Abstract: Methods and systems for cementing in a wellbore. An example method includes introducing a conduit into a wellbore. The conduit comprises a reactive metal element disposed on an exterior of the conduit. The reactive metal element comprises a reactive metal having a first volume. The method further includes circulating a cement over the exterior of the conduit and the reactive metal element, contacting the reactive metal element with a fluid that reacts with the reactive metal to produce a reaction product having a second volume greater than the first volume, and contacting a surface of the cement adjacent to the reactive metal element with the reaction product.

Abstract: Methods and systems for cementing in a wellbore. An example method includes introducing a conduit into a wellbore. The conduit comprises a reactive metal element disposed on an exterior of the conduit. The reactive metal element comprises a reactive metal having a first volume. The method further includes circulating a cement over the exterior of the conduit and the reactive metal element, contacting the reactive metal element with a fluid that reacts with the reactive metal to produce a reaction product having a second volume greater than the first volume, and contacting a surface of the cement adjacent to the reactive metal element with the reaction product.

Abstract: A fracturing/gravel packing tool with variable direction and exposure exit ports. A system for delivering an erosive flow into a subterranean well includes a port displacing in the well while the erosive flow passes through the port. Various displacement devices may be used in the system to displace the port.

Abstract: An apparatus (100) for actuating a hydraulically controllable device (102) disposed in a wellbore is disclosed. The apparatus (100) comprises a downhole hydraulic fluid source (134), a hydraulic fluid passageway (136) providing a communication path between the downhole hydraulic fluid source (134) and the hydraulically controllable device (102), a valve (144) disposed within the hydraulic fluid passageway (136) and a downhole electronics package (138). The downhole electronics package (138) receives a signal from the surface to operate the valve (144) from the closed position to the open position such that hydraulic pressure from the downhole hydraulic fluid source (134) actuates the hydraulically controllable device (102).

Abstract: An apparatus (100) for actuating a hydraulically controllable device (102) disposed in a wellbore is disclosed. The apparatus (100) comprises a downhole hydraulic fluid source (134), a hydraulic fluid passageway (136) providing a communication path between the downhole hydraulic fluid source (134) and the hydraulically controllable device (102), a valve (144) disposed within the hydraulic fluid passageway (136) and a downhole electronics package (138). The downhole electronics package (138) receives a signal from the surface to operate the valve (144) from the closed position to the open position such that hydraulic pressure from the downhole hydraulic fluid source (134) actuates the hydraulically controllable device (102).

Abstract: A packer for use in subterranean wellbores provides efficient utilization of its cross-sectional area with mechanisms therein for anchoring, sealing, and torquing through the packer. In a preferred embodiment, a retrievable packer has a tubular mandrel, rubbers disposed on the mandrel, upper and lower compression members axially straddling the rubbers, a barrel-type casing slip, upper and lower wedges axially straddling the casing slip, a release mechanism, and a series of threaded load-distributing components which help to prevent collapse of the mandrel.

Abstract: A packer for use in subterranean wellbores provides efficient utilization of its cross-sectional area with mechanisms therein for anchoring, sealing, and torquing through the packer. In a preferred embodiment, a retrievable packer has a tubular mandrel, rubbers disposed on the mandrel, upper and lower compression members axially straddling the rubbers, a barrel-type casing slip, upper and lower wedges axially straddling the casing slip, a release mechanism, and a series of threaded load-distributing components which help to prevent collapse of the mandrel.

Abstract: A backup shoe for a well packer provides high pressure sealing capability without requiring a large setting force or setting stroke of the packer. In a preferred embodiment, a backup shoe has an inner portion with a relatively thin cross-section and an outer portion with a relatively thick cross-section. Additionally, the inner portion has a pivot point between its ends. In a preferred embodiment of a packer utilizing the backup shoe, an element retainer axially contacts the inner portion adjacent its pivot point, and a seal element axially contacts an inner sloping surface formed on the outer portion.