Slot: sample measured depth (samp_md)
In non deviated well, measured depth is equal to the true vertical depth, TVD (TVD=TVDSS plus the reference or datum it refers to). In deviated wells, the MD is the length of trajectory of the borehole measured from the same reference or datum. Common datums used are ground level (GL), drilling rig floor (DF), rotary table (RT), kelly bushing (KB) and mean sea level (MSL). If "other" is specified, please propose entry in "additional info" field
URI: MIXS:0000413
Inheritance
Applicable Classes
Name |
Description |
Modifies Slot |
Biosample |
Biological source material which can be characterized by an experiment |
no |
Properties
Aliases
Examples
Annotations
property |
value |
expected_value |
measurement value;enumeration |
Schema Source
LinkML Source
name: samp_md
annotations:
expected_value:
tag: expected_value
value: measurement value;enumeration
preferred_unit:
tag: preferred_unit
value: meter
occurrence:
tag: occurrence
value: '1'
description: In non deviated well, measured depth is equal to the true vertical depth,
TVD (TVD=TVDSS plus the reference or datum it refers to). In deviated wells, the
MD is the length of trajectory of the borehole measured from the same reference
or datum. Common datums used are ground level (GL), drilling rig floor (DF), rotary
table (RT), kelly bushing (KB) and mean sea level (MSL). If "other" is specified,
please propose entry in "additional info" field
title: sample measured depth
examples:
- value: 1534 meter;MSL
from_schema: https://w3id.org/nmdc/nmdc
aliases:
- sample measured depth
rank: 1000
is_a: core field
slot_uri: MIXS:0000413
alias: samp_md
domain_of:
- Biosample
range: QuantityValue
multivalued: false