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ILLUSTRATIONS 



Page 

 Figure 1. Sketch profile showing the components and average depths of 



the continental margin. Not to scale 3 



Figure 2. Diagrammatic sketch showing typical oil and gas types of traps. 23 



Figure 3. Conceptual design of an underwater petroleum production 

 system. The system involves construction and emplacement on the 

 ocean floor of man-rated pressure hulls containing normal oilfield com- 

 ponents. Components are serviced by manned capsule (see Fig. 4). 

 Adapted from material supplied by Lockheed Petroleum Services, Ltd., 

 British Columbia, Canada 38 



Figure 4. Service capsule (Top sphere) being lowered to couple with well- 

 head cellar (Bottom sphere) encapsulating production equipment. 

 The service capsule provides transportation from the surface to the ocean 

 floor, and contains life s ipport and oilfield equipment. The one-atmos- 

 sphere, shirt-sleeve environment eliminates the need for highly specialized 

 diving personnel and support facilities. Photo courtesy of Lockheed Petro- 

 leum Services, Ltd., British Columbia, Canada 39 



Figure 5. Artist's impression of offshore oilfield development showing 

 underwater production, separation, and storage systems. Photo courtesy 

 of British Petroleum Company, Ltd. (1969) 40 



Figure 6. United Nations bodies with responsibilities in the marine 



sciences 49 



Figure 7. Organizational chart showing the relationships within the Fed- 

 eral Government for decisionmaking in marine affairs (1967) 60 



