Risk-based decision-making for drilling waste discharges using a fuzzy synthetic evaluation technique
Sadiq, R.; Husain, T.; Veitch, B.; Bose, N. (2004). Risk-based decision-making for drilling waste discharges using a fuzzy synthetic evaluation technique. Ocean Eng. 31(16): 1929-1953
In: Ocean Engineering. Pergamon: Elmsford. ISSN 0029-8018; e-ISSN 1873-5258, more
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| Keywords |
Chemical elements > Metals > Heavy metals
Engineering > Offshore engineering
Environments > Aquatic environment > Marine environment
Fluids > Drilling fluids
Natural resources > Mineral resources > Mineral deposits > Subsurface deposits > Fuels > Fossil fuels > Petroleum
Risk assessment
Waste disposal
Waste disposal > Ocean dumping
Marine/Coastal |
| Authors | | Top |
- Sadiq, R.
- Husain, T.
- Veitch, B.
- Bose, N.
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| Abstract |
Offshore petroleum drilling wastes contain toxic substances that are potentially harmful to the marine ecosystem. Despite environmentally benign characteristics, wastes associated with synthetic-based fluids still contain a certain amount of pollutants due to contamination with formation oil and the presence of trace heavy metals in barite, which may pose risk when discharged into the marine environment. A framework is presented here for a decision support system for the selection of the best drilling waste discharge option. Uncertainties in the quantification of risk, cost and technical feasibility are expressed by fuzzy numbers. An analytical hierarchy process with a technique called fuzzy synthetic evaluation is employed to determine the best management alternative (discharge scenario). |
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