FIGURE 3-2 Coring and cutting devices. SOURCE: Baker Hughes, 2001.

FIGURE 3-3a Cores from Potter Mines, Matheson, Ontario. These cores were retrieved from a depth of 623 to 629 meters (2,044 to 2,064 feet). Each core box contains 3 meters (10 feet). SOURCE: Millstreams Mines, Ontario, Canada.

FIGURE 3-3b Cuttings. SOURCE: Baker, 1980. Petroleum Extension Service, The University of Texas at Austin.

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