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The scanning electron microscope became available commercially in the mid 1960s and is used by geologists to study pore geometry and diagenetic history in order to evaluate type, distribution, and flow of fluids in the lithosphere. The SEM is useful for examining the effect of fluids and chemical additives on rocks during enhanced oil recovery.<ref>Thomas, John B., and Edward D. Pittman, 1979, [http://archives.datapages.com/data/bulletns/1977-79/data/pg/0063/0003/0500/0539a.htm Applications of scanning electron microscopy to hydrocarbon exploitation]: AAPG Bulletin, v. 63 No. 3, p. 539.</ref>

The scanning electron microscope became available commercially in the mid 1960s and is used by geologists to study pore geometry and diagenetic history in order to evaluate type, distribution, and flow of fluids in the lithosphere. The SEM is useful for examining the effect of fluids and chemical additives on rocks during enhanced oil recovery.<ref>Thomas, John B., and Edward D. Pittman, 1979, [http://archives.datapages.com/data/bulletns/1977-79/data/pg/0063/0003/0500/0539a.htm Applications of scanning electron microscopy to hydrocarbon exploitation]: AAPG Bulletin, v. 63 No. 3, p. 539.</ref>

[[:File:Figure 9 in AAPG Memoir 67, Chapter 1|Figure 1]] shows images from an SEM.<ref>Snider, Robert M., John S. Sneider, George W. Bolger, and John W. Neasham, 1997, [[http://archives.datapages.com/data/specpubs/mem67/ch01/ch01.htm Comparison of seal capacity determinations: Conventional cores vs. cuttings], in Surdam, R. C., ed., Seals, Traps, and the Petroleum System: [http://store.aapg.org/detail.aspx?id=749 AAPG Memoir 67], pp. 1-12.</ref> These images are SEM photomicrographs of seal types.

[[:File:Figure 9 in AAPG Memoir 67, Chapter 1|Figure 1]] shows images from an SEM.<ref>Snider, Robert M., John S. Sneider, George W. Bolger, and John W. Neasham, 1997, [[http://archives.datapages.com/data/specpubs/mem67/ch01/ch01.htm Comparison of seal capacity determinations: Conventional cores vs. cuttings, in Surdam, R. C., ed., Seals, Traps, and the Petroleum System: [http://store.aapg.org/detail.aspx?id=749 AAPG Memoir 67], pp. 1-12.</ref> These images are SEM photomicrographs of seal types.

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