Use the SCADASuite Plunger Lift application to optimize production from your gas well over the well's lifecycle, even before a plunger is actually installed in the well. Protect your asset from damage via protection settings. Reduce integration costs, training costs, and downtime by using the same application on all of your gas wells.
The Plunger Lift + Gas Lift application supports up to 4 completely independent wells. The application can be licensed for only as many wells as you need. Gas Lift is an optional, licensed feature that is added to each plunger control loop.
Most of the information on this page is summarized in an easy to read and distribute format in our Plunger Lift and Gas Lift App Note.
The Plunger Lift + Gas Lift application supports up to 4 completely independent wells. The application can be licensed for only as many wells as you need. Gas Lift is an optional, licensed feature that is added to each plunger control loop.
Most of the information on this page is summarized in an easy to read and distribute format in our Plunger Lift and Gas Lift App Note.
Plunger Lift Features
A summary of the features of the SCADASuite Plunger Lift application are highlighted below. For a complete list of features please see the material on the Resources page, especially the reference manual. Or, download the software from the Resources page and try it for yourself.
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Protection Settings
The SCADASuite Plunger Lift application includes configurable protection for the following situations. Protection can be enabled or disabled for each option. A diagnostic log entry is made when a protection mode is entered with the details of what caused the upset.
Condition Based Approach
The SCADASuite Plunger Lift application uses a condition based approach to determine when to open or close the sales valve and allow the well to flow or be shut in. Each condition is enabled independently, and each condition also has a configurable delay between the time that the condition occurs and is accepted which allows for rejection of fleeting changes. Flow Conditions All enabled Flow Conditions must be met before the sales valve is opened and the well is allowed to flow. This is unlike Shut In Conditions, where any single shut in condition being met will cause the well to shut in.
Shut In Conditions Once any single enabled Shut In Condition is met the well will be shut in. This is unlike flow conditions, where all of the enabled flow conditions must be met to allow the well to flow.
Automatic Optimization
When configured to do so, the SCADASuite Plunger Lift application will automatically adjust both flow condition and shut in condition set points to try to force normal plunger arrival. If the plunger arrival is early, the last flow condition that was met will be adjusted to make the well flow for longer on the next cycle. If the plunger arrival is late, the first shut in condition that was met will be adjusted to shut the well in for longer on the next cycle. Conditions will only be adjusted within a user configurable range. Each condition has its own allowable range. This allows you to have complete control over how optimization works. |
Gas Lift Features
The SCADASuite Gas Lift application allows you to inject gas down hole in a controlled fashion to increase production from your well. The application uses PID control to set the position of an injection valve to inject just the amount of gas that you want. The application supports multiple control modes, including a plunger mode where gas injection occurs at various times during the plunger cycle.
Gas Lift is an optional licensed feature to the Plunger Lift application. A summary of the features of the application are highlighted below.
For a complete list of features please see the material on the Resources page, especially the reference manual. Or, download the software from the Resources page and try it for yourself.
Gas Lift is an optional licensed feature to the Plunger Lift application. A summary of the features of the application are highlighted below.
For a complete list of features please see the material on the Resources page, especially the reference manual. Or, download the software from the Resources page and try it for yourself.
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Control Modes
The SCADASuite Gas Lift application supports the control modes listed below.
PID Control
In all control modes, the Gas Lift application manipulates the position of the injection valve to control either the actual injection flow rate, or the flow rate of the well. The application uses the same PID control algorithms as logic on the SCADAPack RTU for maximum reliability. The PID control loop can be configured for flow control, or for flow control with pressure override. When in flow control with pressure override mode, when the actual pressure exceeds a configured threshold, the PID algorithm will switch to controlling the pressure instead of flow to keep it under a safe value. Later on, if the pressure decreases, the PID will switch back to controlling flow. Pre-Arrival Injection Rate Optimization
When in plunger mode, the Gas Lift application can adjust the pre-arrival injection set point automatically depending on the plunger arrival history. If the plunger consistently arrives late, more gas will be injected. If the plunger consistently arrives early, less gas will be injected. The goal is to adjust the injection set point so that the plunger always arrives normally. |