Glossary

Floating pad

A condition occuring with resistivity devices where a pad is no longer in contact with the borehole wall and the logging device is reading drilling mud values. Commonly occurs within zones of excess hole enlargement and within inclined and horizontal wells when pads are forced down from the ceiling. Pad pressure can be increased to offset the problem within inclined and horizontal wells.

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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.