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A series of changes are currently taking place in the field of oil and gas exploration in the world. With the development of information technology, international oil and gas exploration is moving toward the refinement and integration of exploration theory and applied technology. Oil and gas exploration studies have formed a comprehensive system based on multidisciplinary collaborative research. Up to now, China's scientific and technical workers have formed eight major theoretical systems, such as the geomechanical theory of independent innovation in oil and gas exploration and development, and established eight major oil and gas exploration technology series, such as complex oil and gas reservoir development technologies and marine oil and gas exploration and development technology series. In the future, on the one hand, we must aim at the latest research results and development trends in the international oil and gas exploration community. On the other hand, we must closely integrate our own resources and actively implement our own innovation strategy.
In accordance with the key tasks identified in the "Planning and Revitalization of the Petrochemical Industry", the key scientific and technological breakthroughs for oil and gas exploration and development in the future will be focused on the deepening of theories and exploration techniques for land-phase oil production and accumulation, marine oil and gas geology and exploration technologies, and lithologic formations. Knowledge of Tibetan geological theory and exploration technology; Improve and improve exploration techniques such as earthquakes, logging, drilling, and oil testing, increase fine exploration of mature exploration areas; Accelerate the exploitation and utilization of natural gas resources, and explore applicable to complex geological conditions High-tech gas exploration, increase exploration success rate, reduce exploration risk. Develop technologies for improving oil recovery in old oil areas and special oil and gas reservoirs, oil field and oil control technologies, and polymer flooding industrial application technologies; improve and develop special horizontal well drilling technologies and complex structural wells for complex geological conditions; Improve the ultimate recovery of oil reservoirs; develop and apply technologies for low-grade, high-sulfur gas reservoirs to increase natural gas resource recovery.
Up to now, China has obtained a number of breakthroughs in the above areas and has achieved a number of mature innovations. The most representative technology is a large-scale enhanced oil recovery technology for medium-deep layers of heavy oil, including medium-deep layers (buried depth of 600 to 1400 meters) ordinary heavy oil (viscosity 1000 to 10,000 centipoise) reservoir steam flooding development optimization design, high Dry surface steam injection technology, high-temperature and high-pressure downhole dynamic real-time monitoring technology, high-efficiency vacuum insulation pipe and packer combined pipe column separation technology, high-temperature large displacement lifting technology and equipment, can increase recovery Above 20%, it is applicable to nearly 2 billion tons of geological reserves of medium and deep heavy oil in China.
Another major achievement is the accumulation of high-sulfur gas accumulation mechanism and distribution prediction technology that is highly valued by the State Council. It clarified the formation mechanism and distribution law of hydrogen sulfide, established the identification technology and prediction method of hydrogen sulfide genesis, scientifically developed a high-hydrogen sulfide hydrogen field development strategic plan, and effectively guided the exploration and development of hydrogen sulfide-containing fields. This technology has played an important role in the exploration and development of sulfur-bearing oil and gas fields in the Sichuan Basin, Liaohe Oilfield, Tarim Oilfield, and Huabei Oilfield, and has successfully predicted the distribution and resource potential of high H2S. Among them, the guideline added more than 400 billion cubic meters of proven reserves of hydrogen sulfide gas, 120.58 million tons of sulfur resources, and 72.75 million tons of economic recoverability. The economic value of sulphur alone is as high as 25.8 billion U.S. dollars.
China has rich oil and gas resources, extensive exploration areas and regions, low exploration and resource conversion rates, and huge oil and gas exploration potential. Technological innovation, as a main theme, will make the future of this field full of hope and play the Chinese music movement.
Oil and Gas Development: Combining Resource Features and Developing Applicable Technologies
The growth of China's oil and gas reserves has now reached a peak. In 2008, crude oil production reached 189 million tons and natural gas was 76 billion cubic meters. This peak period may extend to around 2050, and the main force supporting its development comes from scientific and technological progress.