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𝗠𝗮𝘆 𝟲, 𝟭𝟱:𝟬𝟬 𝗚𝗠𝗧
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𝗔𝗯𝘀𝘁𝗿𝗮𝗰𝘁:
Deep geothermal doublets, particularly in clastic reservoirs like the Albian in the Paris Basin, have faced significant challenges with injectivity loss due to fine particle migration, compromising their sustainability and efficiency. Traditional remediation methods, such as enhanced filtration and periodic backflow cleaning, have been only partially effective. This study explores an innovative preventive approach using acrylamide-based copolymers to mitigate fine particle migration by forming a protective film on reservoir rock surfaces. Laboratory experiments demonstrated the polymer's efficacy under high flow rates, preventing fine particle migration, maintaining permeability, and ensuring the sand pack's stability. These promising findings suggest that polymer treatment could enhance the sustainability and performance of geothermal doublets, offering a practical solution to a long-standing challenge in geothermal energy applications.
𝗕𝗶𝗼:
Nicolas Gaillard graduated from CPE Lyon (Chemical Engineering School,1998) and holds a PhD in Polymer Chemistry (University of Lyon, 2003). He joined SNF in 2003 to develop associative polymers for EOR. In 2006 he became Oil and Gas Lab Coordinator. He acquired experience from many different projects worldwide (Oman, Canada, China, North Sea, Middle East, South America). In April 2020, he joined POWELTEC as Technical Adviser and Sales Manager. He is author or co-author of 25 publications and 7 patents.