How to identify underground blowouts ///

In the most basic terms, our impulse is to use our sensory perception to identify a surface blowout. Do you see a fire, the flow, equipment leak, smoke, pollution or damage? Sometimes we can hear, smell, and even feel the blowout. But in the case of an UnderGround BlowOut (UGBO), sensory perception cannot be used to identify it, unless it evolves into a surface event. Even after 35 years of worldwide well-control experience, my ability to see underground is not any better than yours. Different assessment methods must be used. These include surface pressure evaluations, logging techniques and a thorough understanding of the well’s history and geology. Perhaps you just said to yourself, “Yeah, but anyone can read a temperature log.” Hopefully, you’ll reserve your opinion on that until you read this article. In the most basic terms, our impulse is to use our sensory perception to identify a surface blowout.

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