Replies to This Discussion

Permalink Reply by obed w odom on October 13, 2012 at 3:18

You could be right, and I hope you are, but I had thought that the advantage of horizontals was to get more total fractured area, thereby increasing initial production, and that the decline rate would not be greatly different between a horizontal and vertical.

Permalink Reply by ddozier on October 13, 2012 at 6:35

that would be correct, Horizontals with fracking significantly increases the flow area.  This acts to decrease the flow pressure drop across the formation face thereby increaseing the production.   theoretically anyway.

It is my thoughts the verticals were drilled for information not specifically for completion purposes.  Remember this is still a relatively young play and information is being developed.

 

 

Permalink Reply by Bradley McWilliams on October 13, 2012 at 15:25

I can only base what I know on my limited experience, but here in the F'ville, the first few wells were verts, but that was only to test the formation itself to see if it had the possibility to produce gas.  The production was never attempted with verts, they started doing horz from the start.  I would guess that is what AIX is doing, proving potential, with production to come later...

Permalink Reply by Skip Peel - Mineral Consultant on October 14, 2012 at 11:56

800,000 cubic feet of gas is normally reported as 800 mcf.  And is relatively insignificant when reported on an open choke. The AIX GARRETT L&T #1 officially reported the following IP.

COMPLETED 12-13-11; GAS; LWR SMACKOVER; 800 MCFD; 64/64 CHOKE; 10 BWD; 100# FP; 100# CP; PERFS 11,442-11,475' MD

Permalink Reply by obed w odom on October 14, 2012 at 12:52

Skip, the completion report on file with LA DNR does show 110 barrels of 58 gravity oil or condensate per day, as gauged on 1/9/2012, in addition to the figures for gas and water reported by SONRIS Lite:

http://ucmwww.dnr.state.la.us/ucmsearch/UCMRedir.aspx?url=http%3a%2...

How long it produced is another question, as it was re-completed from the Haynesville sand in Feb 2012.

Permalink Reply by Skip Peel - Mineral Consultant on October 14, 2012 at 13:04

obed, the clue to the short production life is in the pressure.  And pressure is the key for SWN in completing an economic L SMK horizontal well.

Permalink Reply by obed w odom on October 15, 2012 at 8:47

I see on SONRIS Lite that the Garrett L&T No. 2, in the same section as the Garrett L&T No. 1, was completed on Sept 5, 2012 from the Smackover Gray sands, to produce 50 BOPD and 60 MCFD. This is the farthest north that I have seen production from the Gray sand. Perforations are over a long interval, from 10032 to 11550 feet,

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

Permalink Reply by Skip Peel - Mineral Consultant on October 15, 2012 at 8:56

Also the C M Smith Est #1:  COMP 9/21/12; GAS; HAYNESVILLE RC; 330 MCFD; 24/64 CHOKE; 240 BWD; 300# CP; 901# FP; PERFS 9820-9910' MD

Permalink Reply by obed w odom on October 16, 2012 at 6:44

Looking at the report filed with the LA DNR for the Garrett L&T No. 2, I see that it was actually perforated in the Gray sand from 11545 to 11558 feet and then one week later it was perforated at 8 different intervals in the Haynesville sand from 10032 to 10310 feet. Then the production from the Haynesville and Gray sands were commingled. I don't see any figures for how much of the total production is coming from the Gray sand. Also, the perforation interval in the "Gray sand" looks suspiciously similar to the perforation interval of 11442-11475 feet in the Garrett L&T No.1, where the formation was called "Lower Smackover," So it seems unclear whether this is really the Gray sand or the Brown Dense.

http://ucmwww.dnr.state.la.us/ucmsearch/UCMRedir.aspx?url=http%3a%2...

Permalink Reply by Karen Jones on October 15, 2012 at 18:08

Does this effect Township 22 North, Section 6, Range 5 West

Permalink Reply by obed w odom on October 16, 2012 at 4:18

Karen, your section is about 7 miles east and 1 mile south of the Garrett L&T wells, and the Smackover contour lines do seem to run in a southeasterly direction, so the Smackover geology in your section could be similar to that in the Garrett L&T wells. However, I understand that the Gray sand can be quite variable over even short distances, so it is difficult to pinpoint. The Brown Dense is more uniform, but the jury is still out as to whether it can be made economically productive anywhere.

Permalink Reply by Skip Peel - Mineral Consultant on October 19, 2012 at 13:13

Latest AIX completion -

HAY RA SUB;LA MINERALS #1 COMP 10/15/12; GAS; HAY RA; 6500MCFD; 25/64; 2450# FP; PERFS 10184-10427' MD

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