Fabrication of a state of the art mesh lock polymer for water based solid free drilling fluid

Abstract Polymers are used widely in various kinds of drilling fluid to maintain the proper rheological properties. However, most of them are not available for high-temperature or salt solutions due to poor temperature and salt resistance. To ameliorate the temperature and salt resistance of polymer...

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Autores principales:	Chaoqun Wang, Wei Ding
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/434bf96e4b8d435d86dd828d43a340ca
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spelling	oai:doaj.org-article:434bf96e4b8d435d86dd828d43a340ca2021-12-02T17:27:02ZFabrication of a state of the art mesh lock polymer for water based solid free drilling fluid10.1038/s41598-021-98379-w2045-2322https://doaj.org/article/434bf96e4b8d435d86dd828d43a340ca2021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-98379-whttps://doaj.org/toc/2045-2322Abstract Polymers are used widely in various kinds of drilling fluid to maintain the proper rheological properties. However, most of them are not available for high-temperature or salt solutions due to poor temperature and salt resistance. To ameliorate the temperature and salt resistance of polymer used in the solid-free water-based drilling fluid, a novel polymer with a kind of "Mesh-Lock" reinforced network cross structure, named PLY-F [main monomer acrylic acid (AA), acrylamide (AM), functional monomers 2-acrylamide-2-methylpropanesulfonic acid (AMPS) N-vinylpyrrolidone (NVP) and C16DMAAC] were prepared through free radical polymerization of an aqueous solution of organic cross-linking agent pentaerythritol triallyl ether (PTE) as a cross-linking system, Potassium persulfate (KPS) and sodium bisulfite as the initiator for the first time. The surface morphology, crosslinking architecture and temperature and salt resistance of the PLY-F were fully characterized with several means including SEM, FT-IR, 13CNMR, dynamic rheology, and long-term thermal stability. The SEM observation indicated that the PLY-F exhibits a regular “Mesh-Lock” reinforced network cross structure. FT-IR, 13CNMR analysis indicated that the characteristic functional groups of each monomer such as AM, AA, AMPS and NVP were all together in the polymer. The results show that the apparent viscosity retention rate of the PLY-F in the potassium formate solution (with a density of 1.3 g/cm3) was more than 80% after heat rolling for 72 h at 200 °C and the plastic viscosity retention rate reached 90.3%. Moreover, the salt resistance of the polymer can reach the density of 1.4 g/cm3 (potassium formate solution) under 200 °C and the temperature resistance can reach 220 °C under the density of 1.3 g/cm3 (potassium formate solution). Besides, the PLY-F still has good rheological properties in other saturated solutions (NaCl, HCOONa) under 210 °C.Chaoqun WangWei DingNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Chaoqun Wang Wei Ding Fabrication of a state of the art mesh lock polymer for water based solid free drilling fluid
description	Abstract Polymers are used widely in various kinds of drilling fluid to maintain the proper rheological properties. However, most of them are not available for high-temperature or salt solutions due to poor temperature and salt resistance. To ameliorate the temperature and salt resistance of polymer used in the solid-free water-based drilling fluid, a novel polymer with a kind of "Mesh-Lock" reinforced network cross structure, named PLY-F [main monomer acrylic acid (AA), acrylamide (AM), functional monomers 2-acrylamide-2-methylpropanesulfonic acid (AMPS) N-vinylpyrrolidone (NVP) and C16DMAAC] were prepared through free radical polymerization of an aqueous solution of organic cross-linking agent pentaerythritol triallyl ether (PTE) as a cross-linking system, Potassium persulfate (KPS) and sodium bisulfite as the initiator for the first time. The surface morphology, crosslinking architecture and temperature and salt resistance of the PLY-F were fully characterized with several means including SEM, FT-IR, 13CNMR, dynamic rheology, and long-term thermal stability. The SEM observation indicated that the PLY-F exhibits a regular “Mesh-Lock” reinforced network cross structure. FT-IR, 13CNMR analysis indicated that the characteristic functional groups of each monomer such as AM, AA, AMPS and NVP were all together in the polymer. The results show that the apparent viscosity retention rate of the PLY-F in the potassium formate solution (with a density of 1.3 g/cm3) was more than 80% after heat rolling for 72 h at 200 °C and the plastic viscosity retention rate reached 90.3%. Moreover, the salt resistance of the polymer can reach the density of 1.4 g/cm3 (potassium formate solution) under 200 °C and the temperature resistance can reach 220 °C under the density of 1.3 g/cm3 (potassium formate solution). Besides, the PLY-F still has good rheological properties in other saturated solutions (NaCl, HCOONa) under 210 °C.
format	article
author	Chaoqun Wang Wei Ding
author_facet	Chaoqun Wang Wei Ding
author_sort	Chaoqun Wang
title	Fabrication of a state of the art mesh lock polymer for water based solid free drilling fluid
title_short	Fabrication of a state of the art mesh lock polymer for water based solid free drilling fluid
title_full	Fabrication of a state of the art mesh lock polymer for water based solid free drilling fluid
title_fullStr	Fabrication of a state of the art mesh lock polymer for water based solid free drilling fluid
title_full_unstemmed	Fabrication of a state of the art mesh lock polymer for water based solid free drilling fluid
title_sort	fabrication of a state of the art mesh lock polymer for water based solid free drilling fluid
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/434bf96e4b8d435d86dd828d43a340ca
work_keys_str_mv	AT chaoqunwang fabricationofastateoftheartmeshlockpolymerforwaterbasedsolidfreedrillingfluid AT weiding fabricationofastateoftheartmeshlockpolymerforwaterbasedsolidfreedrillingfluid
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Fabrication of a state of the art mesh lock polymer for water based solid free drilling fluid

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