DOI: 10.1002/jsde.70090 ISSN: 1097-3958
Novel Cardanol‐Based Viscosity Reducer for High Viscosity and High Permeability Reservoir Through Mechanism Study
Jiwen Wu, Luyu Chen, Lin Zhao, Guodong Chang, Huimin Ye, Yirong Feng, Shuangfei Zhao, Lei Shen, Yuguang Li, Wei He, Yingcheng LiABSTRACT
In this study, a novel cardanol‐based viscosity reducer was developed through learning from viscosity reducers derived from petroleum. Under the mechanism study through visual flooding experiment and computational fluid dynamics (CFD) simulation, the optimal petrochemical dodecyl dimethyl betaine (BS‐12) stood out, and oil recovery efficiency (EOR) could be as high as 30.7%. Based on the developed empirical formula and structural analysis of BS‐12, a completely new molecular structure was designed and applied in the visual flooding experiment, exhibiting comparable viscosity reduction performance and oil recovery efficiency.