Lower Smackover Brown Dense

All things pertaining to leasing and drilling in the LSBD.

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Latest Activity: 11 hours ago

Discussion Forum

SWN BENSON 27 #1, S27 - 22N - 1E - UNION PARISH

Started by Skip Peel - Independent Landman. Last reply by obed w odom 11 hours ago. 33 Replies


Started by whodat. Last reply by North LA on Saturday. 467 Replies

SWN Union Parish unit applications

Started by North LA. Last reply by North LA on Thursday. 5 Replies

Union Parish 3D seismic

Started by North LA. Last reply by Skip Peel - Independent Landman Sep 25. 23 Replies


Started by Skip Peel - Independent Landman. Last reply by Skip Peel - Independent Landman Sep 19. 12 Replies

Goldston Oil Co.

Started by WalterC. Last reply by obed w odom Sep 17. 4 Replies


Started by Skip Peel - Independent Landman Sep 11. 0 Replies

Upshaw wells

Started by Aaron Young. Last reply by Skip Peel - Independent Landman Jul 8. 1 Reply

Cascade Energy, LP

Started by James Mullens. Last reply by Jimburgess Jun 13. 4 Replies

Comment Wall


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Comment by abraham 13 hours ago

Your dialogue, while interesting, is hard for a novice lease owner to follow. What is bottom line? Should we be encouraged or discouraged by the latest findings?

Comment by Ken Marx yesterday
SWN is a very good company. I am sure they did their regional evaluation before picking up what they felt was the best area to make an unconventional Brown Dense play.
Brown Dense is a dirty limestone not really a shale play. Eagle Ford basal section, while also limey, has the advantage of a regional top seal (in geospeak basal Eagle Ford represents worldwide transgression capped by a maximum flooding surface. It also has world class source rock (TOC on the order of 10-15%). As an interesting aside, TMS, while same age as Eagle Ford has 2-3% TOC and is more ductile (clay rich, imbedment problems). School is still out on that play despite the acclaim given it by Goodrich and
Comment by North LA on Sunday

Very interesting. Thanks for the insight. Do most companies get tunnel vision on new projects? Take SWN for example, will they only look at the LSBD on the land they have leased or will they take this opportunity to look at all potential targets? I understand they can't go on a wild goose chase but at the same time if you have property locked up you should try to maximize all returns if possible.

Comment by Ken Marx on Sunday
Take the Eagle Ford as an example. Map the Yield regionally using just the old verticals.
Convert mud weight to pressure. Look at Austin Chalk API gravities of old verticals.
Map the thickness of Lower Eagle Ford, check mud logs and vitrinite reflectance. Map it all up and things fall into place. It doesn't take a rocket scientist just a good data miner and time because once industry gets one the bandwagon, leases go from $200 to $10,000 an acre in a few months
Comment by Ken Marx on Saturday
Comment by Ken Marx on Saturday
It is part of being a pure exploration geologist not just a "bolt on" geo. How else are new plays found? The interest in the Brown Dense is it's known characteristics as an important source rock. Once it was shown that "it didn't have to look exactly like the Barnett". Unconventional exploration took off.
Usually, only the majors and large independents have the resources to cut teams loose on regional and, for that matter, worldwide projects.
Comment by North LA on Saturday


I know you were in the business. Do oil and gas companies extensively study old wells before proceding with any exploration?

I was just wondering because SWN has some interesting wells on land they have already leased. Here are a few such as a HA well producing 200bopd with BHP of 4,000+psi, a HA well making 400bopd with BHP of 4,000+psi, a smk A well producing 300bopd with BHP of 6,000+psi. There are many more examples.It almost seems O&G companies should get old wells and look for these high pressure areas and then lease the footprint, test, and then step out if productive.

Comment by Ken Marx on Saturday
High formation pressures are indirect evidence of requisite seals as you suggest. It won't be easy finding areally extensive zones that are "economically" thick enough and shallow enough
Comment by North LA on Saturday

Are you saying they will probably focus on conventional Brown Dense traps? Looks like the LSBD has a lot of variation throughout the extent. Maybe there are layers within the Brown dense which are sealed similar to the CV. I'm no geologist but it appears the seal not only prevents leakage of hydrocarbons but also causes the very high pressures i.e. > than 0.45psi/ft. When I've reveiwed old well data throughout north louisiana it's interesting how at one depth of a formation the flow pressure will be 200psi then at 30 or 40 ft deeper or shallower the flow pressure will be 4,000 psi. I've observed these variances in the Hosston, CV, and Smackover and I've wondered what causes this pressure difference.

Comment by Ken Marx on Saturday
Haven't seen any 3-D shoot. I'm retired. Several years ago, a regional look at well logs showed that section between Brown Dense and Upper Smack over was very permeable
and for Brown Dense to work it probably needs top seal. In my opinion, regional 3-D will ferret out a few more "conventional" traps nothing like hot SMKV play of 30-40 years ago.

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