海水入侵区视电阻率与氯离子浓度关系研究——以秦皇岛地区为例

doi:10.11720/wtyht.2022.1220

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摘要

为划分海水入侵界线,在秦皇岛沿海疑似海水入侵地区开展了高密度电阻率法勘察工作,并基于该成果对视电阻率与氯离子浓度的关系进行了分析总结。从统计分析不同地质分区的电法测井视电阻率值与对应井所采集水样得到的氯离子浓度的对应关系着手,通过数理分析求取二者之间的相关关系,得出研究区内二者的对应线性关系式,利用该关系式并结合高密度电法测量成果划分出研究区海水入侵界线。本次研究过程及最终所得关系式成果将为类似区域后续工作提供经验借鉴和方法指导。

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	孙建宏
	程立群
	赵伟锋
	任改娟
	孙冠石
	王瑞鹏
	裴明星

关键词 ：海水入侵, 高密度电阻率法, 数理统计, 线性回归, 秦皇岛

Abstract：

This study mainly analyzes and summarizes the relationship between the apparent resistivity and chloride ion concentration in the process of determining the seawater intrusion boundaries of suspected seawater intrusion areas in Qinhuangdao coastal areas using results obtained by the high-density resistivity method. Firstly, this study conducted the statistical analysis of the corresponding relationship between apparent resistivity values obtained through resistivity logging in different geological zones and the chloride ion concentration obtained from water samples collected from corresponding wells. Based on this, the correlation between them was obtained through mathematical analysis, and then the corresponding linear relationship between them was determined. Finally, seawater intrusion areas in the study area were delineated using this relationship combined with the measurement results obtained by the high-density resistivity method. The research process and the final linear relationship will provide experience and methodological guidance for the follow-up work in similar regions.

Key words： seawater invasion high-density resistivity method mathematical statistics linear regression Qinghuangdao

收稿日期: 2021-04-19 修回日期: 2021-10-12 出版日期: 2022-04-20

ZTFLH:

P631

基金资助:国家海洋局、财政部“蓝色海湾整治行动”资金项目(国海办字[2016]612号)

作者简介: 孙建宏(1979-),男,高级工程师,长期从事地球物理勘查工作。Email: 65400484@qq.com

引用本文:

孙建宏, 程立群, 赵伟锋, 任改娟, 孙冠石, 王瑞鹏, 裴明星. 海水入侵区视电阻率与氯离子浓度关系研究——以秦皇岛地区为例[J]. 物探与化探, 2022, 46(2): 518-524.
SUN Jian-Hong, CHENG Li-Qun, ZHAO Wei-Feng, REN Gai-Juan, SUN Guan-Shi, WANG Rui-Peng, PEI Ming-Xing. Relationship between apparent resistivity and chloride ion concentration in seawater intrusion areas: A case study of Qinhuangdao. Geophysical and Geochemical Exploration, 2022, 46(2): 518-524.

链接本文:

https://www.wutanyuhuatan.com/CN/10.11720/wtyht.2022.1220 或 https://www.wutanyuhuatan.com/CN/Y2022/V46/I2/518

Fig.1 秦皇岛近岸海域海水入侵界线及监测测线布置

Table 1 物性测井视电阻率与氯离子浓度统计

Fig.2 测井视电阻率与氯离子浓度关系曲线

Fig.3 变换后的视电阻率与氯离子浓度关系曲线

Fig.4 研究区高密度电阻率法反演电阻率断面

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