The use of electromagnetic-acoustic sensors holds the potential to significantly improve how cement integrity of wells is evaluated. Cemented tubulars provide isolation between the environment and flowing production fluids. Operators in the upstream sector of the oil and gas industry rely on the accuracy of cement-bond logs to make critical decisions that can affect long-term well integrity and the environment. Several downhole conditions, such as thick casings, heavy borehole mud and low-density cement, pose potential problems to the acquisition of representative cement evaluation data.
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