دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a deviation from the norm. In geology the term indicates an abnormality such as a fault or dome in a sedimentary bed.

n: usually refers to drill exploration well in the radioactivity, geochemistry and gravity abnormal area.

n: an anomaly on resistivity logs where a low resistance formation and ahigh resistance formation meet. The change in resistivitychannels the current causing characteristic horn-shaped signal responses in uncorrected logs. The effect can be corrected by to