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Welcome to Petroleum Geology Forums
This is a free online community that aims to bring petroleum professionals and geologists together and share valuable knowledge. Registration is easy so become a member now for instant free access.
- Petroleum Geologists can stay up to date with industry related topics and exchange ideas and concepts.
- Upstream Oil and Gas Consultants get a chance to share their expertise and gain exposure to land future projects.
- Geology students and graduates can join the discussion and get into contact with potential future employees.
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Petroleum Geology AcronymsBrowse through the Acronyms using the letters above or search for the acronym or it's description using the form below. If you have a acronym or abbreviation you would like to see in this list please contact us.
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Time Since Drilled from MPR Phase Difference (PDER) |
This is an abbreviation for a well log acquired after or during drilling. You could have found the code PDER in your log evaluation software or your corporate datastores. The full name for this log used in the industry is 'Time Since Drilled from MPR Phase Difference'. The business value of this log is often deamed high. This log can be used to evaluate the time delay between the drill bit and a resistivity sensor reaching a given point in the wellbore during MWD/LWD logging. At a more general level these values are measures of the delay time. Better said, 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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