Layer-based assignment of prior flownet cell volumes

[olwijn]

Insert a description of your pull request (PR) here, and check off the boxes below when they are done.

This is a draft PR that aims to provide the option to map reservoir volumes to Flownet cells, based on a list of depth levels. Reservoir volumes should not be mapped across these depths. This could be used for example to prevent the transfer of large volumes below an oil-water contact to FlowNet cells above the contact, leading to an overestimation of the FOIP after equilibration.

For example, for a single depth level (e.g. the OWC depth ) separating 2 depth intervals (below and above this level), add to the config file in the section called 'flownet': prior_volume_layering: [2570]

---

Contributor checklist

• [X] :tada: This PR closes #416.
• [X] :scroll: I have broken down my PR into the following tasks:
  • [X] Task 1 - Map Eclipse volumes to Flownet volumes between specified depth levels
  • [X] Task 2 - Provide the user option to specify multiple depth levels
• [ ] :robot: I have added tests, or extended existing tests, to cover any new features or bugs fixed in this PR.
• [ ] :book: I have considered adding a new entry in CHANGELOG.md.
• [ ] :books: I have considered updating the documentation.

[olwijn]

The FOIP computed with the old code and the FOIP computed with the new code without specifying any layers lie on top of each other: The same holds for FWIP.

[olwijn]

The last 2 commits were not supposed to be pushed yet, how can these be undone?