Abstract: Distributed Acoustic Sensing systems may be employed for monitoring wellbore events occurring within the interior of a tubular conveyance such as a coiled tubing strand. A signal cable carried by the coiled tubing strand may provide a measure of acoustic energy as a function of position in the wellbore such that a location of a ball dropped through the coiled tubing strand may be monitored in real time. The signal cable can be used to determine whether the ball encounters an obstruction within the coiled tubing strand, and/or can confirm that the ball has properly seated on a downhole tool actuated by engagement with the ball. In other embodiments, the location and density of a liquid sand flow or other fluid mixture can be monitored, and/or the location of a leak through a lateral wall of the coiled tubing strand can be detected.