Proppant storage vessel and assembly thereof

  • US 9,296,518 B2
  • Filed: 07/24/2013
  • Issued: 03/29/2016
  • Est. Priority Date: 12/21/2011
  • Status: Active Grant
First Claim
Patent Images

1. A proppant storage system for use with hydraulic fracturing operations, the system comprising:

  • a container comprising;

    a cavity;

    sidewalls that define a lateral periphery of the cavity;

    a plurality of support braces affixed to the sidewalls and which define structural support for the sidewalls;

    inclined surfaces that define a lower periphery of the cavity, and that depend axially away and extends inwardly from the sidewalls with lateral distance from the sidewalls to define an inclined lower periphery surface;

    a bottom;

    support members that extend between the bottom and inclined surfaces;

    a hatch positioned closely adjacent to the bottom and selectively moveable to an open configuration so that when proppant is positioned in the cavity and comprises particles that have a substantially spherical shape and a tightly graded particle distribution, the proppant readily slides down the inclined surface to the open configuration of the hatch and from within the cavity to a location outside of the cavity and moveable to a closed configuration of the hatch with the hatch aligned with lower ends of the inclined surfaces thereby to block a flow of the proppant from within the cavity, the hatch circumscribed by the sidewalls when the hatch is in the open configuration; and

    an opening to the cavity that registers with the hatch.

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