Question for fracking and Natural Gas production.
I have seen statements to the effect that very old natural gas wells in tight shale are still producing at a modest rate 50 or more years after they were initially completed.
Is that true? If it is not true then the rest of this is not relevant.
Presuming it is true, a fracked well in shale has the same rapid decline rate curve (or near enough) to the decline curve we see in all those fracked light tight oil wells that have come online in the last decade. Does that decline curve turn into a very long duration moderate rate production for decades after initial decline? Or does the well lose economic value quickly?
My understanding is once a natural gas well is completed and placed in production it just keeps producing until all of the pressure in the formation is expelled, which can be a very very long time at low rates of production. If this is an accurate portrayal will all those fracked wells in the Marcellus and Utica shales still be producing in say 2046?
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