Replies to This Discussion

Permalink Reply by Skip Peel - Mineral Consultant on April 10, 2013 at 8:12

ddozier, yes, generally speaking condensate and oil can be found at deeper depths in certain locations especially off shore and in association with massive salt deposits.  My comments are specifically about the area of the Brown Dense under discussion.  And all the formations generally deepen as you move further south in the basin.  Except where major faulting, salt intrusion or uplifts occur the rate of dip is relatively consistent. When speaking of a specific location depth can be a determining factor associated with the prevailing temps, pressure and chemistry.  IMO a move slightly south in Union and Claiborne parishes for L SMK exploratory wells makes sense as it is a move from the oil/wet gas window convergence further into the wet gas zone.  IMO SWN's application to redefine the LWR SMK from oil and gas to condensate and gas supports this.

tony, keep in mind that the discussions concerning oil below the Haynesville were specifically about the Haynesville Shale in DeSoto and Red River parishes.  Not the Haynesville Sand in Union or Claiborne parishes.  The Haynesville Sand up north is considerably shallower and regularly contains liquids.  Only the few Haynesville Shale wells drilled in north Caddo Parish produced any liquids.  Very little in fact.  Further south the Haynesville Shale is very dry due to it's thermal maturity.  Not surprising since it is ~ 1500' to 3000' deeper there than in Union and Claiborne.  Those rumor of oil below the Haynesville or oil in the Norphlet in E TX.  are over two years old.  And have never been confirmed by the drill bit.

Permalink Reply by obed w odom on April 11, 2013 at 2:59

Maybe the pressures in the Brown Dense generally increase as one moves south, but specifically with regard to the BML well where SWN first encountered the "high-pressure" region, they said their vertical hole did not show the high pressure. Only when they got about 300 feet into their northward lateral did they get the high-pressure kick. So in this specific location it seems that moving south gives lower pressure.

Permalink Reply by Skip Peel - Mineral Consultant on April 11, 2013 at 3:05

The fact that the pressure gradient is not consistent is a challenge for SWN.  Even over limited areas the fluctuation appears to be significant.  IMO the chances that there is greater consistency of pressure is better at slightly deeper depths to the south.

Permalink Reply by Robert Phillips on April 11, 2013 at 4:10

I agree and have been saying this all along.  The Brown Dense is not the Bossier Shale.  In the years prior the shale plays the Bossier was considered a drilling hazard in North Louisiana, extremely gassy and over pressured.  The BD has never been like that.  Sure there may be isolated over pressured areas like the one currently being exploited in Union Ph. but IMO the formation generally lacks the matrix permeability/porosity and fracture network to produce oil in commercial quantities.  Now, if one moves downdip, in the fault zones where formation is deeper, natural fracturing more extensive, likely higher pressure and lighter hydrocarbons you may have a better shot. 

Permalink Reply by Skip Peel - Mineral Consultant on April 11, 2013 at 4:21

I look forward to WLL spudding a well in their Union Parish, Bull Creek Field L SMK unit.  S21 & 28 - 21N - 3W.

Permalink Reply by obed w odom on April 15, 2013 at 8:15

Looks like Whiting has been granted a permit for a vertical lease well in S28-21N-3W of the Bull Creek Field. This well, the HICKS ET AL FLP 28, will be in the proposed LWR SMK RA SUA unit, whose DNR hearing is scheduled for tomorrow morning.

http://sonlite.dnr.state.la.us/sundown/cart_prod/cart_con_wellinfo2...

Permalink Reply by Skip Peel - Mineral Consultant on April 15, 2013 at 8:20

Thanks, obed.  I like WLL going with vertical wells initially.  And starting a little further south. 

Permalink Reply by whodat on April 15, 2013 at 8:37

Roughly how much farther south than the Dean well?

Permalink Reply by Land Rat on April 15, 2013 at 8:48

I will be one section over from the Hollis Well that had been permitted by SWN

http://sonlite.dnr.state.la.us/sundown/cart_prod/cart_con_wellinfo2...

Permalink Reply by Land Rat on April 15, 2013 at 8:50

roughly six miles south of the hollis well.

Permalink Reply by whodat on April 15, 2013 at 8:55

thanks!!

Permalink Reply by G Meaux on April 15, 2013 at 9:34

ROUGH LOCATION ON MAP

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• BROWN DENSE 1.jpg, 181 KB

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