Principle of Sri Lanka Explosion-Proof Well Logging Optical Cable
Principle: Based on Rayleigh scattering to capture acoustic signals along the wellbore. Application: DAS is used to detect and locate leaks, monitor cement integrity, and identify mechanical issues within the well. Permanent downhole fiber-optic cables are critical infrastructure in wellbore monitoring systems, ensuring reliable transmission of data for applications such as distributed temperature, acoustic, and strain sensing (DTS, DAS, and DSS)—all with one 1/4-in control line. These include several distributed methods, where data is recorded with high spatial and temporal resolution over long distances using the optical fiber as a sensor, exploiting different scattering mechanisms.
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