Sonic logging

Source and receiver relationships for a sonic log

Sonic logging is a well logging tool that provides a formation’s interval transit time, designated as ${\Delta} t$ , which is a measure of a formation’s capacity to transmit seismic waves. Geologically, this capacity varies with lithology and rock textures, most notably decreasing with an increasing effective porosity. This means that a sonic log can be used to calculate the porosity of a formation if the seismic velocity of the rock matrix, $V_{mat}$ , and pore fluid, $V_l$ , are known, which is very useful for hydrocarbon exploration.

单词	Sonic log
释义	Sonic log 英语百科 Sonic logging Sonic logging is a well logging tool that provides a formation’s interval transit time, designated as ${\Delta} t$ , which is a measure of a formation’s capacity to transmit seismic waves. Geologically, this capacity varies with lithology and rock textures, most notably decreasing with an increasing effective porosity. This means that a sonic log can be used to calculate the porosity of a formation if the seismic velocity of the rock matrix, $V_{mat}$ , and pore fluid, $V_l$ , are known, which is very useful for hydrocarbon exploration.
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