Changes

==Survey types==

==Survey types==

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file:cross-borehole-tomography-in-development-geology_fig3.png|{{figure number|3}}Time lapse tomograms acquired at 6 month intervals across a thermal EOR project. (After <ref name=pt07r25 />.)

file:cross-borehole-tomography-in-development-geology_fig3.png|{{figure number|3}}Time lapse tomograms acquired at 6 month intervals across a thermal EOR project. (After Justice et al.<ref name=pt07r25 />.)

file:cross-borehole-tomography-in-development-geology_fig4.jpg|{{figure number|4}}Single image tomograms documenting stratigraphy and reservoir zones. Heterogeneity of the lower reservoir is documented by the contrast in log curves and the corresponding change in the tomographic velocity fields. (After Justice et al., 1990.)

file:cross-borehole-tomography-in-development-geology_fig4.jpg|{{figure number|4}}Single image tomograms documenting stratigraphy and reservoir zones. Heterogeneity of the lower reservoir is documented by the contrast in log curves and the corresponding change in the tomographic velocity fields. (After Justice et al., 1990.)

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