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Shale gas is natural gas extracted from shale formation. It is an important unconventional natural gas resource. The efficient development of shale gas can alleviate the contradiction between China's energy supply and demand and ensure the energy security. After more than ten years of technical research, China has realized large-scale commercial development of marine shale gas, but it is still in the exploration stage in land-sea transitional phase and continental shale gas mining. The use of supercritical carbon dioxide to enhance shale gas development is at the forefront of current international research. Research in this field has important practical significance for increasing shale gas production, reducing carbon dioxide emissions, and reducing water consumption.
Under the support of the National 973 Program “Supercritical Carbon Dioxide Enhanced Shale Gas Efficient Development Foundation†project, the academic team of Academician Li Xiaohong of Wuhan University, in conjunction with Shaanxi Yanchang Petroleum (Group) Co., Ltd. and China University of Petroleum, launched supercritical carbon dioxide. Basic theoretical research and key technical research on the efficient development of shale gas. After years of exploration, the research team proposed a method for detecting high-quality shale gas reservoir “anhydrous dessertâ€, established a carbon dioxide-methane adsorption desorption and displacement displacement theory, and formed a supercritical carbon dioxide waterless fracturing technology. A batch of experimental equipment for the efficient extraction of shale gas from supercritical carbon dioxide.
On June 17, 2017, the research team conducted a field trial of terrestrial shale gas supercritical carbon dioxide fracturing in Yan'an, Shaanxi Province. The results show that the shale gas reservoir using supercritical carbon dioxide fracturing can effectively improve the crack complexity, increase the formation energy and crack reconstruction area, expand the seepage volume, and significantly improve the continental shale gas production. It marks that China has made important theoretical and technological breakthroughs in the independent exploration of the efficient development of continental shale gas. It is located at the forefront of the field and is expected to open up a new way for the development of green, environmentally friendly and efficient continental shale gas, which is a dense oil and gas for China. The efficient development of resources provides reference and promotes the development of related disciplines.
China has independently explored the important breakthrough in the efficient development of continental shale gas
Abstract China Superhard Network September 12, China has made important theoretical and technological breakthroughs in the independent exploration of the efficient development of continental shale gas, and is expected to open up a new way of green, environmentally friendly and efficient development of continental shale gas. Provide reference for the efficient development of China's tight oil and gas resources,...
China Superhard Network September 12, China has made important theoretical and technological breakthroughs in independently exploring the efficient development of continental shale gas, and is expected to open up a new way for green, environmentally friendly and efficient development of continental shale gas. The efficient development of China's tight oil and gas resources provides reference and promotes the development of related disciplines.