Patent ID: 9611952
Date: 2017-04-04
CPC Classifications: E21B,F16K

Claim:
1. A choke with reduced cavitation and/or flashing due to high pressure fluids passing through the choke, comprising: a housing having a high pressure inlet port and a low pressure outlet port; one or more cages positioned within the housing and having one or more inlet ports to receive fluid into the cages and one or more outlet ports to allow fluid to exit the cages, wherein one of the cages comprises a bead cage; an actuator; a flow controller coupled to the actuator and configured to at least partially block the inlet ports into at least one of the cages; and a plurality of beads positioned within the bead cage, such that fluid flows between the bead cage and the plurality of beads and between the beads when passing through the bead cage, and fluid pressure is reduced while fluid passes through the bead cage, wherein the one or more outlet ports of the bead cage are formed in a lid removable secured to the bead cage, and wherein at least a portion of a length of the bead cage inner diameter is threaded and the lid is formed with mating threads.