South China Sea oil development
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South China Sea Petroleum Resources There are more than 200 oil and gas-bearing structures and 180 oil and gas fields in the South China Sea. Preliminary estimates indicate that the geological oil reserves in the entire South China Sea range from 23 billion tons to 30 billion tons, accounting for about one-third of China's total resources. It is known as the "Second Persian Gulf." It is one of the four world-famous offshore oil and gas resource areas. How to better protect and develop this huge and valuable resource in our territory is a major problem we face. Territorial issues in the South China Sea. On territorial issues in the South China Sea, we have always been in conflict with neighboring countries. * * There are many conflicts, especially Vietnam, Philippines, Brunei, etc. There are still many disputes, and many islands and reefs in the South China Sea are surrounded by * * Seize by force. Related * * The reason for seizing my country's Nansha islands and reefs is the provisions of the United Nations Convention on the Law of the Sea on the exclusive economic zone and continental shelf. Since Indonesia's exclusive economic zone measured from the baseline of the Natuna Islands has entered my country's discontinuous territorial lines, maritime disputes have arisen. Malaysia mainly uses the continental shelf as a reason to include 12 islands and reefs in the southeastern part of the South China Sea within the scope of its claims. Brunei has also demarcated its exclusive economic zone in accordance with the same convention, and has made claims on the Nantong Reef of the Nansha Islands. It can be said that the current oil development in the South China Sea is actually developed by some of the oil and gas resources around the South China Sea. * * Doing it. Surrounding * * More than 50 million tons of oil are extracted from the South China Sea every year, which is equivalent to the annual output of Daqing Oilfield. These include the Philippines, Malaysia, Vietnam, Brunei and other countries. This causes our oil resources to drain rapidly. Problems we encountered during development and developed * * In comparison, my country's marine oil and gas resource investigation and research started late, and the degree of oil and gas exploration in the sea area and the degree of proven oil and gas resources are low. In particular, the mining technology cannot adapt to the high cost of developing deep-sea oil fields in the South China Sea. The South China Sea Islands are quite far from the mainland. Building oil wells requires huge costs, including transportation, construction, personnel supplies, and the high cost of some important components of the oil well itself. Safety is a problem. Even if we can build our own oil fields in the South China Sea, due to our limited naval strength, we cannot even guarantee the safety of our own oil wells.
Application of four well logging methods. Sonic transit time, natural gamma, natural potential, resistivity. For example: Natural potential: 1. Divide permeable rock layers, 2. Estimate mud content 3. Determine formation water resistivity 4. Determine water-flooded layer.
The South China Sea is not only rich in oil and gas resources, but also has other resources. We must pay attention to the protection of maritime sovereignty and the development and utilization of resources. Therefore, it is necessary to enhance technological and economic strength.
Accelerating the development of deepwater oil fields in the South China Sea is of important strategic significance. my country should strengthen its investment in science and technology and develop the South China Sea oil fields through its own technology as soon as possible.
Research and development should be carried out as soon as possible. Several countries in South Asia have robbed China of enough oil and gas resources and cannot ignore it.
I think the oil resources in the South China Sea should be developed and protected as soon as possible, and those few scoundrels can't be allowed to take advantage of Tai Sui!
Unfortunately, I haven’t seen it yet* * What effective countermeasures are there to make people anxious?
My heart aches when I think of the South China Sea. At present, China’s national power is still unable to fully occupy all the islands and reefs, which will cause some unscrupulous foreign countries.* * Create a gap. The news I heard recently is that Vietnam has occupied the largest number of islands and reefs and secretly exploited oil in the South China Sea. It has transformed from an oil-poor country to an oil-exporting country. Next is the Philippines. Even small Indonesia came to rob. It hurts! If China intends to regain its territory in the South China Sea, it will have no problem providing money or personnel.
It is expected that the aircraft carrier will be completed and the navy will be able to dominate the world. By then, the disputes in the South China Sea should be resolved.
Key engineering and basic scientific issues in the development of deep-sea oil and gas fields in the South China Sea - the 169th Young Scientists Forum held by the China Association for Science and Technology. The 169th Young Scientists Forum of the China Association for Science and Technology was hosted by the China Association for Science and Technology and hosted by the Chinese Society of Mechanics and China University of Petroleum (Beijing). From the three major * * More than 40 experts and young scholars from relevant research institutions of oil companies (CNOOC, PetroChina, Sinopec), Shanghai Jiao Tong University, Zhejiang University, Tianjin University, Dalian University of Technology, Ocean University of China, Harbin Engineering University, China University of Petroleum and other scientific research institutes participated in the forum. Professor Duan Menglan of China University of Petroleum (Beijing), Dr. Li Qingping of CNOOC Research Center, Dr. Zeng Xiaohui of Institute of Mechanics, Chinese Academy of Sciences, and Dr. Zhang Jian of Shengli Oilfield Shengli Engineering Design Consulting Co., Ltd. serve as executive directors. * . The theme of the forum is "Key engineering and basic scientific issues in the development of deep-sea oil and gas fields in the South China Sea." The South my country Sea is a sea area with quite complex marine environmental conditions. Disastrous environments such as typhoons, storm surges, ocean currents and internal ocean waves pose a great threat to the safety and production of offshore oil and gas development, causing catastrophic damage to marine structures. In terms of deep-water development, my country lacks technology and equipment with independent intellectual property rights. This backwardness not only severely restricts the development of my country's deep-sea oil and gas resources, but also hinders my country's participation in the development of foreign deep-sea oil and gas fields. Therefore, it is of great practical significance, engineering application and academic research value to carry out discussions on key engineering and basic scientific issues in deep sea oil and gas field development. Focusing on the theme of the forum, the meeting specially invited Professor Gao Deli of China University of Petroleum (Beijing), Professor Liu Jieming, deputy director of the Design and Research Center of China National Petroleum Corporation Offshore Engineering Co., Ltd., researcher Wu Yingxiang of the Institute of Mechanics of the Chinese Academy of Sciences, and Guo Yongfeng, a senior engineer of the deepwater drilling project team of China Oilfield Services Co., Ltd., respectively, to discuss deepwater drilling and completion, deepwater floating Key issues affecting the development of my country's South China Sea oil and gas fields, such as platform structure, deepwater riser system and deepwater ABS system, were given a special report. Wu Yongning, director of the editorial department of "China Offshore Engineering" (English version), made a special elaboration on further promoting the development and strengthening of the field of deepwater marine engineering and the reflection of the latest domestic progress in this field in COE. Xu Songsen, deputy director of the Ocean Engineering Research Institute of the Drilling Institute of Shengli Petroleum Administration, Professor Huang Weiping of Ocean University of China, Professor Qin Hongde of the Deep Sea Engineering Center of Harbin Engineering University, Professor Zhang Shimin of China University of Petroleum (Beijing), Gao Fuping and Zhong Xingfu, associate researchers of the Institute of Mechanics, Chinese Academy of Sciences More than 20 experts including Gong Shunfeng, a member of the Institute of Structural Engineering of Zhejiang University and Associate Professor of the Institute of Structural Engineering of Zhejiang University, gave reports on the basic model and platform selection of deepwater oil and gas field development in the South my country Sea, related scientific and technological issues in deepwater development, cutting-edge technology of deepwater floating platforms, and the laying of submarine pipelines. Involving in-situ stability analysis, numerical simulation technology of hydrodynamic problems of offshore platforms, key technologies for deepwater drilling and completion, pontoon-type deepwater drilling systems, composite oil, gas and water separators, deepwater oil field underwater oil storage technology, tension leg platform integrated negative pressure foundation, deepwater drilling risers The latest research work on key technologies, deepwater anaerobic environment power and energy supply systems, deepwater S-Spar solutions, deepwater riser installation technology and other new issues were heatedly discussed, many innovative academic views were exchanged, and some constructive suggestions were put forward. 1. Main academic viewpoints and latest research progress reflected in the forum 1. Analysis and Research on Deepwater Platform Structure Professor Liu Jieming, deputy director of the Design and Research Center of China Petroleum Corporation Offshore Engineering Co., Ltd., gave a comprehensive and systematic explanation of deepwater floating platforms SPAR, TLP, SS, FPSO, etc., pointed out the key technical issues of deepwater floating platforms in the development of deepwater oil and gas fields in the South my country Sea, and discussed some issues. Deepwater S-Spar is a new type of deepwater platform with deep draft, small waterline area and good movement stability. It is suitable for oil and gas development projects with water depths of 500~3000m. Professor Huang Weiping from the School of Engineering of Ocean University of China gave a report entitled "Integrated Analysis Method of Floating Structures and Riser Systems and Deepwater S-Spar Solutions". He introduced in detail the research and development status of foreign Spar and its key technologies, and analyzed the application prospects of deepwater oil and gas development in the South China Sea and the new concept of Spar under the environmental conditions of the South China Sea. From Tianjin University No. 4 Conference 7 Zou Xing, who specializes in the design and manufacturing of ships and marine structures, gave a report titled "Research on the Design of Integral Negative Pressure Foundation for Tension Leg Platforms." The report pointed out that the applicable water depth of the negative pressure barrel foundation when used for tension leg platforms is only 330m to 350m, which is far from meeting the requirements of deep sea development. Therefore, in-depth research on negative pressure On the basis of the barrel-shaped foundation, a new type of integral negative pressure foundation scheme for the tension leg platform suitable for water depths of thousands of meters was proposed, and a reasonable structural type was designed. Through structural and performance calculations, its feasibility in the deep sea high-pressure environment was proved, which is of great significance to my country's deep sea development, especially the development of oil and gas fields in the South China Sea. Professor Qin Hongde from the Deep Sea Engineering Center of Harbin Engineering University gave a report titled "Frontier Technology in Deep Sea Floating Platforms". Dr. Wang Junrong from the School of Engineering of Ocean University of China gave a report titled "Research on Parameter Excitation Instability in SPAR Main Body Design". At the same time, Dr. Zhang Jie, Business Director of Renyoumaike (Beijing) Fluid Engineering Technology Co., Ltd. gave a report titled "Numerical Simulation Technology of Hydrodynamic Problems of Ocean Platforms". The report described the hydraulic problems of ocean platforms and introduced the application of "FINE" TM/Marine" software for numerical simulation. 2. Key technologies for submarine pipelines Submarine pipelines are not only subject to huge hydrostatic pressure during deepwater construction and laying, but also axial tension and bending. The safety of the pipeline has become an important issue. Dr. Gong Shunfeng from the Institute of Structural Engineering of Zhejiang University took the S-shaped pipe laying method of submarine pipelines as the research object. He used the catenary theory to establish the static equilibrium differential equation of the pipeline. Through theoretical analysis, he provided a numerical calculation method for iteratively solving the overall shape of the pipeline. He also developed corresponding calculation and analysis programs and analyzed the influence of different laying water depths, pipe diameters, counterweight layer thickness, stinger length and control strain on the pipeline laying shape. Dr. Gong Shunfeng finally pointed out that when the bottom inclination of the pipe-laying ship's stinger is large, the laying water depth is large, the pipe diameter is small, and the control strain is large, the pipe laying shape will be steeper. ； When the bottom inclination angle of the stinger is small, the pipe laying shape will be steeper if the stinger is long, the initial inclination angle of the pipeline is large, and the radius of the stinger is small. ； The thickness of the concrete weight layer has no obvious effect on the pipe laying shape. Following this theme, the executive director of this forum * , Dr. Zhang Jian, deputy general manager of Shengli Engineering Design Consulting Co., Ltd., introduced the research on the dynamic characteristics and response of submarine suspended pipelines, which included the general method of finite element modeling, numerical solution of free vibration frequency of multi-degree-of-freedom structures, analysis of factors affecting the natural vibration characteristics of the structure, wave force calculation and linearization, multi-degree-of-freedom random response analysis methods, etc. Dr. Bai Xinglan from Ocean University of China gave a report titled "Integral Dynamic Analysis of Deepwater Steel Catenary Riser and Spar Platform". The report pointed out that the overall analysis method of floating structure and SCR was used, and the top boundary conditions were the displacement constraints of the mooring system and Sp ar's force boundary conditions and the normal constraints at the bottom of the SCR are simulated using a spring system or a spring damping system. Based on CABLE3D, the overall analysis program V-CABLE3D for SCR and floating structures is developed, which not only realizes kinematic coupling, but also dynamic coupling. At the same time, Dr. An Chen and Dr. Gu Jijun from the Offshore Oil and Gas Research Center of China University of Petroleum (Beijing) introduced the key technologies of deepwater riser installation and the detection and monitoring of oil pipelines respectively. 3. Deepwater Drilling and Completion Technology Professor Gao Deli, leader of the oil and gas well engineering discipline at China University of Petroleum (Beijing) and Yangtze River Scholar, gave the first special report of the conference on key issues in the development of deepwater oil and gas fields, including deep structure of deepwater wells, deepwater dual gradient drilling, deepwater extended reach wells, deepwater wellbore stability, deepwater conduit installation, and deepwater riser mechanical characteristics. , then Guo Yongfeng, a deepwater drilling expert from China Oilfield Services Co., Ltd., gave a speech entitled "Introducing the Artificial Seabed Concept to Develop Deepwater Drilling Technology with Chinese Characteristics", giving an overview of deepwater ABS drilling technology, detailing the principles, theoretical verification, performance predictions of ABS deepwater drilling and the status of field tests just conducted in the South China Sea. ABS is an effective way to upgrade my country's existing drilling platforms with a water depth of less than 500 meters to a water depth of 1000-1500 meters. * * Accelerate the pace of deepwater drilling in our country. The riser is a key piece of equipment for deepwater drilling and completion. Its main functions are to isolate seawater, guide drilling tools, circulate drilling fluid, and compensate for the heave motion of floating drilling devices. As an important component connecting the floating drilling device and the underwater wellhead, the riser is an important but weak link in the entire system. Its correct use is directly related to the smooth completion of drilling and completion operations. Currently, the overall design and analysis technology of deepwater drilling riser systems has been developed by only a few * * controlled by the relevant companies. In order to improve the design and use capabilities of deepwater drilling risers in my country, it is necessary to combine the current status of deepwater development in my country, fully draw on foreign research experience, and master the key technologies of deepwater drilling risers through basic theoretical research and independent research and development of core technologies. Experts from China University of Petroleum (East China) conducted research on "deep water drilling risers and wells" * * "Technology" was specially studied, and a report titled "Research on Key Technologies for Deepwater Drilling Riser Facing the South China Sea" was made in response to the special load environment of the South China Sea. 4. Oil, gas and water separation and underwater oil storage. The efficient separation of oil, gas and water is a concern in oil and gas production, transportation and storage in onshore and offshore oil fields. Compound separation methods are the recent development direction. “During the Tenth Five-Year Plan period, this research topic was included in the major scientific and technological cooperation projects between China National Offshore Oil Corporation and the Chinese Academy of Sciences. Researcher Wu Yingxiang and Associate Researcher Zhong Xingfu of the Institute of Mechanics, Chinese Academy of Sciences reviewed the In the past seven years, the Institute of Mechanics of the Chinese Academy of Sciences has carried out research work and made progress in the development of new composite separators. It has proposed a composite separation method that integrates gravity, centrifugation, and expansion. Using a research route that focuses on experiments and combines numerical simulation calculations, an experimental device for simulating oil, gas, and water separation has been built. The full-scale composite separator has been used in onshore and offshore oil field industrial field tests to assess its final indicators. Xu Songsen, deputy director of the Ocean Engineering Research Institute of the Drilling Institute of the Shengli Petroleum Administration Bureau, gave a report titled "Application Ideas of Underwater Oil Storage Technology in Deep Sea Oil Field Development". This underwater oil storage and production model stores crude oil produced at subsea wellheads directly into underwater storage tanks. A small floating mooring device is set up in the production area. The crude oil export hose is connected to the mooring device, and shuttle tankers are also docked here to realize crude oil transfer. This isolated oil-water replacement underwater oil storage technology is basically not limited by water depth, and the cost will not rise sharply with the increase of water depth. It is suitable for deep-sea applications. Compared with floating oil storage, underwater oil storage is less affected by ice and wave forces, has low structural strength requirements, and has the advantage of being mobile. Moreover, it has complete intellectual property rights and does not need to import expensive mooring systems, so the cost can be significantly reduced while avoiding wind and production shutdowns. 2. Consensus reached by participants and relevant suggestions This article comes from Aguo Petroleum Network ( www.agoil.cn )
Extracting oil from the South China Sea is not a simple matter. We should first build a strong navy to protect our territorial integrity and the safety of offshore oil production!
Study hard* , devote yourself to maritime engineering, strengthen our country’s prestige, and strengthen our China.