ODNR Posts New Utica Maps

ODNR Division of Geological Survey has released the much anticipated Utica "HOT SPOT" maps for Ohio.

Central Ohio looks HOT,HOT, HOT with S2 values.  Far exceeding eastern Ohio.

http://www.dnr.state.oh.us/geosurvey/tabid/23014/Default.aspx

Then you have to scroll down the page until you come to the Utica Shale Files For Download entries and click on the entries with the date 'Updated 11/23/2012' at the end (in red).

Those will open maps that have now been updated from those contained in the last report dated 3/27/2012.

Or you can click on them here

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Permalink Reply by Jim on December 3, 2012 at 9:19am

The oil industry is changing with technolgical improvements.  Gulfport's, which has the best production well so far in Ohio,  may have the best technology, not necessarily the best location.  Looking at the val maps, I would put a little trust in what these maps indicate.  Coshocton County looks better than Belmont and Knox looks almost equal.  It seems the sweet spots keep changing.  Maybe it's technology.  

Permalink Reply by Joseph-Ohio on December 3, 2012 at 9:28am

I'm thinking it changes as new production information dribbles in as well as better technology being developed.

It's a moving picture - a movie - and it just started.

Also it looks like to me that the indicators of 'potential' keeps being analyzed and re-analyzed and updated.

Also noting some good wells have been developed in areas where S1 is reported at 1.5 and even lower which is not the highest indication(4.0 being the best grade) but apparently the resource is there and plentiful anyway.

Permalink Reply by Kathleen on December 3, 2012 at 9:40am
One part I don't understand is right in center township ohio shows poor (blue). Every map has shown that from the first one I saw but here comes the pads and wells. Strange.
Permalink Reply by Jim on December 4, 2012 at 3:44am

These maps are for the Utica formation.  The pads and wells are probably for other deeper formations.  The Utica is not the only play in town. 

Permalink Reply by Kathleen on December 4, 2012 at 3:57am
Hi,
It's the Utica/point pleasant formation the permits are listing.
Permalink Reply by Jim on December 4, 2012 at 4:16am

A drilling company out of Michigan found oil in Clark County which is two counties west of Columbus and Clark is in the Blue.  Their permit was for the Knox fromation and the oil was found in the Eau Claire formation.  I'm new to all this and like you, I'm trying to figure it out.

Permalink Reply by searcherone on December 3, 2012 at 1:26pm

Check the S1 map and look at Belmont County's one sample.  It is represented as 0.5 with a gold line,

The map explanation says: 0.5 values have a blue line.

The map explanation says: those with a gold line have a value of 2.

Please ODNR tell us what is the correct representation for the one sample.  In my opinion according to the explanation it is inaccurate.  

Permalink Reply by Jim on December 4, 2012 at 10:31am

Might just be an error since the most productive well in Ohio is in Belmont.

Permalink Reply by Jason Grecco on December 4, 2012 at 10:48am

These maps give great information on the potential for presence of hydrocarbons, but they do not take into account the depth of the Utica and the overall effect of extraction and reservoir pressure.  These factors will indeed influence actual recovery rates from the utica.  This is one of the reasons that many of these posts can't agree to the so called "sweet spot" location.    As the Utica slopes to the southeast, the actual structure do to pressure and heat has changed it to allow for more favorable flow pathways. 

Permalink Reply by searcherone on December 4, 2012 at 3:55pm

Every landowner in this shale play wants their property to be the "sweetest spot"! 

What else can you tell us about the pressure and the flow pathways as the Utica slopes southeast?  Is there more pressure or less?   Is the Utica easier to frack making more favorable flow pathways?    Or are the engineers learning to use shorter fracking intervals in the laterals?

Permalink Reply by Jason Grecco on December 4, 2012 at 4:11pm

Searcheron,

 

It appears that there are more lateral fractures and faults in the Utica in the deeper areas 5000+ below surface elevation.  In these cases the frac'ing has been fairly easy and the reservoir pressure that naturally exists in the formation helps facilitate the natural push to the surface.  In the shallower locations, it may be necessary to frac multiple times with the addition of pumps to consistently bring it to the surface.  I am mainly referring to heavy crudes and wet gas fluids with a higher viscosity not natural gas.  These factors will highly effect degradation curves of fluids and overall production. 

Permalink Reply by Jim on December 5, 2012 at 3:27am

Jason or anybody

Can you explain the difference between S1 and S2.  The biggest change between these new maps and previous maps is S2 covers a larger area.  I've seen S2 data from the Barnett Shale where oil potential is about 8 times higher than S1 and yet I'm hearing that S2 oil cannot be recovered.  So why publish an S2 map?

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