Need some wisdom on depths.....

Permit says "Completion depth" 10300 (Haynesville Shale)

 

The total depth of the well is permitted for 12500. How many feet thick is the Haynesville Shale on average for  Harrison County (south of I-20)? Is this normal for Haynesville wells to go 2200 feet below the completion depth?

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Replies to This Discussion

Permalink Reply by Todd M. Baker on May 7, 2011 at 1:35
CR: This means a 2200' lateral. Total depth is the same as total length of the hole. The wellbore will basically have a 10,300 verticle section and a 2200' lateral section.
Permalink Reply by Caddo Rat on May 7, 2011 at 8:33
Even if it's a vertical well and not a directional or horizontal?
Permalink Reply by adubu on May 29, 2011 at 12:12
Caddo rat---What's name of well? Is it permitted as horizontal or vertical? Many time a vertical well will be permitted couple thousand feet deeper than plan just in case they see something during drilling or change plans rather than admend permit.
Permalink Reply by Skip Peel - Mineral Consultant on May 29, 2011 at 12:40
The depths for Total Vertical Depth and Measured Depth listed on permits are an approximation and one that is usually deeper and longer than the actual completion.  You won't know either for sure until the well is completed and announced.  When a TVD and a MD depth are listed in a permit, it indicates a horizontal well.  TVD is Total Vertical Depth.  MD is Measured Depth and it indicates the total length of the well bore.  The difference between the two is the approximate length of the horizontal lateral.
Permalink Reply by Caddo Rat on May 29, 2011 at 14:32

It's a vertical well.

Permalink Reply by Skip Peel - Mineral Consultant on May 29, 2011 at 14:38
My response is intended to help members tell the difference between vertical and horizontal wells and is offered in response to Todd Baker's comment above.
Permalink Reply by adubu on May 29, 2011 at 14:46
CR- the shale (Bossier+haytnesville) is about 500 Feet so 12500 would get u thru the lime if operator decides to test lime
Permalink Reply by Caddo Rat on May 29, 2011 at 14:49
Thanks Adubu. 500 feet was the information I was looking for.
Permalink Reply by adubu on May 29, 2011 at 14:58
CR-- generally the Bossier is a little thicker than the lower part of the shale-- aka haynesville-- most haynesville in this area is 200-250' thick

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