When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Alongside has always been the matured oil industry. Here a classical drilling model characterized as a helical fluid model is derived. As both industries are challenged to maintain a safe operation these notes present attempt to present both simple and only as complex of mathematics as needed.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.