Subsea Operations Method Online Course Preview The typical operation of subsea production system can be summarized as follows: Oil, gas and water flow from wellbore to subsea tree, thence to jumper, manifold and flowline, before finally reaching a riser that pipes it to surface for processing. Pressurized reservoir fluid samples collected in an open hole wellbore may be analyzed at surface to characterize the physical properties of the fluids. An electrical submersible pump in a completed well p