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Petroleum Geology Acronyms


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Time Since Drilled from MPR Attenuation 2MHz (ATTH)

This is an acronym for a well log used in the oil and gas industry. The acronym ATTH is a unique identifier to recognize this particular log and can be encountered in your log evaluation software or your corporate datastores. Time Since Drilled from MPR Attenuation 2MHz is the full name for this log. The business value of this log is often deamed high.

The values of this log represent the time delay between the drill bit and a resistivity sensor reaching a given point in the wellbore during MWD/LWD logging. At a higher level, this can be seen as a measure of the delay time. This is a measure of the time difference by which one event lags another. In refraction seismic work, the additional time required to traverse a raypath over the time which would be required to traverse the horizontal component at the highest velocity encountered on the raypath.

This log usually has the unit 'Time'. This is the 1) The measured or measurable period during which an action, process, or condition exists or continues. 2) The point or period when something occurs. 3) A fixed moment or hour for something to happen, begin, or end. 4) A historical period.

Data from this log can be used to investigate the time interval of the formation. Similar logs are listed below:







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