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MUD MEASUREMENTS
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Diagnostic tests
Mud Balance
The starting point of
pressure control is thecontrol of mud density
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Marsh Funnel Consistency of mud
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Rotational Viscometer
Measures Rheological propertiesof mud
Rheology is the study of the flow
characteristics of a drilling fluid
and how these characteristicsaffect movement of the fluids
From this info the circulating
system can be designed or
evaluated regarding how it willaccomplish certain desired
objectives
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API Filter press -
measure
filtration rate
and filter cake
thickness
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Sand Content
Sand causesexcessive wear onmixing equipment,drill string, and
onpump parts
The sand content in amud system isestimated by wetscreen
analysis usinga 200-mesh (74-micron) screen
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pH
Drilling fluid pHmeasurements and pH
adjustments are
fundamental to drilling
fluid control becauseclay interactions,
solubility of additives,
and contaminant
removal are all pH-dependent
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Retort -Water, Oil and Solids
Accurate
measurement of
water, oil and solids
content providesfundamental
information for control
of mud properties and
is essential forevaluating solids
control equipment
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HTHP filter press
measure filtration rate
and filter cake
thickness at higher
differential pressuresand temperatures
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Additives
