Fracture and cavern hydrocarbon reservoirs in carbonates are an important pool type worldwide. The karst cavern reservoirs are easiest to identify on seismic reflection data. The prediction, exploration, and developme...Fracture and cavern hydrocarbon reservoirs in carbonates are an important pool type worldwide. The karst cavern reservoirs are easiest to identify on seismic reflection data. The prediction, exploration, and development of this type of reservoir require theoretical research on seismic wave fields reflected from complex inhomogeneous media. We compute synthetic seismic sections for fluidfilled cavern reservoirs of various heights and widths using random media models and inhomogeneous media elastic wave equations. Results indicate that even caverns significantly smaller than 1/ 4 wavelength are detectible on conventional band-width seismic sections as diffractions migrated into bead-type events. Diffraction amplitude is a function of cavern height and width. We introduce a width-amplitude factor which can be used to calculate the diffraction amplitude of a cavern with a limited width from the diffraction amplitude computed for an infinitely wide cavern.展开更多
The tourism resource characteristics of Yinhe karst cave in Tiangui mountain were discussed and the formation term and mechanism of every outstanding sight in the cave were discussed.In the process of empoldering the ...The tourism resource characteristics of Yinhe karst cave in Tiangui mountain were discussed and the formation term and mechanism of every outstanding sight in the cave were discussed.In the process of empoldering the tourism resource in Tiangui Mountain,the humanities and geoscience tourist resources should be conformed and the variety of travel models were established,such as the sightseeing travel,special features travel,scientific knowledge travel,and so on.展开更多
随着全球能源结构转型与电力系统灵活性需求的日益增长,压缩空气储能(Compressed Air Energy Storage,CAES)作为一种大容量、长时储能技术,其展现出巨大的发展潜力。陕西省作为我国西部重要能源基地,拥有大量的盐穴、废弃煤矿、枯竭油...随着全球能源结构转型与电力系统灵活性需求的日益增长,压缩空气储能(Compressed Air Energy Storage,CAES)作为一种大容量、长时储能技术,其展现出巨大的发展潜力。陕西省作为我国西部重要能源基地,拥有大量的盐穴、废弃煤矿、枯竭油气藏、灰岩溶洞等地下空间,这些天然或人工形成的地下空间为建设大型压缩空气储能设施提供了理想的场所,其通常具有较高的密封性和稳定性,适合作为高压空气的储存容器,可减少新建储气室的成本和对环境的影响。我省在资源、技术、政策与市场需求方面均具备开展地下空间压缩空气储能的良好条件,其发展前景广阔,有望成为我国乃至全球储能技术应用的典范。展开更多
基金This research project is sponsored by Nation’s Natural Science Found of China (No. 40174034 and 40274038) as well as theOpening Found Projects of the CNPC geophysical exploration key laboratory (No. GPKL0207).
文摘Fracture and cavern hydrocarbon reservoirs in carbonates are an important pool type worldwide. The karst cavern reservoirs are easiest to identify on seismic reflection data. The prediction, exploration, and development of this type of reservoir require theoretical research on seismic wave fields reflected from complex inhomogeneous media. We compute synthetic seismic sections for fluidfilled cavern reservoirs of various heights and widths using random media models and inhomogeneous media elastic wave equations. Results indicate that even caverns significantly smaller than 1/ 4 wavelength are detectible on conventional band-width seismic sections as diffractions migrated into bead-type events. Diffraction amplitude is a function of cavern height and width. We introduce a width-amplitude factor which can be used to calculate the diffraction amplitude of a cavern with a limited width from the diffraction amplitude computed for an infinitely wide cavern.
文摘The tourism resource characteristics of Yinhe karst cave in Tiangui mountain were discussed and the formation term and mechanism of every outstanding sight in the cave were discussed.In the process of empoldering the tourism resource in Tiangui Mountain,the humanities and geoscience tourist resources should be conformed and the variety of travel models were established,such as the sightseeing travel,special features travel,scientific knowledge travel,and so on.
文摘随着全球能源结构转型与电力系统灵活性需求的日益增长,压缩空气储能(Compressed Air Energy Storage,CAES)作为一种大容量、长时储能技术,其展现出巨大的发展潜力。陕西省作为我国西部重要能源基地,拥有大量的盐穴、废弃煤矿、枯竭油气藏、灰岩溶洞等地下空间,这些天然或人工形成的地下空间为建设大型压缩空气储能设施提供了理想的场所,其通常具有较高的密封性和稳定性,适合作为高压空气的储存容器,可减少新建储气室的成本和对环境的影响。我省在资源、技术、政策与市场需求方面均具备开展地下空间压缩空气储能的良好条件,其发展前景广阔,有望成为我国乃至全球储能技术应用的典范。
