Cotton Valley Horizontal Wells and Depth Definitions

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Permalink Reply by Skip Peel- Independent Landman on December 3, 2009 at 7:15pm

There are a number of drilling unit orders that referenced the CV or LCV but utilized depth definitions that included the Haynesville (HA) formation (Les. B has posted a list of those in the Woodardville Field, there are other such wells in other fields). A number of similar units were formed before the Commissioner issued an order prohibiting the inclusion of the HA shale in a definition with sandstone formations(summer 2008). The well used for a depth definition in this application is EXCO's Hodde etal 14 No. 1 (239210) and the CV formation is defined as that interval between 10,074' and 13,900'. I will solicit the opinion of the site experts on this one but I suspect that 13,900' is deeper than the HA and includes the Smackover (SMK). The well referenced was recently re-completed (09/09/09) and is producing from perforations 11,615" to 12,010'. This well does not violate the Commissioner's order mentioned above as the HA in the Kelleys Field of Jackson Parish is sand not shale. North LA, we won't know exactly what interval will be produced in this well until completion data is available. Then we can examine the perforation depths and make a determination. Wherever those perforations occur EXCO will still call this well a CV horizontal. We should hope it's a good well since it would encourage additional horizontals in areas outside of the boundaries of the shale.

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Permalink Reply by North LA on December 3, 2009 at 8:21pm

I realize it's not a HA well but it will still be interesting to see what a horizonatl CV will do. There is a formation in the area called the CV black shale. I wonder if that's what they are going after or I wonder if it's just the sand. Whatever it is it will be interesting to do a follow up in 3-4 months.

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Permalink Reply by Skip Peel- Independent Landman on December 3, 2009 at 8:33pm

My point is that the depth definition is much more important than what formation the permit lists. It could be a HA well. Then again it could be a SMK well. Or a Lower Cotton Valley. The depth definition includes all three formations. The one, or two, actually produced will be revealed by the depth of the perforations. It will be interesting to see the completion announcement. Whatever formation is ultimately produced let's hope it's a good one.

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Permalink Reply by Bacon on December 3, 2009 at 7:20pm

Questar completed a CV horizontal a couple months ago that was doing 5 mmcfd. It'll be very interesting to see how Exco does. Their HA wells are fantastic.

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Permalink Reply by Skip Peel- Independent Landman on December 3, 2009 at 7:30pm

Bacon. Is the Questar CV horizontal you mention producing from the CV or from the HA? There are a number of CV and LCV wells that are actually producing from the HA. You might want to go back and look at the depth of the perforations in that Questar well. If it is actually a CV completion it's a heck of a good well. If it is a HA completion, then it's below average.

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Permalink Reply by Bacon on December 3, 2009 at 7:38pm

9781' is the TVD. That section hasn't been unitized for HA yet if that makes any difference. The HA wells are around 12K' right next door.

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

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Permalink Reply by Skip Peel- Independent Landman on December 3, 2009 at 7:43pm

It doesn't have to be unitized for the HA. The HA, and the SMK for that matter, is already included in the CV depth definition. That's what I was attempting to point out.

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Permalink Reply by Bacon on December 3, 2009 at 7:54pm

Ahh, ok. None of those issue in this area though ( I think, haha).

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Permalink Reply by Skip Peel- Independent Landman on December 3, 2009 at 7:57pm

I think you're right. I'm just glad that some prospects other than the HS and some areas other that the parishes associated with the HS are getting some action. Successful horizontal completions will spur increased interest, and development, in a wider area of N. LA.

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Permalink Reply by Spring Branch,mineral owner on December 3, 2009 at 8:44pm

Both Questar and El Paso have continued to drill horizontal Cotton Valley wells in adition to their horizontal Haynesville wells. In the case of Questar, they are drilling horizontal Cotton Valley wells in 14/11 Sections 4,5,& 6 and just a day or so ago filed a unit application for a horizontal Cotton Valley well in Section 8. I know these are true Cotton Valley wells for two reasons: 1) the TVD is too shallow for a Haynesville, and 2) they don't have the deep rights, Petrohawk does!
Goodrich is drilling Horizontal Cotton Valley wells in Panola/Rusk Counties, Texas. As I've said on this site before, horizontal Cotton Valley wells were going to be the next "big thing" until the arrival of the Haynesville.

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Permalink Reply by Checkmateking on December 3, 2009 at 8:47pm

Check out my thread on the horizontal oil play goin on in the Missionary lake field 23N 14W, awesome news.

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Permalink Reply by Skip Peel- Independent Landman on December 3, 2009 at 8:52pm

SB. I recall your comments concerning horizontal CV wells. And I have kept it in the back of my mind as I see companies filing unit applications for multiple formations. We ofttimes tend to become too focused on HA horizontals. The productive formations in many of those multiple zone applications could very well turn out to be CV or SMK horizontals.

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