A novel approach to assess acid diversion efficiency in horizontal wells
Abstract Using an acid to stimulate a heterogeneous carbonate reservoir during matrix acidizing may lead to over-treating the high permeability zones, leaving low permeability zones untreated. This is particularly exacerbated in long horizontal sections, necessitating the use of acid diverters for e...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2025-01-01
|
| Series: | Scientific Reports |
| Subjects: | |
| Online Access: | https://doi.org/10.1038/s41598-024-84671-y |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841544669848141824 |
|---|---|
| author | Abdulameer Almalichy Murtada Saleh Aljawad Zoltan Turzo Ahmed Al-Yaseri |
| author_facet | Abdulameer Almalichy Murtada Saleh Aljawad Zoltan Turzo Ahmed Al-Yaseri |
| author_sort | Abdulameer Almalichy |
| collection | DOAJ |
| description | Abstract Using an acid to stimulate a heterogeneous carbonate reservoir during matrix acidizing may lead to over-treating the high permeability zones, leaving low permeability zones untreated. This is particularly exacerbated in long horizontal sections, necessitating the use of acid diverters for effective acid distribution across the formation. In previous studies, conventional core flooding systems were utilized where single inlet and outlet lines were used or, at best, two outlet lines for dual-core flooding. This paper proposes a new method for simulating matrix acidizing in horizontal wells by introducing five injection points and two outlet lines. The injection points are perpendicular to the core samples to simulate multiple perforations in a horizontal well while the outlet lines are parallel. Four experiments were conducted in this study using Indiana limestone cores that were 1.5 inches in diameter. For the first three tests, the length of the core was 12 inches, and the cores’ average permeabilities were 16 mD. For the fourth one, two 6-inch length cores with different average permeability (10 and 50 mD) were employed. Hydrochloric acid was used in the first experiment, while hydrochloric acid with viscoelastic surfactant (VES) was used in subsequent experiments. To the best of our knowledge, this is the first study to introduce a multi-point injection system with enhanced coverage and distribution, resulting in a more precise representation of acidizing a horizontal well. |
| format | Article |
| id | doaj-art-66e17520e37e482da3d92d46488b60bf |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-66e17520e37e482da3d92d46488b60bf2025-01-12T12:22:00ZengNature PortfolioScientific Reports2045-23222025-01-0115111210.1038/s41598-024-84671-yA novel approach to assess acid diversion efficiency in horizontal wellsAbdulameer Almalichy0Murtada Saleh Aljawad1Zoltan Turzo2Ahmed Al-Yaseri3Institute of Mining and Energy, Faculty of Earth and Environmental Sciences and Engineering, University of MiskolcDepartment of Petroleum Engineering, King Fahd University of Petroleum & MineralsInstitute of Mining and Energy, Faculty of Earth and Environmental Sciences and Engineering, University of MiskolcCenter for Integrative Petroleum Research, King Fahd University of Petroleum & MineralsAbstract Using an acid to stimulate a heterogeneous carbonate reservoir during matrix acidizing may lead to over-treating the high permeability zones, leaving low permeability zones untreated. This is particularly exacerbated in long horizontal sections, necessitating the use of acid diverters for effective acid distribution across the formation. In previous studies, conventional core flooding systems were utilized where single inlet and outlet lines were used or, at best, two outlet lines for dual-core flooding. This paper proposes a new method for simulating matrix acidizing in horizontal wells by introducing five injection points and two outlet lines. The injection points are perpendicular to the core samples to simulate multiple perforations in a horizontal well while the outlet lines are parallel. Four experiments were conducted in this study using Indiana limestone cores that were 1.5 inches in diameter. For the first three tests, the length of the core was 12 inches, and the cores’ average permeabilities were 16 mD. For the fourth one, two 6-inch length cores with different average permeability (10 and 50 mD) were employed. Hydrochloric acid was used in the first experiment, while hydrochloric acid with viscoelastic surfactant (VES) was used in subsequent experiments. To the best of our knowledge, this is the first study to introduce a multi-point injection system with enhanced coverage and distribution, resulting in a more precise representation of acidizing a horizontal well.https://doi.org/10.1038/s41598-024-84671-yMatrix acidizingDiversionViscoelastic surfactant (VES)Carbonate formationWormhole |
| spellingShingle | Abdulameer Almalichy Murtada Saleh Aljawad Zoltan Turzo Ahmed Al-Yaseri A novel approach to assess acid diversion efficiency in horizontal wells Scientific Reports Matrix acidizing Diversion Viscoelastic surfactant (VES) Carbonate formation Wormhole |
| title | A novel approach to assess acid diversion efficiency in horizontal wells |
| title_full | A novel approach to assess acid diversion efficiency in horizontal wells |
| title_fullStr | A novel approach to assess acid diversion efficiency in horizontal wells |
| title_full_unstemmed | A novel approach to assess acid diversion efficiency in horizontal wells |
| title_short | A novel approach to assess acid diversion efficiency in horizontal wells |
| title_sort | novel approach to assess acid diversion efficiency in horizontal wells |
| topic | Matrix acidizing Diversion Viscoelastic surfactant (VES) Carbonate formation Wormhole |
| url | https://doi.org/10.1038/s41598-024-84671-y |
| work_keys_str_mv | AT abdulameeralmalichy anovelapproachtoassessaciddiversionefficiencyinhorizontalwells AT murtadasalehaljawad anovelapproachtoassessaciddiversionefficiencyinhorizontalwells AT zoltanturzo anovelapproachtoassessaciddiversionefficiencyinhorizontalwells AT ahmedalyaseri anovelapproachtoassessaciddiversionefficiencyinhorizontalwells AT abdulameeralmalichy novelapproachtoassessaciddiversionefficiencyinhorizontalwells AT murtadasalehaljawad novelapproachtoassessaciddiversionefficiencyinhorizontalwells AT zoltanturzo novelapproachtoassessaciddiversionefficiencyinhorizontalwells AT ahmedalyaseri novelapproachtoassessaciddiversionefficiencyinhorizontalwells |