Probe Packer Including Rigid Intermediate Containment Ring
AssigneeSchlumberger Technology Corporation
InventorWilliam E. Brennan, III
Life of this patent
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Abstract
A downhole tool for a wellbore within a geological formation may include a housing to be lowered into the wellbore, a probe carried by the housing having a first opening therein, and a packer carried by the probe. The packer may include a rigid base having a second opening therein aligned with the first opening, an inner elastomeric ring carried by the rigid base and having a third opening aligned with the second opening, a rigid intermediate containment ring carried by the rigid base and surrounding the inner elastomeric ring, and an outer elastomeric ring carried by the rigid base and surrounding the rigid intermediate containment ring.
Claims20
A downhole tool for a wellbore within a geological formation comprising:
- a housing to be lowered into the wellbore;
- a probe carried by said housing having a first opening therein;
- and
- a packer carried by said probe and comprising
- a rigid base having a second opening therein aligned with the first opening,
- an inner elastomeric ring carried by said rigid base and having a third opening aligned with the second opening,
- a rigid intermediate containment ring carried by said rigid base and surrounding said inner elastomeric ring, and
- an outer elastomeric ring carried by said rigid base and surrounding said rigid intermediate containment ring.
A packer to be carried by a probe on a downhole tool for use within a wellbore in a geological formation, the probe having a first opening therein, and the packer comprising:
- a rigid base having an second opening therein aligned with the first opening;
- an inner elastomeric ring carried by said rigid base and having a third opening therein aligned with the second opening;
- a rigid intermediate containment ring carried by said rigid base and surrounding said inner elastomeric ring;
- and
- an outer elastomeric ring carried by said rigid base and surrounding said rigid intermediate containment ring.
A method for making a packer to be carried by a probe on a downhole tool for use within a wellbore in a geological formation, the probe having a first opening therein, the method comprising:
- forming a rigid base having a second opening therein with a rigid intermediate containment ring carried by the rigid base surrounding the opening, the second opening to be aligned with the first opening;
- forming an inner elastomeric ring having a third opening therein to be aligned with the second opening when the inner elastomeric ring is within the rigid intermediate containment ring;
- and
- forming an outer elastomeric ring on the rigid base and surrounding the rigid intermediate containment ring.
Dependencies are inferred from the claim text.