Geologists have used wireline logs as a tool for nearly 100 years to measure rock properties down a borehole — a fundamental need in analyzing the subsurface. Originally, these logs were printed on long sheets of paper and interpreted by hand with pencil crayons. This process was time-consuming for large-scale interpretation and often limited the analysis quality.
The digital age has forever changed this tedious process. Because of the digitalization of these paper files, geologists can rapidly assess thousands of logs at the click of a button, loading them into their geological software and performing regular and more advanced data science analytics. Ultimately, this gives them an edge in understanding where to drill and how to optimize development.
A higher density of well logs allows geologists to create higher resolution maps of the subsurface, reducing uncertainty. To support this, Enverus continually acquires and digitizes well log images from vendor purchases and from scraping public sources. When specifically requested coverage isn’t available, digitization requests may be issued to fill these gaps, which is often completed within a couple of weeks. After digitization, our team takes the digital log data to the next level by scaling, cleaning erroneous data, merging duplicates and aliasing the nearly 800,000 log names to create clean analytics-ready log suites. This ongoing process allows our team and clients to efficiently analyze subsurface data and build out advanced geological workflows.
Figure 1 | Wireline Logging Process and Digital Log
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