Patent ID: 9217309
Filing Date: 2015-12-22
Classification: E21B

Abstract:
1. A hybrid-tieback seal assembly comprising: one or more anchoring bodies; one or more packer seal assemblies; one or more interventionless hydraulic setting systems coupled to one or more of the anchoring bodies and packer seal assemblies, the one or more interventionless hydraulic setting systems comprising: a bottom sub; a hydraulic tubing extending from the bottom sub; a communication port housing coupled to the bottom sub, the communication port housing having a charge port; a compensating volume, wherein the compensating volume is positioned in an annular space between the hydraulic tubing and the communication port housing; a floating piston located at one side of the compensating volume, wherein fluid flowing through the charge port applies pressure to the floating piston; a working volume separated from the compensating volume by one or more hydraulic control devices, wherein the one or more hydraulic control devices regulate fluid flow from the compensating volume to the working volume; a hydraulic piston coupled to the working volume, wherein the hydraulic piston is movable between a first position and a second position.