Preparation and Performance Evaluation of Ionic Liquid Copolymer Shale Inhibitor for Drilling Fluid Gel System
An inhibitor that can effectively inhibit shale hydration is necessary for the safe and efficient development of shale gas. In this study, a novel ionic liquid copolymer shale inhibitor (PIL) was prepared by polymerizing the ionic liquid monomers 1-vinyl-3-aminopropylimidazolium bromide, acrylamide,...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-01-01
|
| Series: | Gels |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2310-2861/10/2/96 |
| _version_ | 1797298134197469184 |
|---|---|
| author | Zhiwen Dai Jinsheng Sun Zhuoyang Xiu Xianbin Huang Kaihe Lv Jingping Liu Yuanwei Sun Xiaodong Dong |
| author_facet | Zhiwen Dai Jinsheng Sun Zhuoyang Xiu Xianbin Huang Kaihe Lv Jingping Liu Yuanwei Sun Xiaodong Dong |
| author_sort | Zhiwen Dai |
| collection | DOAJ |
| description | An inhibitor that can effectively inhibit shale hydration is necessary for the safe and efficient development of shale gas. In this study, a novel ionic liquid copolymer shale inhibitor (PIL) was prepared by polymerizing the ionic liquid monomers 1-vinyl-3-aminopropylimidazolium bromide, acrylamide, and methacryloyloxyethyl trimethyl ammonium chloride. The chemical structure was characterized using fourier transform infrared spectroscopy (FT-IR) and hydrogen-nuclear magnetic resonance (H-NMR), and the inhibition performance was evaluated using the inhibition of slurrying test, bentonite flocculation test, linear expansion test, and rolling recovery test. The experimental results showed that bentonite had a linear expansion of 27.9% in 1 wt% PIL solution, 18% lower than that in the polyether amine inhibitor. The recovery rate of shale in 1 wt% PIL was 87.4%. The ionic liquid copolymer could work synergistically with the filtrate reducer, reducing filtration loss to 7.2 mL with the addition of 1%. Mechanism analysis showed that PIL adsorbed negatively charged clay particles through cationic groups, which reduced the electrostatic repulsion between particles. Thus, the stability of the bentonite gel systems was destroyed, and the hydration dispersion and expansion of bentonite were inhibited. PIL formed a hydrophobic film on the surface of clay and prevented water from entering into the interlayer of clay. In addition, PIL lowered the surface tension of water, which prevented the water from intruding into the rock under the action of capillary force. These are also the reasons for the superior suppression performance of PIL. |
| first_indexed | 2024-03-07T22:31:31Z |
| format | Article |
| id | doaj.art-481287a72d8b41a3b6c8be78cfcf8553 |
| institution | Directory Open Access Journal |
| issn | 2310-2861 |
| language | English |
| last_indexed | 2024-03-07T22:31:31Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Gels |
| spelling | doaj.art-481287a72d8b41a3b6c8be78cfcf85532024-02-23T15:17:26ZengMDPI AGGels2310-28612024-01-011029610.3390/gels10020096Preparation and Performance Evaluation of Ionic Liquid Copolymer Shale Inhibitor for Drilling Fluid Gel SystemZhiwen Dai0Jinsheng Sun1Zhuoyang Xiu2Xianbin Huang3Kaihe Lv4Jingping Liu5Yuanwei Sun6Xiaodong Dong7Key Laboratory of Unconventional Oil & Gas Development, China University of Petroleum (East China), Ministry of Education, Qingdao 266580, ChinaKey Laboratory of Unconventional Oil & Gas Development, China University of Petroleum (East China), Ministry of Education, Qingdao 266580, ChinaKey Laboratory of Unconventional Oil & Gas Development, China University of Petroleum (East China), Ministry of Education, Qingdao 266580, ChinaKey Laboratory of Unconventional Oil & Gas Development, China University of Petroleum (East China), Ministry of Education, Qingdao 266580, ChinaKey Laboratory of Unconventional Oil & Gas Development, China University of Petroleum (East China), Ministry of Education, Qingdao 266580, ChinaKey Laboratory of Unconventional Oil & Gas Development, China University of Petroleum (East China), Ministry of Education, Qingdao 266580, ChinaKey Laboratory of Unconventional Oil & Gas Development, China University of Petroleum (East China), Ministry of Education, Qingdao 266580, ChinaKey Laboratory of Unconventional Oil & Gas Development, China University of Petroleum (East China), Ministry of Education, Qingdao 266580, ChinaAn inhibitor that can effectively inhibit shale hydration is necessary for the safe and efficient development of shale gas. In this study, a novel ionic liquid copolymer shale inhibitor (PIL) was prepared by polymerizing the ionic liquid monomers 1-vinyl-3-aminopropylimidazolium bromide, acrylamide, and methacryloyloxyethyl trimethyl ammonium chloride. The chemical structure was characterized using fourier transform infrared spectroscopy (FT-IR) and hydrogen-nuclear magnetic resonance (H-NMR), and the inhibition performance was evaluated using the inhibition of slurrying test, bentonite flocculation test, linear expansion test, and rolling recovery test. The experimental results showed that bentonite had a linear expansion of 27.9% in 1 wt% PIL solution, 18% lower than that in the polyether amine inhibitor. The recovery rate of shale in 1 wt% PIL was 87.4%. The ionic liquid copolymer could work synergistically with the filtrate reducer, reducing filtration loss to 7.2 mL with the addition of 1%. Mechanism analysis showed that PIL adsorbed negatively charged clay particles through cationic groups, which reduced the electrostatic repulsion between particles. Thus, the stability of the bentonite gel systems was destroyed, and the hydration dispersion and expansion of bentonite were inhibited. PIL formed a hydrophobic film on the surface of clay and prevented water from entering into the interlayer of clay. In addition, PIL lowered the surface tension of water, which prevented the water from intruding into the rock under the action of capillary force. These are also the reasons for the superior suppression performance of PIL.https://www.mdpi.com/2310-2861/10/2/96shale gasionic liquid copolymershale inhibitorwater-based drilling fluid gel system |
| spellingShingle | Zhiwen Dai Jinsheng Sun Zhuoyang Xiu Xianbin Huang Kaihe Lv Jingping Liu Yuanwei Sun Xiaodong Dong Preparation and Performance Evaluation of Ionic Liquid Copolymer Shale Inhibitor for Drilling Fluid Gel System Gels shale gas ionic liquid copolymer shale inhibitor water-based drilling fluid gel system |
| title | Preparation and Performance Evaluation of Ionic Liquid Copolymer Shale Inhibitor for Drilling Fluid Gel System |
| title_full | Preparation and Performance Evaluation of Ionic Liquid Copolymer Shale Inhibitor for Drilling Fluid Gel System |
| title_fullStr | Preparation and Performance Evaluation of Ionic Liquid Copolymer Shale Inhibitor for Drilling Fluid Gel System |
| title_full_unstemmed | Preparation and Performance Evaluation of Ionic Liquid Copolymer Shale Inhibitor for Drilling Fluid Gel System |
| title_short | Preparation and Performance Evaluation of Ionic Liquid Copolymer Shale Inhibitor for Drilling Fluid Gel System |
| title_sort | preparation and performance evaluation of ionic liquid copolymer shale inhibitor for drilling fluid gel system |
| topic | shale gas ionic liquid copolymer shale inhibitor water-based drilling fluid gel system |
| url | https://www.mdpi.com/2310-2861/10/2/96 |
| work_keys_str_mv | AT zhiwendai preparationandperformanceevaluationofionicliquidcopolymershaleinhibitorfordrillingfluidgelsystem AT jinshengsun preparationandperformanceevaluationofionicliquidcopolymershaleinhibitorfordrillingfluidgelsystem AT zhuoyangxiu preparationandperformanceevaluationofionicliquidcopolymershaleinhibitorfordrillingfluidgelsystem AT xianbinhuang preparationandperformanceevaluationofionicliquidcopolymershaleinhibitorfordrillingfluidgelsystem AT kaihelv preparationandperformanceevaluationofionicliquidcopolymershaleinhibitorfordrillingfluidgelsystem AT jingpingliu preparationandperformanceevaluationofionicliquidcopolymershaleinhibitorfordrillingfluidgelsystem AT yuanweisun preparationandperformanceevaluationofionicliquidcopolymershaleinhibitorfordrillingfluidgelsystem AT xiaodongdong preparationandperformanceevaluationofionicliquidcopolymershaleinhibitorfordrillingfluidgelsystem |