Key Technology and Application of Automatic Welding for Oil and Gas Long-Distance Transportation Pipeline in Complex Environment
Project Name: Key Technology and Application of Scale Benefit Development of Marine Shale Gas in Sichuan Basin
Project Introduction: Focusing on the major demand of national energy security, Professor Qi Zhilin of Chongqing University of Science & Technology and his team have created the shale gas development theory of "three optimizations and three controls", independently established the key technology series of marine shale gas scale benefit development, and built the geological engineering integration platform, aiming at the problems of thin thickness, strong heterogeneity and large horizontal stress difference of marine shale gas high-quality reservoirs in Sichuan Basin, which led to unclear understanding of development law, key development technologies to be broken through, and high-yield well mode not yet established. So they have established a high-yield well cultivation mode to realize the scale benefit development of marine shale gas in Sichuan Basin, and the overall research results have reached the international leading level. The project achievements have been applied on a large scale in shale gas fields such as Yuxi and Weiyuan, boosting the annual output of shale gas in China to over 20 billion cubic meters, and making Sichuan Basin the second largest shale gas producing area in the world after North America. The project has been applied and promoted in recent three years, with a cumulative increase of 6.93 billion cubic meters of shale gas and a new profit of RMB 3.28 billion.