Replies to This Discussion

Permalink Reply by king john on April 20, 2009 at 0:15

les b
thanks for the info. i too had noticed the name distenction and had wonderd to myself what it was about. i am a little confused by the naming of the zones as the proposed depths of some of wells do not seem to corelate with the target zone. like someone on here said before , i dont care what they call it as long as it pays. i guess that is a valued point. i had also noticed there are some new permits for really deep wells 15k to 17k feet deep.
what zone do you think that would be? smackover? when the term cotten valley consolidated is used what has been consolidated? as i understand it the cotten valley lime is deposited in some parts of shelby county would that be part of the c.v. consolidated?
kj

Permalink Reply by Sandstone on April 20, 2009 at 3:39

Thanks for the info Les. We don't hear much about the Fayetteville players.

Les B, would you please go over to the San Augustine site and read the comments and see what you think is going on with ION. Thanks a bunch.

Permalink Reply by king john on April 20, 2009 at 8:07

les b.
im sorry, the deep wells were permitted in panola county, would still to like to know. what zone you would call that. one to 15k and one to 18k.
thanks in advance
kj

Permalink Reply by Les Bamburg on April 20, 2009 at 8:50

KJ, great questions!! It is likely these wells with depths > 12,000 ft are horizontals rather than verticals. In other words the 15k would be the measured depth and the true vertical depth (TVD) may be 11k with a 4k horizontal lateral. Target zone could be Cotton Valley or Bossier Shale or other.

Cotton Valley Consolidated can mean one of two things. (1) Sometimes two or more geographic field areas are merged for a single formation. Example would be to merge Field A (Cotton Valley) with Field B (Cotton Valley) with the result being Field A (CV Consolidated). (2) Sometimes two or more zones in the same field are merged. Example would be to merge Field A (Cotton Valley Sand) with Field A (Bossier Sand) with the result being Field A (CV-Bossier Consolidated). I have seen Cotton Valley Sand, Cotton Valley Lime & Bossier Shale all merged into a CV-Bossier Consolidated.

Sorry for the long winded answer.

Permalink Reply by king john on April 20, 2009 at 12:37

les b.
not at all ,i thought that was a great explanation. i have seen some wells that have #H on them indicating they are horizontal. do you know is this a requirment or just the operators preference.
also if you happen to know i am wondering if there is such a thing as completing a horizontal well with multiple laterals targeting different zones and depths?
thanks always
kj

Permalink Reply by Les Bamburg on April 21, 2009 at 1:38

KJ, I am not sure but it seems to be a requirement in Texas to include the "H" on horizontal wells. I will try to check the permit form to verify.

In theory a company could complete multiple laterals in different formations but I belive it is unlikely. In the Austin Chalk operators did multiple laterals (up to 6) but they were all in the Austin Chalk Formation.

Permalink Reply by king john on April 21, 2009 at 2:43

thanks again les b.
i was looking at an amended permit and the info on targets was probably from the old vert. permit.
kj

Permalink Reply by king john on April 22, 2009 at 7:08

les b.
if you check this it seems to be only you and me in here. i would greatly value the oppritunity to ask a couple more questions.
i am trying to understand the term field allowables. i understand in texas there are guid lines but not a buy the book policey for well spacing. is it determined by the production and what zone it is from? if so can an operator muddle the production statistics to get more wells on a given piece of property?
also would it be normal for 1 well in an allocated unit to take up over 200 acres?
the well started off at either 13 or 18 mmcfd and is declining rapidly.
yours truly,
kj

Permalink Reply by intrepid on April 22, 2009 at 8:59

kj, you two aren't the only one's here. Most of the rest of us are just quietly waiting on Les B.'s answer to your interesting question. :) Good discussion.

Permalink Reply by king john on April 22, 2009 at 10:03

intrepid
thanks, glad to hear from you. was starting to think i was having a one on one.
les B. - the term in above question is not allocated unit but rather a proration unit with over 200 acres allocated to the well as best as i can figure.
kj

Permalink Reply by Les Bamburg on April 22, 2009 at 17:39

KJ, my apologies for the delay in responding as I am on the road this week. I am not really qualified to answer the questions since I have limited understanding of the Texas allowable rules.

My impression is a well is given an allowable equal to its initial test rate. So, a well that tested at 10 MMcfd in a 200 acre unit would establish a well & unit allowable of 10 MMcfd. If the operator downspaced the unit by drilling 3 more wells the unit would have a 50 acre spacing. If these three new wells each tested at 5 MMcfd the unit would an allowable of ~ 25 MMcfd.

Permalink Reply by king john on April 23, 2009 at 0:03

Les B.
thanks, thats a better understanding than i had before.
safe travels this week and looking forward to your future comments and explanations.
kj

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