| Code | UWI |
| Name | Unique Well Identifier |
| Parents | Property > Identifier |
| Description | The unique Identifier given to a well or a borehole specified in a given naming system. This identifier can be granted by either an official regulatory commission such as the API 12/14 digits, the Canadian Petroleum Association (CPA) or by any organization (user, customer), described in Well.Naming_System. |
