Challenges-and-Solutions-for-Accurate-Wellbore-Placement-in-the-Barents-Sea PDF 2
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As development of the Barents Sea continues with new plays such as the Castberg, accurate<br>specification of the local magnetic field is important to reliably infer the orientation of the bottomhole<br>assembly (BHA) in horizontal drilling. Since magnetic fields at high latitudes vary spatially and temporally,<br>one requires both spatial models and a way to capture temporal changes. Large temporal changes in the<br>magnetic field can severly distort measured azimuths and therefore must be corrected for.<br>This study, based on a report written for Petroleumstilsynet (Maus et al., 2017), shows that in regio
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Challenges-and-Solutions-for-Accurate-Wellbore-Placement-in-the-Barents-Sea PDF 2
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