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Mr. Junwei (Jonwey) Huang
Exploration
Geophysics | |||||||||||||||||||||||
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Links: Junwei's Lab | Junwei's Home | Reservoir Simulation (2D/3D) (NEW!!)
Classical seismology considers the Earth a sequence of horizontal layers with different elastic properties and densities. Analytical solutions are available based on appropriate approximations (e.g., Born approximation). Petrophysics however demonstrates the existence of a variety of heterogeneities in the Earth crust. The strong contrasts of petrophysical parameters generate strong seismic scattering and violate the approximations from which analytical solutions can be deduced. Junwei is using the parallel 3-D viscoelastic Finite Difference method to study the impact of strong contrasts on seismic wave propagation in three dimensions. Gas Hydrates are used as a case study in Junwei's Ph.D. project.
To have a look at my most recent research interests, please see the pdf file (NEW!!).
The enormous amount of methane and wide geographical distribution make gas hydrates attractive as a potential energy resource. In gas hydrate occurrence areas, borehole drilling for hydrocarbon exploration will inevitably change the stable environment and the resulting dissociation of gas hydrates may lead to explosion. To avoid geohazards is one of the motivations to locate gas hydrates. Global climate change is another concern on gas hydrates. Up to 99% of gas trapped in gas hydrates is methane which is a primary “green-house” gas. A large release of methane from hydrates could have a significant impact on atmospheric composition and thus affect the global climate. That's we care about Gas Hydrates. However, after reviewing studies on marine gas hydrates since the 1970s, Milkov (2004) argued that gas hydrate may be considered a future energy source not because of the large global volume of gas stored in gas hydrates, but because some individual gas hydrate accumulations may contain highly concentrated hydrates. This statement is also applicable to continental gas hydrates. For example, in Mallik area gas hydrate distribution is considered patchy or dispersive. The goal of Junwe's Ph.D. project is to understand the distribution of gas hydrates in complex geological settings by constructing 2D and 3D models. I intend to answer two fundamental questions: where are highly concentrated gas hydrate zones located and how much is hydrate-bounded gas out there?
• Publication in refereed journals
Huang, J.W., Gilles Bellefleur and Bernd Milkereit, 2009, Seismic Modeling of Multi-dimensional Heterogeneity Scales of Mallik Gas Hydrates Reservoirs, Northwest Territories of Canada, Journal of Geophysical Research, doi:10.1029/2008JB006172.
Huang, J.W., Bellefleur, G., and Milkereit, B., Seismic Modeling of Reservoir-Scale Heterogeneities - an Application to the Mallik Gas Hydrates, Northwest Territories, CSEG recorder 2008 Sept (PDF)
Huang, J.W., Thomas Bolhen, and Bernd Milkereit, Numerical Solutions of Seismic Scattering in Heterogeneous Media, CSEG recorder 2006 Vol.31 Page44-47 (PDF)
• Publication in conferences
Huang, J.W., Bellefleur, G., and Milkereit, B. (2009), Multi-dimensional, Multi-variable, and Multi-scale Modeling of Reservoir Heterogeneities, extended abstract, 71st EAGE Conference & Exhibition, Amsterdam (PDF).
Huang, J.W., Bellefleur, G., and Milkereit, B. (2009), Seismic Modeling Of Geological Heterogeneity: An Application To Gas Hydrate Reservoirs of ICDP program, AGU Joint Assembly, 24–27 May 2009, Toronto, Ontario, Canada (PDF).
Huang, J.W., Bellefleur, G., and Milkereit, B. (2009), Multi-dimensional, Multi-variable, and Multi-scale Modeling of Reservoir Heterogeneities, AGU Joint Assembly, 24–27 May 2009, Toronto, Ontario, Canada (PDF).
Huang, J.W., Milkereit, B., and Bellefleur, G., (2009) Seismic wave attenuation due to Scattering and Leaky Mode Mechanism in Heterogeneous Reservoirs, joint convention of CSPG, CSEG and CWLS, expanded abstract (PDF).
Huang, J.W., and Milkereit, B, (2009) Empirical Mode Decomposition Based Instantaneous Spectral Analysis and its Applications to Heterogeneous Petrophysical Model Construction, joint convention of CSPG, CSEG and CWLS, expanded abstract (PDF).
Huang, J.W., Milkereit, B. (2008) Seismic Modeling of Reservoir Heterogeneity Scales---an Application on Gas Hydrate Reservoirs, Joint Annual Convention of CSPG/CSEG/CWLS, expanded abstract (PDF).
Huang, J.W., Bellefleur, G., Milkereit, B. (2008)Seismic modeling of heterogeneity scales of gas hydrate reservoirs, 6th International Conference of Gas Hydrate ICGH 6th, manuscript (PDF).
Huang, J.W., Milkereit, B. (2007) Wave equation based separation of P- and S-wave modes, Annual conference of SEG, expanded abstract (PDF).
Huang, J.W., Milkereit, B. (2007) Another look at the separation of P- and S-waves, Joint Conference of CSEG (CSEG), CSPG, expanded abstract (PDF).
Huang, J.W., (2006) Seismic Imaging of Gas Hydrate Distribution — A Case Study, 2006 Joint Conference of CSEG, CSPG, and CWLS (CWLS),, expanded abstract (PDF).
Huang, J.W., (2005) Strong Contrasts in Seismic Scattering, CGU Annual Scientific Meeting (CGU), abstract (PDF).
• Publication submitted or in progress
Ingo A. Pecher, Bernd Milkereit, Akio Sakai, Mrinal Sen, Nathan L. Bangs, Jun-Wei Huang, (submitted), Vertical Seismic Profiles for gas hydrate studies, one chapter in SEG book
Huang, J.W., Bellefleur, G., and Milkereit, B., Seismic Modeling of Multi-dimensional Heterogeneity Scales of Mallik Gas Hydrates Reservoirs, Northwest Territories of Canada, Journal of Geophysics Research-Solid Earth, (submitted in Oct.2008)
• Invited presentations
Jun-Wei Huang, March 2006, Taking
Seismic Pictures of Inflammable Ice-A seismic headache, SEG student session
at University of Toronto
Jun-Wei Huang, July 2007, Another Look at the Separation of P- and
S-waves, SEG student session at University of Toronto
Jun-Wei Huang,
Oct 2007, Wave equation based separation of P- and S-waves, KEGS
presentation at University of Toronto
Junwei is a Teaching Assistant in the Department of Physics, University of Toronto since September 2004, and Math & Physics Don at Trinity College between September 2006 and May 2008.
