These images are becoming increasingly important in interpreting the rock record for oil and gas exploration. In addition to identifying fractures and faults, borehole imaging tools are used for a variety of other applications such as sequence stratigraphy, facies reconstruction, stratigraphy and diagenetic analysis. They can be used in a wide variety of geological and drilling environments, providing high resolution borehole images of rock and fluid properties in formations ranging from fractured carbonates to soft, thinly laminated sand/shale sequences. These tools produce high resolution and often nearly complete borehole coverage, which are interpreted at an interactive graphics workstation.