Flow Conditions

Use the settings in this section to enable or disable flow conditions, and to adjust a condition's set point. Flow Conditions are used to determine when to open the sales valve and allow the well to flow. All enabled flow conditions must be accepted before the well is allowed to flow. Flow conditions are evaluated in the Wait For Flow state. When all enabled flow conditions are met the plunger control loop will move to the After Flow Delay state.

 

Each flow condition, except for the Minimum Off Time condition, has an associated configurable delay. This delay is implemented between the time that the condition is first met and then subsequently accepted. If the condition is no longer met during the delay period, the delay timer is reset and the program waits again for the condition to be met.

 

The delay is used to prevent a short term upset from making a condition appear as if it is met. The delay can be disabled by setting it to 0.

 

For example, if the value of Minimum Tubing Pressure is 500, and the Minimum Tubing Pressure Delay is 30, the actual tubing pressure must be less than the limit for 30 seconds before the condition is accepted.