Experimental and Statistical Study on Wellbore Scaling Mechanisms and Characteristics for Huanjiang Oilfield
Wellbore scaling is a complex and one of the common problems encountered during the depletion of an oilfield. Many studies have been conducted on general scale mechanisms, scale predictions, and removal measurements. However, the detailed study of the scaling characteristics and mechanisms in Huanji...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-01-01
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| Series: | Geofluids |
| Online Access: | http://dx.doi.org/10.1155/2022/9068440 |
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| _version_ | 1832567113402810368 |
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| author | Na Zhang Xicheng Wang Jianmin Zhang Xiaopeng He Shaofei Kang Jingyang Pu Shuhang Fan Xu Li |
| author_facet | Na Zhang Xicheng Wang Jianmin Zhang Xiaopeng He Shaofei Kang Jingyang Pu Shuhang Fan Xu Li |
| author_sort | Na Zhang |
| collection | DOAJ |
| description | Wellbore scaling is a complex and one of the common problems encountered during the depletion of an oilfield. Many studies have been conducted on general scale mechanisms, scale predictions, and removal measurements. However, the detailed study of the scaling characteristics and mechanisms in Huanjiang oilfield is limited. The objective of this work is to investigate the scaling mechanisms and characteristics to provide guidance for scale inhibitor selection, synthesis, and testing in the Huanjiang oilfield. Ion chromatography (IC) was used to test the composition of 100 water samples, and energy dispersive spectroscopy (EDS), scanning electron microscope (SEM), and X-ray diffraction (XRD) were utilized to analyze the composition of 120 wellbore scale samples that were collected from the Huanjiang oilfield. The results show that the water types of formation and groundwater are CaCl2 and Na2SO4, respectively. The oil wells produced from Chang 4+5, Chang 6, and Chang 8 reservoir layers in the development of Yanchang group are mainly calcium-based scale (CaCO3 and CaSO4), supplemented by wax deposition scale, corrosion scale, and NaCl and KCl crystal scale. In contrast, the oil wells in Yan’an group (Yan 6, Yan 7, Yan 8, Yan 9, and Yan 10 reservoir layers) are mainly wax deposition scale and corrosion scale. |
| format | Article |
| id | doaj-art-920a2145f15940ddb720e30939394f87 |
| institution | Kabale University |
| issn | 1468-8123 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geofluids |
| spelling | doaj-art-920a2145f15940ddb720e30939394f872025-02-03T01:02:23ZengWileyGeofluids1468-81232022-01-01202210.1155/2022/9068440Experimental and Statistical Study on Wellbore Scaling Mechanisms and Characteristics for Huanjiang OilfieldNa Zhang0Xicheng Wang1Jianmin Zhang2Xiaopeng He3Shaofei Kang4Jingyang Pu5Shuhang Fan6Xu Li7Shandong University of Science and TechnologyChangqing Oilfield Branch of PetroChinaChangqing Oilfield Branch of PetroChinaChangqing Oilfield Branch of PetroChinaChina University of Petroleum (East China)China University of Petroleum (East China)Shandong University of Science and TechnologyChina University of Petroleum (East China)Wellbore scaling is a complex and one of the common problems encountered during the depletion of an oilfield. Many studies have been conducted on general scale mechanisms, scale predictions, and removal measurements. However, the detailed study of the scaling characteristics and mechanisms in Huanjiang oilfield is limited. The objective of this work is to investigate the scaling mechanisms and characteristics to provide guidance for scale inhibitor selection, synthesis, and testing in the Huanjiang oilfield. Ion chromatography (IC) was used to test the composition of 100 water samples, and energy dispersive spectroscopy (EDS), scanning electron microscope (SEM), and X-ray diffraction (XRD) were utilized to analyze the composition of 120 wellbore scale samples that were collected from the Huanjiang oilfield. The results show that the water types of formation and groundwater are CaCl2 and Na2SO4, respectively. The oil wells produced from Chang 4+5, Chang 6, and Chang 8 reservoir layers in the development of Yanchang group are mainly calcium-based scale (CaCO3 and CaSO4), supplemented by wax deposition scale, corrosion scale, and NaCl and KCl crystal scale. In contrast, the oil wells in Yan’an group (Yan 6, Yan 7, Yan 8, Yan 9, and Yan 10 reservoir layers) are mainly wax deposition scale and corrosion scale.http://dx.doi.org/10.1155/2022/9068440 |
| spellingShingle | Na Zhang Xicheng Wang Jianmin Zhang Xiaopeng He Shaofei Kang Jingyang Pu Shuhang Fan Xu Li Experimental and Statistical Study on Wellbore Scaling Mechanisms and Characteristics for Huanjiang Oilfield Geofluids |
| title | Experimental and Statistical Study on Wellbore Scaling Mechanisms and Characteristics for Huanjiang Oilfield |
| title_full | Experimental and Statistical Study on Wellbore Scaling Mechanisms and Characteristics for Huanjiang Oilfield |
| title_fullStr | Experimental and Statistical Study on Wellbore Scaling Mechanisms and Characteristics for Huanjiang Oilfield |
| title_full_unstemmed | Experimental and Statistical Study on Wellbore Scaling Mechanisms and Characteristics for Huanjiang Oilfield |
| title_short | Experimental and Statistical Study on Wellbore Scaling Mechanisms and Characteristics for Huanjiang Oilfield |
| title_sort | experimental and statistical study on wellbore scaling mechanisms and characteristics for huanjiang oilfield |
| url | http://dx.doi.org/10.1155/2022/9068440 |
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