6: Multicomponent Interpretation Techniques
Ideally, simultaneous interpretation of multicomponent seismic data begins with near perfect processing, where perfect processing causes any differences between two data sets to relate solely to the subsurface rock properties. Thus, the interpretation is an evaluation of the geologic factors creating the differences in the subsurface response to the two different types of seismic waves.
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Multicomponent Seismology in Petroleum Exploration
Many prospective basins of the world are, or will soon become, “mature” in the exploration sense. Increasingly we must resort to nonconventional technology and techniques to uncover the remaining hydrocarbon reserves that are often found in complex or subtle traps. Multicomponent seismology-the use of concurrent, combined shear (S)- and compressional (P)-wave seismology-is gaining acceptance in the exploration community as one tool that can provide direct measurements of subsurface rock properties. These measurements can detect new hydrocarbon accumulations, and aid in the efficient and economic development of newly found or existing reservoirs by providing detailed maps of reservoir porosity, lithology, and pore fluid distributions.