Synthesis and Performance Evaluation of Graphene-Based Comb Polymer Viscosity Reducer

The high viscosity of heavy oil makes it difficult to realize its economic value. Therefore, improving the fluidity of heavy oil can effectively improve the economic benefit of the development of heavy oil resources. Oil-soluble viscosity reducers can utilize functional groups in monomers to break u...

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Main Authors: Zhengdong Xu, Mingjie Li, Yidan Kong, Changjun Long, Yankun Sun, Guohua Liu, Chunhui Yu, Yi Lu, Junpu An, Fan Yang
Format: Article
Language:English
Published: MDPI AG 2023-08-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/16/15/5779
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author Zhengdong Xu
Mingjie Li
Yidan Kong
Changjun Long
Yankun Sun
Guohua Liu
Chunhui Yu
Yi Lu
Junpu An
Fan Yang
author_facet Zhengdong Xu
Mingjie Li
Yidan Kong
Changjun Long
Yankun Sun
Guohua Liu
Chunhui Yu
Yi Lu
Junpu An
Fan Yang
author_sort Zhengdong Xu
collection DOAJ
description The high viscosity of heavy oil makes it difficult to realize its economic value. Therefore, improving the fluidity of heavy oil can effectively improve the economic benefit of the development of heavy oil resources. Oil-soluble viscosity reducers can utilize functional groups in monomers to break up asphaltene aggregates to improve the flow of crude oil. Graphene can be used to insert and split asphaltene aggregates through sliding phenomena and π–π interaction with colloidal asphaltene, thereby improving the fluidity of heavy oil. In this study, a graphene nanocomposite viscosity reducer was synthesized from lipophilic-modified graphene and a polymer viscosity reducer. The net viscosity reduction rate reached 80.0% at 400 ppm. Compared with a polymer viscosity reducer, the viscosity reduction effect of a graphene nanocomposite viscosity reducer was improved by about 7%. Structural characterization of a graphene nanocomposite viscosity reducer was characterized with infrared spectroscopy and a thermogravimetric test. The mechanism of a graphene nanocomposite viscosity reducer splitting asphaltene aggregates was verified with scanning electron microscopy. This study provides a theoretical and practical basis for the research and development of a novel nanocomposite viscosity reducer.
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spelling doaj.art-7cefdfba05dd4e858fc6ca93217b306a2023-11-18T22:52:42ZengMDPI AGEnergies1996-10732023-08-011615577910.3390/en16155779Synthesis and Performance Evaluation of Graphene-Based Comb Polymer Viscosity ReducerZhengdong Xu0Mingjie Li1Yidan Kong2Changjun Long3Yankun Sun4Guohua Liu5Chunhui Yu6Yi Lu7Junpu An8Fan Yang9Engineering Technology Research Institute, PetroChina Huabei Oilfield Company, Renqiu 062552, ChinaState Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, ChinaState Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, ChinaEngineering Technology Research Institute, PetroChina Huabei Oilfield Company, Renqiu 062552, ChinaState Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, ChinaEngineering Technology Research Institute, PetroChina Huabei Oilfield Company, Renqiu 062552, ChinaState Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, ChinaState Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, ChinaState Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, ChinaEngineering Technology Research Institute, PetroChina Huabei Oilfield Company, Renqiu 062552, ChinaThe high viscosity of heavy oil makes it difficult to realize its economic value. Therefore, improving the fluidity of heavy oil can effectively improve the economic benefit of the development of heavy oil resources. Oil-soluble viscosity reducers can utilize functional groups in monomers to break up asphaltene aggregates to improve the flow of crude oil. Graphene can be used to insert and split asphaltene aggregates through sliding phenomena and π–π interaction with colloidal asphaltene, thereby improving the fluidity of heavy oil. In this study, a graphene nanocomposite viscosity reducer was synthesized from lipophilic-modified graphene and a polymer viscosity reducer. The net viscosity reduction rate reached 80.0% at 400 ppm. Compared with a polymer viscosity reducer, the viscosity reduction effect of a graphene nanocomposite viscosity reducer was improved by about 7%. Structural characterization of a graphene nanocomposite viscosity reducer was characterized with infrared spectroscopy and a thermogravimetric test. The mechanism of a graphene nanocomposite viscosity reducer splitting asphaltene aggregates was verified with scanning electron microscopy. This study provides a theoretical and practical basis for the research and development of a novel nanocomposite viscosity reducer.https://www.mdpi.com/1996-1073/16/15/5779heavy oilnanocomposite viscosity reducercomb polymergraphene
spellingShingle Zhengdong Xu
Mingjie Li
Yidan Kong
Changjun Long
Yankun Sun
Guohua Liu
Chunhui Yu
Yi Lu
Junpu An
Fan Yang
Synthesis and Performance Evaluation of Graphene-Based Comb Polymer Viscosity Reducer
Energies
heavy oil
nanocomposite viscosity reducer
comb polymer
graphene
title Synthesis and Performance Evaluation of Graphene-Based Comb Polymer Viscosity Reducer
title_full Synthesis and Performance Evaluation of Graphene-Based Comb Polymer Viscosity Reducer
title_fullStr Synthesis and Performance Evaluation of Graphene-Based Comb Polymer Viscosity Reducer
title_full_unstemmed Synthesis and Performance Evaluation of Graphene-Based Comb Polymer Viscosity Reducer
title_short Synthesis and Performance Evaluation of Graphene-Based Comb Polymer Viscosity Reducer
title_sort synthesis and performance evaluation of graphene based comb polymer viscosity reducer
topic heavy oil
nanocomposite viscosity reducer
comb polymer
graphene
url https://www.mdpi.com/1996-1073/16/15/5779
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