US Patent Issued to University of Electronic Science and Technology of China on July 1 for "Reverse time migration imaging method for cased-hole structure based on ultrasonic pitch-catch measurement" (Chinese Inventors)

ALEXANDRIA, Va., July 3 -- United States Patent no. 12,345,150, issued on July 1, was assigned to University of Electronic Science and Technology of China (Chengdu, China).

"Reverse time migration imaging method for cased-hole structure based on ultrasonic pitch-catch measurement" was invented by Hua Wang (Chengdu, China) and Meng Li (Chengdu, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A reverse time migration imaging method for cased-hole based on ultrasonic pitch-catch measurement, including: calculating a theoretical dispersion curve; expanding original Lamb data of two receivers into array waveform data based on phase-shift interpolation; establishing a two-dimensional migration velocity model ...