Replies to This Discussion

Permalink Reply by jeff boler on December 30, 2010 at 8:17

I believe that I mentioned 'evaporites & occasional sands' toward the outskirts of the basin in my previous post. Another example would be the pink sands which lie within the Haynesville of Smith, Jasper, & Clarke Counties (Mississippi).

 

The Shale is there, perhaps you should look a bit more basinward.

Permalink Reply by Skip Peel - Mineral Consultant on December 30, 2010 at 12:05

Then you don't have a map?

Permalink Reply by jeff boler on January 1, 2011 at 1:51

Sorry for the delay, Skip, I had expected that my 'basinward' clue would have been enough information for you to figure it all out without any outside help or visual aides. Below I have attached the documentation you requested. I hope that it helps you overcome your confusion.

Attachments:

• Haynesville Extent, Eastern GoM Basin.pdf, 146 KB
• Haynesville Extent, Western GoM Basin.pdf, 186 KB
• Southern Extent of Sand Plays, North LA.pdf, 105 KB

Permalink Reply by Skip Peel - Mineral Consultant on January 1, 2011 at 4:34

Thanks, jeff. The delay was no problem. And I understood your basinward comment. My interest in a map was for members like fred who think that the entire HA formation is shale and that energy companies are just trying to keep it quiet so they can steal his, their, minerals cheap. When you make a post such as,

The major Oil & Gas Companies believe that this Play (the Haynesville Shale) extends from North Louisiana to Cuba. It is well documented across both LA, MS & Southern AL. It has been drilled
and logged as far south as Mississippi Canyon 392 and Desoto Canyon
353. I have posted petrophysical data proving the Hynesville's Presence
@ MC-392. Furthermore, I have never read a log or drilled a foot of
Haynesville Shale that didn't yield noteworthy hydrocarbon shows of
some sort.

you
not only make a misleading statement but you fuel misconceptions that
can be detrimental to laymen members. And foster the kind of
anti-industry knee jeck reactions that render some unable to make a
rational decision. The Haynesville is not all shale, much is sand.
Those of us who make our living in this area of NW. LA. are familiar
with hundreds of HA sand wells. We are also familiar with wells to
greater depths with modern electric logs. In those fields operate
numerous companies that develop the HA shale in other portions of NW.
LA. and E. TX. They have access to sufficient data to determine
productivity and not one is drilling a HA shale well outside of the
relatively well defined current maps of the shale area of the trend.
I'm talking a few miles, not 10's or 100's of miles as you appear to
suggest.

Permalink Reply by jeff boler on January 1, 2011 at 14:58

My "knee Jerk" Reactions are based on years of experience and research... 

 

Of coarse there are updip sands in the haynesville, just as there are in most formations of the GoM basin. I pointed out the pink sands in east Mississippi. 

 

You refuse to acknowledge the fact that basinward of these shallow water sands exist a continuous Haynesville Shale (often called a Limestone) which wraps around the GoM. I suggest that remain inside your North Louisiana Comfort Zone because it doesn't appear that you are capable of grasping geological concepts on any other scale. 

 

I am terminating this discussion from my end, as time would be better spent arguing with a fence post.

Permalink Reply by Paul M. Hess on January 2, 2011 at 9:53

I will add my pennies worth as I feel both Jeff and Skip have added immeasurably to this discussion. And if I am off my rocker, I hope shalegeo and other geologists monitoring this discussion will add theirs. First, the name of a formation, or producing horizon, is often named for a lease, town or landmark nearby the first well to establish production within that formation. And it does not always mean that anything called by that name is coincident to each other as many names similar were used in the past across the region. And not always did the names correspond stratigraphically. Secondly, shoreward, the Haynesville, or any formation, will tend to be more sandy or a lime grainstone depending on sediment source whether clastic(sandy or bioclastic from shell debris, etc.) or chemical precipitation such as oolites. Basinward, clays(shale) will predominant and may be silty, or calcerous(limey). The Haynesville shale equivalent may well extend from NE Mexico arching around the GOM towards Florida. I have not the experience nor database to prove nor disprove, but it would only make geological sense. Secondly, It is my humble opinion that the Haynesville sands of NW LA are NOT equivalent to the Haynesville shale. Rather, based on discussions I had with an operator in the area and a correlated cross section I was allowed to peruse, the Haynesville shale is more likely a basinward equivalent to the N LA Smackover "A" interval and the Haynesville sands of N LA are probable shallower/shoreward equivalents to the deeper Bossier play in E TX. The nomenclature used becomes of little relevance. Names will be used similar to those in other producing areas when the production comes from beneath a regionally known named formation. The importance to me is not the name, but the presence of hydrocarbons. And that we know does extend across the gulf coast region and the gulf basin in many stratigraphic intervals.

Permalink Reply by robert gage on December 30, 2010 at 5:02

as a owner of mineral rights under the burkley phillips well, i would like to ask jeff boler what the term anticline means. i am not a oil & gas expert but am a interested party to the discussions concerning this prospect. i have enjoyed the ongoing discussion about the well while some of it is beyond my ability to understand.

Permalink Reply by Ron Jon on December 30, 2010 at 8:11

Robert an anticline is a structural high...think subsurface hill.  the inverse is a syncline...think valley.

 

Google it...you'll find some helpful images

Permalink Reply by jeff boler on December 30, 2010 at 8:30

Robert, an anticline is an underground hill. When the right formations are present, an anticline can form an Ideal trap for Oil & Gas. I don't know if you've seen it or not, but the seismic of the Buena Vista Anticline is attached below. I believe that this structure is what lead to the high number of oil and gas shows while MNLU was drilling. I'm hoping that one of these more traditional traps has gas condensate below it in commercial quantities. I don't think that the anticline would benefit a shale gas play... or at least I can't think of any. Shale is so tight that fluid-flow isn't really possible in it (or so slow that it doesn't matter). Therefore a Shale (such as the Haynesville) would be the cap-rock forming the seal within the anticline, thus preventing deeper hydrocarbons from migrating upwards.

Attachments:

• buena_vista_prospect seismic.gif, 261 KB

Permalink Reply by robert gage on December 30, 2010 at 8:34

thanks for the explanation. i knew i should have majored in geology!

Permalink Reply by Paul M. Hess on December 30, 2010 at 9:25

Jeff-

 

Thanks for posting the seismic section. I, too, hope this feature is the reason behind the plethora of shows encountered. If this shale section is sufficiently brittle by its mineral content, ie: silt, carbonate, etc., Then based on the lost circulation and "lost core" section, I would suspect natural fractures from extensional forces along the anticlinal axes. This will be a very interesting completion. As I stated previously, my hope is that they acquired plenty of downhole science to attempt one deeper into the Smackover. May the new year bring a brilliant glow to that region of MS during flow tests.

Permalink Reply by Ron Jon on December 30, 2010 at 8:16

Jeff:

 

Aren't they playing the lows or the basin for HA in NW LA?  Wouldn't they want to do the same here if the shale is their primary objective?

 

You seem familiar with the structure in this area.  Can you direct me to any reading or discussions of the same?

 

Ron

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