Trajectory Design

In this section, you will learn how to navigate in the trajectories module, as well as how to create a new site, well and target.

How to Navigate in the Module

When entering the Trajectory Design section, you will see the following page.

Trajectory Design page

As seen, it contains a menu on the left hand side that will display the sites, wells and targets defined for the dataset. This area is marked with a one in the figure and each item is described briefly in the table below.

Item

Description

Sites

Area for viewing, editing and defining geographical locations and geomagnetic data.

Wells

Area for viewing, editing and defining wellbores.

Targets

Area for viewing, editing and defining targets.

When you have defined a new well or target, it will be displayed automatically in the three-dimensional plot on the right hand side.

View Modes

When you enter the Trajectory Design section, the view mode 3D View is selected as a default and a three-dimensional plot is displayed on the right hand side. The view mode options are found as a drop-down list and is marked with a two in the figure above. There are three different view modes to choose between: 3D View, Plan View and Section View. These will be described in the following paragraphs.

3D View

As mentioned, a three-dimensional plot will be displayed on the right hand side when 3D View is selected as the view mode. Once defined, this plot will display all the selected wells and targets.

You can easily move around in the three-dimensional plot by:

  • Clicking and dragging to rotate the plot.

  • Scrolling to zoom in and out.

  • Right clicking and dragging to move the positioning of the plot.

The figure below shows the additional options that are available when in 3D View. As seen, these are found to the right of the view mode options and are described in the following table (from left to right).

3D View options

Item

Description

Calc Ellipses

Enables the option to view the ellipsoids of uncertainty for each of the wellbores. These are calculated using the anti-collision model(s) defined when creating the wells.

Recenter

Recenter's the three-dimensional plot.

Projections

The projections of the wells will be shown in the plot.

Show Depths

The depth, either in MD or TVD, at certain points will be displayed along the wellbores.

Grid

Is used to show/hide the grid coordinate system and is enabled as a default.

Water

Is used to show/hide the water level defined for an offshore well.

Rig

Is used to show/hide the rig.

Casings

Is used to show/hide the casing strings defined for the main wellbore.

Lithology

Is used to show/hide the defined lithology.

Lithology Volume

Is used to show/hide the lithology volumes.

Interactive

Enables interactive mode, where you can create targets along a wellbore by right clicking when hovering over the desired location.

View Button

Is used to show/hide the well and target labels.

Arrow Buttons

The right, left and downwards arrows aligns the 3D plot to the z-, x- and y-axis, respectively.

Fullscreen Button

Is used to view the three-dimensional plot in fullscreen.

Plan View

When Plan View is selected as the view mode, a two-dimensional plot will be displayed where you can view the wellbores in the XZ-plane. I.e. the wellbores are viewed from above.

In this view mode, you have the options:

  • To show/hide the depth, either in MD or TVD, at certain points along the wellbore.

  • To show/hide the defined targets.

  • To show/hide the defined casings.

Section View

When Section View is selected as the view mode, a two-dimensional plot will be displayed where you can view the projection of the selected wellbore.

In this view mode, you have the options:

  • To define a reference azimuth.

  • To show/hide the depth, either in MD or TVD, at certain points along the wellbore.

  • To show/hide the formations.

  • To show/hide the defined casings.