5 CommonEnumerations Topic Version1Published11/11/2016Topic Change HistoryFor StandardCOM v2.1 Notes: 5.1 ChannelClassKind 5.2 ChannelClassKindExt 5.3 ExistenceKind A list of lifecycle states like actual, required, planned, predicted, etc. These are used to qualify any top-level element (from Epicentre 2.1). 5.4 GeochronologicalRank Qualifier for the geological time denoted by the GeochronologicalUnit: eon, era, epoch, etc. 5.5 LithologyKind A description of minerals or accessories that constitute a fractional part of a lithology description 5.6 LithologyKindExt 5.7 LithologyQualifierKind 5.8 LithologyQualifierKindExt 5.9 LithostratigraphicRank Specifies the unit of lithostratigraphy. 5.10 MatrixCementKind Lithology matrix/cement description. The list of standard values is contained in the WITSML enumValues.xml file. 5.11 MeasureClass Measure class values. The list of standard values is contained in the WITSML enumValues.xml file. 5.12 QuantityClassKind 5.13 ReferenceCondition Combinations of standard temperature and pressure including "ambient". The list of standard values is contained in the enumValuesProdml.xml file. 5.14 ReferenceConditionExt 5.15 UnitOfMeasure This is a list of the valid units of measure across all the measure classes. Its intended use is to ensure that a valid unit of measure string is used in cases where the measure class is not known in advance or is otherwise not explicitly modeled in the XML schema. 5.16 UnitOfMeasureExt A variant of UnitOfMeasure which has been extended to allow any user-defined unit of measure which follows an authority:unit pattern; the colon is mandatory. 5.17 WellboreDatumReference Reference location for the measured depth datum (MdDatum). 5.18 WellStatus These values represent the status of a well or wellbore.