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Wellbore Stability through Novel Catechol-Chitosan Biopolymer Encapsulator-Based Drilling Mud

The problem of wellbore stability has a marked impact on oil and gas exploration and development in the process of drilling. Marine mussel proteins can adhere and encapsulate firmly on deep-water rocks, providing inspiration for solving borehole stability problem and this ability comes from catechol...

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Autores principales: Tang, Zhichuan, Qiu, Zhengsong, Zhong, Hanyi, Kang, Yujie, Guo, Baoyu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9141550/
https://www.ncbi.nlm.nih.gov/pubmed/35621605
http://dx.doi.org/10.3390/gels8050307
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author Tang, Zhichuan
Qiu, Zhengsong
Zhong, Hanyi
Kang, Yujie
Guo, Baoyu
author_facet Tang, Zhichuan
Qiu, Zhengsong
Zhong, Hanyi
Kang, Yujie
Guo, Baoyu
author_sort Tang, Zhichuan
collection PubMed
description The problem of wellbore stability has a marked impact on oil and gas exploration and development in the process of drilling. Marine mussel proteins can adhere and encapsulate firmly on deep-water rocks, providing inspiration for solving borehole stability problem and this ability comes from catechol groups. In this paper, a novel biopolymer was synthesized with chitosan and catechol (named “SDGB”) by Schiff base-reduction reaction, was developed as an encapsulator in water-based drilling fluids (WBDF). In addition, the chemical enhancing wellbore stability performance of different encapsulators were investigated and compared. The results showed that there were aromatic ring structure, amines, and catechol groups in catechol-chitosan biopolymer molecule. The high shale recovery rate demonstrated its strong shale inhibition performance. The rock treated by catechol-chitosan biopolymer had higher tension shear strength and uniaxial compression strength than others, which indicates that it can effectively strengthen the rock and bind loose minerals in micro-pore and micro-fracture of rock samples. The rheological and filtration property of the WBDF containing catechol-chitosan biopolymer is stable before and after 130 °C/16 h hot rolling, demonstrating its good compatibility with other WBDF agents. Moreover, SDGB could chelate with metal ions, forming a stable covalent bond, which plays an important role in adhesiveness, inhibition, and blockage.
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spelling pubmed-91415502022-05-28 Wellbore Stability through Novel Catechol-Chitosan Biopolymer Encapsulator-Based Drilling Mud Tang, Zhichuan Qiu, Zhengsong Zhong, Hanyi Kang, Yujie Guo, Baoyu Gels Article The problem of wellbore stability has a marked impact on oil and gas exploration and development in the process of drilling. Marine mussel proteins can adhere and encapsulate firmly on deep-water rocks, providing inspiration for solving borehole stability problem and this ability comes from catechol groups. In this paper, a novel biopolymer was synthesized with chitosan and catechol (named “SDGB”) by Schiff base-reduction reaction, was developed as an encapsulator in water-based drilling fluids (WBDF). In addition, the chemical enhancing wellbore stability performance of different encapsulators were investigated and compared. The results showed that there were aromatic ring structure, amines, and catechol groups in catechol-chitosan biopolymer molecule. The high shale recovery rate demonstrated its strong shale inhibition performance. The rock treated by catechol-chitosan biopolymer had higher tension shear strength and uniaxial compression strength than others, which indicates that it can effectively strengthen the rock and bind loose minerals in micro-pore and micro-fracture of rock samples. The rheological and filtration property of the WBDF containing catechol-chitosan biopolymer is stable before and after 130 °C/16 h hot rolling, demonstrating its good compatibility with other WBDF agents. Moreover, SDGB could chelate with metal ions, forming a stable covalent bond, which plays an important role in adhesiveness, inhibition, and blockage. MDPI 2022-05-16 /pmc/articles/PMC9141550/ /pubmed/35621605 http://dx.doi.org/10.3390/gels8050307 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Tang, Zhichuan
Qiu, Zhengsong
Zhong, Hanyi
Kang, Yujie
Guo, Baoyu
Wellbore Stability through Novel Catechol-Chitosan Biopolymer Encapsulator-Based Drilling Mud
title Wellbore Stability through Novel Catechol-Chitosan Biopolymer Encapsulator-Based Drilling Mud
title_full Wellbore Stability through Novel Catechol-Chitosan Biopolymer Encapsulator-Based Drilling Mud
title_fullStr Wellbore Stability through Novel Catechol-Chitosan Biopolymer Encapsulator-Based Drilling Mud
title_full_unstemmed Wellbore Stability through Novel Catechol-Chitosan Biopolymer Encapsulator-Based Drilling Mud
title_short Wellbore Stability through Novel Catechol-Chitosan Biopolymer Encapsulator-Based Drilling Mud
title_sort wellbore stability through novel catechol-chitosan biopolymer encapsulator-based drilling mud
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9141550/
https://www.ncbi.nlm.nih.gov/pubmed/35621605
http://dx.doi.org/10.3390/gels8050307
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