See Also: Corporate  License - Petrophysical Training

his License permits Licensee to use specified portions of Copyrighted Intellectual Property known as Crain's Petrophysical Handbook
for the sole purpose of creating petrophysical software. Copyrighted content that may be copied and used by Licensee for this purpose is limited to the "computer-ready-math" equations, usage rules, parameter definitions, recommended parameter value ranges, and text excerpts, excluding images, appropriate for program documentation and help files. Specific links to particular Handbook webpages in lieu of help files is not permitted. Copying of portions of the Handbook not specified herein may be granted upon request and payment of an additional fee. Appropriate credit to Crain's Petrophysical Handbook is required in each program module that contains material obtained under this License.

Technical support if requested by Licensee, other than brief emails or phone calls, will be charged at current professional rates.

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This License is valid only after the Licensee has paid the required License Fee and has received a receipt for same from the Copyright Holder.

This License will terminate automatically if Licensee breaches any of the terms, conditions, or limitations contained in the License.

This License is not transferable without written permission from the Copyright Holder and payment of an additional fee to the Copyright Holder.

The entire content of the Handbook is the Copyrighted Intellectual Property of the Author, E. R. (Ross) Crain, P.Eng. (the "Copyright Holder").
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The Handbook is published online by the Copyright Holder at The proper citation for this work is "Crain's Petrophysical Handbook by E. R. (Ross) Crain, P.Eng., online at, 2019".

The following Trademarks are the property of the Copyright Holder:  CPH Logo, "CPH"  "CPH Gold Member", "Crain's Rules", "Meta/Log", and "Computer-Ready-Math".

The use in this Handbook of these and other trademarks and tradenames without special notation or acknowledgement does not imply that such names, as defined under the relevant intellectual property  laws, may be regarded as unprotected and thus free for general use. No endorsement of a product or service is intended by use of a tradename in this text.

While the advice and information contained in this book are believed to be true and accurate at the date of publication, neither the Author nor the Publisher can accept any legal responsibility for errors or omissions. The Author and Publisher make no warranty, either expressed or implied, with respect to the material contained herein. You use the software and text at your sole risk and responsibility.


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