Event Location:
CGG
10300 Town Park Dr.
Houston, TX 77072
NOTE: You Must be Logged in to Register
5:15pm Refreshments
5:30pm Presentation Begins
6:30pm Adjourn
Speaker: Dr. De-hua Han, University of Houston
Authors: De-hua Han, University of Houston, Michael Batzle, CSM
“Who care geophysics and seismic, all we care are hydrocarbon fluids”. This statement has been made 20 years ago (1995) by Dr. Michael Batzle as we facilitate support for the “Fluids/DHI” consortium. It seems too extreme; however it is true then, now, as long as we, geophysicists, have worked for hydrocarbon reservoir exploration and production.
Understand of seismic properties (velocity and density) of hydrocarbons and their effects on seismic data are essential to bridge seismic data with properties of hydrocarbon reservoirs. In comparison with porous rocks, hydrocarbon fluids appear to be simple as elastic (infinity Q) and uniform (scaleless), but complicated with dynamic phases. Hydrocarbon fluids in a single phase are usually composited with different compounds, especially gas can dissolve into oil, which called under-saturated. With pressure decreases below the bubble pressure, gas can bubble out of oil, became gas-oil (two saturated fluid phase) mixture. Properties of two phase mixture can be calculated by the Wood equation (1955) based on properties of each single phase. Therefore, we measured properties of hydrocarbon fluids in a single phase with ultrasonic technique on samples with a minimal volume (~30 cc).
We have measured hundreds hydrocarbon fluids samples from worldwide reservoirs at in situ conditions: pressure up to ~25000 Psi and temperature from sub-zero to over 200 °C. In this presentation, I will present measured data and developed models of hydrocarbon fluids include mainly brine, gas and oil, as well as their applications for quantitative seismic interpretation and reservoir monitoring.
Biography: Dr. De-Hua Han, University of Houston
2003- now Research Professor, Director of Rock Physics Laboratory at U. of Houston
1994 - 2003 Geotechnology Research Institute at HARC, Director of RPL
1987 - 1994 Unocal Science and Technology Division, Director of RPL
1995- now PI of the FLUIDS/DHI consortium
RESEARCH INTERESTS: Seismic rock physics: Rock and fluid properties and integrating rock physics into seismic for reservoir exploration, evaluation, characterization, and monitoring, and quantitative seismic interpretation.
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