APPENDIX A 



Employment and Locational Factors 

 for Direct OCS-Related Facilities 



Profiles of 15 major facilities are presented below. Types of 

 employment are described for construction and operation of each facility. 

 Time requirements for construction and operation are also presented. 

 This information is drawn from prior experiences rather than estimated 

 requirements whenever possible. 



Each profile also includes a discussion of the coastal dependence and 

 lease dependence of each facility. Facilities that serve more than one 

 lease sale or field have greater flexibility in choice of a site. 



A.l. GEOPHYSICAL SURVEYING: Geophysical surveying has little effect on 

 employment in nearby onshore communities. Although some employment 

 positions may be filled locally, most employees on geophysical survey 

 vessels travel with the vessel from job to job. 



One form of geological exploration, stratigraphic test drilling, can 

 have greater effect. This process requires the drilling of a well from a 

 drilling rig to attain core samples (but not to test directly for oil or 

 gas). Its employment consequences are similar to those of an exploratory 

 drilling rig. 



A. 2. EXPLORATORY DRILLING: The three types of drill rigs (jack-up, semi- 

 submersible, and drillship) have somewhat different employment consequences. 

 Estimates of employment per rig range from 113 (for a drillship) to 217 (for 

 a semi-submersible rig) [21, 15]. 



Employees who work on an exploratory rig typically migrate with the rig 

 from job to job. Their homes are often near the rig's home port, and many 

 of them return home when off duty. If they do take up residence in a 

 distant drilling area, they do so only temporarily and make minimal demands 

 on the community. 



Nevertheless, exploratory drilling may have some effects on employment 

 in nearby onshore communities. In one study involving a semi-submersible 

 rig, it was estimated that 80 of 217 employees would be hired locally; that 

 87 others would maintain temporary local residences during drilling; and 

 that 50 would commute to homes out of the local area while off duty [21]. 

 Local hiring is likely to be principally in the unskilled category. 



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