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Watch YouTube Educative Petrophysics Video  Educative Petrophysics video tutorials


Learn petrophysics with GeolOil educative tutorial videos on well logging. Share the videos and subscribe to our GeolOil YouTube channel

NOTE: These videos are preliminary early releases that will be updated.




Youtube video 20 px icon   The GeolOil log-plot display panel

A left button click reads the actual curve values at its measured depth MD, the center button places a vertical reference base-line, and dragging the right button measures vertical zone thickness.

It also shows how to put besides the MD scale, a depth scale with TVD, TVD-SS, and INC, write text annotations on the tracks, and put marks using keyboard short-cuts.


Youtube video 20 px icon   Importing and shifting core data from Excel

Once laboratory core measurement values are entered in an Excel spreadsheet, save the sheet as CSV (Comma Separated Values) format to import core data into a GLOG file.

The video also teaches how to depth shift the core measurements to match reference log curves.


Youtube video 20 px icon   Loading the Well Path Deviation Survey file

This video teaches to upload a well X-Y surface coordinates and its latitude and longitude, the log datum reference like KB Kelly Bushing, and the well path Deviation Survey file from an Excel spreadsheet.

The video also shows the surface well location on Google Map with a satellite field view.


Youtube video 20 px icon   How to merge LAS files and LAS curves

Merge several LAS files from a single well into its unique LAS file. LAS files can have different curves, start, stop, and depth steps. Re-sample the files with the desired depth-step, start-depth, and stop-depth to cover all information. Core data is collocated in the corresponding depth-bin exactly.

The video also shows how to make smoothed continuous curves out from sparse core data with gaps.


Youtube video 20 px icon   SW from Rxo and the Network File Locking

Estimate water saturation using the SW ratio method equation, instead of equations like Archie that requires clean rocks and knowledge of the porosity. An extension of the equation to deal with shaly reservoirs is presented.

Also learn how to manage the Network File Locking mode to avoid collisions and data corruption between different users working simultaneously on the same file.


Youtube video 20 px icon   NaCl Salinity and Rw from Water Analyses

Learn how to estimate formation water salinity and formation water resistivity Rw from Ionic Water Analyses. GeolOil allows to enter the PPM concentrations of cations (positive ions), and anions (negative ions) to estimate the equivalent NaCl salinity and its milli-equivalent electrical unbalance.





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