Wellbore Segment
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Wellbore Segment
Definition
A Wellbore Segment is a unique drilled interval within the Well. It can be the original Wellbore (from the origin to the terminating point) or it can be a deepening, bypass or sidetrack, as measured from the downhole kickoff or sidetrack point to a bottomhole terminating point.
Clarification
A Wellbore Segment can belong to more than one Wellbore. A sidetrack would have two or more wellbore segments, or parts thereof. For example, in a sidetrack off the original wellbore, the top segment is the footage of the parent/original wellbore from the origin to the kickoff point; the bottom segment is the footage from the kickoff point to the new terminating point. Note that term "drilled interval" is key as it refers to a physical thing (ground broken) and differentiates from a log interval which may not correlate to a newly drilled wellbore.
Wellbore Segment in the PPDM Data Model
Wellbore Segments are loaded in the WELL table, with WELL_LEVEL_TYPE = 'Wellbore Segment'. Create relationships between the wellbore segment and other well components in the WELL_XREF table.
A high level mapping of well components and PPDM 3.8 is shown in the attachment.
What is a Well Workgroup
This definition has been created and approved by the What is a Well workgroup, who have developed baseline definitions for well components (http://www.WhatIsAWell.org). Recommendations for changes may be discussed in the discussion page (see the tab above) or forwarded directly to the workgroup
