High expansion packer
First Claim
1. A sealing apparatus for engaging a tubular, comprising:
- a body;
a sealing system disposed about the body;
one or more extrusion rings disposed at each end of the sealing system, wherein the one or more extrusion rings include a plurality of slots;
a cone for supporting the one or more extrusion rings; and
a slip member disposed adjacent to the cone at each end of the sealing system, whereby actuating the sealing apparatus expands the sealing system and causes the slip members to fold outward and engage the tubular.
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Accused Products
Abstract
The present invention generally relates to a method and apparatus for sealing a tubular. In one aspect, the apparatus is sealing apparatus for a downhole tool such as a bridge plug, packer, or frac-plug. In one embodiment, the present invention provides for a sealing apparatus having a body and a sealing system disposed about the body. The sealing apparatus further includes one or more extrusion rings disposed at each end of the sealing system. The sealing apparatus may also have a first cone to support the one or more extrusion rings and a second cone expandable over the first cone. A slip member is disposed adjacent the second cone at each end of the sealing system. Upon actuation, the sealing apparatus expands the sealing system and causes the slip member to fold outward and engage the tubular. The sealing apparatus is functionally expandable to at least 25% diametrically to seal the tubular.
174 Citations
41 Claims
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1. A sealing apparatus for engaging a tubular, comprising:
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a body;
a sealing system disposed about the body;
one or more extrusion rings disposed at each end of the sealing system, wherein the one or more extrusion rings include a plurality of slots;
a cone for supporting the one or more extrusion rings; and
a slip member disposed adjacent to the cone at each end of the sealing system, whereby actuating the sealing apparatus expands the sealing system and causes the slip members to fold outward and engage the tubular. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A sealing apparatus for engaging a tubular, comprising:
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a body;
a sealing system disposed about the body;
one or more extrusion rings disposed at each end of the sealing system;
a first cone for supporting the one or more extrusion rings;
a second cone expandable over the first cone; and
a slip member disposed adjacent to the cone at each end of the sealing system, whereby actuating the sealing apparatus expands the sealing system and causes the slip members to fold outward and engage the tubular. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A method of sealing a tubular, comprising:
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running a tool into the tubular, the tool comprising;
a body;
a sealing system disposed about the body;
a slotted extrusion ring disposed adjacent each end of the sealing system;
a cone disposed adjacent each slotted extrusion ring; and
a slip member disposed adjacent each cone;
applying a force to the slip member at one end of the tool;
expanding the sealing system into contact with an area of the tubular;
causing the slotted extrusion ring to fold outward and plastically deform; and
causing the slip member to engage the tubular, wherein the sealing member, extrusion ring, and the slip member are set in a predetermined sequence. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 41)
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35. A slip and cone assembly functionally expandable to at least 25% diametrically.
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36. A sealing apparatus for engaging a tubular, comprising:
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a body;
a sealing system disposed about the body;
one or more extrusion rings disposed at each end of the sealing system;
a cone for supporting the one or more extrusion rings;
a slip member disposed adjacent to the cone at each end of the sealing system, whereby actuating the sealing apparatus expands the sealing system and causes the slip members to fold outward and engage the tubular. a backup ring disposed between the one or more extrusion rings and the cone; and
an expansion member disposed between the cone and the slip member, wherein the expansion member is connected to the cone using a first shearable member and the slip member is connected to the expansion member using a second shearable member. - View Dependent Claims (37)
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38. A sealing apparatus for engaging a tubular, comprising:
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a body;
a sealing system disposed about the body;
one or more extrusion rings disposed at each end of the sealing system;
a cone for supporting the one or more extrusion rings; and
a first slip member disposed adjacent to the cone at one end of the sealing system and a second slip disposed adjacent to another cone at the other end thereof, the first slip member is substantially fixed against the body and the second slip member is movable relative to the body, whereby actuating the sealing apparatus expands the sealing system and causes the slip members to fold outward and engage the tubular. - View Dependent Claims (39)
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40. A method of sealing a tubular, comprising:
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running a tool into the tubular, the tool comprising;
a body;
a sealing system disposed about the body;
an extrusion ring disposed adjacent each end of the sealing system;
a cone disposed adjacent each extrusion ring; and
a slip member disposed adjacent each cone;
applying a force to the slip member at one end of the tool;
expanding the sealing system into contact with an area of the tubular, wherein the expanded sealing system provides a bi-directional, self-energizing cup type seal system;
causing the extrusion ring to fold outward and plastically deform; and
causing the slip member to engage the tubular, wherein the sealing member, extrusion ring, and the slip member are set in a predetermined sequence.
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Specification