Recently, Sinopec Jingwei Company successfully completed operations at the Pan 2-Cepinggeng 54 well and the Chengnan 13-Ping 25 well using its self-developed resistivity tools, marking a new high in the application share of domestically developed resistivity instruments in related operations.

To date, the self-developed tools have achieved a 100% application rate across 135 well operations in the Xinjiang work area, while accounting for over 50% of the 125 well operations in the Shengli work area. Market breakthroughs have also been achieved in the East China, Southwest, and Jianghan work areas, moving from zero application to active deployment.

Given the long-standing reliance of China’s logging market on imported resistivity tools, the Geological Measurement and Control Technology Research Institute of Sinopec Jingwei, together with Shengli Directional Drilling Company, has jointly promoted the independent development and application of domestic tools since 2022, gradually surpassing imported alternatives.

Through coordinated technical efforts, the team systematically optimized logging-while-drilling resistivity instruments. A new-generation AMR tool based on a dual-orthogonal antenna design was developed to enable boundary detection throughout the drilling process. The measurement system was optimized to increase transmission speed by more than 30%, while generator-powered supply was adopted to further reduce the operating cost of MRC instruments. Continuous improvements have significantly enhanced functionality, stability, and cost efficiency, with overall performance surpassing imported FEWD tools and laying a solid foundation for large-scale deployment.

In 2024, the self-developed azimuthal resistivity tools were promoted simultaneously in Xinjiang’s Xinchun Oil Production Plant and Shengli Oilfield’s Linpan and Binnan plants. Their comprehensive performance has been fully recognized by clients, with coverage extended to all operating wells in northern Xinjiang and nearly all oil production plants in Shengli Oilfield. The tools now command a majority market share, effectively replacing imported equipment and significantly reducing service costs. In the Mian 138-6-Xie 105 multilateral horizontal well, the tools supported 40 real-time formation correlations, enabled 27 precise geosteering instructions, ensured four sidetracks succeeded on the first attempt, and saved 105 meters of footage through optimization, achieving a reservoir penetration rate of 93.4% and a high-quality reservoir penetration rate of 83.5%.

Looking ahead, Sinopec Jingwei’s Geological Measurement and Control Technology Research Institute and Shengli Directional Drilling Company plan to develop next-generation high-precision ultra-deep and long-distance resistivity measurement tools and interpretation technologies suited for deeper, hotter, and more complex geological conditions. They aim to raise the overall application share to over 90% within three years, providing strong technical support for high-quality oilfield development and national energy security.