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
Alias: samp_md
Inheritance
Applicable Classes
Properties
Aliases
Examples
- Value must be reported in m. Provide the numeric portion only.
Annotations
property |
value |
expected_value |
measurement value;enumeration |
preferred_unit |
meter |
occurrence |
1 |
storage_units |
m |
Schema Source
Mappings
Mapping Type |
Mapped Value |
self |
MIXS:0000413 |
native |
nmdc_sub_schema:samp_md |
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'
storage_units:
tag: storage_units
value: m
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
comments:
- Value must be reported in m. Provide the numeric portion only.
examples:
- value: '1534'
from_schema: https://example.com/nmdc_submission_schema
aliases:
- sample measured depth
rank: 351
is_a: core field
slot_uri: MIXS:0000413
alias: samp_md
domain_of:
- HcrCoresInterface
slot_group: mixs_core_section
range: float
multivalued: false
unit:
ucum_code: m