Suitable for oil wells, gas wells, coal mines or under high temperature conditions. The cables marked with Dry; They are a series of cables in which the typical water blocking the intermediate tubes (gelatin, water swelling tape or powder) is replaced with a solid foamed. Continuous temperature-depth logs, especially when recorded in boreholes under thermal equilibrium conditions, provide detailed information of the subsurface thermal structure, which for example, is necessary for reliable heat-flow density determinations and rock thermal properties. Abstract—Distributed temperature sensors (DTS) measure tem-peratures by means of optical fibers. Initiated in the 1980s, DTS systems have undergone sig-nificant improvements in the technology. • To show that DFOS data can conventional production logging is not possible. DTS is a well-established tool for quantitative production profiling. DTS thermal inversion performed to allocate. Paper presented at the SPE/ICoTA Well Intervention Conference and Exhibition, The Woodlands, Texas, USA, March 2020. This study presents the evolution of downhole fiber optics to a new hybrid electro-optical cable for coiled tubing (CT) applications. These monitoring systems help.
