Because of their success, ultra-high sand concentration (USC - a commonly used field acronym) treatments have become very popular in Oklahoma. To-date, more than 50 wells have been completed using USC treatments.
This paper presents the state-of-the-art on USC in hydraulic fracturing with field data and documented results. Case histories of the two representative wells selected from different areas of the state, are discussed in detail in the paper. Well production data before and after the USC treatments, are compared. A detailed USC job design procedure is also outlined. Furthermore, some suggestions are made to help the reader in designing and conducting USC treatments.