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Sample type
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Sampling method
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Sampling frequency
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Analysis
|
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Active tanks before drilling
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Directly from active tank(s)
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50 mL, every day, from both actively mixed tanks
|
PFC (every sample), DNA, cell counts (certain samples)
|
|
Active tanks during drilling
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From mud fluid line, before drilling mud goes into borehole
|
50 mL, every day, from both actively mixed tanks
|
PFC (every sample), DNA, cell counts (certain samples)
|
|
Unwashed cuttings
|
Every 50 m except during coring
|
50 mL, every day, from both actively mixed tanks
|
PFC (every sample), DNA, cell counts (certain samples)
|
|
Circulating mud fluid from mud ditch
|
Every 50 m except during coring
|
50 mL, every day, from both actively mixed tanks
|
PFC (every sample), DNA, cell counts (certain samples)
|