Ziebel’s answer products are based around state of the art Distributed Fiber Optic technology. Ziebel uses both Distributed Acoustic Sensing (DAS) and Distributed Temperature Sensing (DTS) in an integrated manner to provide easily understandable answer products for our customers. Distributed Temperature and Distributed Acoustic measurements are obtained by firing pulsed lasers down multi-mode and single mode optic fibers introduced into the well by Ziebel’s Z-Rod. The rod and associated fibers then act as thousands of temperature sensors and acoustic sensors recording simultaneously along the length of the rod.

The DAS and DTS systems are an advanced variant of Optical Time Domain Reflectometer (OTDR) instrumentation that monitors the coherent Rayleigh backscatter noise signature in a fiber optic cable as pulsed light is sent into the fiber. The coherent Rayleigh noise generates fine structure in the backscatter signature of the fiber cable. The system focuses on the Raleigh component to increase its prominence in the backscatter trace.