By Fred J. Hilterman
Over the last 30 years, seismic interpreters have often utilized shiny spot and AVO expertise for spotting customers and predicting lithology. New amplitude attributes have been extra to this expertise as new exploration difficulties have been outlined. R&D keeps within the box of amplitude interpretation, specially while E&P bills expand as extra critical environments are explored, resembling the ultra-deepwater performs. With the excessive curiosity in decreasing exploration probability, this direction addresses the method of an amplitude interpretation and the next advantages and obstacles that you possibly can anticipate in a variety of rock-property settings. This publication, initially produced to be used with the fourth SEG/EAGE amazing teacher brief path, starts with a evaluate of relationships among rock homes and geophysical observations. useful difficulties illustrate the assumptions and barriers of ordinary empirical transforms, and tactics for accomplishing and verifying fluid-substitution ideas are offered. The publication identifies elements of the seismic reaction most suitable for differentiating pore fluid from lithologic results. box examples emphasize what blend of seismic signatures might be anticipated for various rock-property environments. to aid choose the easiest seismic characteristic for calibrating amplitude to rock homes, principles of thumb are supplied for predicting AVO responses and reading lithology from saw responses. A case heritage is additionally supplied. The final half examines the varied amplitude attributes that may be extracted from seismic facts to quantify an interpretation. advantages and barriers of those attributes in smooth- to hard-rock environments are mentioned with version facts and in case histories. (Video path additionally available.)
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