Sealing/Packing TRIZ Cases

Segmented barrel and yoke components allow direct rod access for torque generation, eliminating costly milling interventions for stuck back-pressure valves.

A cement retainer housing a wellbore milling tool enables simultaneous cementing and milling operations in a single wellbore trip.

Rotatable tilting couplers and offset collars adjust the blowout preventer bore angle and lateral position, reducing uneven wear on rod strings.

Segmented plates overlap to cover the borehole outlet, preventing impurity entry while allowing pump access.

Curved blades form an iris geometry in the annular packer bore, creating a funnel shape that provides a natural lead for pipe stripping and tool suspension.

Wedge-shaped extrusion ring assembly climbs pedestal ramps to anchor backup rings, preventing elastomer extrusion across varying gap sizes.

Tapered collet surfaces engage mandrel protrusions to prevent premature actuation during deployment and re-actuation during retrieval.

Segmented mixers prevent additive settling during transport while continuous operation eliminates downtime from offsite batch preparation.

A ground closure plate uses a central mandrel to seal vertical bores securely.

Asymmetric slots create axial overlap in the backup ring, eliminating gaps that compromise sealing integrity under high pressure.

Segmented bridging pipe with shear pins enables retrieval of downhole casing patches, resolving installation difficulty and extending service life.

Anti-extrusion spring bands prevent elastomeric seal members from extruding out of grooves under high pressure differentials.

A configurable composite bridge plug converts to frac plugs by removing restriction elements from a hollow mandrel.

A subsea grease injection module regulates pressure using a local accumulator and electric motor-driven pump.

A downhole tool with a bit machines uncased openings in well tubular metal structures to enable annular barrier expansion.

Segmented tubing hanger arrangement enables independent valve tree retrieval via adapter coupling, eliminating the need to pull upper well completion.

A short millable frac plug uses a segmented slip and shearable mandrel connection to center in casing.

Carbon composite packoffs reduce setting force and minimize roll-over failures in harsh downhole environments.

Expandable metal backup ring supports elastomeric sealing elements to seal larger gaps and prevent material extrusion under high pressure.

An offset hanger bowl and angled access port allow independent string handling, reducing service time and preventing entanglement.

A hydrophobic sand pack surrounds wellhead components to repel water ingress, eliminating periodic excavation and reapplication costs.

A tapered wedge fills the separation in a wellhead lockdown ring, providing continuous radial force to prevent hanger shuttling under pressure.

Elastomer stripper elements embed flexible sheet inserts to enhance durability and pressure resistance against premature failure in high-pressure applications.

A blowout preventer packer assembly integrates elastomeric material with harder and softer inserts to form a reliable seal against tubular objects.

Acute angle plates rotate to ninety degrees during radial expansion, preventing member extrusion and ensuring reliable boundary engagement.

Anti-extrusion spring bands prevent seal extrusion under high differential pressures, ensuring reliable downhole anchoring.

Nested tubing hanger segments eliminate leak paths from retractable shoulders while metal seals prevent elastomer degradation during thermal expansion.

Pre-tensioning the seal element reduces expansion stress and improves sealing reliability in wellbore tubing strings.

Longitudinal grooves on the elastomeric body enable rapid fluid penetration, resolving slow sealing speeds in downhole wellbore applications.

Segmented travel stops and telescoping tool bodies enable sequential pressure equalization and slip release, resolving premature activation risks.

A flow diffuser with angled exit ports distributes cement slurry across the entire internal diameter of a well casing.

Bonded buckle prevention ring segments packing element to distribute material evenly around a central mandrel.