New technique calculates borehole curvature, torsion

Wellbore curvature and torsion greatly influence the forces applied on the downhole pipe string and its consequent deformation. They serve as the bases for calculating the drag and torque of a pipe string and checking its strength and also serve as indices to evaluate the quality of a well trajectory. Accordingly, curvature and torsion affect well drilling and completion, production, and even workover operations.It’s necessary to accurately calculate and describe the shape of a wellbore trajectory in order to monitor and control it effectively. A wellbore trajectory is a continuous and smooth curve in space, which bends (builds or drops) and turns simultaneously.The industry has rec...

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