A resilient seal includes an annular body portion and a seating surface defined by the annular body portion and configured to interface with a seat of a subsurface safety valve. The resilient seal further includes a plurality of sealing surfaces defined by the annular body portion. Each sealing surface of the plurality of sealing surfaces is positioned to interface with a flapper of the subsurface safety valve in a closed position of the flapper of the subsurface safety valve. Additionally, the resilient seal includes at least one annular channel defined by the annular body portion between adjacent sealing surfaces of the plurality of sealing surfaces.

The frac plug system includes a setting mandrel, a sleeve member, a sealing member, a cone assembly, and a slip device. The setting mandrel includes a plurality of fluid bypass slots. The sleeve member includes a sleeve body with an abutment end. The setting mandrel has a first configuration without fluid flow through the frac plug system, and a second configuration with fluid flow through the frac plug system. The methods of the present invention include running the frac plug system in the first configuration and the sealing member in an extended position for a first setting stage, moving the setting mandrel to the second configuration with the sealing member in an expanded position, and then returning the setting mandrel to the first configuration for a second setting state. If the placement is wrong, the method includes removing the frac plug system in the first setting stage.

A gate valve for use in oil field applications and including a stem seal assembly and a seat seal assembly. Each of the stem and seat seal assemblies accommodate independent primary, secondary, and tertiary seals for sealing the space between the stem and the bonnet, or the seat ring and the valve body, respectively. The provision of multiple seals in each assembly provides redundancy that allows for maintenance of the seal between the components even if one or two of the individual seals fail.

A connection between a downhole tool string and axially extending coiled tubing 102 includes a compression ring 120 that in use grips the coiled tubing sufficiently to enable a slip ring to be set and provides a satisfactory seal with the coiled tubing 102. The compression ring 120 is preferably of a relatively malleable metal and includes a skirt 142 of reduced thickness to be preferentially compressible and which in use is compressed against the coiled tubing 102.

A downhole tool body includes an outer surface having at least one O-ring gland. The at least one O-ring gland includes a first contour having a first radius greater than about 0.035″ (R0.89 mm) and a second contour having a second radius greater than about 0.035″ (R0.89 mm). A backup ring is arranged in the O-ring gland. The backup ring includes a gland contour having a radius that is complimentary to the first radius.

A compact downhole tool, such as a frac plug, may include a single frustoconical member and a single set of slips. The slips may further include an internal button that engages with the frustoconical member. Various elements in the downhole tool may be dissolvable or degradable.

Methods and apparatus for positioning a non-expandable liner hanger in a wellbore. A liner is coupled to the liner hanger, wherein the liner hanger comprises: a conduit body; and a reactive metal sealing element disposed on the conduit body, wherein the reactive metal sealing element comprises a reactive metal having a first volume. An example method includes contacting the reactive metal 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 adjacent to the reactive metal sealing element with the reaction product to form a seal against the surface and to anchor the liner hanger from the surface, wherein anchoring the liner hanger to the surface suspends the liner in the wellbore.

Method of manufacturing a wellbore downhole tool, including providing a pre-polymer resin and processing the pre-polymer resin. Processing the pre-polymer resin includes applying directed energy from a directed energy source such that the pre-polymer resin is at least partially polymerized to form a polymer seal of the wellbore downhole tool, the polymer seal having one of more mechanical properties that differ along one or more dimensions of the polymer seal. A downhole tool for use in a wellbore, the downhole tool including a polymer seal. The polymer seal is a continuous single monolithic piece, includes polymer structures having a polymer chain including same types of monomers that are bonded together, and the polymer structures are altered along one or more dimensions of the polymer seal and one of more mechanical properties of the polymer seal differ along a same corresponding one of the or more dimensions of the polymer seal.

Embodiments described herein provide a multi-diameter thrust device that includes one or more thrust cups. Each thrust cup of the one or more thrust cups includes a first axial end hub disposed at a first axial end of the thrust cup; a second axial end hub disposed at a second axial end of the thrust cup; and a plurality of bowsprings. Each bowspring of the plurality of bowsprings includes a first axial end portion coupled to the first axial end hub and a second axial end portion coupled to the second axial end hub. The plurality of bowsprings are disposed circumferentially about a central axis of the multi-diameter thrust device.

A method for permanently sealing or bridging perforations disposed in a wellbore that was previously subjected to various completion operations and comprises a plurality of perforated sections comprising a plurality of perforations. In one embodiment, the method comprises configuring a ball injector or multiple ball injectors at the surface of the wellbore, pumping non-degradable perforation ball sealers into the perforated sections via the ball injector, wherein the non-degradable perforation ball sealers permanently seal all perforated sections in the wellbore, and monitoring pressure within the wellbore during operation to determine a successful seal of all the perforated sections.