THROUGH-TUBING CASING DEFORMATION AND TUBING ECCENTRICITY IMAGE TOOL FOR WELL INTEGRITY MONITORING AND PLUG-ABANDONMENT
Paper Ref: SPWLA-2021-4045 (full abstract)
Authors : Qinshan Yang, Kuang Qin, Jeff Olson, and Marvin Rourke (GOWell International)
Speaker : Qinshan Yang
Speaker Bio: QinShan Yang serves as a Senior Advisor at GOWell. Dr. Yang has more than eighteen years of experience in the industry. He has worked in various positions for Schlumberger, CNPC, UT Austin, and now at GOWell. Currently, he is the leader and advisor in the field of well integrity, Acoustic/EM tool physics, and DAS/DTS projects. He has published more than twenty technical papers and holds twelve patents. Dr. Yang received Ph.D. degree from the Chinese Academy of Science and his postdoctoral study on the formation evaluation and unconventional reservoir from The University of Texas at Austin. Dr. Yang is an active SPWLA, SPE, and SEG member and involved in volunteering activities.
Abstract: Casing deformation and tubing eccentricity is a concern in the oil and gas industry for safety and operational reasons. Casing deformation or tubing eccentricity originates from various sources such as well completion, corrosion, formation swelling, collapse, salt dome creep, etc. It is important to implement a well-integrity surveillance program covering all of the casing and tubing strings for the full well life-cycle from initial completion to abandonment. However, there has been no effective logging method to evaluate though-tubing the condition of the casing string for deformation and eccentricity.
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