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  • Well Spacing ("Gun Barrel") Diagram Mod for Spotfire®


    This article is a user guide for Well Spacing ("Gun Barrel") Diagram Mod

    wells-group.thumb.png.e7504562ec42692d7a9db6933d4f1aab.png.

    download-from-community.png.b24ea56935b306a90cfc88fe73d2c891.png

     

    The Well Spacing ("Gun Barrel") Diagram Mod is used to visualize the spacing of horizontal wells across a lateral section, in relation to relevant formations. It provides measurements between wells to help in planning drilling and completions activities. This mod is used to display wells in what is known as a "gun barrel" view, because of how the wells are displayed. It represents a vertical section through the well, the same as if you were looking down a gun barrel.

    Here's a video showing how this mod works along with the 3D Combined Surface and Line Chart mod:

    Data Requirements

    Every mod handles missing, corrupted and/or inconsistent data in different ways. It is advised to always review how the data is visualized.

    The Well Spacing ("Gun Barrel") Diagram Mod will draw a lateral section of wells and formations. In order to do this, a number of calculations will need to be performed up front from 3D trajectory survey data in order to generate the correct coordinates for rendering.

    • True Vertical Depth (TVD) - vertical distance from a surface reference point to the point being plotted.

    • Section Distance - horizontal distance along the section to the point being plotted.

    This data is required for both formations and wells.

    Setting up the Well Spacing ("Gun Barrel") Diagram

    The Mod includes the following axes. Not all axis values are mandatory and this will be indicated.

    Trellis By

    Optional. The Mod supports trellising with rows being grouped by the value in this axis.

    Layer Type

    Mandatory. Must contain one of the following permitted values depending on row context.

    • formation - identifies formation rows, linked together using Group By, and drawn as a line
    • wells - identifies well rows, optionally linked together using Group By, and drawn as a point

    Any other value will cause the row to be ignored.

    Group By

    Mandatory for formation rows. This value will group rows together to render as a single formation line.

    Optional for wells rows. This value will group wells together for rendering adjacent distances. If omitted then all wells will considered to be be in the same group.

    For example, if no grouping is specified for wells, the diagram will render like this:

    wells-no-group.thumb.png.c2d832af1db5b2521122a29d560e640b.png

    But if grouped, will render like this:

    wells-group.thumb.png.3145905f24b10b999e33933b16ffd36c.png

    Note how the distances change.

    To configure grouping for both formation and well rows it may be necessary to set the axis to an expression. For example:

    Concatenate([layerType],"-",If([layerType]="formation",[name],[reservoir]))
     

    Name

    Optional. Display name for well rows to display when hovered with the mouse. No effect on formation rows.

    Label

    Optional. Additional label for well rows to display when hovered with the mouse. No effect on formation rows.

    Size

    Optional. Sets the point radius for well rows. If omitted then a default will be used. No effect on formation rows.

    X

    Mandatory. The distance along the lateral section to render the formation point or the well.

    Y

    Mandatory. This true vertical depth (TVD) to render the formation point or the well.

    Color

    Optional. Sets the color of the formation line or well point. It may be necessary to use an expression here depending on requirements. For example, to color points the same color as associated formation, the following expression could be used:

    If([layerType]="formation",[name],[reservoir])
     

    Configuring the Well Spacing ("Gun Barrel") Diagram

    Additional configuration for the mod can be accessed by clicking on the small settings icon in the upper right corner of the visualization area. This will display the configuration properties over the visualization. Maximize the visualization if necessary to update the fields. The configuration panel will only be accessible when the analysis is in Editing mode.

    config-panel.png.7851448f2d064635cc3f289c2225a532.png

    Property Description Remarks
    Row Limit Maximum number of rows to render If the row count is exceeded then an error message will be displayed. This is a safety feature to keep from accidentally rendering too much data.
    Trellis Direction Direction for trellis panels Columns or Rows
    Max Trellis Panel Count Maximum number of trellis panels to render If the panel count is exceeded then an error message will be displayed. This is a safety feature to keep from accidentally rendering too much data.
    Show Grid Y Display Y-axis grid  
    Stroke Dash Array Dash array for formation lines This follows the SVG standard for stroke dash array
    Stroke Width Line width for formation lines  

    Using the Well Spacing ("Gun Barrel") Diagram

    Once the mod is configured it will render a lateral section of wells and formations positioned according to the X and Y axis configuration.

    Marking

    The mod supports marking of well rows if configured. Click a well to mark it. Use CTRL-Click to add additional rows to the marking, or remove an already marked row. To clear the marking, click in any open area.

    Well Distances

    To display distances between wells, select an option from the drop down. This will draw the distance between each well and it's two nearest neighbors within the same configured group.

    • Horizontal - display a horizontal line and distance between a well and two nearest

    • Perpendicular - display the shortest line between a well and two nearest

    • Vertical - display a vertical line and distance between a well and two nearest

    • Vertical + Horizontal - display both vertical and horizontal line and distance between a well and two nearest

    wells-horizontal.thumb.png.e7a41f68944c3a39e358cd05edd961d4.png

    Limit to Marked Rows

    If this checkbox is checked, then distances will only be displayed between the wells that are marked. Use CTRL-Click to add or remove wells from the marking set.

    wells-perpendicular-limited.thumb.png.a93de2c4dcdc0496ae846c5b5e18bd3a.png

    Measuring Stick

    The mod also includes a free-form measuring stick. Start by clicking one of the measuring toggles identified by these icons. It will turn dark grey once selected.

    Toggle Description
    straight-line-toggle.png.dc92c34b4776592b201e021af2faa3ae.png Straight line distance
    right-angle-toggle.png.2fea0d2871fafd0b4d91446d5f40574b.png Right-angle distance

    To use the measuring stick:

    1. Select the desired measuring stick toggle
    2. Click one of the well points
    3. Move the mouse, the line and distances will be displayed
    4. Hover over another well point, the distance and line will snap to the center
    5. Click on another well to move the start point to that well
    6. Or click in any open area to stop measuring

    measuring-stick.png.60265c706bb435460fcd87654da3e5dc.png

    Building the Project

    In a terminal window:

    • npm install
    • npm start

    In a new terminal window:

    • npm run server

    More information about Spotfire® Mods


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