With the OPTICall thermal profile and investigation service, you can track wellbore fluid movements, evaluate downhole performance, and diagnose production issues instantaneously. The OPTICall service combines the features of permanently installed fiber-optic distributed temperature sensing (DTS) systems with the ease of use of standard slickline to provide thermal profiling of the wellbore. It is ideal for mature wells that were completed before DTS was available or where the installation of permanent DTS was uneconomical.