Heat Exchanger Design INC

This is an off-shore application in the Gulf of Mexico. The shell side are connected two in parallel x 4 in series, while the tube sides are 8 in series.
In this application, (3) different streams of Natural Gas and Oil at different pressures and temperatures enter the tubeside, with cooling water on the shell side. The shell side design pressure is 400 psig, while the tube side is at 5,000 psig. Due to the high pressure, all tube side connections are made from machined forgings.
The size is (8) 20” diameter x 20 ft long and the heat load is 33,650,000 Btu/hr