Hybrid-tieback seal assembly using method and system for interventionless hydraulic setting of equipment when performing subterranean operations

摘要

Hybrid-tieback seal assemblies, interventionless setting assemblies, and associated methods of setting downhole components of the hybrid-tieback seal assemblies using such interventionless setting assemblies are disclosed. A hybrid-tieback seal assembly comprises one or more anchoring bodies, one or more packer seal assemblies, and one or more interventionless hydraulic setting systems. A method of setting downhole equipment comprises applying a pressure to a compensating volume and providing a working volume, wherein the working volume is separated from the compensating volume by one or more hydraulic control devices. A pressure is applied to the working volume in response to the pressure applied to the compensating volume. The pressure applied to the compensating volume is then reduced and the pressure applied to the working volume is captured by the hydraulic control devices. The captured pressure in the working volume is applied to set one or more of the anchoring bodies and packer seal assemblies.

主权项

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;
wherein application of a pressure to the compensating volume applies a pressure to the working volume;wherein releasing the pressure applied to the compensating volume creates a differential pressure across the one or more hydraulic control devices;wherein in response to the creation of the differential pressure the one or more hydraulic control devices substantially seal the working volume from the compensating volume;wherein the working volume captures the pressure applied to the working volume when the pressure applied to the compensating volume is released; and a hydraulic piston coupled to the working volume, wherein the hydraulic piston is movable between a first position and a second position.