The ESP solotted gravity screen combines the sand blocking capabilities of a slotted screen with the solids separation process used in hydrocyclone sand separators. The result is a sand control solution that prevents particles 100 microns and larger in size from entering and damaging the electrical submersible pumping (ESP) system.
The gravity filter stabilizes ESP operation in wells with high levels of sand and proppant. It is mounted between the pump and protector and serves as an intake for the ESP.
Size (RU) |
Outer Diameter |
Operating capacity |
Filtration rating |
Solids content |
Length |
5А |
4,49 in |
502-4396 bbl/d |
70-100 mcm |
up to 1050 ptb |
30 ft |
114 mm |
80-700 m3/d |
up to 3000 mg/l |
9 m |
Our slotted gravity screen combines a slotted screen filter on the outside with a hydrocyclone sand separator on the inside. The screen filters particles while the separator uses centrifugal force to push particles outward. Depending on the configuration used, gravity then pulls the particles down into a sediment chamber or through a liner into a sump well.
Sand control is provided primarily with the slotted screen. Competing slotted screen designs use a safety valve that opens when the filter becomes plugged with sediment or scale. This enables the ESP to continue operating, but allows sand to pass freely through the system where it damages internal components and will eventually cause failure. Instead of a safety valve, our slotted gravity screen uses the sand separator. Separating the sand instead of just letting it pass through the system prevents particles from damaging the ESP and extends runlife.