Frac plug apparatus, setting tool, and method
First Claim
1. A frac plug apparatus for a downhole, comprising:
- an inner cone shaped member having a first end and a second end, the inner cone shaped member having a generally increasing outer diameter from the first end; and
an expandable outer sleeve having a first end and a second end, the first end of the expandable outer sleeve adapted to receive the first end of the inner cone shaped member and the second end of the expandable outer sleeve having a plurality of fingers joined at their tips at predetermined break points;
wherein, upon receiving the first end of the inner cone shaped member further into the expandable outer sleeve, the fingers of the expandable outer sleeve are adapted to break at their tips at their predetermined break points and expand outwardly to engage a surface of the downhole.
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Accused Products
Abstract
An improved frac plug apparatus and method for setting a plug in a downhole. In an embodiment, the apparatus comprises an inner cone shaped member having a first end and a second end, the inner cone shaped member having a generally increasing outer diameter from the first end, and an expandable outer sleeve having a first end and a second end, the first end of the expandable outer sleeve adapted to receive the first end of the inner cone shaped member and the second end of the expandable outer sleeve having a plurality of fingers joined at their tips at predetermined break points. In use, upon receiving the first end of the inner cone shaped member further into the expandable outer sleeve, the fingers of the expandable outer sleeve are adapted to break at their tips at their predetermined break points and expand outwardly to engage a surface of the downhole.
3 Citations
21 Claims
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1. A frac plug apparatus for a downhole, comprising:
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an inner cone shaped member having a first end and a second end, the inner cone shaped member having a generally increasing outer diameter from the first end; and an expandable outer sleeve having a first end and a second end, the first end of the expandable outer sleeve adapted to receive the first end of the inner cone shaped member and the second end of the expandable outer sleeve having a plurality of fingers joined at their tips at predetermined break points; wherein, upon receiving the first end of the inner cone shaped member further into the expandable outer sleeve, the fingers of the expandable outer sleeve are adapted to break at their tips at their predetermined break points and expand outwardly to engage a surface of the downhole. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A setting tool for setting a frac plug apparatus the setting tool comprising:
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a generally elongate mandrel; an outer ring cage slidably engaged on the mandrel, the outer ring cage adapted to position a plurality of setting tabs in a circular arrangement to engage a frac plug loaded onto the setting tool; a setting sleeve for engaging an opposite end of the frac plug loaded onto the setting tool; and an adapter for retaining the setting sleeve on the setting tool for a downhole run. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A method of setting a frac plug apparatus in a downhole using a setting tool, comprising:
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loading a frac plug apparatus onto a setting tool, the frac plug apparatus comprising; an inner cone shaped member having a first end and a second end, the inner cone shaped member having a generally increasing outer diameter from the first end; and an expandable outer sleeve having a first end and a second end, the first end of the expandable outer sleeve adapted to receive the first end of the inner cone shaped member and the second end of the expandable outer sleeve having a plurality of fingers joined at their tips at predetermined break points; running the setting tool loaded with the frac plug apparatus into the downhole; at a desired location, pushing the inner cone shaped member into the expandable outer sleeve until the fingers of the expandable outer sleeve break at their tips at their predetermined break points and expand outwardly to engage walls of the downhole; and
withdrawing the setting tool through the set frac plug.
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Specification