Environmental impact assessment of oilfield upgrades in Bohai Sea

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...

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Bibliographic Details
Published in:IOP conference series. Earth and environmental science 2018-02, Vol.121 (3), p.32032
Main Authors: Chen, Ruihui, Xiong, Yanna, Li, Jiao, Li, Xianbo
Format: Article
Language:English
Subjects:
Arsenic
Cadmium
Chemical analysis
Chemical oxygen demand
Chromium
Copper
Dissolved oxygen
Environmental impact
Environmental impact assessment
Environmental monitoring
Lead
Marine plants
Marine pollution
Marine sediments
Mercury
Oil
Oil and gas fields
Oil field equipment
Oil fields
Oil pollution
Organic carbon
Pollutants
Quality standards
Seawater
Sediment pollution
Sediments
Water analysis
Water quality
Zinc
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Summary: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 Ш 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.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/121/3/032032