关键词: 国家科技重大专项, 示范工程, 常压页岩气, 产学研用, 勘探开发模式, 绿色高效, 业财融合

Abstract: South China has a great potential for normal pressure shale gas resources with a broad prospect for development. Based on the national science and technology major projects, Sinopec East China Oil & Gas Company highlighted the normal pressure shale gas geological characteristics in Pengshui area of Southeast Sichuan, focused on the problems and goals, pursued the two main principles of higher production and lower cost, established the “production-university-research-application” joint research project team in integration of the advantageous resources and made breakthrough in the key technologies on the basis of innovative basic theoretical study. The company tried to establish a green and high-efficiency normal pressure shale gas exploration and development model in a number of areas, such as technology, integrated operation and oil company operating model. It also put in place the organizational management system centering “combination of business with finance”. The management model of this system was composed of the leadership team, the technological research team, the comprehensive finance team, the experts consultancy team and the special project office. The finance system followed the principle that no payment was made without a budget, beyond the budget or out of the budget, while adjustment of fund budget for the major special projects should be based on policies, evidences, applications and approvals. The organizational management system also placed the emphasis on both tasks of goal and supervision of fund use and kept the demonstration project on the track of the rules and in high-efficiency operation. In the past five years, the Pengshui demonstration project has created the “three-factor controlling reservoir” geological theory on normal pressure shale gas, which referred to deep-water shelf facies controlling hydrocarbon accumulation, preservation conditions controlling the degree of shale gas enrichment and in-situ stress field influencing effects of fracturing transformation and controlling single-well yield. The geological theory led to a series of key technologies, such as low-density three-dimension seismic exploration, optimized fast drilling, and complex fracture network fracturing. As a result, with the breakthrough made in commercial development of normal pressure shale gas, the first large-scale shale gas field was found in China. The proven geological reserves approached 2000×108m3 with a 21×108m3/a productivity constructed. The shale gas production has been accumulated to surpass 36×108m3. The research achievements have been extensively applied in the areas of the same kind, showing a remarkable effect of guidance and demonstration.