Synthesis and mechanism study of temperature- and salt-resistant amphoteric polyacrylamide with MAPTAC and DTAB as monomers
The failure of thickeners at high temperature results in gelled acid acidification fracturing. To solve the problem, 8 kinds of polymers were synthesized by free radical polymerization of aqueous solution using AM, AMPS, NaAMPS, MAPTAC, DTAB and NVP as raw materials. The polymer was characterized by...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/164798 |
| _version_ | 1811681990579060736 |
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| author | Sui, Yu Cao, Guangsheng Guo, Tianyue Zhang, Zihang Zhang, Zhiqiu Xiao, Zhongmin |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Sui, Yu Cao, Guangsheng Guo, Tianyue Zhang, Zihang Zhang, Zhiqiu Xiao, Zhongmin |
| author_sort | Sui, Yu |
| collection | NTU |
| description | The failure of thickeners at high temperature results in gelled acid acidification fracturing. To solve the problem, 8 kinds of polymers were synthesized by free radical polymerization of aqueous solution using AM, AMPS, NaAMPS, MAPTAC, DTAB and NVP as raw materials. The polymer was characterized by infrared spectroscopy and viscosity-average molecular weight, and the temperature resistance, rheology, salt resistance and shear resistance of the polymer solution were compared, and the mechanism was analyzed. The results show that the viscosity of GTY−2 is 181.52 mPa·s, and the viscosity loss rate is 56.89% at 180 °C and 100 s−1, and its temperature resistance is the best. Meanwhile, the viscosity retention rate of GTY−2 is 84.58% after 160 min shear, showing the strongest shear resistance. The viscosity loss rate of GTY−1 in 20% hydrochloric acid solution is 80.88%, and its acid resistance is stronger than that of GTY−2. Moreover, due to the amphiphilicity of DTAB, the molecular hydration film becomes thicker, and the salt resistance of GTY−2 is lower than that of GTY−1. The experimental results show that GTY−1 and GTY−2 have good temperature resistance, salt resistance, acid resistance and shear resistance, and can be used as thickeners for acid fracturing with thickened acid to improve the effect of acid fracturing under high temperature conditions. |
| first_indexed | 2024-10-01T03:49:43Z |
| format | Journal Article |
| id | ntu-10356/164798 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:49:43Z |
| publishDate | 2023 |
| record_format | dspace |
| spelling | ntu-10356/1647982023-02-15T01:15:02Z Synthesis and mechanism study of temperature- and salt-resistant amphoteric polyacrylamide with MAPTAC and DTAB as monomers Sui, Yu Cao, Guangsheng Guo, Tianyue Zhang, Zihang Zhang, Zhiqiu Xiao, Zhongmin School of Mechanical and Aerospace Engineering Engineering::Mechanical engineering Acid Fracturing Polyacrylamide The failure of thickeners at high temperature results in gelled acid acidification fracturing. To solve the problem, 8 kinds of polymers were synthesized by free radical polymerization of aqueous solution using AM, AMPS, NaAMPS, MAPTAC, DTAB and NVP as raw materials. The polymer was characterized by infrared spectroscopy and viscosity-average molecular weight, and the temperature resistance, rheology, salt resistance and shear resistance of the polymer solution were compared, and the mechanism was analyzed. The results show that the viscosity of GTY−2 is 181.52 mPa·s, and the viscosity loss rate is 56.89% at 180 °C and 100 s−1, and its temperature resistance is the best. Meanwhile, the viscosity retention rate of GTY−2 is 84.58% after 160 min shear, showing the strongest shear resistance. The viscosity loss rate of GTY−1 in 20% hydrochloric acid solution is 80.88%, and its acid resistance is stronger than that of GTY−2. Moreover, due to the amphiphilicity of DTAB, the molecular hydration film becomes thicker, and the salt resistance of GTY−2 is lower than that of GTY−1. The experimental results show that GTY−1 and GTY−2 have good temperature resistance, salt resistance, acid resistance and shear resistance, and can be used as thickeners for acid fracturing with thickened acid to improve the effect of acid fracturing under high temperature conditions. Published version The authors are grateful for the National Natural Science Foundation of China (No. 51574089). 2023-02-15T01:15:01Z 2023-02-15T01:15:01Z 2022 Journal Article Sui, Y., Cao, G., Guo, T., Zhang, Z., Zhang, Z. & Xiao, Z. (2022). Synthesis and mechanism study of temperature- and salt-resistant amphoteric polyacrylamide with MAPTAC and DTAB as monomers. Processes, 10(8), 10081666-. https://dx.doi.org/10.3390/pr10081666 2227-9717 https://hdl.handle.net/10356/164798 10.3390/pr10081666 2-s2.0-85137575873 8 10 10081666 en Processes © 2022 by the authors. 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/). application/pdf |
| spellingShingle | Engineering::Mechanical engineering Acid Fracturing Polyacrylamide Sui, Yu Cao, Guangsheng Guo, Tianyue Zhang, Zihang Zhang, Zhiqiu Xiao, Zhongmin Synthesis and mechanism study of temperature- and salt-resistant amphoteric polyacrylamide with MAPTAC and DTAB as monomers |
| title | Synthesis and mechanism study of temperature- and salt-resistant amphoteric polyacrylamide with MAPTAC and DTAB as monomers |
| title_full | Synthesis and mechanism study of temperature- and salt-resistant amphoteric polyacrylamide with MAPTAC and DTAB as monomers |
| title_fullStr | Synthesis and mechanism study of temperature- and salt-resistant amphoteric polyacrylamide with MAPTAC and DTAB as monomers |
| title_full_unstemmed | Synthesis and mechanism study of temperature- and salt-resistant amphoteric polyacrylamide with MAPTAC and DTAB as monomers |
| title_short | Synthesis and mechanism study of temperature- and salt-resistant amphoteric polyacrylamide with MAPTAC and DTAB as monomers |
| title_sort | synthesis and mechanism study of temperature and salt resistant amphoteric polyacrylamide with maptac and dtab as monomers |
| topic | Engineering::Mechanical engineering Acid Fracturing Polyacrylamide |
| url | https://hdl.handle.net/10356/164798 |
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