The GeoSciML Borehole package contains model elements for representing Boreholes. This is primarily through re-use of standard components from the (external) Observations and Measurements package.
A Borehole OriginPosition is a feature corresponding to the start point of a borehole log. This may, but not necessarily, correspond to the borehole collar location (eg, kelly bush).
If a text descripiton of the location is available, it should be placed in the gml:description for that feature. If no GM_Point is available, an OGC nil value should be used.
Implementers delivering 3-D origin locations should provide an elevation to improve interoperability.
In situations where the origin position changes over the life of the borehole (eg, due to subsidence or destruction of the original collar), the origin position should be updated to the new location.
The location of the BoreholeCollar
Compromise approach to supply elevation explictly for location; this is to allow for software that cannot process 3-D GM_Point. Use null if elevation is unknown. Direct position shall have a dimension of 1, and CRS will be a "vertical" CRS (e.g. EPSG CRSs in the range 5600-5799).
The hole that has this collar for its start point
A special kind of Mapped Feature whose shape is 1-D interval and uses the SRS of the containing borehole
A borehole is the generalized term for any narrow shaft drilled in the ground, either vertically or horizontally.
A Borehole OriginPosition is a feature corresponding to the start point of a borehole log. This may, but not necessarily, correspond to the borehole collar location (eg, kelly bush).
Specifies the Borehole details
Specifies the drilling method and borehole diameter for intervals down the borehole
Links to 1-D MappedFeature instances that are logged (interpreted) intervals within a borehole. This requirement is common in geoscience boreholes
Borehole specific index (or metadata) information
Organisation responsible for commissioning the borehole (as opposed to drilling the borehole)
The organisation responsible for drilling the borehole (as opposed to commissioning the borehole)
The time period during which drilling of the borehole occurred.
gsmlbh:BoreholeStartPointCodeType
Indicates the position relative to ground surface where the borehole commenced. Appropriate terms would include Drilled from Ground Surface; Drilled Underground; Drilled from Quarry Floor etc
gsmlbh:BoreholeInclinationCodeType
Indicates the inclination of the borehole. Appropriate terms would include vertical; inclined up; inclined down, horizontal
Organisation that is custodian of the core recovered from the borehole
gsmlbh:BoreholePurposeCodeType
The purpose for which the borehole was drilled. eg, site investigation, mineral exploration, hydrocarbon exploration, water resources
The custodian (person or organisation) that is the custodian of data pertaining to this borehole.
The "length" of a borehole will be determined by the data provider (ie, "length" can have different sources, like drillers measurement, loggers measurement, survey measurement, etc)
gsmlbh:BoreholeDrillingMethodCodeType
Indicates the drilling method used. Appropriate terms would include rotary air blast; auger; diamond core; air core; etc
The diameter of the drilled hole
A shape that is a 1-D interval (eg, a "from" and "to", or "top" and "base" measurement) and uses the SRS of the containing borehole