If the link fails to open, try cutting and pasting the url in a new browser window.
And enjoy the long weekend read, too.
When an AC well would start clogging up, UPR and others in the last play would acidize it and get the affected well going again. I can't say exactly what went on downhole, but I know it was an unexpected and unwanted expense for the operators. Sometimes a well would require repeated acidizing to stay in production. There were similar problems with the water injection wells that populated each drill site.
I suspect many operators would like to try some new techniques in the AC if oil was $100/bbl again.
If the wells would've stayed open, then the downhole acid treatment would've been correct. But the wells closed up. A geochemist (who has worked all over the world and who retired after many decades of experience with a major Seven Sister) told me about an effective chemcial treatment for chalk wells.
Very interesting article. Most of it was too complicated. I was able to pull a few facts from it and the maps were very good. We need all of the information that we can find to keep us more informed. Thank you for posting.