Spontaneous imbibition in igneous rocks: effect of KCl concentration, confining pressure, and imbibition direction
Abstract Understanding spontaneous imbibition helps to determine the fracturing fluid volume and optimize the flowback design. At present, many studies have mainly focused on shale, but few on igneous rocks. As such, in this study, imbibition experiments were conducted on igneous rocks. The effects...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2020-09-01
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| Series: | Journal of Petroleum Exploration and Production Technology |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/s13202-020-00997-z |
| _version_ | 1811181090674573312 |
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| author | Changlin Zhou Li Li Rong Zeng Weihua Chen Yuxuan Liu |
| author_facet | Changlin Zhou Li Li Rong Zeng Weihua Chen Yuxuan Liu |
| author_sort | Changlin Zhou |
| collection | DOAJ |
| description | Abstract Understanding spontaneous imbibition helps to determine the fracturing fluid volume and optimize the flowback design. At present, many studies have mainly focused on shale, but few on igneous rocks. As such, in this study, imbibition experiments were conducted on igneous rocks. The effects of KCl concentration, confining pressure, and imbibition direction on the spontaneous imbibition were systematically investigated. This study then introduces a new imbibition capacity index. The results show that KCl concentration has certain inhibitory effects on igneous rock imbibition, which reduce the absorption of clay minerals to liquid. Different imbibition directions result in distinct imbibition volumes. The co-current imbibition process is similar to fluid leak-off, but this rule is not satisfied in countercurrent imbibition, the n of which is fitted as 0.1.0.3. Increasing the confining pressure will slightly decrease the imbibition capacity of igneous rock. Rock imbibition causes a decrease in the surface hardness and physical properties of igneous rock, and increasing the KCl concentration in the fluid will effectively hinder clay swelling. |
| first_indexed | 2024-04-11T09:12:36Z |
| format | Article |
| id | doaj.art-6ab493c2aef14231be1ad2e96f01127a |
| institution | Directory Open Access Journal |
| issn | 2190-0558 2190-0566 |
| language | English |
| last_indexed | 2024-04-11T09:12:36Z |
| publishDate | 2020-09-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of Petroleum Exploration and Production Technology |
| spelling | doaj.art-6ab493c2aef14231be1ad2e96f01127a2022-12-22T04:32:26ZengSpringerOpenJournal of Petroleum Exploration and Production Technology2190-05582190-05662020-09-011083227323410.1007/s13202-020-00997-zSpontaneous imbibition in igneous rocks: effect of KCl concentration, confining pressure, and imbibition directionChanglin Zhou0Li Li1Rong Zeng2Weihua Chen3Yuxuan Liu4Engineering Technology Research Institute, Southwest Oil and Gas Field Company of CNPCEngineering Technology Research Institute, Southwest Oil and Gas Field Company of CNPCEngineering Technology Research Institute, Southwest Oil and Gas Field Company of CNPCEngineering Technology Research Institute, Southwest Oil and Gas Field Company of CNPCState Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum UniversityAbstract Understanding spontaneous imbibition helps to determine the fracturing fluid volume and optimize the flowback design. At present, many studies have mainly focused on shale, but few on igneous rocks. As such, in this study, imbibition experiments were conducted on igneous rocks. The effects of KCl concentration, confining pressure, and imbibition direction on the spontaneous imbibition were systematically investigated. This study then introduces a new imbibition capacity index. The results show that KCl concentration has certain inhibitory effects on igneous rock imbibition, which reduce the absorption of clay minerals to liquid. Different imbibition directions result in distinct imbibition volumes. The co-current imbibition process is similar to fluid leak-off, but this rule is not satisfied in countercurrent imbibition, the n of which is fitted as 0.1.0.3. Increasing the confining pressure will slightly decrease the imbibition capacity of igneous rock. Rock imbibition causes a decrease in the surface hardness and physical properties of igneous rock, and increasing the KCl concentration in the fluid will effectively hinder clay swelling.https://doi.org/10.1007/s13202-020-00997-zSpontaneous imbibitionHydraulic fracturingKCl concentrationConfining pressureImbibition direction |
| spellingShingle | Changlin Zhou Li Li Rong Zeng Weihua Chen Yuxuan Liu Spontaneous imbibition in igneous rocks: effect of KCl concentration, confining pressure, and imbibition direction Journal of Petroleum Exploration and Production Technology Spontaneous imbibition Hydraulic fracturing KCl concentration Confining pressure Imbibition direction |
| title | Spontaneous imbibition in igneous rocks: effect of KCl concentration, confining pressure, and imbibition direction |
| title_full | Spontaneous imbibition in igneous rocks: effect of KCl concentration, confining pressure, and imbibition direction |
| title_fullStr | Spontaneous imbibition in igneous rocks: effect of KCl concentration, confining pressure, and imbibition direction |
| title_full_unstemmed | Spontaneous imbibition in igneous rocks: effect of KCl concentration, confining pressure, and imbibition direction |
| title_short | Spontaneous imbibition in igneous rocks: effect of KCl concentration, confining pressure, and imbibition direction |
| title_sort | spontaneous imbibition in igneous rocks effect of kcl concentration confining pressure and imbibition direction |
| topic | Spontaneous imbibition Hydraulic fracturing KCl concentration Confining pressure Imbibition direction |
| url | https://doi.org/10.1007/s13202-020-00997-z |
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