introduction-to-wellbore-positioning-r10-2026

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− 𝑐𝑜𝑠𝐼. 𝑠𝑖𝑛𝐴 𝑚 𝑐𝑜𝑠𝛼 + 𝑐𝑜𝑠𝐴 𝑚 𝑠𝑖𝑛𝛼 𝐵𝑐𝑜𝑠𝛩. (1 − 𝑠𝑖𝑛 2 𝐼. 𝑠𝑖𝑛 2 𝐴 𝑚 )

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MBIY Magnetometer bias y-axis when axial interference correction applied. MSIX Magnetometer scalefactor x-axis when axial interference correction applied. MSIY Magnetometer scalefactor y-axis when axial interference correction applied.

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− (𝑐𝑜𝑠𝐼. 𝑐𝑜𝑠𝐴 𝑚 𝑠𝑖𝑛𝛼 − 𝑡𝑎𝑛𝛩. 𝑠𝑖𝑛𝐼. 𝑠𝑖𝑛𝛼 + 𝑠𝑖𝑛𝐴 𝑚 𝑐𝑜𝑠𝛼)(𝑐𝑜𝑠𝐼. 𝑠𝑖𝑛𝐴 𝑚 𝑠𝑖𝑛𝛼 − 𝑐𝑜𝑠𝐴 𝑚 𝑐𝑜𝑠𝛼) (1−𝑠𝑖𝑛 2 𝐼. 𝑠𝑖𝑛 2 𝐴 𝑚 )

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− (𝑐𝑜𝑠𝐼. 𝑐𝑜𝑠𝐴 𝑚 𝑐𝑜𝑠𝛼 − 𝑡𝑎𝑛𝛩. 𝑠𝑖𝑛𝐼. 𝑐𝑜𝑠𝛼 + 𝑠𝑖𝑛𝐴 𝑚 𝑠𝑖𝑛𝛼)(𝑐𝑜𝑠𝐼. 𝑠𝑖𝑛𝐴 𝑚 𝑐𝑜𝑠𝛼 + 𝑐𝑜𝑠𝐴 𝑚 𝑠𝑖𝑛𝛼) (1−𝑠𝑖𝑛 2 𝐼. 𝑠𝑖𝑛 2 𝐴 𝑚 )

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