Summary

A borehole vCard enables to discover borehole data through the Web. It contains core information describing a borehole, and provides enough 'hooks' to connect to the underneath borehole information system.

The description below stems from EPOS which, building on GeoSciML Lite, expressed a first list of needs. For more context, see : https://external.opengeospatial.org/twiki_public/GeoSciMLswg/SouthamptonGsmlSwgSept2017 -> Borehole_SimpleFeature_UML_model_Grellet.pptx The reference to the controlled list of terms identified in EPOS to be used for some properties have been removed in the descriptions below.

Terms

Concept/Feature: Borehole

Definition : "A borehole is the generalized term for any narrow shaft drilled in the ground.". INSPIRE definition (removing ", either vertically, horizontally, or inclined." from the initial GeoSciML one).

Properties/Attributes

identifier

A unique identifier for the borehole and should be formatted as an absolute URI conformant to RFC 3986. source : GeoSciML

name

A human-readable display name for the borehole. source : GeoSciML

description

A human-readable description for the borehole. source : GeoSciML

purpose

The purpose for which the borehole was drilled. source : GeoSciML

status

The current status of the borehole. source : GeoSciML

drillingMethod

The drilling method used for this borehole. source : GeoSciML

operator

The organisation or agency responsible for commissioning of the borehole (as opposed to the agency which drilled the borehole). source : GeoSciML

driller

The organisation responsible for drilling the borehole (as opposed to commissioning the borehole). source : GeoSciML

drillStartDate

The date of the start of drilling formatted according to ISO8601 (e.g., 2012-03-17). source : GeoSciML

drillEndDate

The date of the end of drilling formatted according to ISO8601 (e.g., 2012-03-28). source : GeoSciML

startPoint

The position relative to the ground surface where the borehole commenced. source : GeoSciML

inclinationType

The type of inclination of the borehole. source : GeoSciML

boreholeMaterialCustodian

Organisation that is the custodian of the material recovered from the borehole. source : GeoSciML

boreholeLength_m

Length of a borehole, in metres, as determined by the data provider. Length may have different sources (e.g., driller's measurement, logger's measurement, survey measurement). source : GeoSciML

elevation_m

Elevation data, in metres, for the borehole (i.e., wellbore) start point. This is a compromise approach to allow for delivery of legacy 2D data without elevation data, and for software that cannot process a 3D GM_Point. source : GeoSciML

elevation_srs

A URI of a spatial reference system of the elevation value. (e.g., mean sea level). Mandatory if elevation_m is populated. The SRS shall be a one dimensional vertical SRS (i.e., EPSG code in the range 5600-5799). source : GeoSciML

positionalAccuracy

An estimate of the accuracy of the location of the borehole collar location. Ideally, this would be a quantitative estimate of accuracy (e.g., 20 metres). source : GeoSciML

source

Details and citations to source materials for the borehole and, if available, providing URLs to reference material and publications describing the borehole. This could be a short text synopsis of key information that would also be in the metadata record referenced by metadata_uri. source : GeoSciML

parentBorehole

Reference to one or more representations of a parent borehole (e.g., a parent well of a sidetrack wellbore). source : GeoSciML adapted (initial attributes in GeoSciML is called parentBorehole_uri)

metadata

Reference to a metadata record describing the provenance of data. source : GeoSciML adapted (initial attributes in GeoSciML is called metadata_uri)

shape

Geometry defining the extent of the borehole start point. source : GeoSciML

cored

Indicates if a core sample has been retrieved from the borehole when drilling. source : EPOS

accessToPhysicalDrillCore

Indicates whether access to physical drill core is possible. source : EPOS

boreholeUse

The curent use of the borehole which could differ from the purpose for which the borehole was initially drilled. source : EPOS

relatedFeature

Link to more content regarding the borehole

• detailedDescription
• geophysicalLogs
• geologicalDescription
• groundWaterLevel
• groundWaterChemistry
• rockGeochemistry
• poreGasChemistry
• geoTechnicalInfo

source : EPOS