Importance

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Abstract

A sand trap for oil and gas extraction includes a cyclonic flow section having a longitudinal axis, an inlet for receiving a high-pressure fluid stream with particulates, an upper portion, a choke area, and a funnel portion narrowing from the upper portion to the choke area. The inlet has an axis generally perpendicular but askew to the longitudinal axis. A vortex finder extends downwardly from a cap and defines a passageway coaxial with the longitudinal axis for fluid to exit. A spherical accumulator extends downwardly from the cyclonic flow section and has a center axis coaxial with the longitudinal axis. Upper and lower ends of the spherical accumulator each have an opening centered along the longitudinal axis, and the spherical accumulator is unobstructed from the upper opening to the lower opening for the particulates to pass unimpeded and accumulate in the accumulator.

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First Claim