June 2019

Process Control and Instrumentation

Mitigating corrosion challenges from opportunity crudes

High-quality crudes are not always readily available, or at a price that is acceptable to the producer’s budget.

Wold, K., Emerson Automation Solutions

High-quality crudes are not always readily available, or at a price that is acceptable to the producer’s budget. Therefore, the trend toward using opportunity crudes—or spot crudes—is growing, despite the corrosion challenges that come with them. The financial case for opportunity crudes—purchased at a significant discount per barrel—is compelling. Even a 1% use of opportunity crudes, at a discount of $6/bbl in a medium-size refinery of 300,000 bpd, can lead to crude oil cost savings of up to $6.5 MM/yr. In addition, these crude oil cost savings are conservative, considering that the typical Western Canada Select (WCS) crude discount to West Texas Intermediate (WTI) is about 25%. However,

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