| Sort Wells By
                                                                                     | Petra can display wells by UWI, WSN, Label, and Well Short Name.
                                                                                     | 
                                                                            
                                                                                | Choose From
                                                                                     | ·Selected Wells -  Limits the available well list to only the wells currently selected in the main module.  
                                                                                     ·All Wells:
                                                                                     o In project mode, displays all wells in the project. 
                                                                                     o In prospect mode, displays the wells selected in the active prospect.
                                                                                     | 
                                                                            
                                                                                | Well List
                                                                                     | This list contains the wells available for selection. 
                                                                                     | 
                                                                            
                                                                                | Extended Selection Mode
                                                                                     | Determines how wells are selected from the well list:
                                                                                     ·OFF  Clicking on a well highlights and selects it.  Clicking on a well again deselects it.
                                                                                     ·ON  Enables click and drag to select multiple adjacent wells. 
                                                                                     | 
                                                                            
                                                                                | Load
                                                                                     | This option will load a list of wells from a saved UWI list.
                                                                                     | 
                                                                            
                                                                                | Save
                                                                                     | Saves currently highlighted wells to a UWI list.
                                                                                     | 
                                                                            
                                                                                | Save WSN
                                                                                     | Saves currently highlighted wells to a WSN list.
                                                                                     | 
                                                                            
                                                                                | Invert List
                                                                                     | Inverts the selection status of each well in the list.
                                                                                     | 
                                                                            
                                                                                | Select All 
                                                                                     | This button will select all wells on the available well list.
                                                                                     | 
                                                                            
                                                                                | Select None 
                                                                                     | This button will deselect all wells on the available well list. 
                                                                                     |