Development Suggestions for Ultra-Deep Well Drilling Practices in the Shunbei Oil and Gas Field

The Shunbei oil and gas field boasts abundant reserves; however, the reservoirs are deeply buried, characterized by ultra-deep depths, high pressure, and extremely high temperatures, making it widely recognized as the 'world's forbidden zone' for drilling. Therefore, the exploration of a series of efficient drilling technologies tailored for the ultra-deep wells in the Shunbei oil and gas field holds significant importance in expediting the efficient development of the oil and gas field. Addressing the five major drilling challenges in the Shunbei oil and gas field, an array of efficient drilling technologies has been developed through years of technical research and practical application. The main components comprise optimization design techniques for wellbore structure, stratified acceleration technology with optimized design for Paleozoic formations, reinforcement technology for complex formations, efficient leak prevention and well cementing technology for leak-prone formations, efficient directional drilling technology for high-temperature reservoirs, and control-type reservoir protection technology. Through the enhancement of integrated geological engineering and the widespread application of mature technologies, as the well depth increases year by year, the drilling cycle has progressively shortened, ensuring the efficient exploration and profitable development of the Shunbei oil and gas field. Emphasis is placed on the continuous improvement of one well controlling multiple factors, as well as the capabilities to safely drill through fractures and handle engineering challenges related to abnormal high pressures. Intensify efforts in key core technology research, such as the temperature resistance performance of tools and materials. Propose to intensify research efforts in the field of Ten thousand meter deep well drilling, focusing on fundamental theories, key technologies, and equipment development. To further advance the exploration and development pace of the Shunbei oil and gas field, ensure the safe completion of wells, and continuously unlock the “Chinese depth”.