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The AAPG/Datapages Combined Publications Database
AAPG Bulletin
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An elastic energy pulse is generated in a pressure chamber (triaxial system) containing a cylindrical rock sample. The dynamic elastic coefficients of the porous rock are determined by analyzing the first arrivals and the later events of elastic energy. The pulse durations are less than one microsecond. By changing the effective pressures in the triaxial system the elastic coefficients of the rock sample are varied. The variation of the elastic coefficients have been measured as a function of effective stresses.
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