A couple of articles sent to me by Don:
Salt deposits, July, 2012, article:
https://www.dmr.nd.gov/ndgs/newsletter/2012%20JULY/Impact%20of%20the%20Dissolution.pdf
Sand and gravel, July, 2012, article:
https://www.dmr.nd.gov/ndgs/newsletter/2012%20JULY/Sand%20and%20Gravel%20Resources.pdf
These articles and articles like these are archived under the "Geology" tab at the top of the blog.
Love all the information you bring forward. It is interesting how much and how big the salt zones are in nd. That is one reason we have to use an oil base mud on the vertical section in nd also the Charles salt can be very sticky while drilling which can present issues and we have to run heavier casing up past the Charles salt.
ReplyDeleteThank you for your kind words. I have to thank the readers for sending me many / most of the interesting articles I post.
DeleteBy the way, did you note that two of the busiest counties in North Dakota's oil patch do not have permitting requirements for sand and gravel pits? At least that's what I thought I read in the "sand and gravel" article: Williams and McKenzie counties don't have permitting requirements for sand and gravel.