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Onshore Advances

At-bit steerable system enables single-trip vertical, curve and lateral drilling in North American shales

Case studies from DJ Basin and Marcellus demonstrate technology’s capability to improve lateral hole quality and ROP for high-DLS wells By Gilles Vié, Schlumberger E&P companies in North American shales face many challenges, including wells with high dogleg severity (DLS) that require high build rates, complex geological formations and wells with increasingly longer laterals. These technical challenges, combined with increased pressure from investors for more capital discipline, have set the stage to really think about how they can align today’s directional drilling (DD) services with their company’s development strategies. With the increased downward pressure on both CAPEX and OPEX costs, these operators must find the optimal balance between the costs of DD service companies and the costs of rig contractors, ...

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Electrically powered, open-platform wired drill pipe technology headed for commercial launch this year

Field tests show system can deliver stable downhole power while communicating at rate of 56 kB/sec during drilling By Ian Silvester, Reelwell Over the years, the drilling sector has experienced generational and innovative technologies. These include M/LWD tools, PDC bits, rotary steerable systems, high-specification drilling rigs and automation. Enabling next-generation drilling technologies by using a powered and wired enabled drill pipe string is arguably the next step-change in drilling performance. However, the market perception surrounding the wired drill pipe has historically centered around reliability and cost issues, alongside the positive benefits the technology can produce. With this in mind, extensive field tests have been carried out on Reelwell’s DualLink technology in Norway and the US. The technology, which is expected ...

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