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Project Acronym: SAFOD | State: Completed | Expedition ID: 5025

ins.: 2022-10-06 12:17; ( Age: 2 yrs )
By: sql
Category: SAFOD

SAFOD: 2002-06-30

At a depth of 3900 feet the borehole intersected
Mark Zoback explains the cuttings protocol to members of the Stanford Geophysics staff -- Lauren Nelson, Jeannette Ochoa, and Lauren Dismuke.

At a depth of 3900 feet, the borehole intersected a small fault zone with a width of 10 to 20 ft (estimated from rate of penetration and cuttings mineralogy). Our real-time gas analysis system recorded an increase in methane and carbon dioxide, also indicative of a fractured zone.