John Jansen , Ph.D., PG

Leggette, Brashears and Graham

John Jansen, Ph.D., is a Senior Associate with Collier Consulting and a hydrogeologist and geophysicist. He has modeled a variety of unconventional wells to compare relative yield and developed a new horizontal cryogenic drilling method.

NGWA may only post those brown bag sessions, Webinars, event sessions, and like for which we have obtained copyright permission from the presenter. Furthermore, by accessing or downloading any of these items, you agree they are for your own personal use and may not be disseminated by any means to others via any medium. Click here to read NGWA's proprietary legend and disclaimers before proceeding.