Join OSP for a Friday adventure. You pack your hiking gear, get in the car, drive to the mountains and arrive at your destination. You jump out of the car with excitement only to come face to face with a sign that reads ‘Caution Bear in Area.’ Do you think to yourself meh, what are the odds the bear is still in the area and go for it? Do you read on to see what kind of bear was seen (black, brown, grizzly) to better understand what you are about to potentially walk into? Do you then use that information to repack your gear ensuring you have proper protection should you encounter a bear? Use the data to make an informed decision and be sufficiently prepared. Don’t just walk blindly up a mountain playing the odds. You never know what is around the corner waiting.
Let’s spin this back to our world. You are about to do a frac and test your source water. The report comes back with the words “no significant MIC or souring threats were observed”. Your first instinct might be a happy dance at the costs savings of now not needing a biocide, which would be wrong. You haven’t accounted for the reservoir. During a frac, you are adding barrels of water and nutrients to the reservoir that very well could stimulate bad bugs already down there (natural, or from drilling) lurking in the dark waiting for the right conditions to become a significant community. You may not need much biocide to prepare the source water, but you still need biocide to protect the reservoir.
Use the data to drive decisions, map out what success looks like from start to finish and leave the odds alone.