Oil & Gas Glossary 1.0
OIL & GAS TECHNICAL TERMS GLOSSARY
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Search Result for Filtrate
filtrate
2. the liquid portion of drilling mud that is forced into porous and permeable formations next to the borehole.
Pf
Abbreviation: the phenolphthalein alkalinity of the filtrate, reported as the number of milliliters of 0.02 Normal (N/50) acid required per milliliter of filtrate to reach the phenolphthalein end point.
M1
The methyl orange alkalinity of the filtrate, reported as the number of millimeters of 0.02 normal (n/50) acid required pr millimeter of filtrate to reach the methyl orange end point (pH 4.3).
filtrate
1. a fluid that has been passed through a filter.
filtrate
2. the liquid portion of drilling mud that is forced into porous and permeable formations next to the borehole.
streaming potential
The electrokinetic portion of the spontaneous potential electric-log curve that can be influenced significantly by the characteristics of the filtrate and mud cake or the drilling fluid that was used to drill the well.
endpoint
The point marking the end of one stage of a process. In filtrate analysis, the endpoint is the point at which a particular result is achieved through titration.
mud inhibitor
Substances generally regarded as drilling mud contaminants, such as salt and calcium sulfate, are called inhibitors when purposely added to mud so that the filtrate from the drilling fluid will prevent or retard the hydration of formation clays shells.
filtration qualities
The filtration characteristics of a drilling mud. In general, these qualities are inverse to the thickness of the filter cake deposited on the face of a porous medium and the amount of filtrate allowed to escape from the drilling fluid into or through the medium.