Oilfield Glossary

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Note: Definitions provided on this website are for reference purposes only. Engineers and professionals should independently confirm all information using industry standards.

Mud conductivity meter

This instrument measures the electrical conductivity (or resistivity) of the mud filtrate. It is crucial when drilling with water-based muds to track changes in salinity.

A sudden increase in chlorides (salinity) can indicate a saltwater flow from the formation (a kick). It is also used to calibrate resistivity logs.

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