南海北部典型海域碳酸盐体系的分布特征  

Distribution Characteristics of Carbonate Systems in Typical Waters in the Northern South China Sea

作　　者：谢双蔚 张敏霞 尤启明 尹晓娜 王玉如 陈超慧 卢楚谦[2,3] 唐宏 叶剑军 XIE Shuangwei;ZHANG Minxia;YOU Qiming;YIN Xiaona;WANG Yuru;CHEN Chaohui;LU Chuqian;TANG Hong;YE Jianjun(CNOOC Research Institute Co.,Ltd.,Beijing 100028,China;South China Sea Environmental Monitor-ing Center,SOA,Guangzhou 510300,China;Key Laboratory of Marine Environmental Survey Technology and Application,Ministry of Natural Resources,Guangzhou 510300,China)

机构地区：[1]中海油研究总院有限责任公司,北京100028 [2]国家海洋局南海环境监测中心,广东广州510300 [3]自然资源部海洋环境探测技术与应用重点实验室,广东广州510300

出　　处：《河南科技》2023年第8期83-87,共5页Henan Science and Technology

基　　金：国家海洋局南海分局海洋科学技术局长基金(180207);中海石油(中国)有限公司北京研究中心课题“恩平油田CO_(2)捕集和封存技术研究与示范应用”。

摘　　要：【目的】通过2022年春、夏季在油田海域开展现场观测,探讨碳酸盐体系的分布特征。【方法】对春、夏两季海水水温、盐度、pH值、溶解氧、总碱度、溶解无机碳的平面和垂直分布进行分析研究,并进行要素间相关性分析。【结果】调查海域水温和盐度水平分布均匀,变化较小;整个海域pH值介于8.1~8.2;总碱度和溶解无机碳水平分布没有明显统一规律。【结论】春、夏两季水温、pH值、溶解氧随深度增加而降低,盐度、总碱度、溶解无机碳随深度增加而升高;温度、有机物再矿化、生物作用可能是引起水体总碱度、溶解无机碳变化的主要因素。[Purposes]The distribution characteristics of the carbonate system were discussed by conduct⁃ing on-site observations in oilfield waters in the spring and summer of 2022.[Methods]The horizontal and vertical distributions of seawater temperature,salinity,pH,dissolved oxygen,total alkalinity and dis⁃solved inorganic carbon in spring and summer were analyzed and studied,and the correlation analyses between the parameters were also carried out.[Findings]The water temperature and salinity levels in the sea area were evenly distributed and the changes were small.The pH of the survey area was 8.1~8.2,and there was no apparent consistent distribution pattern of total alkalinity and dissolved inorganic car⁃bon.[Conclusions]Water temperature,pH,and dissolved oxygen decrease with the increase of depth in spring and summer.In contrast,salinity,total alkalinity,and dissolved inorganic carbon showed different distribution trends,increasing with the rise in depth.Water temperature,organic matter remineralization,and biological effects might be the main factors causing changes in total alkalinity and dissolved inor⁃ganic carbon in water.

关 键 词：油田 南海北部 碳酸盐体系 分布特征 

分 类 号：TG333[金属学及工艺—金属压力加工]