Syntheses of a Hyperbranched Polymer and Its Performance on Enhanced Oil Recovery

A hyperbranched carboxylate-type polymer was synthesized through esterification and carboxymethylation, and its performance on enhanced oil recovery was experimentally evaluated. The optimum condition for esterification was 8 h at 120°C, where 3% PTSA as the catalyst and 9:1 mol ratio of the AB2 int...

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Autores principales:	Sanyuan Qiao, Qingwang Liu, Xian Zhang, Hongchang Che
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	syntheses hyperbranched polymer surfactant core flooding enhanced oil recovery Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/59ec6fbc67f0447a9029c0d741888f64
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spelling	oai:doaj.org-article:59ec6fbc67f0447a9029c0d741888f642021-11-05T13:20:55ZSyntheses of a Hyperbranched Polymer and Its Performance on Enhanced Oil Recovery2296-264610.3389/fchem.2021.738717https://doaj.org/article/59ec6fbc67f0447a9029c0d741888f642021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fchem.2021.738717/fullhttps://doaj.org/toc/2296-2646A hyperbranched carboxylate-type polymer was synthesized through esterification and carboxymethylation, and its performance on enhanced oil recovery was experimentally evaluated. The optimum condition for esterification was 8 h at 120°C, where 3% PTSA as the catalyst and 9:1 mol ratio of the AB2 intermediate and trimethylolpropane were used. The optimum condition for carboxymethylation was 4 h at 80°C. The critical micelle concentration of the hyperbranched polymer was 433.63 mg/L, the Krafft point was 5°C, and the surface tension was lowered to 28 mN/m. In the range of 400–500 mg/L concentration, the adsorption onto the oil sand surface achieved equilibrium, and micellar solubilization reached 600 ml/mol. The interfacial tension can be lowered to a level of 10−2 mN/m by the single use of the hyperbranched polymer, and the value further decreased to a level of 10−3 mN/m while being formulated with sodium dodecylsulfate or NaOH. Oil recovery of water flooding was further enhanced by the single use of a hyperbranched polymer or the combination of hyperbranched polymer/sodium dodecylsulfate. The latter exhibited more prosperous advantages in low-permeability reservoirs.Sanyuan QiaoQingwang LiuXian ZhangHongchang CheFrontiers Media S.A.articlesyntheseshyperbranched polymersurfactantcore floodingenhanced oil recoveryChemistryQD1-999ENFrontiers in Chemistry, Vol 9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	syntheses hyperbranched polymer surfactant core flooding enhanced oil recovery Chemistry QD1-999
spellingShingle	syntheses hyperbranched polymer surfactant core flooding enhanced oil recovery Chemistry QD1-999 Sanyuan Qiao Qingwang Liu Xian Zhang Hongchang Che Syntheses of a Hyperbranched Polymer and Its Performance on Enhanced Oil Recovery
description	A hyperbranched carboxylate-type polymer was synthesized through esterification and carboxymethylation, and its performance on enhanced oil recovery was experimentally evaluated. The optimum condition for esterification was 8 h at 120°C, where 3% PTSA as the catalyst and 9:1 mol ratio of the AB2 intermediate and trimethylolpropane were used. The optimum condition for carboxymethylation was 4 h at 80°C. The critical micelle concentration of the hyperbranched polymer was 433.63 mg/L, the Krafft point was 5°C, and the surface tension was lowered to 28 mN/m. In the range of 400–500 mg/L concentration, the adsorption onto the oil sand surface achieved equilibrium, and micellar solubilization reached 600 ml/mol. The interfacial tension can be lowered to a level of 10−2 mN/m by the single use of the hyperbranched polymer, and the value further decreased to a level of 10−3 mN/m while being formulated with sodium dodecylsulfate or NaOH. Oil recovery of water flooding was further enhanced by the single use of a hyperbranched polymer or the combination of hyperbranched polymer/sodium dodecylsulfate. The latter exhibited more prosperous advantages in low-permeability reservoirs.
format	article
author	Sanyuan Qiao Qingwang Liu Xian Zhang Hongchang Che
author_facet	Sanyuan Qiao Qingwang Liu Xian Zhang Hongchang Che
author_sort	Sanyuan Qiao
title	Syntheses of a Hyperbranched Polymer and Its Performance on Enhanced Oil Recovery
title_short	Syntheses of a Hyperbranched Polymer and Its Performance on Enhanced Oil Recovery
title_full	Syntheses of a Hyperbranched Polymer and Its Performance on Enhanced Oil Recovery
title_fullStr	Syntheses of a Hyperbranched Polymer and Its Performance on Enhanced Oil Recovery
title_full_unstemmed	Syntheses of a Hyperbranched Polymer and Its Performance on Enhanced Oil Recovery
title_sort	syntheses of a hyperbranched polymer and its performance on enhanced oil recovery
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/59ec6fbc67f0447a9029c0d741888f64
work_keys_str_mv	AT sanyuanqiao synthesesofahyperbranchedpolymeranditsperformanceonenhancedoilrecovery AT qingwangliu synthesesofahyperbranchedpolymeranditsperformanceonenhancedoilrecovery AT xianzhang synthesesofahyperbranchedpolymeranditsperformanceonenhancedoilrecovery AT hongchangche synthesesofahyperbranchedpolymeranditsperformanceonenhancedoilrecovery
_version_	1718444227733487616

Syntheses of a Hyperbranched Polymer and Its Performance on Enhanced Oil Recovery

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