The accuracy of determining leak dpeths is directly proportional to the accuracy of the surface measurements supplied to the WinGLUE™ model. If surface measurement equipment is well maintained and properly calibrated it is possible to determine the leak depth within one foot of the leak.
The WellTracer™ survey results are not affected by unstable tubing pressures. Instability in the casing pressure or injection gas rate, depending on the severity of the instability, may affect the duration of the WellTracer™ survey. The WellTracer™ survey will still provide results and reviewing the historical trend of the instablity will allow for proper analysis of the WellTracer™ survey.
There is no deferement associated with the WellTracer™ survey.
The baseline CO2 level of the well is established at the beginning of the WellTracer™ survey. When the injected CO2 returns to the surface there will be a spike in the CO2 level above the normal CO2 concentration of the well. High background CO2 concentration does not matter with WellTracer™.