中国石油网消息：5月9日获悉，川庆钻探自主研发的CG STEER 625-175旋转导向系统首次在现场试验中获得成功，该关键仪器的研制突破，标志着我国在应对非常规油气瘦身井上有了新的技术利器。

China Oil News: On May 9th, it was learned that the CG STEER 625-175 rotary steering system independently developed by Chuanqing Drilling has achieved success in its first on-site test. The breakthrough in the development of this key instrument marks that China has acquired a new technological tool for dealing with unconventional oil and gas slim-hole wells.

此次试验在威217H24-7井进行，625型旋导系统在一趟钻中完成进尺909米，单趟循环工作时间长达184小时，最高循环温度达到132摄氏度。

This test was conducted in Well W217H24-7. The 625 type rotary steering system completed a drilling depth of 909 meters in one drilling run, with a single drilling cycle working time of up to 184 hours, and the maximum circulating temperature reached 132 degrees Celsius.

与使用常规工具作业的同井眼尺寸邻井相比，造斜段平均机械钻速大幅提升95.84%，钻井周期缩短六成，显著降低了单井钻井成本，缩短了建井周期，提升了开发效益。

Compared with adjacent wells with the same wellbore size that use conventional tools for operations, the average mechanical drilling rate in the deviated section has significantly increased by 95.84%, the drilling cycle has been shortened by 60%, which has greatly reduced the single-well drilling cost, shortened the well construction period, and improved the development efficiency.

这一成果不仅填补了国产小井眼旋转导向系统在深层页岩气瘦身井领域的应用空白，更为小井眼规模化推广提供了有力支撑。

This achievement not only fills the gap in the application of domestic small-diameter wellbore rotating steering systems in the field of slim wells for deep shale gas extraction, but also provides strong support for the large-scale promotion of small-diameter wellbore technology.

随着深层页岩气效益开发步伐的加快，市面上缺乏适配7.5英寸井眼的旋转导向系统，这一技术空白成为制约行业发展的瓶颈。

With the accelerated pace of efficient exploitation of deep shale gas, there is a shortage of rotary steering systems suitable for 7.5-inch wellbores on the market. This technological gap has become a bottleneck restricting the development of the industry.

川庆钻探主动出击，将研发适配小井眼的旋转导向系统作为重要任务，组建项目专班进行研发，通过统筹人财物资源、建立定期督办等协调机制，半年时间内，CG STEER 625-175旋转导向系统就走完了从研发到第一口井试验成功的全过程，大大超乎业内专家“至少要花两年才能完成”的预期。

Chuanqing Drilling took the initiative and regarded developing a rotational steering system suitable for small-diameter wells as a key task. They formed a project team to conduct the research and development. By coordinating resources such as personnel, finances, and materials, and establishing regular supervision and coordination mechanisms, the CG STEER 625-175 rotational steering system completed the entire process from research and development to the successful trial in the first well within half a year. This far exceeded the expectations of industry experts who said it would take at least two years to complete.

据悉，川庆钻探目前正聚焦深层页岩气工程技术痛点，持续深化小井眼、耐高温、高造斜率等关键技术的迭代。

It is reported that Chuanqing Drilling is currently focusing on addressing the technical pain points of deep shale gas engineering, and continuously deepening the iteration of key technologies such as small wellbore, high-temperature resistance, and high inclination angle.