Gas Lift Troubleshooting
1 Year 24/7
What you will learn
Participants will acquire a deep understanding on how to troubleshoot a Gas Lift well. The Gas Lift Troubleshooting Method explained in this training has been developed by the author of the course himself and is therefore not available anywhere else in the industry.
COMING SOON: This course is in the final stages of production. Over 100 video lectures have been published. We will be adding a few more video lectures and quizzes within 30 days. Use discount code PreLaunch during checkout and get 45% off by joining prior to the official launch.
According to many industry experts Gas Lift is the least understood artificial lift method, but the reason behind that is not its complexity. While when you do things wrong on other artificial lift methods (e.g. ESP) your well will stop producing, a Gas Lift well will often keep on producing even with a bad design. Hence many operators often do not realize that their Gas Lift well is not producing at its full potential and don’t pay attention to it.
There is therefore a very significant potential for production increase by understanding the principles of Gas Lift and this is a huge opportunity for any engineer willing to master this artificial lift method.
This class is the 5th of the series of courses related to Gas Lift artificial lift. It follows the courses “Understanding the Forms of Gas Lift”, “Gas Lift Equipment”, “Gas Lift Unloading Sequence and SPM Design” and “Gas Lift Optimization and Design with Existing Mandrels”. It explains how to find wells that require troubleshooting. It then describes a method to properly identify the issue that the well suffers from, list the different diagnostics that can be performed to confirm the issue and proposes solutions to be implemented to solve the problem. Course then guide you across must know troubleshooting tools, methods and operations. Student will learn how nodal analysis (Quicklook function in Prosper) can help them in their diagnostic, the different methods that can be used to start a Gas Lift well, the effect of temperature on Gas Lift valve opening pressure… A large section of the training is dedicated to leaks, how to detect them (tubing casing communication tests), what survey can be done to precisely identify their depth (flowing pressure and temperature surveys, spinner, spectral noise logging tool…) and how to fix them. Several troubleshooting exercises will then be shown in order to get some practice using the presented Gas Lift Troubleshooting Method.
Understanding of the well production mechanisms (inflow & outflow) is preferred
Knowledge of the existing forms of Gas Lift and Gas Lift equipment (especially Gas Lift valves and orifice)
Understanding of the Gas Lift unloading sequence and Gas Lift optimization
Basic knowledge on well architecture
Awareness on the oilfield terms.
A document from world Gas Lift expert that describes an alternative method to propose a Mandrel Spacing design (the so called 20-80 rule)
Links to an article that explains an alternative method for Mandrel Spacing design for unconventional wells
Links to a presentation of a coiled tubing Gas Lift example
- The troubleshooting challenge – how to identify wells that need troubleshooting
- Troubleshooting methodology
- Problem & symptoms table
- Troubleshooting flowcharts presentations
- Review of all possible issues one by one, their symptoms, the available diagnostics, the possible causes and the solutions
- Troubleshooting summary – The most useful solutions that should always be tried
- Nodal analysis – The Quicklook and Multipoint Quicklook in Prosper
- The effect of temperature on Gas Lift Valve opening & closing pressure
- The different method to start a Gas Lift well and when to use each of them
- Generalities on tubing casing leaks
- Tubing casing communication tests - Procedure and depth estimation
- Leak depth methods of identification review – description, advantages and limitations
- Pressure/Temperature/Spinner surveys (and also how to use them for monitoring)
- Multi finger caliper
- Leak detection tool by Peak Well System
- Pony tail and tell tale
- Spectral noise logging tool
- CO2 tracer aka WellTracer from AppSmiths
- Summary table for better selection of most appropriate method
- Description of available solutions to fix a leak
- Use of an Echometer to confirm a leak
- Troubleshooting exercises
- Barton Charts analysis
- Production, Petroleum or Well Performance Engineers to learn how to troubleshoot a Gas Lift well and review all the tools available to help them to do so
- Field Production Personnel to understand how to identify wells that need troubleshooting and what can be done at their level to solve the issue
Specification: Gas Lift Troubleshooting
1 Year 24/7
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1 Year 24/7