The ultrashort-radius radial system

This paper discusses a group of interrelated horizontal drilling and completion technologies, collectively called the ultrashort-radius radial system (URRS), developed and being progressively applied in the field. Multiple radials can be placed at the same level and on multiple levels. Three-dimensional (3D) surveying is supplied. Horizontal completions can be provided, including 100%-fill gravel packing, in-situ electrolytic perforation and cutting, and flexible sand barriers (FSB's). Initial field applications were in unconsolidated formations.