ResInsight/Documentation/UsersGuide/WellPaths.md
2013-10-24 17:29:51 +02:00

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Well trajectories

ResInsight can import Well trajectories from simple Ascii files. In addition, a Statoil specific solution to retrieve Well Trajectories from their internal web service is implemented.

Ascii Well Trajectories

The command File -> Import -> Import Well Paths From File will read the well paths in the selected file, and create one entry for each trajectory under the Wells item in the Project Tree.

The supported ASCII format is quite flexible but the main requirements are:

  1. Each data line must contain four numbers: X Y TVD MD separated with white-space.
  2. A line starting with none-number-characters are ignored, unless :
    1. If the line contains a pair of : ', `, ´, or the text between the quotation marks is used as a well name.
    2. If the line contains the case insensitive string "name " the rest of the line is used as a well name.
  3. If a well name is found, a new well is created and the following data points ends up in it.
Example 1:
WELLNAME: WELL1
4507.0	5638.5	0.0	0.0
4507	5638.5	4628.6	1628.6
4297.4	5938.5	4632.4	1998.387
-999
WELLNAME: WELL2
5507.0	4638.5	0.0	0.0
5507	4638.5	3628.6	1628.6
5297.4	4938.5	3632.4	1998.387
-999
Example 2:
X Y TVD MD
Name Well_1
5507.0	4638.5	0.0	0.0
5507	4638.5	3628.6	1628.6
5297.4	4938.5	3632.4	1998.387

Name Well_2
5507.0	4638.5	0.0	0.0
5507	4638.5	3628.6	1628.6
5297.4	4938.5	3632.4	1998.387

The trajectory data is not copied into the ResInsight project as such. The project file only stores the file path, and the next time you open the project, ResInsight will try to read the well data from the file again.

Importing from SSI-Hub (Internal Statoil web-service)

The command File -> Import -> Import Well Paths From SSI-hub launches a wizard to guide you through the process of selecting the well trajectories you need.

After completing the wizard, the wells imported are accessible as Items under the Wells item in the Project Tree.

The trajectory data is not copied into the ResInsight project as such, but is stored in files in a directory called _wellpaths in the same directory as your project file.

Well Trajectory visualization

All the imported well trajectories are available below the Wells item in the Project Tree.

The visible wells are always shown in all the 3D Views in the complete project, so the toggles and settings control the overall project visibility of the Well Trajectories. The Property Editor of the Wells item is shown below

  • Global well path visibility This option forces the well paths on or off, ignoring the individual settings unless it is set to Individual.
  • Clip Well Paths This option hides the top of the Well Trajectories to avoid displaying the very long lines from the reservoir to the sea surface.
  • Well Path clipping depth distance This number is the distance from the top of the reservoir to the clipping depth.

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