The following operating and installation parameters are recommended when designing a cyclonic jetting unit for your vessel. Note: these design parameters are specific to the eProcess Technologies eJECT™ technology only and may vary for other suppliers.

Total Affected Area Indicates Amount of Sand Removed

• Affected area: top area of the influenced ellipse
• affected diameter: mean value of major and minor ellipse axes (ref. post B-FSM-124).

Installation Guidelines:

• Spacing: 1.0 meter center-center on eJECT heads
• Set height (clearance below head): 4” (100 mm)
• Spray flow/pressure: 11 psid (0.75 bar) / 33 gpm (7.5 m³/hr)
• Slurry flow/pressure: 7 psid (0.5 bar) / 33 gpm (7.5 m³/hr)
• Sand depth: The unit can be fully covered
• Installation angle: Vertical (single row), 15° (double row)
• Spray source: any compatible water, must remove particles >1.0 mm

Next week I will discuss the cyclonic jetting cluster layout and control system design.

References:

1. Rawlins, C.H., “Design of a Cyclonic Solids Jetting Device and Slurry Transport System for Production Systems”, paper 166118, presented at the SPE Annual Technical Conference and Exhibition, New Orleans, LA, 30 September – 2 October, 2013. https://doi.org/10.2118/166118-MS