Abstract:
A structure for mounting equipment at a subsea location has a platform member and an anchor member, each with independently adjustable buoyancies. The two members are interconnectable and can be nested together for towing to their emplacement site, at which their buoyancies are sequentially adjusted, the anchor positioned, and the platform winched down and secured to the anchor. The platform is retrievable to the surface without an external power assist. The anchor member may also be retrieved if external power is available to blow the anchor ballast.
Abstract:
A separator receiving the output of a subsea well is connected to gas and liquid transmission conduits for delivery of the fluids for subsequent use or processing. The transmission conduits are controlled by valves responsive to pressures of the system and the force of springs.
Abstract:
In the environment of a subsea storage tank for petroleum production, a primary element is mounted within a tube extended through the tank top to sense the oil-water interface within the tank. A pump and storage system is connected to the tube to alternately fill the tube with sea water and oil for calibration purposes.
Abstract:
A vessel has a source and detectors of radiation emplaced within containers extended through its walls so the level of a fluid within the vessel will be detected by interference of the fluid with the reception of the radiation by the detectors.
Abstract:
A heater having an oil or gas fired burner is shown, tubes are extended through the heater to conduct crude petroleum through the heating zone and lower the viscosity of the petroleum. Conduits connect the heater tubes to a section of transmission line arn are valved to blend the heated petroleum with the petroleum in the line, the resulting mixture being then transmitted a great distance.