MAX-BRIDGE enabled drilling with water-based mud in challenging overbalanced well
Jun 23, 2020
In Oman’s mature Saih Raw field, an operator had historically experienced sloughing shale, downhole losses, and incidents of differential sticking. Due to the low formation pressures found in such fields, there is often only a narrow operating margin between the pore pressure and formation breakdown. The low pressure does not allow for increased drilling fluid density, therefore causing a dilemma over how to address the borehole stability requirements without inducing fractures.
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