Abstract

The ultra sonic scanning is a newly developed technology for obtaining borehole wall image with high resolution. To study the features of this new technology, the Earth Scanning Association (ESA) has carried out a field test using both the Ultra Sonic Scanner (USS) and the conventional Optical Digital Scanner (ODS) and compared the 2 kinds of borehole wall images in various aspects such as the resolution and borehole conditions. Furthermore, as a fundamental experiment for future technical development, ESA has also carried out a full- waveform ultra sonic logging test using the same transmission/receiving element as built in the USS probe and discussed the relationship among full-waveform logging and physical properties of the corresponding core. The result shows that, though the resolution of USS image is a little bit lower than ODS, the USS has many new features and its utilization can be greatly expected.

Keywords:
production control, Reservoir Surveillance, log analysis, borehole imaging, production monitoring, Artificial Intelligence, asian rock mechanics symposium arms8, USS, Probe, well logging
Subjects:
Well & Reservoir Surveillance and Monitoring, Formation Evaluation & Management, Borehole imaging and wellbore seismic, Open hole/cased hole log analysis
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2014. Japanese Committee for Rock Mechanics. Permission to distribute - International Society for Rock Mechanics
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