Since the advent of low colloidal oil muds in the middle 70s, the system has been tried at several locations in the Rocky Mountains. The system has been used in nearly all basins with mixed results, but in general has proven to be a good choice for deep wells. This paper details the criteria for selecting a low colloidal oil mud over other mud types and documents known areas where the system was successful. In addition, guidelines are presented for estimating cost, along with recommendations for additional equipment and hook-ups required for conserving oil mud.

You can access this article if you purchase or spend a download.