New Zwitterionic Polymer as a Highly Effective Salt- and Calcium-Resistant Fluid Loss Reducer in Water-Based Drilling Fluids
To control the filtration loss of drilling fluids in salt–gypsum formations, a novel type of zwitterionic polymer gel (DNDAP) was synthesized by free radical polymerization, which was used as a salt- and calcium-resistant fluid loss reducer for water-based drilling fluids (WBDF). DNDAP was prepared...
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| Format: | Article |
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MDPI AG
2022-11-01
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| Series: | Gels |
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| Online Access: | https://www.mdpi.com/2310-2861/8/11/735 |
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| author | Luman Liu Jinsheng Sun Ren Wang Fan Liu Shifeng Gao Jie Yang Han Ren Yuanzhi Qu Rongchao Cheng Yuan Geng Zhenbo Feng |
| author_facet | Luman Liu Jinsheng Sun Ren Wang Fan Liu Shifeng Gao Jie Yang Han Ren Yuanzhi Qu Rongchao Cheng Yuan Geng Zhenbo Feng |
| author_sort | Luman Liu |
| collection | DOAJ |
| description | To control the filtration loss of drilling fluids in salt–gypsum formations, a novel type of zwitterionic polymer gel (DNDAP) was synthesized by free radical polymerization, which was used as a salt- and calcium-resistant fluid loss reducer for water-based drilling fluids (WBDF). DNDAP was prepared with N, N-dimethylacrylamide (DMAA), N-vinylpyrrolidone (NVP), Diallyl dimethyl ammonium chloride (DMDAAC), 2-acrylamide-2-methylpropaneonic acid (AMPS), and isopentenol polyether (TPEG) as raw materials. Fourier transform infrared spectroscopy (FT-IR) and proton nuclear magnetic resonance (<sup>1</sup>H-NMR) were used to characterize the composition and structure of the DNDAP copolymer. The thermal stability of DNDAP was evaluated by the use of thermogravimetric analysis (TGA). WBDF with DNDAP was analyzed for zeta potential and particle size and the corresponding filter cake underwent energy dispersive spectrum (EDS) analysis and scanning electron microscope (SEM) analysis. The results showed that the thermal decomposition of DNDAP mainly occurred above 303 °C. DNDAP exhibits excellent rheological and filtration properties in water-based drilling fluids, even under high-temperature aging (up to 200 °C) and high salinity (20 wt% NaCl or 5 wt% CaCl<sub>2</sub>) environments. The strong adsorption effect of DNDAP makes the particle size of bentonite reasonably distributed to form a dense mud cake that reduces filtration losses. |
| first_indexed | 2024-03-09T18:19:42Z |
| format | Article |
| id | doaj.art-7a03f9d3f7594ae28849a714369acaed |
| institution | Directory Open Access Journal |
| issn | 2310-2861 |
| language | English |
| last_indexed | 2024-03-09T18:19:42Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Gels |
| spelling | doaj.art-7a03f9d3f7594ae28849a714369acaed2023-11-24T08:25:48ZengMDPI AGGels2310-28612022-11-0181173510.3390/gels8110735New Zwitterionic Polymer as a Highly Effective Salt- and Calcium-Resistant Fluid Loss Reducer in Water-Based Drilling FluidsLuman Liu0Jinsheng Sun1Ren Wang2Fan Liu3Shifeng Gao4Jie Yang5Han Ren6Yuanzhi Qu7Rongchao Cheng8Yuan Geng9Zhenbo Feng10College of Petroleum and Nature Gas Engineering, Southwest Petroleum University, Chengdu 610500, ChinaCollege of Petroleum and Nature Gas Engineering, Southwest Petroleum University, Chengdu 610500, ChinaCNPC Engineering Technology R&D Company Ltd., Beijing 102206, ChinaCNPC Engineering Technology R&D Company Ltd., Beijing 102206, ChinaCNPC Engineering Technology R&D Company Ltd., Beijing 102206, ChinaCNPC Engineering Technology R&D Company Ltd., Beijing 102206, ChinaCNPC Engineering Technology R&D Company Ltd., Beijing 102206, ChinaCNPC Engineering Technology R&D Company Ltd., Beijing 102206, ChinaCNPC Engineering Technology R&D Company Ltd., Beijing 102206, ChinaCNPC Engineering Technology R&D Company Ltd., Beijing 102206, ChinaDaqing Drilling & Exploration Engineering Corporation No. 2 Drilling Co., Daqing 163413, ChinaTo control the filtration loss of drilling fluids in salt–gypsum formations, a novel type of zwitterionic polymer gel (DNDAP) was synthesized by free radical polymerization, which was used as a salt- and calcium-resistant fluid loss reducer for water-based drilling fluids (WBDF). DNDAP was prepared with N, N-dimethylacrylamide (DMAA), N-vinylpyrrolidone (NVP), Diallyl dimethyl ammonium chloride (DMDAAC), 2-acrylamide-2-methylpropaneonic acid (AMPS), and isopentenol polyether (TPEG) as raw materials. Fourier transform infrared spectroscopy (FT-IR) and proton nuclear magnetic resonance (<sup>1</sup>H-NMR) were used to characterize the composition and structure of the DNDAP copolymer. The thermal stability of DNDAP was evaluated by the use of thermogravimetric analysis (TGA). WBDF with DNDAP was analyzed for zeta potential and particle size and the corresponding filter cake underwent energy dispersive spectrum (EDS) analysis and scanning electron microscope (SEM) analysis. The results showed that the thermal decomposition of DNDAP mainly occurred above 303 °C. DNDAP exhibits excellent rheological and filtration properties in water-based drilling fluids, even under high-temperature aging (up to 200 °C) and high salinity (20 wt% NaCl or 5 wt% CaCl<sub>2</sub>) environments. The strong adsorption effect of DNDAP makes the particle size of bentonite reasonably distributed to form a dense mud cake that reduces filtration losses.https://www.mdpi.com/2310-2861/8/11/735zwitterionicgelhigh-temperature resistancesalt- and calcium-resistantfluid loss reducer |
| spellingShingle | Luman Liu Jinsheng Sun Ren Wang Fan Liu Shifeng Gao Jie Yang Han Ren Yuanzhi Qu Rongchao Cheng Yuan Geng Zhenbo Feng New Zwitterionic Polymer as a Highly Effective Salt- and Calcium-Resistant Fluid Loss Reducer in Water-Based Drilling Fluids Gels zwitterionic gel high-temperature resistance salt- and calcium-resistant fluid loss reducer |
| title | New Zwitterionic Polymer as a Highly Effective Salt- and Calcium-Resistant Fluid Loss Reducer in Water-Based Drilling Fluids |
| title_full | New Zwitterionic Polymer as a Highly Effective Salt- and Calcium-Resistant Fluid Loss Reducer in Water-Based Drilling Fluids |
| title_fullStr | New Zwitterionic Polymer as a Highly Effective Salt- and Calcium-Resistant Fluid Loss Reducer in Water-Based Drilling Fluids |
| title_full_unstemmed | New Zwitterionic Polymer as a Highly Effective Salt- and Calcium-Resistant Fluid Loss Reducer in Water-Based Drilling Fluids |
| title_short | New Zwitterionic Polymer as a Highly Effective Salt- and Calcium-Resistant Fluid Loss Reducer in Water-Based Drilling Fluids |
| title_sort | new zwitterionic polymer as a highly effective salt and calcium resistant fluid loss reducer in water based drilling fluids |
| topic | zwitterionic gel high-temperature resistance salt- and calcium-resistant fluid loss reducer |
| url | https://www.mdpi.com/2310-2861/8/11/735 |
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