Porosity Permeability (Poro-Perm) Log-Linear Regression in Python - Petrophysics

Permeability is one of the key reservoir properties we as petrophysicists attempt to derive as part of our workflow. As well logging tools do not provide a direct measurement for permeability, we have to infer it through relationships with core data from the same field or well, from empirically derived equations or NMR data. One common method of deriving permeability is to plot core porosity (on a linear scale) against core permeability (on a logarithmic scale) and observe the trend. From this, a regression can be applied to the porosity permeability (poro-perm) crossplot to derive an equation. This can subsequently be used to predict a continuous permeability from a computed porosity in any well. In this week's video, I demonstrate the application of linear regression within Python to derive a poro-perm relationship. However, when doing this we need to account for permeability being logarithmically scaled and porosity being linearly scaled. ⭐️ If you haven't already, make sure you subscribe to the channel: https://www.youtube.com/channel/UCn1O_4_ApzbYwrsUdRoMmOg?sub_confirmation=1 ▼ ---- SUPPORT THE CHANNEL ---- ▼ ☕️ BUY ME A COFFEE: https://www.buymeacoffee.com/andymcdonaldgeo ▼ ---- GET THE CODE --- ▼ https://github.com/andymcdgeo/Petrophysics-Python-Series ▼ ---- RECOMMENDED BOOKS ---- ▼ As an Amazon Associate, I earn from qualifying purchases. By buying through any of the links below I will earn a commission at no extra cost to you. PYTHON FOR DATA ANALYSIS: Data Wrangling with Pandas, NumPy, and IPython UK: https://amzn.to/3HNycJ9 US: https://amzn.to/3DL7qPv FUNDAMENTALS OF PETROPHYSICS UK: https://amzn.to/3l1PgSf PETROPHYSICS: Theory and Practice of Measuring Reservoir Rock and Fluid Transport Properties UK: https://amzn.to/30UNWZS US: https://amzn.to/3DNqBbd WELL LOGGING FOR EARTH SCIENTISTS UK: https://amzn.to/3FHsbfn US: https://amzn.to/3CILAuE GEOLOGICAL INTERPRETATION OF WELL LOGS UK: https://amzn.to/3l2v2HV US: https://amzn.to/30UOTkU ▼ ---- SOCIAL CHANNELS ---- ▼ Thanks for watching, if you want to connect you can find me at the links below: https://andymcdonaldgeo.medium.com/ https://twitter.com/geoandymcd https://www.linkedin.com/in/andymcdonaldgeo/ https://www.andymcdonald.scot/ #petrophysics #regression #python #pythonprogramming