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Cement Bond Log & Its Interpretation | TOP Energy Training

This presentation by Dr. Arash Dahi Taleghani was delivered as part of an online TOPCORP symposium, "Hot Topics", for oil and gas inspectors broadcast through Penn State Extension on October 7, 2020. #cementbondlogs, #naturalgas, #wellcement - YOU'LL LEARN ABOUT — 0:00 - Introducing Dr. Arash Dahi Taleghani 2:55 - Well Integrity & Barriers 6:45 - Example of Well Barriers 8:58 - Purpose of Cementing 14:52 - Reasons for Performing CBL 20:17 - Different Scenarios for Poor Cementing 22:54 - Evaluation Techniques 29:02 - Noise Logging 30:31 - Acoustic Logging 33:32 - Cement Bond Logging (CBL) 34:20 - Traditional Bond Tool 36:48 - Segmented Bond Tool (SBT) 38:02 - Radial Analysis Bond Log (RAL) 38:30 - Traditional Bond Tool Example 39:04 - Sonic Fundamentals 39:33 - Theory of Measurement Amplitude & Travel Time 41:22 - CBL, An Amplitude Measurement 41:46 - Amplitude Signals vs. Pipe Size of "free" pipe 42:09 - How much cement do I have for the amplitude in question? 42:24 - Variable Density Log (VDL) 42:52 - Sonic Fundamentals - VDL 44:02 - CBL - Parameters Measured 45:00 - Variable Density Log (VDL) 46:06 - Examples 54:42 Questions **ABOUT TOPCORP** TOPCORP is a comprehensive, practical training program based on scientific principles for state and federal regulators, field inspectors, and policymakers to better understand the technologies employed in conventional and shale oil and gas field operations. There is no other forum, gathering, or system providing this information to oil and gas regulators and inspectors in the United States. **TOP ENERGY EDUCATION** Our educational consortium is composed of Colorado School of Mines, The Pennsylvania State University, and The University of Texas at Austin. Together, we design and create online courses for oil and gas professionals, focusing on the fundamental technology, science, and engineering of oil and gas operations.