In recent years, the global offshore oil and gas exploration has achieved fruitful results. In the Persian Gulf, the Gulf of Mexico, and the North Sea region, offshore oil exploration and development have achieved the most effective results; in the northern Russian waters, the South China Sea and the coast of Indonesia, the Campos Basin in Brazil has also found rich oil and natural gas resources, and some Oil and gas fields have been developed; there have been new discoveries in deep-sea exploration in West Africa, and many large-scale oil fields have also been discovered in the Caspian Sea region. It can be said that the major discoveries in the recent discovery of global oil and gas are mainly located at sea, and the share of offshore oil reserves and production in global oil production is also increasing. Offshore oil exploration has become a hot area for major oil companies in the world to compete.
At present, the scope of marine oil and gas exploration and development has extended from shallow seas and semi- shallow seas to deep seas. With the increasing difficulty in exploration and development, offshore oil and gas exploration and development are increasingly inseparable from the support of advanced science and technology. In recent years, marine exploration has used 3D seismic technology and multidimensional multi-component exploration technologies offshore to promote exploration efficiency. Wellbore technology is also faster than onshore development. It mainly uses long-distance horizontal drilling and horizontal drilling techniques.
Analyze the current international marine oil and gas exploration situation and present the following characteristics. First, the three-dimensional earthquake at sea has the characteristics of low cost and high speed compared with land. In recent years, major companies do not do two-dimensional earthquakes in the exploration and development of deep-sea oil and gas, and most of them directly do three-dimensional earthquakes. Second, most of the expenses for offshore oil and gas exploration and development are spent on platforms. The construction cost of offshore oil platforms is very high. The reduction of the construction of platforms is a major issue for the improvement of offshore oil and gas exploration and development. 'Offshore Affairs on the Sea', drilling wells with extended-reach wells, multi-bottom wells, and branch wells has greatly improved the benefits of deep-sea oil and gas exploration and production. Third, due to the high investment and high risk of offshore oil and gas exploration, deep-sea oil and gas exploration is generally based on finding large traps and discovering large oil and gas fields.
At present, the scope of marine oil and gas exploration and development has extended from shallow seas and semi- shallow seas to deep seas. With the increasing difficulty in exploration and development, offshore oil and gas exploration and development are increasingly inseparable from the support of advanced science and technology. In recent years, marine exploration has used 3D seismic technology and multidimensional multi-component exploration technologies offshore to promote exploration efficiency. Wellbore technology is also faster than onshore development. It mainly uses long-distance horizontal drilling and horizontal drilling techniques.
Analyze the current international marine oil and gas exploration situation and present the following characteristics. First, the three-dimensional earthquake at sea has the characteristics of low cost and high speed compared with land. In recent years, major companies do not do two-dimensional earthquakes in the exploration and development of deep-sea oil and gas, and most of them directly do three-dimensional earthquakes. Second, most of the expenses for offshore oil and gas exploration and development are spent on platforms. The construction cost of offshore oil platforms is very high. The reduction of the construction of platforms is a major issue for the improvement of offshore oil and gas exploration and development. 'Offshore Affairs on the Sea', drilling wells with extended-reach wells, multi-bottom wells, and branch wells has greatly improved the benefits of deep-sea oil and gas exploration and production. Third, due to the high investment and high risk of offshore oil and gas exploration, deep-sea oil and gas exploration is generally based on finding large traps and discovering large oil and gas fields.