Hydraulic fracturing equipment with non-hydraulic power

  • US 10,280,724 B2
  • Filed: 07/07/2017
  • Issued: 05/07/2019
  • Est. Priority Date: 07/07/2017
  • Status: Active Grant
First Claim
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1. A hydraulic fracturing system for fracturing a subterranean formation comprising:

  • an electric pump fluidly connected to a well associated with the subterranean formation, and configured to pump fluid into a wellbore associated with the well at a high pressure so that the fluid passes from the wellbore into the subterranean formation and fractures the subterranean formation;

    one or more ancillary units associated with the fluid pumped into the wellbore, the one or more ancillary units comprising a blender, the blender being positioned on a trailer and fluidly connected to an auger, wherein one or more second motors are positioned any of proximate a top elevation of the auger or proximate a bottom elevation of the auger, or a combination thereof, such that the one or more second motors provide power to drive the auger;

    a first motor electrically coupled to the electric pump to operate the electric pump;

    the one or more second motors comprising one or more electric motors, each of the one or more second motors electrically coupled to at least one of the one or more ancillary units to operate the at least one of the one or more ancillary units; and

    a plurality of variable-frequency drives (VFD), each VFD connected to at least one of the first motor or the one or more second motors to control the speed of the first motor or the one or more second motors.

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