Field Type

The IGS classifies Petroleum Fields into one of six Field Types:

 

● O

Oil

Field Produces Oil
● G

Gas

Field Produces Gas
● OG

Oil and Gas

Field Produces Oil and Gas
● S

Storage

Field is used for fluid (almost always gas) storage
●

C

 Consolidated Field is no longer current because it was consolidated with another field.
● NAS New Albany Shale Field produces gas from the New Albany Shale.

 

Fields producing gas from the New Albany Shale are handled differently than other petroleum fields in several ways:

  1. Only wells completed for production from the New Albany Shale are included in an NAS field. No other wells within the NAS Field Outline are considered part of the NAS field.

  2. NAS fields can overlap the boundaries of non-NAS fields. They may not overlap with another NAS-field; if the outline would cross over the outline of another NAS field, the fields should be consolidated into a single NAS field.

  3. At least for the short time, well counts and Pay Zone Summaries for NAS fields may not be correct because wells in a NAS field that overlaps a non-NAS field may share some of the same wells. This is a design issue that will be corrected when time permits.

  4. The reason NAS fields are handled exceptionally is avoid having many non-NAS oil and gas fields with well-established local names from being cobbled up by consolidation into "mega NAS fields" whose names are not helpful in describing the locations of the smaller oil and gas fields.