FRACTOGRAPHIC LOGGING FOR DETERMINATION OF PRE-CORE AND CORE-INDUCED FRACTURES — NICHOLAS COMBS NO. 7239 WELL, HAZARD, KENTUCKY

摘要

This report is a summary of methods, results and conclusions formulated during a prototype fractographic logging study of seventy-five feet of oriented Devonian shale core. The core analyzed is from the Nicholas Combs No. 7239 well located twelve miles due north of Hazard, Kentucky (figure 1). The seventy-five foot core length analyzed in this report was taken from a cored section lying between 2369.0 feet (subsea) and 2708.0 feet (subsea). Total core length is 339.0 feet. The core was extracted from the upper Devonian Ohio and Olentangy shale formations (figure 2).