Petrophysics - Rock Physics

Rock Physics and Computational Geophysics

 

Instructor

  PhD José M. Carcione (OGS, Trieste, Italy)

Duration

  2 days

Disciplines

  Reservoir Characterization – Rock Physics

Level

  Advanced

Languages

  English, Italian, Spanish

EurGeol

  10 CPD points

Keywords

 
 ANISOTROPY    ATTENUATION    BOREHOLE GEOPHYSICS    ELECTROMAGNETISM   ENVIRONMENTAL GEOPHYSICS   HYDROCARBON EXPLORATION   POROELASTICITY   SYNTHETIC SEISMOGRAMS   VISCOELASTICITY   WAVE SIMULATION 

 

Next available locations:

 

 

Course description

This course presents the fundamentals of physics and numerical simulation of wave propagation in anisotropic, inelastic and porous media, including the analogy between acoustic waves (in the general sense) and electromagnetic (EM) waves. The emphasis is on geophysical applications for hydrocarbon exploration but will also include the fields of earthquake seismology, rock physics and material science. Moreover, the course illustrates the use of seismic and EM modelling, with an account of the numerical algorithms for computing the synthetic seismograms and radargrams, including applications in the field of geophysical prospecting, seismology and rock physics, such as evaluation of methane hydrate content, upscaling techniques, detection of overpressure, Antarctic and permafrost exploration, exploration of the Earths deep crust and time-lapse for monitoring of CO2 injection.

 

Course objectives

On completion of the course, participants will be able to:

  • Understand the physics of seismic (and EM) wave propagation and diffusion fields in real media, such as many types of rocks;
  • Solve complex models using numerical methods, such as the finite-difference and Fourier techniques;
  • Apply the concepts to seismic and EM prospecting, simulation of earthquakes, surface radar applications, EM low-frequency methods for environmental and prospection problems and rock physics.

 

Course outline

Methods:

  • Seismic anisotropy
  • Seismic attenuation
  • Poroelasticity
  • Forward modeling
  • Seismic rock physics
  • Computation of synthetic seismograms
  • Hooke’s law and wave equation
  • Reflection coefficients. AVO
  • Mechanical viscoelastics models. The wave equation with attenuation
  • EM rock physics
  • EM Maxwell’s equation
  • The seismic-EM analogy
  • Geo-radar equations
  • The diffusion equation in EM prospecting

Applications:

  • Fluid flow in porous media
  • Unconventional resources. Oil and gas shales
  • Cross-well seismic and EM methods
  • A review of upscaling methods
  • AVO cases
  • Q and velocity anisotropy in fractured media
  • Geophone-soil coupling models
  • Physics and simulation of waves at the ocean bottom
  • Recent advances to model waves in reservoir and source rocks
  • Theory, simulation and case histories for detection and quantification of gas hydrates
  • Theories for pore-pressure prediction and mud-weight design, with case histories
  • Seismic-modeling case histories
  • Borehole waves
  • Injection of fluids and sesimic and EM monitoring. Time-lapse cases
  • Tools for GPR applications

 

Participants' profile

The course is useful for geologists, geophysicists, petrophysicists, reservoir engineers, mathematicians and physicists. The emphasis is on geophysical applications for hydrocarbon exploration but researchers in the fields of earthquake seismology, rock acoustics and material science — including many branches of acoustics of fluids and solids (acoustics of materials, non-destructive testing, etc.) — may also find this course useful.

 

Prerequisites

Participants should have knowledge of the basic concepts of wave theory.

 

About the instructor

Dr José Carcione

José M. Carcione has the degrees “Licenciado in Ciencias Físicas” (Buenos Aires University), “Dottore in Fisica” (Milan University) and Ph.D. in Geophysics (Tel-Aviv University). From 1978 to 1980 he worked at the “Comisión Nacional de Energía Atómica” at Buenos Aires. From 1981 to 1987 he was employed as a research geophysicist at YPF (national oil company of Argentina). Presently, he is Director of Research at OGS. He was awarded the Alexander von Humboldt scholarship for a post-doc at Hamburg University (1987-1989). In 2007, he received the EAGE Anstey award in London. He published more than 230 journal articles on acoustic and electromagnetic numerical modeling, with applications to oil exploration and environmental geophysics. He is the author of the books “Wave fields in Real Media — Theory and numerical simulation of wave propagation in anisotropic, anelastic, porous and electromagnetic media” (see (Elsevier, 2015, 3rd edition), and “Seismic Exploration of Hydrocarbons in Heterogeneous Reservoirs” (Elsevier, 2015) He has been editor of “Geophysics” since 1999. He has coordinated many projects funded by the EU and private companies. Carcione has an H-index: 49, according to Google Scholar. In 2017 he received the EAGE Conrad Schlumberger award.

 

Recommended reading

Participants are recommended to preferably read "Elastic waves in the Earth" (1979) by Pilant, "Physical properties of rocks" (2011) by Schon, and "Wave fields in real media" by Carcione (2015), before attending the course.

 

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