Development and Application of Tricone Roller Bit for High-Temperature Geothermal Wells

In the vast stage of energy development and utilization, geothermal resources, with their clean and renewable characteristics, are gradually becoming an important part of the global energy structure transformation. However, the exploration and development of deep geothermal resources, especially the drilling operations of high-temperature geothermal wells, face unprecedented challenges. The high temperature, high pressure, and complex geological conditions of deep strata place extremely high demands on drilling tools. In this context, GREAT, with its deep industry foundation and technological innovation, provides tricone roller bit that is suitable for high-temperature geothermal well environments, injecting new vitality into geothermal resource development.

GREAT: Excellence Through Expertise

Since its establishment in 2010, GREAT has been dedicated to the research and processing of steel and diamond materials, achieving significant accomplishments, especially in the fields of petroleum equipment and No-Dig technology. We have internationally advanced production lines for compound turning-milling, five-axis linkage, and high-performance diamond processing, providing the market with various types of drill bits ranging from 3" to 36", as well as rock reamers from 8'' to 72'', covering multiple high-performance products such as PDC bit, tricone roller bit, roller cone bits, and diamond core bits. These products are not only widely used in traditional petroleum exploration fields but also demonstrate strong competitiveness in emerging fields such as geothermal resource development.

Challenges of High-Temperature Geothermal Wells

In the drilling process of high-temperature geothermal wells, tricone roller bit faces extreme tests. The high-temperature environment of deep strata can easily lead to the degradation of drilling material performance, particularly a decrease in the fastening strength of cutting teeth and the drill bit body, resulting in tooth drop issues. This not only severely shortens the service life of the drill bit but also greatly reduces drilling efficiency, increasing operational costs and safety risks. Therefore, how to enhance the fastening strength of tricone roller bit in high-temperature environments has become a critical bottleneck restricting the development of high-temperature geothermal well drilling technology.

Breakthroughs in Fastening Strength Research

Facing this challenge, GREAT, leveraging its strong R&D team and experimental facilities, conducted in-depth research on the fastening strength of tricone roller bit based on experimental analysis and numerical simulation technology. We found that in a high-temperature environment of 180℃, the decline in fastening strength can reach 14.7% to 83.3%, providing an important basis for subsequent improved designs. By optimizing the diameter of cutting teeth, increasing the contact area between tooth holes, and precisely controlling tooth interference, we successfully developed new personalized tricone bit products. These new products not only significantly improve the fastening strength of cutting teeth but also enhance the overall wear resistance and rock-breaking efficiency of the drill bit.

Continuous Innovation in High-Temperature Geothermal Well Drilling Technology

With the continuous growth of global demand for clean energy, the development and utilization of geothermal resources will usher in broader development space. As a core tool in geothermal drilling operations, the performance improvement of tricone roller bit will continue to drive the development of the entire industry. GREAT will continue to uphold the philosophy of "professional, innovative, and excellent," increase R&D investment in high-temperature geothermal well drilling technology, and continuously explore the application of new technologies, new materials, and new processes, contributing to the sustainable development of global geothermal resources.

In summary, the successful development and application of high-temperature geothermal well tricone roller bit are exemplary of the close integration of GREAT technological innovation and market demand. We believe that in future development, GREAT will continue to lead industry trends and provide more efficient and reliable solutions for the exploration and development of geothermal resources.