Replies to This Discussion

Permalink Reply by John Cooper on January 4, 2011 at 6:03

Okay, got a little curious and looked up some more information.  To date, this well has produced app 6.7 BCF and appears to still be going strong.  They frac'd an interval from 12230 - 12300 feet, and I assume this is the producing section.  This well is slightly deviated, so any measured depth will need to be adjusted for that.  Finally, the are reporting this production to be from Cotton Valley (Stockman).  Got all this on the Texas RR Commission site - it's a really good resource, but kind of difficult to use.  The API number to use on that site is 419-31266 - a portion of the API number I posted earlier.  Hopefully this helps out.

• ▶ Reply

Permalink Reply by jeff boler on December 1, 2011 at 15:55

Looks to me like the found a thin, highly permeable sand sandwiched in the Bossier Shale... Much like the pay-zones of the Deep-Bossier & Armorusa Fields... this sort of sand is called a turbidite...

• ▶ Reply

Permalink Reply by Robby Patterson on December 1, 2011 at 16:25

Pinnacle Reef: In 1981 XTO/Marathon drilled the Marshall A in Leon County near the Freestone Line.  The Marshall's lived on the place.  Mr. Marshall passed away before the well was drilled.  Mrs. Marshall's first check was over a million dollars and the well is still producing.  A number of wells were drilled in the immediate vicinity with no more success.  The best way to describe the "target" in the Pinnacle Reef formation is a coke can sitting on the sand.  If you drill anywhere but the top of the coke can, you miss it.  Other succesful Pinnacle wells in the area include the Poth wells in Leon County.  There was a Pinnacle Reef play in 1994-1996 in Anderson, Freestone, Leon, and Robertson Counties.  Very few successful wells. Some theories are that the reef fairway runs in an easterly direction through Louisiana.  Other people think it runs in a northeasterly direction and "ox bows" and heads back to the gulf.  I am sure there is much better data available, but this is first hand experience.

• ▶ Reply

Permalink Reply by Robby Patterson on December 1, 2011 at 17:42

Thanks.  Of course, there are a lot of other problems with the Pinnacle Reef.  Difficult to complete, problems with permitting sour gas pipeline, etc.

• ▶ Reply

• ‹ Previous
• 1
• 2
• Next ›
• Page