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Permalink Reply by Skip Peel - Mineral Consultant 8 hours ago

In a discussion with a friend at the Office of Conservation I discovered something that surprised me.  The 330' No Perf zones we have touched on are not regulations of the DNR/OOC.  It seems they are industry standard operating procedures that were common in the era of conventional E&P and have been carried over to the horizontal drilling era of unconventional E&P.  In that earlier drilling era I feel sure the reason was to avoid mineral trespass - drainage outside the area leased or unitized.  Ryan, you seem to infer that frac cylinders do not propagate much north and south but horizontally east to west in these north/south axis laterals.  Would I be correct in assuming that?

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Permalink Reply by Ryan Howrish 8 hours ago

That is my opinion, yes.  In the Haynesville and Bossier, with wells drilled in a N-S / S-N azimuth, fractures predominately grow perpendicular to the wellbore and vertically.

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Permalink Reply by Skip Peel - Mineral Consultant 8 hours ago

I thought that was your opinion.  So, do you know why HA operators not drilling up to or very close to those north and south unit boundaries in H wells? Seems a waste of gas.

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