Sounds like the well has been plugged and effort is in-place to flare off any shallow well contamination. How much water could have been released into the shallow gas formation? Anything new in the remediation effort? It sounds like CNX has done a very good job to stop any further damage. Kudos to them!
Could the flow back water migrate naturally to the surface?
What`s next now?
Given the circumstances of this well problem, is it possible to remove the 5.5" pipe to a point below the defective section and replace or repair it, and then reinstall it or new pipe? Can the heavy mud be removed from the well?
the heavy mud isn't permanent. it will depend on DEP and public pressure more than anything else. the most likely fix would be reduced diameter production pipe inside the 5.5, then another cement between. this would reduce well flow but would be better than a total loss. i'm thinking an engineered fix wouldn't be well recieved and CNX may not want that liabilty going forward. looks like public meetings are already being scheduled concerning the water reservoir. odds may lean towards plugging?