Environmental impact assessment of oilfield upgrades in Bohai Sea

International Conference on Energy Engineering and Environmental Protection 2017

能源学;生态环境科学

Chen, Ruihui^1 ; Xiong, Yanna^1,4 ; Li, Jiao^3 ; Li, Xianbo^2

Engineering Research Center of Groundwater Pollution Control and Remediation, Ministry of Education, College of Water Sciences, Beijing Normal University, No 19, Xinjiekouwai Street, Beijing

100875, China^1

Business School, Beijing Normal University, No 19, Xinjiekouwai Street, Beijing

100875, China^2

Environmental Engineering Center, Chinese Research Academy of Environmental Sciences, No 8, Dayangfang, Beijing

100012, China^3

Solid Waste and Chemicals Management Centre, Ministry of Environmental Protection, Beijing

100035, China^4

关键词: Diversity index;    Environmental Monitoring;    Inorganic nitrogen;    Marine sediments;    Protective measures;    Reconstruction projects;    Seawater quality;    Total mercuries;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/121/3/032032/pdf
DOI  :  10.1088/1755-1315/121/3/032032

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

This paper designed 65 environmental monitoring sites to collect samples and analyze for better evaluating the environmental impact generated by cuttings, mud, produced water with oil and oil pollutions that produced during the upgrading in the Bohai Sea where the oil field 34-1 upgraded. Collecting samples include ocean water, marine life and sediments and test items involve PH, dissolved oxygen (DO), salinity, chemical oxygen demand (COD), phosphate, organic carbon, sulfide, inorganic nitrogen, petroleum, copper (Cu), lead (Pb), zinc (Zn), cadmium (Cd), total chromium (Cr), total mercury (Hg) and arsenic (As). Meanwhile sample sites collect and analyze the abundance and diversity of marine plants and elaborated the environmental impact caused by upgrading renovation project from the aspects of sea water, marine life and marine sediments. Through analysis and comparison we found that seawater quality conform the SH seawater quality standards, the excessive rate of Cu is 10%, the average diversity index of marine life is 2.34 and evenness is 0.68. Influence range of marine sediments and pollutants of production is within 2.68km and basically has no serious impact in the surrounding sea area. It's worth nothing that reconstruction project has the risk of oil spilling and protective measures must be prepared.