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Permalink Reply by Bill Barnaby 13 hours ago

Without knowing exactly where the trenton is, your question confused me, if they go to the trenton they have to go through the utica. Do you mean, are they going to drill horizontally on the utica and trenton?

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Permalink Reply by Bob 10 hours ago

Most wells being drilled around here are Utica wells,  The Utica shell is above the Trenton, so if a request for a permit list the Trenton as the target area are they bypassing the Utica with the vertical  runs and going vertical in the Trenton.?

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Permalink Reply by Philip Brutz 9 hours ago

UticaShale_WellPrototype_diagram.pdf

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Permalink Reply by jason irvine 9 hours ago

I heard they are going to explore the deeper trenton. Were is this permit for?

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Permalink Reply by Bob 9 hours ago

This is for a Eclipse well that is suppose to be a Utica well in Monroe county. Just didn't understand why the target area was Trenton.  Do all the Utica permits say Trenton?

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Permalink Reply by KAR 7 hours ago

Do you have a copy of the application? If you do, check to see if it is marked as stratigraphic for the permit type. Operators apply for Stratigraphic permits so they can drill straight down and run logs on the rock in that area. Usually they'll do this for wildcat wells. They do not plan to produce this and most likely will plug back and then drill
the horizontal in the Utica/Pt. Pleasant formation to produce gas and oil.

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Permalink Reply by Jack Straw 5 hours ago

Re: "If a well permit list the target area as the Trenton does that mean they are going to drill through the Utica  into the Trenton or just to the Trenton."

My take on the above:

The Trenton Limestone lies directly below the Utica Shale.

To know at exactly what depth the base (bottom) of the Utica Shale resides, you have to log a full suite of logging tools through the base of the Utica; to do that you have to drill into the Trenton.

Also, there will be debris that falls into the bottom of the hole.

So, you tend to drill 60 - 90 feet below the deepest rocks that you are interested in.

This last bit of hole (beneath your maximum area of interest) is lovingly referred to as the "Rat Hole"; just some additional hole to accommodate logging tools and a repository for anything that might slough off into the hole.

All IMHO,

                 JS

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