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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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Borehole Corrected CN (CNC) |
This is an abbreviation for a well log used in the oil and gas industry. The code CNC is a unique identifier to recognize this particular log and can be found in any (ASCII) log files provided by the logging company. The code stands for 'Borehole Corrected CN'. The business value of this log is often deamed high. This log can be used to evaluate the porosity as measured with an neutron logging device. In general this log therefore displays units of the apparent porosity. This can be explained as being the initial estimate of porosity, normally from logs, not corrected for the (often large) effects of clays, gas, etc. Such estimates should only be used for qualitative interpretation of clean, gas-free intervals. At a higher level, this can be seen as a measure of the volume fraction. Better said, the ratio of the volumes occupied by two components, or by one component to the total volume of the system.This log usually has the unit 'Porosity'. This is the pore volume per unit gross volume. Porosity is determined from measurements on cores or interpreted from logs. Data for this log is produced by a tool that uses a neutron logging technique and can be used to investigate the porosity of the formation. Similar logs are listed below:
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