Downhole Fluid Communication Apparatus and Method
First Claim
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1. A probe for establishing fluid communication between a downhole tool and a subterranean formation, the downhole tool positioned in a wellbore penetrating the subterranean formation, comprising:
- a platform operatively connected to the downhole tool;
at least one packer operatively connected to the platform, the packer having at least one hole extending therethrough;
at least one embedded member disposed in the packer for enhancing the operation of the packer as it is pressed against the wellbore wall whereby the packer forms a seal with the wellbore wall.
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Abstract
A probe for establishing fluid communication between a downhole tool and a subterranean formation is provided. The downhole tool is positioned in a wellbore penetrating the subterranean formation. The probe includes a platform operatively connected to the downhole tool, at least one packer operatively connected to the platform, the packer having at least one hole extending therethrough and at least one embedded member disposed in the packer for enhancing the operation of the packer as it is pressed against the wellbore wall.
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Citations
32 Claims
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1. A probe for establishing fluid communication between a downhole tool and a subterranean formation, the downhole tool positioned in a wellbore penetrating the subterranean formation, comprising:
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a platform operatively connected to the downhole tool;
at least one packer operatively connected to the platform, the packer having at least one hole extending therethrough;
at least one embedded member disposed in the packer for enhancing the operation of the packer as it is pressed against the wellbore wall whereby the packer forms a seal with the wellbore wall. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A probe for establishing fluid communication between a downhole tool and a subterranean formation, the downhole tool positioned in a wellbore penetrating the subterranean formation, comprising:
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a base operatively connected to the downhole tool;
at least one packer operatively connected to the base, the packer having at least one hole extending therethrough;
a first rigid portion fixedly attached to the packer; and
a second rigid portion slidably engaged with the first rigid portion to permit movement of at least a portion of the packer relative to the second rigid portion as the packer is pressed against a wellbore wall. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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15. A packer for establishing fluid communication between a downhole tool and a subterranean formation, the downhole tool positioned in a wellbore penetrating the subterranean formation, comprising:
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a central axis, wherein the central axis of the packer is substantially perpendicular to a vertical axis of the wellbore;
an outer surface adapted to engage a borehole wall, the outer surface having a first radius an a first center point;
an inner surface disposed a first distance apart from the outer surface and being adapted to engage a base, the inner surface having a second radius and a second center point, wherein the first and second center points are on the central axis such that a second distance between the two center points is between zero and the first distance; and
wherein the second radius is substantially equal to the sum of the first radius and the second distance minus the first distance. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. A packer for establishing fluid communication between a downhole tool and a subterranean formation, the downhole tool positioned in a wellbore penetrating the subterranean formation, comprising:
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a central axis substantially perpendicular to a vertical axis of the wellbore;
a base operatively connected to the downhole tool and to the packer, the packer having at least one hole extending therethrough;
an outer surface adapted to engage a borehole wall, the outer surface having a first radius about the vertical axis of the packer, wherein the first radius is smaller than a radius of the wellbore. - View Dependent Claims (23, 24, 25)
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26. A method of establishing fluid communication between a downhole tool and a subterranean formation, the downhole tool positioned in a wellbore penetrating the subterranean formation, comprising:
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providing a packer having a contact surface adapted to engage a borehole wall and an inner surface;
abutting the contact surface of the packer against a borehole wall;
applying a force against the inner surface of the packer, thereby pressing the packer against the borehole wall; and
creating a substantially homogenous pressure between the borehole wall and the contact surface. - View Dependent Claims (27, 28, 29, 30)
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31. A probe for establishing fluid communication between a downhole tool and a subterranean formation, the downhole tool positioned in a wellbore penetrating the subterranean formation, comprising:
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a base operatively connected to the downhole tool;
at least one packer having an inner portion and an outer portion operatively connected to the base, the packer having at least one hole extending therethrough;
at least one support structure disposed along a portion of the packer, the structure having a first end disposed between the base and an outer surface of the packer, wherein the end includes a curved portion extending away from the portion of the packer. - View Dependent Claims (32)
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Specification