Synthesis and Evaluation of Novel Graphene Oxide-Based Comb-Polymer Viscosity Reducer for Heavy Oil
Tao Z. Sarsenbekuly B. Kang W. Wu W. Zhang G. Yang H. Tian Y. Wang Y. Guo S. Liu D.
5 February 2026American Chemical Society
Energy and Fuels
2026#40Issue 52489 - 2500 pp.
To tackle the challenges of high viscosity, poor fluidity, and low recovery rates in heavy oil, a novel comb-like polymer viscosity reducer (GO-Z) based on nanographene oxide (GO) was developed. GO was first functionalized with a silane coupling agent and then grafted with long-chain alkyl (C16DMAAC) and polyether (APEG-8) groups. The results show that GO-Z exhibited superior emulsification, dispersion, and viscosity reduction properties under microagitation conditions (simulating the low-shear conditions of real reservoirs), achieving over 94% viscosity reduction at a concentration of 0.3 wt %. Physical simulation flooding experiments further demonstrated that GO-Z effectively improved heavy oil recovery at various injection rates, with the highest increase reaching 11.61%. This study opens up a clear and promising path for the application of functionalized GO in the emulsification and viscosity reduction of heavy oil cold production.
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School of Energy and Petroleum Industry, Kazakh-British Technical University, Almaty, 050000, Kazakhstan
Ningbo Fengcheng Advanced Energy Materials Research Institute Co., Ltd., Ningbo, 315000, China
School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, 266580, China
Shandong Lite Nano New Materials Co., Ltd., Jining, 272000, China
Sichuan Wewodon Petroleum Technology Co., Ltd., Deyang, 272000, China
School of Energy and Petroleum Industry
Ningbo Fengcheng Advanced Energy Materials Research Institute Co.
School of Petroleum Engineering
Shandong Lite Nano New Materials Co.
Sichuan Wewodon Petroleum Technology Co.
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Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026