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| | Equipment and Facilities |
 | | The subtypes are preserved from previous versions of Epicentre to provide continuity. |
 | | As the drilling and completions functions, in particular, specify purchase, maintenance, usage and disposal of a broad variety of types facilities, the Epicentre data model provides a number of subtypes of General_facilities for drilling. |
 | | For example, the Drilling_rig superstructure is a General_facility assembled from parts which include the tower, drill floor, cables, pulleys, motors, compressors, etc. The Drillstring and its components are described in the Well Information topic. |
| www.posc.org /Epicentre.2_2/DataModel/SubjectDiscussions/lb_eq.html (3570 words) |
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