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Progresses and significances of research on high-efficiency gas reservoir formation in China

ZHAO Wen-zhi,WANG Ze-cheng,WANG Zhao-yun,WANG Hong-junResearch Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083,China  
Research progress on high-effective gas reservoirs formation is introduced in this paper, as part of the national basic research program of China , 2001CB209100. The research and evaluation focused on three key topics related to high-efficiency gas reservoir formation, including the validity of gas-source kitchen, the validity of reservoir formation processes and the validity of geological control elements. Some progress was made in the past two years, including the mode of successive gas generation from organic materials, the concept and new evaluation index of high-efficiency gas-source kitchen and high-efficiency reservoir formation process, the formation mechanism of high-quality reservoirs in deeply buried basins, and three major geologic factors for the formation of hydrocarbon reservoirs. The research progress enriches China natural gas geology, and is very helpful to the exploration and expansion of potential areas of high-efficiency gas reservoirs.
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