New Software Release

Techlog 2020.1 Now Available

Monday, 04 May 2020

Product overview

The Techlog wellbore software platform has been continually developed and tested for the last 20 years. The result is a leading wellbore-centric platform that is faster, with better usability and stability than ever before.

This new release of the Techlog platform includes major technology updates to improve software security, reliability, and extensibility, offering a new way to create Python 3.6 scripts using an external process to use Python outside the Techlog platform.

We continue to improve the overall usability of the software, providing an easy way to create discrete palettes and brush associated lithology or any general flags.

Techlog 2020.1 also breaks the binary compatibility with Techlog 2019 versions due to a compiler technology upgrade, so Ocean software development framework plug-in developers and users will need to upgrade or recompile.

Within the Studio E&P knowledge platform, security has been improved thanks to the technology update, enabling users to work in a more secure and robust environment. Studio platform version compatibility has been improved allowing Techlog 2019.1 to run on top of Studio 2020 systems.
In Europe and North America, Techlog 2020.1 is now available in the DELFI cognitive E&P environment as part of the Petrotechnical Suite.

Release updates


  • Usability:
    With Techlog 2020.1, we continue to deliver continuous improvements to facilitate your processing and interpretation workflows:
    • The Pattern manager and the Symbol manager have been merged into one window.
    • Import from clipboard is now available in the import menu.
    • You can now
      • add classifications.
      • create a discrete palette by dragging an element from the Symbols or Pattern manager to the Palette dock window.
      • define a discrete number and associate it to a pattern.
      • brush a lithology onto any track using a palette.
      • convert old lithology CDO object into lithology variable and symbols dataset.
      • display a lithology palette information vertically in the LogView header or use the dynamic header.
      • use “Apply to” action on the symbols track.
  • Extensibility
    • You can now
      • run Python out of process to remove the limitation of the subinterpreter in the Techlog platform
      • use external Python integrated development environments (IDEs) like PyCharm to create and debug Python scripts for the Techlog platform.
    • Python 3.6 Advanced Library with up-to-date versions is now available.
    • There’s an easy way to install any additional libraries using Pip install.
    • The completion issue has now been fixed by using JEDI from MIT, a third-party tool.
    • Python API has been added to manage the history entry at a specific time stamp for variable/dataset/well.
    • Python API has been added to manage discrete palette creation.

  • Performance
    • Improved Techlog platform startup time by 30 %.

Studio Platform

  • Simplified conflict resolution steps into one.
  • The Python for Studio Techlog documentation is now available with examples and descriptions.


  • 3DP - Low angle well evaluation (3DPV)
    • Resistivity modeling mode: Dip or invasion can be excluded from the formation model upon simulation of resistivity log responses. This enables the study of the individual contribution of these effects into the log responses.
  • 3DP - High angle well evaluation (3DPH)
    • Exchange of curtain section geometry point sets between the Petrel E&P software platform and Techlog 3DP-H. You can now use Petrel platform structural models to initialize 3DP geometry. You can also use 3DP geometry point sets to update Petrel platform structural models.
    • Density inversion for the EcoScope multifunction logging-while-drilling service and adnVISION azimuthal density neutron services: There is now automatic inversion for layer geometry and density and PEF properties using density images.
    • Neutron inversion for EcoScope service (internal Schlumberger module-processing service available to customers): There is now automatic inversion for layer neutron porosity property using measured azimuthal neutron porosity.
    • Nuclear forward modeling is now available with the Schlumberger tool lock license. Starting from Techlog 2020.1, the Confidential Disclosure Agreement is not needed to access 3DP nuclear forward modeling.
  • Environmental Corrections
    • Inversion for Rt, Rxo and diameter of invasion using average resistivity from geoVISION 675 and 825 imaging-while-drilling service.


  • The calculation of horizontal stresses combining either effective stress ratio, poroelasticity, or a proportion from minimum horizontal stress has been added.
  • Families to account for horizontal elastic properties has been added.
  • The pressure vs. depth cross-plot as an output for pore pressure prediction (PPP) has been added.
  • The effective stress calculation as an output of PPP has been added.
  • Performance improvement by migrating all Python scripts to AWI Engine V2.


  • Added the support of three new non-Schlumberger tools: BHI XMAC, WFT CXD, and HAL WaveSonic on acoustic toolbox plugin (AIS)
  • Coalbed Methane Interpretation (CBM) plug-in is now available on the ocean store.


The Techlog Platform is suitable for all geoscientists dealing with wellbore data and associated interpretation, across multiple domains performing collaborative workflows, from exploration to production.