Topic:Sound of the Sea Using Sound as a ToolBroadcast 5:February 14, 2001

Mrs. Joan Linsley

Underway Geophysics Lab

Soun

d as

a T

ool Hydrophone

StreamersAirgun

Sound Wave

Activity

V=D/Twhere:V = velocityD = distanceT = time

Distance

Time = 0.7 secondsVelocity = 1.4 km/second

Downhole Logging Tools

GuestDr. Flavio Anselmetti

Co-Chief ScientistGeologisches Institut

ETHSwitzerland

Marion Plateau

Platform Basement

Logging DataFormation Microscanner(FMS) tool provides an image of the borehole using variations in electrical resistivity to show fine layers and structures in the carbonate rocks.

Each image strip shows adifferent quarter of the borehole wall.

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