operations, and onshore support functions. An example of the types and 

 quantities of goods required to support each exploratory well are listed 

 below [34]: 



10.000' Well 14.000' Hell 



30" Casing 



20" Casing 



13 3/8" Casing 



9 5/8" Casing 



Bentonite 



Cement 



Barite 



Miscellaneous consumables 



Fuel (including supply vessel fuel) 



Drill Water 



TOTAL 5,193 tons 7,811 tons 



Although the level of activity in a few service industries will 

 peak during the development phase and taper off during the production 

 phase, there will most likely be an increasing market for maintenance 

 services at the platforms and other facilities. While the relative size 

 and activity of component industries oscillates during the life of the 

 field, all service bases have common components. 



Community Effects 



A service base is characterized by the following attributes of 

 interest to shoreline communities: major source of employment for both 

 construction and operation, potential tax base, medium-size parcel of 

 land along the waterfront in a developed harbor and access to all 

 transportation systems. 



Employment : Assuming new facilities are required for a permanent 

 support base, one study suggested an average of 20 and a maximum of 90 

 employees would be required during a one-year construction period. This 

 level of activity would be a measurable generator of income in a small 

 community [28]. A temporary base, by contrast, will use or modify 

 existing structures and facilities to minimize investment, thus providing 

 minimal construction employment. 



During the exploration phase a temporary service base involving 

 minimal investments would be located in a frontier area. The total 



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