Isolating other gas bearing formations.

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This is a different illustration from another source of a well before and after plugging.  It does not show a coal seam (like there almost always is in West Virginia) but it does show multiple oil and gas formations that are likely here in West Virginia.  It also illustrates how the bottom of the well casing pipe is cemented into the formation (but not to the surface) and then during drilling perforated with holes into the production formation to allow frac’ing through the perforations and then collection of the gas back through the perforations.

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