submarine oil and gas pipeline become increasingly prominent,and regular inspection of submarine pipeline is particularly important.Therefore,a submarine pipeline inspection robot system based on CT technology to solve the problems such as low traditional manual inspection efficiency,high labor cost,low security and backward inspection methods.Based on the platform of ROV robot,carrying CT scanner as an external detection device,the system is used for non-invasive inspection of submarine pipeline,which is safe and harmless,with good economy,high mobility,and strong environmental adaptability.Compared with traditional technology,CT scanner’s external inspection technology used in the system avoids the damage to the external protective layer of the pipeline in the measurement of pipeline wall thickness.Meantime,it can provide the tomography of the pipe wall and the composition of the sediment material on the inside wall,which fills the gap in this technical field in China.According to the test,the robot has the characteristics of stable adsorption,flexible movement,and clear pipeline CT scanning image,and can realize the intelligent inspection of submarine pipeline.展开更多
This paper formulates a set of three technologies that should deal with the greatest threat to mankind—climate change at the lowest cost.The main technology will be“Sunny Rain”.It considers technology to prevent er...This paper formulates a set of three technologies that should deal with the greatest threat to mankind—climate change at the lowest cost.The main technology will be“Sunny Rain”.It considers technology to prevent eruptions of submarine volcanoes at shallow depths and technologies that provide scalable and impactful solutions to reduce carbon emissions across diverse industries as complementary technologies used to reduce cost.A list of submarine volcanoes at shallow depths that are likely to spew waterborne dust into the atmosphere has begun to be created.If the governments of Japan,Italy,and Greece,which have submarine volcanoes at shallow depths(Kiki,Marsili,Columbo),prevent eruptions of these volcanoes,it will provide electricity to these countries,save many of their citizens from death,and save humanity from the greatest threat—climate change—in the most inexpensive way possible!展开更多
In China submarine geosciences represents a newly established discipline of oceanography, focusing on the oceanic lithosphere, and its interface with the hydrosphere and biosphere. Recently, supported by the National ...In China submarine geosciences represents a newly established discipline of oceanography, focusing on the oceanic lithosphere, and its interface with the hydrosphere and biosphere. Recently, supported by the National High Technology Research and Development Program and other high-tech development projects, significant progress has been made in the development of advanced technologies and equipment. This en- ables the scientists in China to carry out explorations of the international seabed area in the Pacific Ocean and on the Southwest Indian Ridge. In addition, they have been active in the research activities associated the mid-ocean ridges and western Pacific marginal seas. It is anticipated that this research field will continue to be highly fruitful in the near future.展开更多
Ultrasonic seismic model experiment plays an important role in engineering multi wave seismic prospecting(EMSP), which has been used to do the complex engineering seismic exploration. It is introduced that the applic...Ultrasonic seismic model experiment plays an important role in engineering multi wave seismic prospecting(EMSP), which has been used to do the complex engineering seismic exploration. It is introduced that the application of the technology in quality test of Yongjiang river submarine tunnel tube foundation in the paper. The material of the model was got from on the spot. The successful test has been made with results of the model experiment.展开更多
海洋石油单点系泊(Single Point Mooring,SPM)系统被广泛应用于海洋油气田开发,是海上石油运输的中转终端,采用合理的检测方案以保障其安全性是海洋石油工程领域备受关注的问题。声学探测、目视检测是常用的单点系泊系统外检测技术。本...海洋石油单点系泊(Single Point Mooring,SPM)系统被广泛应用于海洋油气田开发,是海上石油运输的中转终端,采用合理的检测方案以保障其安全性是海洋石油工程领域备受关注的问题。声学探测、目视检测是常用的单点系泊系统外检测技术。本研究基于EdgeTech 6205组合式双频侧扫声呐与条带式多波束测深系统、Innomar SES 2000参量阵浅地层剖面仪、国产FIFISH PRO W6水下机器人等调查装备,介绍了声学探测技术和目视检测技术在国内某单点系泊系统外检测中的应用实例。探测结果表明,该单点系泊区域地形整体平坦,局部受侵蚀冲刷影响,区域内有6条锚链沟发育,锚链沟深度为1.0-4.5 m,锚链摆动小,浮筒稳定性较好;管道埋藏类型分为完全埋藏型、浅埋藏型、裸露型3类。通过综合分析对比,查明了锚链被大量生物附着、腐蚀速度加快的具体位置,提出了定期进行防腐蚀除锈维护的有效建议。展开更多
文摘With the rapid development of submarine oil and gas,the security issues of submarine oil and gas pipeline become increasingly prominent,and regular inspection of submarine pipeline is particularly important.Therefore,a submarine pipeline inspection robot system based on CT technology to solve the problems such as low traditional manual inspection efficiency,high labor cost,low security and backward inspection methods.Based on the platform of ROV robot,carrying CT scanner as an external detection device,the system is used for non-invasive inspection of submarine pipeline,which is safe and harmless,with good economy,high mobility,and strong environmental adaptability.Compared with traditional technology,CT scanner’s external inspection technology used in the system avoids the damage to the external protective layer of the pipeline in the measurement of pipeline wall thickness.Meantime,it can provide the tomography of the pipe wall and the composition of the sediment material on the inside wall,which fills the gap in this technical field in China.According to the test,the robot has the characteristics of stable adsorption,flexible movement,and clear pipeline CT scanning image,and can realize the intelligent inspection of submarine pipeline.
文摘This paper formulates a set of three technologies that should deal with the greatest threat to mankind—climate change at the lowest cost.The main technology will be“Sunny Rain”.It considers technology to prevent eruptions of submarine volcanoes at shallow depths and technologies that provide scalable and impactful solutions to reduce carbon emissions across diverse industries as complementary technologies used to reduce cost.A list of submarine volcanoes at shallow depths that are likely to spew waterborne dust into the atmosphere has begun to be created.If the governments of Japan,Italy,and Greece,which have submarine volcanoes at shallow depths(Kiki,Marsili,Columbo),prevent eruptions of these volcanoes,it will provide electricity to these countries,save many of their citizens from death,and save humanity from the greatest threat—climate change—in the most inexpensive way possible!
文摘In China submarine geosciences represents a newly established discipline of oceanography, focusing on the oceanic lithosphere, and its interface with the hydrosphere and biosphere. Recently, supported by the National High Technology Research and Development Program and other high-tech development projects, significant progress has been made in the development of advanced technologies and equipment. This en- ables the scientists in China to carry out explorations of the international seabed area in the Pacific Ocean and on the Southwest Indian Ridge. In addition, they have been active in the research activities associated the mid-ocean ridges and western Pacific marginal seas. It is anticipated that this research field will continue to be highly fruitful in the near future.
文摘Ultrasonic seismic model experiment plays an important role in engineering multi wave seismic prospecting(EMSP), which has been used to do the complex engineering seismic exploration. It is introduced that the application of the technology in quality test of Yongjiang river submarine tunnel tube foundation in the paper. The material of the model was got from on the spot. The successful test has been made with results of the model experiment.
文摘海洋石油单点系泊(Single Point Mooring,SPM)系统被广泛应用于海洋油气田开发,是海上石油运输的中转终端,采用合理的检测方案以保障其安全性是海洋石油工程领域备受关注的问题。声学探测、目视检测是常用的单点系泊系统外检测技术。本研究基于EdgeTech 6205组合式双频侧扫声呐与条带式多波束测深系统、Innomar SES 2000参量阵浅地层剖面仪、国产FIFISH PRO W6水下机器人等调查装备,介绍了声学探测技术和目视检测技术在国内某单点系泊系统外检测中的应用实例。探测结果表明,该单点系泊区域地形整体平坦,局部受侵蚀冲刷影响,区域内有6条锚链沟发育,锚链沟深度为1.0-4.5 m,锚链摆动小,浮筒稳定性较好;管道埋藏类型分为完全埋藏型、浅埋藏型、裸露型3类。通过综合分析对比,查明了锚链被大量生物附着、腐蚀速度加快的具体位置,提出了定期进行防腐蚀除锈维护的有效建议。
