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In traditional drilling, efficiency losses and challenges in harsh drilling environments have long been intractable issues, with sudden drops in ROP and borehole degradation becoming an unspoken 'norm' in the industry. Leveraging its self-developed MWD technology and cross-motor wireless communication technology, Liuhe Greatness has achieved deep interoperability with Halliburton’s iCruise platform, introducing the Pangolin Rotary Steerable System. The advent of Pangolin has shattered this entrenched perception, with its automation capabilities encompassing:
★ Remote monitoring phase;
★ Remote diagnostics with anomaly alerts;
★ Automatic calculation of toolface/build-up force parameters and provision of control recommendations to engineers;
★ Automatic command issuance – requiring manual approval;
★ Automatic command issuance – operating per preset KPIs, reverting to manual interface if KPIs are exceeded.
Pangolin’s autonomous cruise navigation technology transmits commands via the MWD. The RSS controls toolface by extending ribs to push against the upper/lower borehole wall, enabling inclination building or dropping. Its dynamic control precision achieves inclination ±0.1° and azimuth ±1°, effectively equipping drilling tools with 'precision eyes' to transform trajectory control from ambiguity to clarity.
During a recent operation in the Su-5 Block, the well’s inclination increased from 0.48° to 31.34°, and azimuth from 0° to 25.76°. Comparing MWD vs. RSS inclination data and MWD vs. RSS magnetic azimuth data, the curves are nearly identical. Additionally, the system achieved a single-run footage of 2,221 meters in 5.4 days, saving 1.1 days compared to offset wells in the same interval and boosting ROP by 30% – a testament to the flawless application of innovative technology.
Moreover, Pangolin breaks data barriers between devices through cross-motor wireless transmission technology. With a tool length of 8.8 meters from the motor to the drill bit (shortening the zero length by nearly 20 meters), the safety and operational efficiency of the overall BHA are enhanced. Here, MWD sends commands to RSS by adjusting RPM or flow rate, while RSS uploads steering parameters to MWD. During the operation, a total of 24 commands were issued, averaging once every 5 minutes with a 100% success rate.
The successful application of Pangolin represents not only a breakthrough in a single piece of equipment but also a comprehensive demonstration of Liuhe Greatness’s system integration capabilities, engineering service capabilities, and technological innovation capabilities. As a model of deep integration between domestic technologies and internationally advanced platforms, it signifies our transition from 'following' to 'paralleling' and even 'leading' in the field of high-end drilling tools.
