wel-lok™ Perf-lok

About the application

The wel-lok™ Perf-lok was developed to isolate perforations in a cased hole completion for zonal isolation or well P&A. Unlike typical cement squeezes traditionally used for this purpose, the Perf-lok™ does not require squeezing as it is flows into the perforation tunnels by gravity due to its viscosity and density. Applying pressure to squeeze the cement can often cause the perforations to collapse and eliminate the ability to fill the entire void. The created plug can also be milled out inside the casing, maintaining a seal inside the perforations through its unique expansion properties.