Field Application Example for BARAD-658
I found your commentary interesting. Thanks for posting. About 10 years ago or so, I was trying to figure out a way to grout PVC casing to depths of 400' to 500' or so, for domestic water wells. We have an area where we have to set 400'...
We have done several commercial geothermal pump and reinjection projects. All of them terminating in fractured limestone with some of the pumping and re-injection capacities reaching over 1,000 GPM. We have utilized neat cement in all...
The report I saw concerning the Nebraska grout study showed water migration down the PVC cement interface.
I suspect that the heat of hydration cased the PVC to expand. Then the cement hardened, the PVC cooled and pulled away from the cement.
I just saw your post from yesterday. So when I replied earlier, I had not seen it. I am curious as to why you aren't willing to consider bentonite grout slurries as an option for pressure grouting casing (am I correct in my interpretation...
Spafford and Sons Water Wells
Shawver Well Company Inc