re-Fracking Feeling by Senior Research Scientist Bureau of Economic Geology Jackson School of Geosciences The University of Texas at Austin

—– Forwarded Message —–
From: JP Nicot <>
To: kim feil <>
Sent: Monday, August 24, 2015 3:24 PM
Subject: RE: q on re-fracking
Dear Kim-
No new info, still kind of murky. There have been a number re-frac jobs, probably in the hundreds maybe low thousands but that’s nothing compared the number of frac’ed wells. Service companies try to stir up some business by promising that re-fracs are the thing to do but so far they are still not very widespread. I have the feeling that operators would rather start anew by drilling a new well nearby.
Jean-Philippe (JP) Nicot, Ph.D., P.E., P.G.
Senior Research Scientist
Bureau of Economic Geology
Jackson School of Geosciences
The University of Texas at Austin
Ph: 512 471-6246
Fax: 512 471-0140
From: kim feil []
Sent: Friday, August 21, 2015 7:08 AM
To: JP Nicot <>
Subject: q on re-fracking
Do you have any new info?
—– Original Message —–
From: JP Nicot
To: Jerry Lobdill ; Kim Feil
Sent: Thursday, June 30, 2011 6:32 PM
Subject: RE: re-frack question
Dear Ms. Feil and Mr. Lobdill-
I appreciate your interest in my work. It is true that refracing is the big unknown in terms of water use. Discussing the topic with staff from different companies or different staff members from the same company, I have received conflicting answers. My sense is that only those older wells fraced when the technology was still in development (vertical wells in the Barnett) are being refraced. The next couple of years will tell us if the practice will become systematic as the thousands of horizontal drilled in the Barnett have been producing for several years now. I’ve seen papers on multiple refracing episodes but it doesn’t seem to be the norm. The projections for water use in my report (to be soon posted on the TWDB website) assume no refracing.
I don’t have any specific information about stacked wells but it would make sense to do so only if the formation is thick enough. The oil and gas industry is very innovative and operators are trying out several approaches. That particular approach may or may not work as well as having more closely spaced laterals.  Methane migration would be related to the vertical section of the wellbore, so I wouldn’t expect any change in the odds of that happening.
Besides the point that water is either privately owned (groundwater) or appropriated through a water right system (surface water), increasing its price will likely hurt farmers, municipalities, and manufacturing more than the oil and gas industry for at least 2 reasons: (1) when you add up the numbers, oil and gas operators don’t use that much water, and (2) there are many other costs, such as hauling and disposal, that go into their total cost of water management.
I hope this helps
JP Nicot
Jean-Philippe (JP) Nicot, Ph.D., P.E., P.G.
Research Scientist
Bureau of Economic Geology
Jackson School of Geosciences
The University of Texas at Austin
Ph: 512 471-6246
Fax: 512 471-0140
From: Jerry Lobdill
Sent: Thursday, June 30, 2011 7:36 AM
To: JP Nicot
Cc:; Ed Ireland
Subject: Re: re-frack question
Importance: High


I’m Jerry Lobdill. I am a chemical engineer  and physicist (retired).  I have been studying the technology used in drilling and completing horizontal gas wells since 2005.

I am unable to find more than a very few wells in the Barnett Shale whose production histories are consistent with even one successful refrack job.

In the piece Mr. Nicot suggested that some companies are refracking after, say, five years (quote below)

Nicot said one of the unpredictable variables is “re-fracking.”
“The big question is: Should you come back after, say, five years and refrack the well again, do the same thing to try to get more gas? And it seems like some companies do it, but most don’t ­ but that may change,” Nicot said. “And obviously, that’s a big unknown in terms of water use.”

Mr. Nicot, please tell me what companies are doing this and if possible give me the API number of a refracked well.

I also ask Mr. Davis and Dr. Ireland for the same information if CHK is one of the companies that does refracking every 5-7 years, as was stated several years ago.

Please respond to this request by July 7, 2011 or send me email saying when I may expect an answer.

Thank you very much.

Jerry Lobdill


At 11:44 PM 6/29/2011, Kim Feil wrote:

Hello, I saw your name in an article
and was wondering if you knew of specific wells that have actually been successfully refracked?

My understanding is that every 5 to 7 years that horizontal wells need to be refracked in order to keep the 20 to 30 year promise of well production for natural gas.

In speaking with Charles E Davis, a Chesapeake employee last night, I thought he said that Chesapeake doesn’t plan on refracking their wells.

I heard that a well can be re-fracked up to ten times, but I never came across a well that has been refracked yet.

I also want to know about stacked wells (Carrizo has experience with this).  Can stacked wells also be refracked? Are stacked wells more likely to have methane migration?

The water intensive fracking process is worsened by the alleged need to be refracked at a later date and with the drought conditions, I wonder just how profitable drillers can be if the price of water increases for everybody?

Thanks for at least answering my refrack question-if you have the well(s) name or lease number, that would be great.

Kim Feil


About Kim Triolo Feil

Since TX Statute 253.005 forbids drilling in heavily settled municipalities, I unsuccessfully ran for City Council Seat to try to enforce this. Since Urban Drilling, our drinking water has almost tripled for TTHM's. Before moving to Arlington in 1990, I lived in Norco’s “cancer alley”, a refinery town. It was only after Urban Drilling in Arlington did I start having health effects. After our drill site was established closest to my home, the chronic nosebleeds started. I know there are more canaries here in Arlington having reactions to our industrialized airshed (we have 55-60 padsites of gas wells). Come forward and report to me those having health issues especially if you live to the north/northwest of a drill site so I can map your health effects on this blog. My youtube account is KimFeilGood. FAIR USE NOTICE: THIS SITE MAY CONTAIN COPYRIGHTED MATERIAL THE USE OF WHICH HAS NOT ALWAYS BEEN SPECIFICALLY AUTHORIZED BY THE COPYRIGHT OWNER. MATERIAL FROM DIVERSE AND SOMETIMES TEMPORARY SOURCES IS BEING MADE AVAILABLE IN A PERMANENT UNIFIED MANNER, AS PART OF AN EFFORT TO ADVANCE UNDERSTANDING OF THE SOCIAL JUSTICE ISSUES ASSOCIATED WITH EMINENT DOMAIN AND THE PRIVATIZATION OF PUBLIC INFRASTRUCTURE (AMONG OTHER THINGS). IT IS BELIEVED THAT THIS IS A 'FAIR USE' OF THE INFORMATION AS ALLOWED UNDER SECTION 107 OF THE US COPYRIGHT LAW. IN ACCORDANCE WITH TITLE 17 USC SECTION 107, THE SITE IS MAINTAINED WITHOUT PROFIT FOR THOSE WHO ACCESS IT FOR RESEARCH AND EDUCATIONAL PURPOSES. FOR MORE INFORMATION, SEE: HTTP://WWW.LAW.CORNELL.EDU/ TO USE MATERIAL REPRODUCED ON THIS SITE FOR PURPOSES THAT GO BEYOND 'FAIR USE', PERMISSION IS REQUIRED FROM THE COPYRIGHT OWNER INDICATED WITH A NAME AND INTERNET LINK AT THE END OF EACH ITEM. (NOTE: THE TEXT OF THIS NOTICE WAS ALSO LIFTED FROM CORRIDORNEWS.BLOGSPOT.COM)
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One Response to re-Fracking Feeling by Senior Research Scientist Bureau of Economic Geology Jackson School of Geosciences The University of Texas at Austin

  1. worthwhile article on re-fracing; I haven’t seen any re-fracking in my county in Pa. either and we have horizontal gas wells since 2008….don’t know what “stacked” wells are?

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