Glossary

Depth of investigation

The distance into the formation at the borehole wall that has an influence on a logging tool. See Theys 1999 for a detailed account.

THEYS, P. 1999. Log Data Acquisition and Quality Control, Second Edition. Éditions Technip, Paris, 453.

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About the glossary
This listing is not exhaustive or definitive, do not expect Oxford English Dictionary standards; it is aimed at those who need to understand basic principles and those that read reports on dipmeters and borehole images requiring some technical help to get the most from such documents.

We have attempted to make the descriptions and explanations generic, giving the glossary a wide application and appeal, with minimal, if any, commercial bias. If you spot any mistakes, omissions or any problems with the explanations, please do not hesitate to contact us, and we will try to accommodate your comments.

Acknowledgements
This listing has been derived by Task Geoscientists. All external sources are fully acknowledged.