Skip to content

Term: 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

Applicable Checklists and Extensions

NOTE: does not include Combinations (of checklists and extensions) that use samp_md.

Name Description Checklist/Extension
HydrocarbonResourcesCores A collection of terms appropriate when collecting samples and sequencing samp... Extension

Properties

  • Range: String
  • Cardinality: 0..1

Examples

Value
1534 meter;MSL

Annotations

  • Expected_value: measurement value;enumeration
  • Preferred_unit: meter

LinkML Source

name: samp_md
annotations:
  Expected_value:
    tag: Expected_value
    value: measurement value;enumeration
  Preferred_unit:
    tag: Preferred_unit
    value: meter
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/mixs
keywords:
- depth
- measurement
- sample
string_serialization: '{float} {unit};[GL|DF|RT|KB|MSL|other]'
slot_uri: MIXS:0000413
alias: samp_md
domain_of:
- HydrocarbonResourcesCores
range: string