Frac Plug with Retention Mechanism
AssigneePetroQuip Energy Services, LLC
InventorsRoddie R. Smith, Robert Joe Coon
Life of this patent
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Abstract
A frac plug is provided. The frac plug includes a plug body, a sealing element, and a slip. The plug body includes a first sub and a second sub. The first sub includes a first composite material outer sleeve, and a first metal inner core engaged with and structurally supporting the first composite material outer sleeve. The second sub includes a second composite material outer sleeve, and a second metal inner core engaged with and structurally supporting the second composite material outer sleeve. The sealing element is circumferentially disposed about the first sub and, when actuated, seals an annulus between the frac plug and a tubular section. The slip is disposed between the first sub and the second sub and, when actuated, engages the tubular section.
Claims22
A frac plug, comprising:
- a plug body, comprising:
- a first sub, comprising:
- a first composite material outer sleeve, and
- a first metal inner core engaged with and structurally supporting the first composite material outer sleeve, and
- a second sub, comprising:
- a second composite material outer sleeve, and
- a second metal inner core engaged with and structurally supporting the second composite material outer sleeve;
- a sealing element circumferentially disposed about the first sub that, when actuated, seals an annulus between the frac plug and a tubular section;
- and
- a slip disposed between the first sub and the second sub that, when actuated, engages the tubular section.
A frac plug, comprising:
- a plug body, comprising:
- a first sub, and
- a second sub;
- a sealing element circumferentially disposed about the first sub that, when actuated, seals an annulus between the frac plug and a tubular section;
- and
- a slip disposed between the first sub and the second sub that, when actuated, engages the tubular section;
- wherein at least one of the first sub and the second sub are at least partially comprised of a composite material.
A method of assembling a frac plug, comprising:
- assembling a first sub by engaging a first metal core with a first composite outer sleeve by bonding, adhering, a threaded connection, or some combination thereof;
- assembling a second sub by engaging a second metal core with a second composite outer sleeve by bonding, adhering, a threaded connection, or some combination thereof;
- circumferentially disposing a slip about a tapered portion of the first sub;
- and
- engaging the first sub with the second sub directly or via a lock ring such that the slip is positioned between the first sub and the second sub.
A frac plug, comprising:
- a plug body, comprising:
- a composite material outer sleeve, and
- a metal inner core engaged with and structurally supporting the composite material outer sleeve;
- a sealing element circumferentially disposed about the plug body that, when actuated, seals an annulus between the frac plug and a tubular section;
- and
- a slip circumferentially disposed about the plug body that, when actuated, engages the tubular section.
Dependencies are inferred from the claim text.