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Petroleum Geology Acronyms


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Compressional wave slowness (DTC)

This is an acronym for a well log used in the oil and gas industry. You could have found the code DTC in your log evaluation software or your corporate datastores. The acronym stands for 'Compressional wave slowness'. This log is often used in the industry.

This log can be used to evaluate the time it takes for a compressional wave to traverse a fixed distance; reciprocal of Compressional Velocity.

In general this log thus reflects units of the interval transit time (The travel time of a wave over a unit distance, hence the reciprocal of wave velocity).

This log usually has the unit 'Acoustic Slowness'. This is the time interval per unit length, Delta-T, necessary to attenuate a traveling acoustic wave. Applies to all types of Delta-T: Compressional, Shear and Stoneley.

Data for this log is produced by a tool that uses a acoustic logging technique and can be used to investigate the acoustic slowness of the formation. Similar logs are listed below:




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