Otis Engineering Corporation

John B Wilkie, Jr

Carter R Young

Richard M Sproul

Frank Giusti, Jr

A packer is locked onto a service tool by separation shear pins during a run-in operation. The separation shear pins are decoupled with respect to run-in handling forces by a set of transfer support lugs. The transfer support lugs carry the weight of the packer and the hang weight of equipment supported by the packer so that no weight is applied to the shear pins during a run-in operation. The packer is set and its hang load is transferred to the separation shear pins after the packer is set by the application of hydraulic pressure against an annular piston carried on the service tool. The piston is locked during run-in by a group of transit shear pins. Movement of the annular piston shears the transit pins and unsupports a collet latch to permit retraction of the transfer support lugs and disengagement of the service tool mandrel from the packer. The service tool is then released from the packer by increasing hydraulic pressure or by pulling up on the work string, or both, and shearing the separation shear pins. Upon release, the service tool can be reciprocated freely within the packer bore for accommodating a gravel pack service operation.

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Houma, LA, United States of America

John B Wilkie, Jr