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Innovating While Drilling®

New gauge pad design improves PDC bit tracking in horizontal wells

Bit is designed to provide minimal side cutting at low side loads but achieve typical BUR at higher side loads By Reed Spencer, Bradley D. Pierce and Robert E. Grimes, Baker Hughes Thousands of horizontal wells are drilled each year across numerous unconventional reservoirs throughout North America, and the horizontal departures continue to increase to ever-greater lengths. The directional trajectories of these wells are achieved with either conventional bent-motor assemblies or rotary steerable systems (RSS). Polycrystalline diamond compact (PDC) bits are used for the majority of all footage drilled in North America. Directional drillers focus on maintaining the desired wellbore inclination and azimuth, and many wells are intended to track generally straight. Outside forces such as bit walk and formation ...

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Nabors develops MPD Return Flow Pathways procedure to manage non-well control use of rig chokes

Internal Well Control Committee evaluates BOP stack configurations to prevent deviations from best practices By Richard Grayson & Adam Keith, Nabors Shale formations are common drilling targets and frequently present many challenges. Examples include swelling, sloughing, general wellbore instability and natural fractures, which can mask over/underpressured formations. These can be common in high-pressure, high-temperature wells in formations such as the Tuscaloosa Marine shale and Haynesville shale. Further, rotating control devices (RCDs) are becoming more common. They convert an open-loop system into a closed-loop system, providing an additional barrier for safety, as well as environmental benefits like capturing background gas while drilling wells and ensuring it is properly handled or flared. More importantly, however, they also enable managed pressure drilling (MPD). ...

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New GWD tool increases accuracy, reduces risk of drilling into adjacent wells

Gyrodata recently launched the Quest gyro-while-drilling (GWD) tool to help operators to mitigate the risk of collision in complex projects. Its solid-state sensor package means there is no impact from shock and vibration or magnetic interference, allowing for more accurate wellbore placement when drilling in challenging areas such as the Bakken, said Rob Shoup, Vice President Special Projects, Gyrodata, at the 2019 SPE Annual Technical Conference in Calgary, Canada, on 30 September. In this video with DC, Mr Shoup explains the potential for this tool to replace MWD, as well as initial field results. Watch the video for more information.

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Schlumberger launches at-bit steerable system for single-run horizontal wells

Schlumberger has introduced the NeoSteer at-bit steerable system (ABSS) at the 2019 SPE Annual Technical Conference in Calgary, Canada. In this video with DC on 30 September, Ziad Akkaoui, Drilling and Measurements Product Champion, Schlumberger, discusses the capabilities and recent successes of the system. The new system improves horizontal well drilling performance by providing high-dogleg capability and increased rate of penetration in the curve and the lateral. It leverages digital technologies by combining the latest trajectory control algorithms, and machine-learning and data analytics to provide improved planning and execution performance. “The NeoSteer family is a real game-changer for the industry. We have combined cutting structures with steering systems, enabled through digital technology, to drill steeper curves, longer and straighter laterals,” ...

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