An advancement of casing while drilling, or retraction during an activity such asgrouting, with the time interval and the start and end positions of the casing base.
Database handle for the object. It is of XML type ID, so is constrained to beunique in the XML document within which it occurs. An external identifier for the object inthe form of a URI may be constructed using standard XML and XPointer methods. This is doneby concatenating the URI for the document, a fragment separator, and the value of the idattribute.
Source
<element name="CasingAdvancement" type="diggs:CasingAdvancementType"><annotation><documentation>An advancement of casing while drilling, or retraction during an activity such as grouting, with the time interval and the start and end positions of the casing base.</documentation></annotation></element>