Removal-of-one-casing-string-from-well-architecture-projected-to-save-tullow-oil-4m-per-well PDF 2
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Challenge<br>Tullow Oil in West Africa wanted to deploy a lighter well architecture for their<br>upcoming drilling campaign, including six low reach-out wells. The lighter<br>architecture would remove the standard surface casing and run a combined<br>surface/technical casing after the conductor pipe had been jetted in place.<br>The operator had concerns that, should there be cement shortfall and if the<br>conductor pipe is unable to support the axial load, the loads applied to this<br>casing string would exceed the design factor of the casing due to the high<br>bending stresses generated from excessive buckling.
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Removal-of-one-casing-string-from-well-architecture-projected-to-save-tullow-oil-4m-per-well PDF 2
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