Horizontal wellbore separation systems and methods

A flow management and separation system for a wellbore having a horizontal section, vertical section and intermediate build section, a production tubing and a primary artificial lift device having an intake and an outlet into the production tubing, the system comprising:

• (a) an intake and a central flow passage, to receive produced fluids from the reservoir;
• (b) a distal wavebreaker presenting a narrowed annular cross-section, through which the central flow passage passes, and a fluidseeker comprising an axially rotatable inlet extension having a weighted keel inlet in fluid communication with a flow recovery tube, and an internal bypass passage in fluid communication with the central flow passage;
• and
• (c) a first slug catcher assembly comprising a perforated shell disposed around the flow recovery tube and connected to the fluidseeker bypass passage, having a perforation configuration, length and volume configured to capture a slug volume and slow its advance;
• and
• (d) a sealing sub comprising an internal seal bore extension and a seal bore entry guide, configured to receive a bottom end of a pump intake dip tube, wherein the seal bore extension is connected to the flow recovery tube, the sealing sub defining a bypass passage connected to the first slug catcher;
• (e) a second slug catcher comprising a perforated shell disposed around the dip tube and connected at its distal end to the sealing sub bypass;
• and
• (f) a pump seating nipple disposed proximally to the second slug catcher, and configured to receive a pump.