downhole-intervals

schema/objects/downhole-intervals/1.2.0/downhole-intervals.schema.json

The downhole-intervals object captures the downhole geometry and data once desurveyed and possibly composited into target length intervals. They are represented as a series of lines grouped by hole ID.

Note that a downhole-interval object is a derivative object from the source data. The desurveying process adds a series of assumptions on the locations of each resulting segment. Different desurveying algorithms will provide different geometries.

This object is particularly useful in geological and geostatistical analysis where the spatial distribution of properties along drillholes needs to be quantified and analyzed.

To define the downhole intervals, the object requires:

• A table of start locations for each interval.
• A table of end locations for each interval.
• A table of mid-point locations for each interval (note that the mid-point is not necessarily the average of the start and end points, depending on the desurveying method applied to the source data).
• A pair of values "from-to" that note the start and end depth of the interval down the hole.
• Hole IDs for each interval to group them.

The object can also capture additional context such as whether the intervals are composited.

Properties

downhole-intervals (v1.3.0)

A description for downhole intervals.

Property	Type	Description	Flags
name	String	Name of the object.	⬆️ ✅
uuid	base-object-properties	Identifier of the object.	⬆️ ✅
description	String	Optional field for adding additional description to uniquely identify this object.	⬆️
extensions	Object	Extended properties that may be associated to the object, but not specified in the schema	⬆️
tags	Object	Key-value pairs of user-defined metadata	⬆️
lineage	lineage	Information about the history of the object	⬆️
bounding_box	bounding-box	Bounding box of the spatial data.	⬆️ ✅
coordinate_reference_system	crs	Coordinate system of the spatial data	⬆️ ✅
attributes	one-of-attribute	Attribute data.	⬆️
schema	String		✅
is_composited	Boolean	Is composited?	✅
start	locations	Start locations.	✅
end	locations	End locations.	✅
mid_points	locations	Mid-point locations.	✅
from_to	from-to	From-to description.	✅
hole_id	category-data	Hole IDs.	✅

Legend

Flag	Description
⬆️	Inherited property
✅	Required property