Tim Kneafsey

Staff Scientist
Geological Scientist & Mechanical Engineer
Building 07474R316C
Phone: 510-486-4414
Fax: 510-486-5686
Curriculum Vitae


Timothy Kneafsey P.E., Ph.D. is a geological scientist and mechanical engineer, and heads the Hydrogeology Department at Lawrence Berkeley National Laboratory. He has performed laboratory and field experimental studies on a variety of topics including heat transfer and mass transport in fractured and porous rock; measured hydrological, geophysical, and geomechanical properties of hydrate-bearing sediments and supercritical CO2-bearing rock; studied the transport of acid gases in geothermal systems; visualized fluids (liquid and gas) flow through coal and measured geophysical properties related to coal-bed methane; and investigated issues related to CO2 sequestration including CO2-induced density driven brine advection. Dr. Kneafsey has used a variety of visualization tools in his investigations including direct and differential imaging, spatially resolved infrared thermometry, and x-ray CT scanning; and has a patent for a CT scanner design. Dr. Kneafsey holds bachelor of science degrees in mechanical and civil engineering from the University of New Mexico, a masters of science degree in civil engineering from the University of California at Berkeley, and a doctorate in civil and environmental engineering, also from the University of California at Berkeley. He is a registered Civil Engineer in California.

Research Interests

Experimental studies in reservoir processes and subsurface hydrology, including multiphase flow, phase change, thermal processes, thermal-chemical processes, gas hydrates, coal bed methane, and carbon dioxide sequestration. Other interests include imaging as a tool to investigate flow processes.