Abstract: A technique facilitates actuation of a packer to a sealing and gripping position along a borehole. The packer includes a packer element structure mounted about a center structure. The packer element structure includes a sealing element mounted along an expandable base such that the sealing element may be radially expanded. Additionally, the packer includes an actuator member connected to a portion of the packer element structure via a release mechanism, e.g. a shear member. A plurality of slips may be located on the actuator member such that linear movement of the actuator member causes successive movement of the packer sealing element and then the slips in the radially outward direction. The packer may be constructed such that this sequential setting motion creates a jarring effect to ensure the slips securely bite into the surrounding wellbore surface, e.g. casing surface.

Abstract: A technique facilitates use of a liner hanger in a borehole. A port free hydraulic unibody system including an outer structure having a tubing hanger portion and a packer portion mounted about a mandrel may be constructed so as to avoid the creation of leak paths. A seal system may be employed between the mandrel and the surrounding outer structure to ensure sealing engagement therebetween. The mandrel has a port free section on the downhole side of the seal system, and this port free section is maintained during, for example, actuation of the tubing hanger portion so as to prevent formation of leak paths. An actuator may be located along the mandrel and may be configured to initiate actuation of hanger slips mounted along the tubing hanger portion. An anti-preset mechanism positioned along the mandrel works in cooperation with the actuator to prevent premature actuation of the hanger slips.

Abstract: A technique facilitates actuation of a packer to a sealing and gripping position along a borehole. The packer includes a packer element structure mounted about a center structure. The packer element structure includes a sealing element mounted along an expandable base such that the sealing element may be radially expanded. Additionally, the packer includes an actuator member connected to a portion of the packer element structure via a release mechanism, e.g. a shear member. A plurality of slips may be located on the actuator member such that linear movement of the actuator member causes successive movement of the packer sealing element and then the slips in the radially outward direction. The packer may be constructed such that this sequential setting motion creates a jarring effect to ensure the slips securely bite into the surrounding wellbore surface, e.g. casing surface.

Abstract: A technique facilitates use of a liner hanger in a borehole. A port free hydraulic unibody system including an outer structure having a tubing hanger portion and a packer portion mounted about a mandrel may be constructed so as to avoid the creation of leak paths. A seal system may be employed between the mandrel and the surrounding outer structure to ensure sealing engagement therebetween. The mandrel has a port free section on the downhole side of the seal system, and this port free section is maintained during, for example, actuation of the tubing hanger portion so as to prevent formation of leak paths. An actuator may be located along the mandrel and may be configured to initiate actuation of hanger slips mounted along the tubing hanger portion. An anti-preset mechanism positioned along the mandrel works in cooperation with the actuator to prevent premature actuation of the hanger slips.

Abstract: A technique facilitates performance of a gravel packing operation and desired zonal isolation. An apparatus, e.g. a sliding sleeve shunt tube isolation valve, may be deployed downhole and configured to facilitate a gravel packing operation and zonal isolation. By way of example, the apparatus contains a conduit which in an open position allows the flow of gravel pack slurry and in a closed position creates a barrier. In the closed position, upper and lower portions of the conduit are isolated from one another. When the apparatus is coupled with a packer and sand screens, the apparatus serves to create complete zonal isolation in, for example, an open hole alternate path system.

Abstract: A technique facilitates performance of a gravel packing operation and desired zonal isolation. An apparatus, e.g. a sliding sleeve shunt tube isolation valve, may be deployed downhole and configured to facilitate a gravel packing operation and zonal isolation. By way of example, the apparatus contains a conduit which in an open position allows the flow of gravel pack slurry and in a closed position creates a barrier. In the closed position, upper and lower portions of the conduit are isolated from one another. When the apparatus is coupled with a packer and sand screens, the apparatus serves to create complete zonal isolation in, for example, an open hole alternate path system.