MUHAMMAD ZAHID’s Post

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DEPUTY CHIEF PETROPHYSICIST | Master of Str. Geology with Geophysics (Leeds) | Master of Business Administration | Master of Computer Sciences | Master of Applied Psychology |

This is a more elaborate version of the AVO anomalies including both the Top of Sand and Base of Sand version. And here is a summary of AVO classes I posted earlier in case you missed it. https://lnkd.in/dGmgfweu

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Brian Schulte

President Tesseral Ai | Focused on delivering industry-best solutions to your critical problems especially with AI and machine learning.

7mo

The AVO crossplot actually represents fluid, lithology and porosity at the same time. The polygon around the background represents shales and wet sands. As you move away from the background you will have where oil will plot and even further away it is where natural gas will plot. The volume you create from these polygons will represent fluid, lithology and porosity. If we lay this over the seismic we should see where the AVO anomalies match structure. If they match structure we can further de-risk the anomaly. We can also output this volume and use it the Geomodel to create seismic facies. Seismic facies is what we want to use in our Geomodel. We can then take this data and invert it which will improve our resolution since we are removing sidelobes with the well model and increasing the resolution by phase rotating -90 degees. The wavelet now represents a rock property. We can then use a crossplot of inversion attributes to again create seismic facies. Once we have done the seismic inversion can use neural net to create a rock properties that matches the well logs. This volume could be porosity (porosity), gamma Ray and Archie’s fluid volumes.

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