6.4 - Level 4: Facility
A facility represents a central location under which a number of wells will be grouped, such as an onshore pad or offshore platform.
The Facility Properties dialog will automatically open when a new facility is created. To access the Facility Properties for an existing facility, right click on it in the Object Explorer. The Facility Properties dialog has the following features:
6.4.1 - Properties
Name: The name of the facility which will be displayed in the Object Explorer.
Azimuth North Reference: Either true north or grid north can be used as the azimuth reference. It is assumed that the azimuths entered into survey grids will be referenced to the option selected here.
Local Coordinate Reference: This defines the reference point for the well location, and is selected in the Field Properties dialog.
Lease /Hard Lines: The user can select to have lease / hard lines show at all levels within the Targets dialog. On will pre-select the lease / hard lines to be displayed from Field to Actual / Plan levels. Off will pre-select the lease / hard lines to be displayed from Field to Facility level only. When either on or off is selected, the user should then select apply. If there are a lot of lease lines and / or a lot of plans and surveys, then it may take a moment for Well Seeker to process this selection.
Show Map: This extends the existing dialog to include a Google Maps section. This will show the location of the positional data entered and can be toggled between map and satellite view using the Satellite checkbox. The map can also be zoomed in and out using the – and + buttons. This map location will only be accurate if the CRS selected uses WGS 84, as this is what Google Maps utilises.
Templates: Opens the Template Editor.
Locked: This checkbox allows the user to lock all the editable cells in the dialog. If NO password has been entered at Operator level in the set password section, then the user can freely select to lock and unlock the dialog. If a password has been added at Operator level, then the user must enter the relevant password to both lock and unlock the dialog.
6.4.2 - Template Editor
Clicking the templates button gives the user access to the Template Editor dialog. A template represents a number of surface locations, which the user can select from at Well Level. Templates are usually used for offshore platforms or subsea wells.
Click on Create New to create a new template, and enter the template name in the Name field. Enter a prefix in the Slot Prefix field, which will be applied to individual slot names. Save your changes at any time by clicking on the Apply button.
A facility can have more than one template associated. Previously created templates can be selected from the “Select template” combo box.
The current template will be deleted by clicking the Delete button. Templates cannot be deleted if one or more slots are in use by the well level.
The centre of the template describes the offset of the centre of the template to the facility reference point in terms of North / South and East / West co-ordinates.
The template geometry is defined by selecting the appropriate radio button in the geometry section.
Rectangular templates are defined by parameters in the rectangle section of the dialog.
The offset from the template centre is defined by the first two edit boxes and this represents the offset from the centre point defined in the template centre section. The number of rows and columns are defined in the “Rows” and “Columns” edit box and the clockwise rotation of the template is defined in the rotation section. The X and Y spacing is defined by the X and Y spacing boxes and the slot numbering can be specified from the drop-down menu.
Circular templates can be defined by the parameters in the Circle section.
If single slots are selected from the geometry section, then the slot locations and names are entered in the grid at the bottom of the dialog.
If rectangular or circle geometries are selected, the slots can be converted to single slots by clicking the convert to single slot button. It should be noted that this operation is not reversible.
6.4.3 - Facility Reference Point
Facility reference point: This is the reference location used for the facility. For an offshore platform, this is usually platform centre and for an onshore facility, this is usually the centre of the site. The reference point can be entered either as a latitude & longitude or as a map coordinate. This is defined by selecting the “Grid North / East” or “Lat / Long” radio button. The grid convergence for the facility reference point is displayed in the edit box marked “Grid Convergence”. This value will be applied when converting between grid north and true north.
6.4.4 - Facility Location Uncertainty
Facility Location Uncertainty: The horizontal and vertical uncertainty of the facility entered at 1 sigma. This value is used for EOU calculations.
6.4.5 - Rig Directions
Rig Directions: Provides a space where the user can leave a note on the location of the rig.
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