Marcus Donaldson, Ph.d.

Thursday, June 20th, 2019
Part of GEotech field days

12:00 pm - 12:45 pm networking and FREe lunch buffet
12:45 pm - 1:30 pm presentation

geotech environmental equipment, Inc.
2650 E 40th Ave
Denver, co 80205 

Please RSVp directly with Geotech Field days

Lunch orders must be received by end of day Monday prior to the event.

Unfortunately we are no longer able to accept payment for lunches at the door.

Please prepay for your lunch or feel free to bring your own.



Geotech Environmental Equipment, Inc.

2650 E 40th Ave

Denver, CO 80205



Magnetic resonance logging is a non-invasive, radiation-free technique that allows for direct quantification of aquifer characteristics including porosity, specific yield and retention, and hydraulic conductivity. This talk focuses on the technique’s growing use in groundwater studies and explains the principles of the measurement.  Case studies will be presented to demonstrate the capabilities and avoidable pitfalls of borehole magnetic resonance. Technical considerations that should be undertaken when proposing the technology and interpreting the data will also be discussed.

Speaker Biography:

Marcus Donaldson holds a Ph.D. in Chemistry from the University of California, Berkeley, where he studied novel magnetic resonance techniques and built a laser-based atomic magnetometer for remotely-detected imaging experiments utilizing hydraulic flow. After graduation, he worked for Schlumberger as a field engineer in Russia and Indonesia, before moving to a position as a Research Scientist. In that role he developed methods and instrumentation for downhole magnetic resonance measurements. He specializes in magnetic resonance hardware, pulse sequence design and interpretation, and characterization of porous media.

Dr. Donaldson has broad experience in well logging, laser physics, chemical analysis, and other magnetic resonance applications. He has even built medical MRI systems. He currently works with Qteq (an Australian instrumentation manufacturer and service company) in partnership with Mount Sopris Instruments, delivering porosity and permeability measurement solutions to customers in North America and beyond.