中国石化重点探区钻井完井技术新进展与发展建议

近年来，中国石化在顺北、川渝和鄂尔多斯等重点探区，通过技术攻关与现场实践，初步形成了顺北8 000～9 000 m特深层钻井完井关键技术、川渝页岩气钻井完井关键技术、四川海相碳酸盐岩油气钻井关键技术和华北鄂尔多斯盆地致密气低成本钻井完井关键技术，支撑其在特深层油气、海相碳酸盐岩油气和非常规油气资源方面获得了勘探开发突破。随着勘探开发不断深入，重点探区还面临钻井周期较长、机械钻速偏低、井下故障较多、压裂提产效果不理想等一系列技术难点和挑战，需要坚持需求导向，强化关键技术攻关，推广应用成熟技术，大力实施提质、提速、提效、提产的“四提”创新创效工程，为中国石化重点探区的油气高效勘探和效益开发提供技术保障。 

New Progress and Development Suggestions for Drilling and Completion Technologies in Sinopec Key Exploration Areas

In recent years, Sinopec has progressed through a series of technical improvements by means of technical research and field practices around key exploration areas, such as the Shunbei, Sichuan-Chongqing, and Ordos areas, etc. It has preliminarily formed key technologies for drilling and completion of ultra-deep wells of 8,000–9,000 m in Shunbei, key technologies for drilling and completion of shale gas wells in Sichuan and Chongqing, key technologies for marine carbonate rocks drilling in Sichuan, and key technologies for low cost drilling and completion of tight gas wells in Ordos Basin, North China. These endeavors support Sinopec’s exploration and development breakthroughs in ultra-deep oil and gas, marine carbonate oil and gas, and unconventional oil and gas resources. As exploration and development continues in increasingly deeper operations, a series of new technical problems and challenges in the key exploration areas emerges. They include the long drilling cycle, the low ROP, frequent downhole failures, and a suboptimal fracturing effect. Therefore, it is necessary to adhere to the required orientation, promote the application of mature technologies, strengthen the key technology research and vigorously implement the “quality, speed, efficiency and production improvement-focused” innovation and efficiency project, so as to provide technical supports for efficient exploration and benefit development in Sinopec key exploration areas.