Downhole tool with one-piece slip

  • US 9,719,320 B2
  • Filed: 12/17/2016
  • Issued: 08/01/2017
  • Est. Priority Date: 08/22/2011
  • Status: Active Grant
First Claim
Patent Images

1. A downhole tool for use in a wellbore, the downhole tool comprising:

  • a mandrel made of a composite material, the mandrel further comprising;

    a distal end;

    a proximate end; and

    an outer surface,wherein the mandrel comprises a first outer diameter at the distal end, a second outer diameter at the proximate end, and an angled linear transition surface therebetween, and wherein the second outer diameter is larger than the first outer diameter;

    a bearing plate disposed around the mandrel, the bearing plate comprising an angled inner plate surface configured for engagement with the angled linear transition surface;

    a first slip disposed around the mandrel proximate to the distal end;

    a composite slip disposed around the mandrel proximate to the proximate end, the composite slip further comprising;

    a composite slip body having a one-piece configuration, an outer slip surface, an inner slip surface, and a plurality of grooves disposed therein,wherein at least one of the plurality of grooves forms a lateral opening in the composite slip body that is defined by a first portion of slip material at a first slip end, a second portion of slip material at a second slip end, and a depth that extends from the outer slip surface to the inner slip surface;

    a first cone disposed around the mandrel, and proximate to the composite slip;

    a sealing element disposed around the mandrel; and

    a lower sleeve coupled to the mandrel, and proximate to a second side of the first slip.

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