Regular readers of the blog know that I am inappropriately excited about the "halo" effect -- that jump in production seen in Bakken wells when they are brought back on line after being off line for a few weeks or a few months while neighboring wells are fracked. In some cases (rarely) the "parent" well is off-line for less than a month.
I tag posts discussing this phenomenon as "halo" or "jump in production." I noted the phenomenon almost a decade ago but had not seen validation from a credible source.
[The very first post that was tagged with the halo effect was dated August 19, 2010. Link here: http://themilliondollarway.blogspot.com/2010/08/another-first-for-north-dakota_19.html.]
I did receive a phone call from an analyst at the largest fracking company in the Bakken at that time about six years ago asking me about my observations. The analyst said his company was referring to these as "parent/child" wells. I did not post the specifics of that phone call at that time assuming that some of the information I had been told was proprietary.
[I was in Belmont, MA, when I received the phone call. I was last in Belmont, MA, in 2013: that's why I know that the phone call was at least six years ago.]
I continue to look for validation from credible sources. About a month ago, maybe two or three months ago, I started getting hints of validation from Whiting. I think I have posted some of that, but I can't recall for sure.
Break, break.
It's my observation that the parent / child interaction in the Bakken is "positive." Either there is no effect, a subtle effect, or a huge positive effect, but I have not seen any suggestion that the parent / child interaction is "bad news" in the Bakken.
On the other hand, however, there have been numerous stories in the popular press that this is not the case in other shale plays. There are concerns, particularly in the Permian, that new wells (or "children" wells) are having an adverse effect on older wells ("parent" wells).
Break, break.
Tonight, in the process of looking for something else, I ran across this slide in a recent Whiting presentation.
The link: https://event.webcasts.com/viewer/event.jsp?ei=1260399&tp_key=d761d52d8c.
Slide #9.
Screenshot:
Note: "Parent / child well activity [in the Bakken] is positive vs experience in other shale plays."
By the way, that one slide above has many, many other interesting data points.
