PERFORATION-TUNNEL PERMEABILITY CAN ASSESS CASED-HOLE GRAVEL-PACK PERFORMANCE

摘要

Quantitatively defining the quality of a cased-hole gravel pack is difficult. Studies have shown that traditional quality indicators of a gravel-packed well, such as skin factor or well-flow efficiency, cannot be adequately correlated from reservoir to reservoir and from field to field. As a result, some investigators have developed a range of ranking criteria or their own quality indices. The full-length paper details the use of perforation-tunnel permeability (PTP) as an indicator of cased-hole gravel-pack quality.