Replies to This Discussion

Permalink Reply by Rock Man on May 15, 2018 at 9:43

Joe,

You are adamant about there being no matrix P&P in the AC below the shelf. Although you cannot measure perm with open hole logs, you can measure porosity.

So are you saying that there no wells in the AC below the shelf in LA that have any open hole log porosity (density or sonic)?

Plus you are seeing no SP development (perm indicator)??

I keep asking you for specifics to back up your statements - still doing so now

Permalink Reply by Joe Aldridge on May 15, 2018 at 10:04

No, I'm saying the only producible oil/gas is in areas with natural fractures. I still don't understand this matrix thing. Is there an alt. reality as in the movie?

Permalink Reply by Rock Man on May 15, 2018 at 10:13

Joe, suggest you look at the presentation info I posted as to AC matrix play. Plus google "matrix porosity and permeability" or "total porosity" or "Effective porosity" and read up on this issue. It is the key to ALL horizontal fracture stimulated plays.

Plus spend some time looking at open hole logs to understand the measurable reservoir characteristics in the AC. Use Crain's Petrophysical Handbook (easily found via googling) to get background on the various logs and what they are measuring.

I am just looking for you to present / post some facts and data to support your statements and conclusions. Instead of just "It is what it is" type comments.

Permalink Reply by Joe Aldridge on May 15, 2018 at 10:23

I sure hope you are correct that there is a "matrix play" here. Whatever that is.

Permalink Reply by Bob Zimmerman on May 15, 2018 at 10:18

If there is oil and gas in the matrix rock in between fractures in the AC, it should show up in the drilling mud that comes up out of the hole as the matrix rock is bored between the natural fractures. 

While there has been some positive results to fracking the AC in Texas where the AC is fairly shallow and brittle, the USGS report made it clear the further east you go, the deeper and less brittle the chalk is. Six months of the Eagles Ranch production could tell the truth on fracking the AC over here.

Permalink Reply by Bob Zimmerman on May 15, 2018 at 13:42

Now, here is an interesting piece that mentions AC formation types, communication between wells, and the Masters Creek Field (next-to-the-last paragraph). It's going to be interesting if the Brookland-Masters Creek Fairway gets drilled out.

http://archives.datapages.com/data/gcags/data/063/063001/573_gcags6...

Permalink Reply by Doug Cox on May 15, 2018 at 14:08

Tanker trucks going in and out...

Permalink Reply by Jesse Joyner on May 15, 2018 at 15:51

It seems to me that there are pros and cons in regards to a variety of POVs as to how to make the AC work or if the AC will, in fact, ever produce profitable wells in La. But unless someone has beaucoup money to lease and bet on E&P, then it's nothing but an ego debate. History tells us that COP, EOG, etc. aren't going to listen to outsider completion/location advice, unless there are proven facts to substantiate it. So, time will tell the tale. Armchair calls have little to no substance as to the reality of what's actually in the ground and how it can be pumped into a pipe. Sharp insiders like COP and EOG are only going to gamble per an affordable level with their budgets. There's a saying: "Follow the money." Yet the wise will do so with their eyes wide open, knowing the downside involved on such a speculative risk, if that's what it is. And maybe in a year, the analogy to a CHK flip could prove correct with more well data. But it seems a bit early at this juncture to be branding the La. AC with that moniker, unless someone knows more than they're letting on in regards to some inside info.    

Permalink Reply by Bob Zimmerman on May 15, 2018 at 16:53

Meanwhile, some folks have been working on the problems and solutions for the Austin Chalk. Give special attention to the content of pages 8, 21 and 34. The views of Rockman are somewhat vindicated as it concerns the matrix rock. 

https://digital.library.unt.edu/ark:/67531/metadc686577/

Permalink Reply by Craig Wascom on May 15, 2018 at 23:59

They said the lower wolfcamp here in the Permian could not produce economically. If we weren’t making so much money I would wish all those white trucks would go not produce somewhere else.

Permalink Reply by Rock Man on May 16, 2018 at 3:21

Also said same things about Eagle Ford, Haynesville, Bossier and every other unconventional target that has been exploited in past 20 years.

Some don't "work" - the Pearsall Shale, Conasauga Shale, Goodland Lime and Collingwood Shale come to mind. But the track record is pretty good!

Permalink Reply by David Crockett on May 16, 2018 at 3:54

Hope this one is a keeper

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