The purpose of this article is to present rough guides, or “rules of thumb”, to consider when preparing a Flowing Gradient Survey job program for gas lifted well. These recommendations will guide Production Engineers when preparing the survey instruments, planning the survey stop depths and times, when planning to obtain the bottomhole pressure data, as well as when preparing the job program for running pressure & temperature survey.
Preparing the survey instruments:
Run sinker bars as needed to overcome pressure surges when entering the wellhead from the lubricator.
Sampling rate should be at 30-second intervals.
Calibrate the electronic gauge with its software prior to each use.