DTS Fiber Information The optical fiber used for distributed temperature surveys The date the fiber is installed. The company that installed the fiber in the wellbore. The date the fiber was de-installed from the wellbore. The diameter of the capillary tube into which one or more fibers will be installed. If the installation has fibers that go to different wellbores, only those fibers installed in the parent wellbore should be included in this instance. The properties of the fiber or fibers installed in the wellbore.