Interventionless Packer Setting Tool
First Claim
1. A subterranean compression set packer setting assembly for a packer comprising a sealing element and at least one slip, comprising:
- a mandrel having a passage therethrough, said passage having a drift dimension, said mandrel comprising ends for attachment to a tubular string;
a setting sleeve on said mandrel and extending at least in part through at least one wall opening in said mandrel to present at least one movable support in said passage;
said setting sleeve movable with pressure applied to an object passing through said drift dimension and landed on said support in said passage to set said seal and slip.
1 Assignment
0 Petitions
Accused Products
Abstract
A packer setting mechanism has a series of fingers with tabs protruding into the mandrel bore. An object such as a plug is landed on the protruding tabs and pressure is applied. The fingers extend from a ring whose movement triggers the packer to set by driving out slips on cones and compressing a sealing element. When the packer set, tensile stress builds in the fingers and a reduced dimension location on the fingers just above the tabs pulls apart. The plug drives the fingers outwardly by pushing them along a ramp against an opposing spring force. The plug clears the tabs as the tabs are driven outwardly on respective ramps such that the tabs are precluded to enter the bore as the plug clears. The drift dimension in the mandrel is preserved when the plug clears.
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Citations
19 Claims
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1. A subterranean compression set packer setting assembly for a packer comprising a sealing element and at least one slip, comprising:
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a mandrel having a passage therethrough, said passage having a drift dimension, said mandrel comprising ends for attachment to a tubular string; a setting sleeve on said mandrel and extending at least in part through at least one wall opening in said mandrel to present at least one movable support in said passage; said setting sleeve movable with pressure applied to an object passing through said drift dimension and landed on said support in said passage to set said seal and slip. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification