Andy McDonaldPetrophysicist · Product manager Subsurface data, made usable.
I'm Andy McDonald, a petrophysicist and product manager. I turn messy, incomplete well data into something trusted, before the machine learning ever gets a look in.
Pore Lab: Seeing Inside Reservoir Sandstone
From an X Post to a 3D Pore-Scale Simulator in an Hour
Read on Substack ↗readers of Subsurface Syntax: AI, ML and Python for the subsurface.
Subscribe →Journal and conference publications
Public well data sources, catalogued
Structuring and Organising Streamlit Apps
Python for Well Log Analysis
Read the draft →Interactive labs
Interactive 3D explainers for subsurface concepts. Change the rock, drill the well, and see what happens.
Pore Lab
A magnified cube of reservoir sandstone. Change the porosity, grain size, clay and water saturation and watch the grains, water films and oil or gas rebuild in front of you, then slice through it or pull it apart into its bulk volumes.
Open Pore Lab →
Bore Lab
Drill a well and watch its logs being made. Sensors trail the bit, gas and cuttings take time to reach surface, and mud filtrate creeps into the rock as you drill, so you can see why a log depends on when it was run.
Open Bore Lab →
Probe Lab
Put a logging tool in a cut-away borehole and watch it measure. Gamma rays scatter, neutrons slow, currents flow and sound waves travel through the rock you set, so you can see what each tool responds to and what fools it.
Open Probe Lab →More from the blog
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Subsurface Syntax: AI, ML and Python for the subsurface.