Abstract: Provided are apparatus, systems, and methods for generating a non-plugging hydrate slurry. The apparatus, systems, and methods for generating a hydrate slurry are useful for transport and/or production of wellstream hydrocarbons in subsea and arctic environments. The present invention provides methods of seeded or unseeded methods of making dry hydrates. Dry hydrates are made with or without the aid of chemicals and, preferably, with minimum use of rotating or other energized equipment.

Abstract: Provided are piggable static mixers, apparatus for generating a non-plugging hydrate slurry, systems incorporating the same, and methods of using the same. Piggable static mixers include an inlet orifice, an outlet orifice in fluid communication with the inlet orifice, and a mechanism fluidly coupled between the inlet and outlet orifices. The mechanism is configurable between a first state and a second state. Fluid flow between the inlet and outlet orifices is substantially unimpeded when the mechanism is in the first state. A static mixer element impinges upon the fluid flow when the mechanism is in the second state. The system further includes a production facility and a production line. The system and methods provided are useful for production of wellstream hydrocarbons from subsea and arctic environments.