Using Multiple In-Line Fluid Systems

A method of driving fluid flow in a fluid production system, the method comprising:

• arranging a plurality of in-line multiphase fluid systems each within a pipe of a plurality of the pipes at an offshore platform, wherein the plurality of in-line multiphase fluid systems comprise:
• a motor in a hermetically sealed housing and comprising a power cable extending from the motor through the sidewall of the pipe;
• a fluid end coupled to the motor and comprising a fluid end inlet and a fluid end outlet, the fluid end configured to drive fluid in the pipe from the inlet to the outlet;
• a seal carried by the fluid system downstream from the fluid end inlet and configured to seal a space between the fluid end and an inner wall of the pipe;
• and
• a magnetic coupling configured to couple the fluid end and the motor to enable the motor to drive the fluid end;
• and
• operating one or more of the in-line multiphase fluid systems to drive fluid through one or more of the pipes.