This paper was prepared for presentation at the 1999 SPE Rocky Mountain Regional Meeting held in Gillette, Wyoming, 15–18 May 1999.

Keywords:
impedance, derivative image, foamed cement, casing and cementing, free pipe, cement and bond evaluation, interpretation, impedance image, ultrasonic tool, upstream oil & gas
Subjects:
Casing and Cementing, Cement and bond evaluation
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1999. Society of Petroleum Engineers
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