the ocean a plurality of inlet and outlet ports 6 are provided for coupling with various outside equipment one example of the type of processing equipment that can be provided within such a spherical structure is a separator system for separating oil gas and water by providing such processing equipment within such a spherical structure it is possible to eliminate the need for a floating superstructure above the ocean floor in order to enable entry into the spherical structure 1 the opening 7 is provided within the top of the structure this opening is connected to a flange element 4 which has a sealing ring 5 at its upper end this opening 7 within the sphere enables workmen to descend from sea level and enter the sphere for the operation and maintainence of the processing equipment maintained within the sphere accordingly for this purpose an extension chamber would be coupled to the flange 4 such as illustrated by the dashed lines in fig2 the basic transportation device for enabling workers to get down to such a sphere with no more than 34 one atmosphere 34 of pressure has already been previously developed by shell oil company and such a procedure could be utilized in the utilization of the spherical structure described each of the spherical sections is formed with the utilization of a substantially triangular spherical shaped frame the frame is made of a plurality of interconnected trusses formed of a plurality of web members 8 with the trusses being arranged so as to extend in a substantially radial direction from the center of the sphere the web members 8 are interconnected so as to form each truss or side of the frame with end web members 9 being provided.