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The Leading Edge; October 2009; v. 28; no. 10; p. 1212-1219; DOI: 10.1190/1.3249777
© 2009 Society of Exploration Geophysicists
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Porosity and permeability images based on crosswell seismic measurements integrated with FMI logs at the Port Mayaca aquifer, South Florida

Jorge Parra and Chris Hackert

Southwest Research Institute

Emily Richardson

South Florida Water Management District

Ned Clayton

Schlumberger Water Services


Figure 1
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  		Figure 1. Map of project location and well locations.

 

Figure 2
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  		Figure 2. Crosswell reflection seismic and tomography images correlated with well logs from wells MF-37 and EXPM-1. The velocity tomography is superimposed to the crosswell reflection image.

 

Figure 3
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  		Figure 3. Main geological units and schematic of exploratory well EXPM-1.

 

Figure 4
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  		Figure 4. P-wave impedance computed from crosswell reflection data is given in [(g/cm3)(ft/s)]. The well-log impedances from wells MF-37 and EXPM-1 are superimposed at the well locations to provide better visual comparison to the surface seismic impedance. A discontinuity is captured by the impedance image. The interval shown in green corresponds to a stiffer zone than the upper and lower adjoining areas.

 

Figure 5
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  		Figure 5. Comparison of porosity images and FMI images for wells MF-37 and EXPM-1.

 

Figure 6
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  		Figure 6. Comparison of permeability images and FMI images for wells MF-37 and EXPM-1.

 

Figure 7
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  		Figure 7. (a) Comparison of zero vertical-offset waveforms with secondary porosity, total porosity, and average matrix porosity. This comparison of waveforms is based on logs from well EXPM-1. (b) Comparison of zero vertical-offset waveforms with their spectra.

 




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