
Sampling & Shipping Instructions
Oil Sampling Instructions:
Oil Kit Contents:
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Glass Vials (20 ml capacity)
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White Vial Caps
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Teflon Tape
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Chain of Custody (CoC)/Inventory
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Vial Labels
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Black Sharpie
Preferred Sampling Point: Separator
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Flush the sample valve/line with oil before sampling (to ensure a clean & uncontaminated sample is collected)
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Fill the 20ml glass vial up to the neck of the vial (leave a small amount of headspace at the top)
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Take duplicate samples (incase one breaks during shipping)
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2 vials per well​
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Tightly secure the white cap on the vial and then wrap the cap (clockwise) with Teflon tape
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DO NOT wrap the vial threads with Teflon tape (this could cause the sample to leak during shipment)​
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Label every vial with the following information:
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Well name/API #​
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Sampling date
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Operator/company
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Chain of Custody (CoC)
Complete the CoC sheet with the following information:
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well name
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Depth (if applicable)
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API #/UWI #
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Sampling date

Return vials to the provided padded shipping container and ship via UPS GROUND to:
GeoMark Research
ATTN: Alex Zumberge
9748 Whithorn Dr
Houston, TX 77095
Cuttings Jar Sampling Instructions:
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After collecting cuttings from the shaker, lightly rinse with water (for WBM systems) or diesel (for OBM systems)
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Open the jar and fill to the FILL LINE
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Make sure to capture enough rock pieces (and minimal fluid)
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Cuttings should be damp/wet but not saturated with excess fluid
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Label every jar with the following information:
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Well name​
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Sample depth
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API #/ UWI #
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Sampling date
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Chain of Custody (CoC)
Complete the CoC sheet with the following information:
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Well name
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Sample depth
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API #/UWI #
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Sampling date
Return jars to the provided padded shipping container and ship via UPS GROUND to:
GeoMark Research
ATTN: Alex Zumberge
9748 Whithorn Dr
Houston, TX 77095
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Water Sampling Instructions:
Water Kit Contents:
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250 ml Container with Nitric Acid (small)
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500 ml Container (large)
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Teflon Tape
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Chain of Custody (CoC)/Inventory
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Black Sharpie
Preferred Sampling Point: Separator
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Flush the sample valve and line with water before sampling
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DO NOT dump out or flush out Nitric Acid from 250 ml container
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Fill BOTH containers to 95% capacity (leave a small amount of headspace
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Each well should have water in TWO containers; one large and one small
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Tightly secure the white caps on the 500 ml (large) AND 250 ml (small) containers; secure both with Teflon tape
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Label every container with the following information:
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Well name​
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Sampling date and time
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Operator/company​
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Samples should be kept in an air-conditioned environment OR chilled cooler AND out of the sun
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Chain of Custody (CoC)
Complete the CoC sheet with the following information:
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Well name
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Depth/reservoir unit
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Sampling date
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Return samplesto the provided padded shipping container and ship via UPS GROUND to:
GeoMark Research
ATTN: Alex Zumberge
9748 Whithorn Dr
Houston, TX 77095

If you have any additional questions about sampling or shipping, please reach out to Jessica Ortiz, Dangerous Goods & Hazmat Coordinator.
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Email: jortiz@geomarkresearch.com
phone: (832)-532-2470