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Analysis of How Environmental Conditions Affect Dispersant Performance During Deep Ocean Applications

Project Number
Progress Date
Project Initiation Date
Performing Activity
Pacific Northwest National Laboratories (PNNL)
Principal Investigator
George Bonheyo
Estimated Completion Date

This project determined how subsea conditions of pressure, pressure drop, temperature, solution gas-oil ratio (GOR), dispersant-to-oil ratio (DOR), sediment, and hydrates affect the effectiveness of dispersants. Specifically, the project investigated:
-The impact ambient water pressure and the pressure drop expected at a blowout have on oil-dispersant mixes; 
-The effect temperature differentials between oil, dispersant, and surrounding seawater have on oil-dispersant mixes;
-The effects sediments have on oil-dispersant mixes; and 
-The relationship between dispersant activity and hydrate formation.

Latest progress update

Project completed

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