CO2 tracer technology is a low cost effective method to quikly and reliably check if a gas lifted well is producing at its optimum conditions.
Actually, the CO2 tracer survey would detect the operating lift depth, multiple points of injection, tubing leaks.
References:
- SPE-133268-MS: Successful Application of CO2 Tracer Technology for Surveillance of Gas Lifted Wells, presented at the SPE Production and Operations Conference and Exhibition, 8-10 June, Tunis, Tunisia
- Gaslift diagnosis using WellTracer survey – successful trials in 20 wells of Petroleum Development Oman (PDO), paper presented at the 32nd Gas-Lift Workshop The Hague, The Netherlands February 2 – 6, 2009.
A newer movie with narration is available here:
https://www.youtube.com/watch?v=F_lzdwdLkAg