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The start of a New Year is a good time to begin a Petro Ninja – Enlighten Geoscience Well of the Week series on the resurgence of a lithologic succession that used to dominate the western Canadian oil and gas industry. There are several ongoing examples of how carbonate reservoirs are resuming their prominence in our imaginations. At this point it is important to note that, as illustrated by the AER Table of Formations , the Paleozoic of the WCSB is dominated by carbonate rocks (limestones and dolomites) while the Mesozoic is primarily clastics (sands and shales). After Leduc No. 1 launched the post-WWII Canadian oil and gas industry almost all energy was focused on carbonates. Following the Leduc discovery, a spate of drilling looking to replicate this historic well occurred targeting the Paleozoic. This activity represented the “Golden Age” of carbonate exploration. After AER (2019) And the Golden Age continued from 1947 until the mid-1980s. It might be hard for geologists who cut their teeth on concepts such as steam chambers, pycnometric flow, frac stages and horizontal reach to realize just how intense this focus was. As an example, Gulf Canada held three in-house courses on the subject […]
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