Curious Case of Carbonate Wettability

Curious Case of Carbonate Wettability

Wednesday 13th December 2017

Social gathering starts at 5:00PM

Presentation starts at 5:30PM

Elucidating the mechanisms that control the wettability of mineral surfaces is an important part of understanding a wide range of phenomena such as bio-mineralization, diagenesis, colloid aggregation, contaminant remediation, and enhanced oil recovery. In petroleum reservoirs, rocks wettability plays a vital role in affecting the fluid distribution and consequently multiphase flow and transport. Carbonate rocks are a class of sedimentary rocks composed primarily of carbonate minerals, including calcite or aragonite and dolomite crystals. However, the wettability properties are determined by the atomic interactions at the solid/liquid interface. To gain more insight into the atomic level interaction, we need to rely on the quantum physics simulation. By focusing on fundamental interaction of multiple liquid layers on solid surface, we are not only able to predict the wettability of solid surface for different liquids but also able to observe a wider range of wettability alteration from more hydrophilic to less hydrophilic on single crystal of calcite surface under controlled environmental and reservoir conditions. A unique feature of this approach lies in its capability of capturing the interactions among various polar fluid molecules and solid surface ions, particularly their charge density difference distributions. Moreover, this approach provides insightful and quantitative predictions of complicated surface wettability alteration problems and wetting behaviors of liquid/liquid/solid triphase systems.

Currently Dr. Chun-Yu Lu & Dr. Aikifa Raza are Post-Doctoral Researchers in the Department of mechanical and Materials Engineering, Masdar Institute of Science and Technology, Abu Dhabi, UAE.

Dr. Aikifa major area of focus is the fabrication of anti-fouling materials and to study and develop the polymers with varying wettability to be used for 3D printing. She did her Ph.D. in Materials Sciences with major focus on fabrication and modification of nanofibrous membranes and aerogels via electrospinning using novel chemically synthesized low surface energy materials to make anti wetting membranes for water treatment.

Dr. Chun-Yu Lu received his Ph.D. degree in the department of Physics at the National Taiwan University, Taiwan in 2011. Currently, he is working as a post-doctoral research fellow at Masdar Institute, Abu Dhabi. His research interests include Quantum simulation of interfacial phenomena, plasmonics, solar absorber, and optical simulations. Previously, he worked as a process integration engineer in the Taiwan Semiconductor Manufacturing Company (TSMC), Taiwan.

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