Sealing/Packing TRIZ Cases

Tapered ridges on the annular body form an interference fit with the mandrel to prevent fluid entry between the packing element and mandrel.

A multi-barrier seal system uses a shearing ram to cut an auxiliary line and create a redundant sealing barrier.

A subsea module tool hanger system provides sealing interfaces for in-well tool strings to isolate wellbore annuli.

Segmented supporting chains prevent material extrusion and sticking by maintaining constant circumference, ensuring reliable sealing.

Integrated frustocone seat reduces assembly length while maintaining plug isolation reliability in borehole systems.

A wellbore isolation device uses a primary valve to divert fluid into an annulus for debris removal.

Composite slips with dissolvable substrates eliminate milling costs by enabling easy tool retrieval.

Interconnectable clamp sections with intermediary seal members prevent subgrade contamination while enabling component recovery.

A hydraulically actuated piston energizes a seal in an isolation sleeve to maintain containment when primary gaskets fail during blowout conditions.

Segmented sealing modules convey through standard lubricators and assemble downhole to isolate zones exceeding equipment length limits.

Segmented slip design reduces stress concentration during well operations by varying arc lengths across head, tail, and intermediate sections.

External spirals anchor the base part in the borehole, and expander elements arrest falling drill rods by expanding laterally to resist shifting movement.

A folding backup ring with a V-shape configuration extends radially to close extrusion gaps in packer sealing elements.

Segmented pistons release individual load cells without tilting the casing head, eliminating pinch points and safety risks.

Retention fins on drillable latching dogs maintain secure casing engagement during milling, reducing drill bit damage and vibrations.

Auto-J sleeve transitions straddle packer to stay-set condition after pumping stops, enabling reliable pressure isolation for fracture closure analysis.

Control line hanger isolates damaged lines to restore safety valve function without costly workovers or hot tapping operations.

Tapered dart engages sleeve taper to prevent rotation during cementing, eliminating costly well intervention delays.

A packer setting sleeve redirects hydraulic load to set upper components before lower slip expansion.

Shear pins in the mandrel release locking dogs under pressure, resolving friction-induced retrieval bottlenecks.

A compliant packer seal uses peripherally mounted rod pistons to actuate radial deformation on a tapered surface.

A mechanical stage tool sets packer elements using landing plugs and fluid pressure signals.

Slotted retrieval sleeve prevents hydraulic resistance and debris clogs by forming fluid connections between the lower cone and packer mandrel.

Segmented plug portions shear during installation, preventing premature setting while allowing full tool reuse without replacing components.

A hydraulic torque assembly applies rotational force horizontally to wellhead components through the bore.

Dual ram assemblies in a rotating control device system divert fluids and cuttings away from the platform while maintaining wellbore integrity.

Wedge guide arms center off-center pipes in blind shear rams to ensure complete shearing.

A dual rubber cartridge attaches rotating seals to an inner barrel for quick installation and removal.

Segmented plug segments adapt to deviated boreholes, enabling reliable stage cementing without waiting for full hardening.

Interlocking segments adapt to non-circular geometries, reducing extrusion risk and setting force in resource recovery sealing systems.

Bi-directional pressure intensification pins transmit axial load through a wedge-shaped packing element to seal the casing annulus under high wellbore stress.

A collet lock assembly switches between release and set positions to manage bi-directional movement and load transfer in downhole tools.

A piston-driven clamp device uses fluid pressure to secure rotating control device housings without manual intervention.

Hydraulic pressure drives the mandrel displacement in this setting tool, resolving reliability issues with complex mechanical actuators.

Flexible sealing members adapt to varying pipe diameters to contain drilling fluids without requiring heavy equipment.

Segmented bores isolate coil tubing from valve operations, preventing severing during emergency shut-offs while maintaining chemical injection capabilities.

External ribs on a degradable plug body anchor the device while eliminating milling residue after fracturing operations.

An asymmetric support ring step engages an expansion ring portion to limit axial extrusion and prevent back-up ring shear failure.

Composite packer assembly uses embedded inserts to support elastomeric body, preventing extrusion during sealing across variable pipe diameters.

A dissolvable salt plug coated with a rubber emulsion film prevents premature dissolution, reducing drag forces and enabling casing tools to reach total depth.

Expanding latch rings lock the tubing hanger assembly, eliminating hydraulic actuation complexity and preventing component detachment during rotation.

A downhole tool with a composite wedge mandrel provides reliable wellbore isolation despite extreme pressure and temperature degradation.

A through-tubing annular isolation device transitions from a collapsed form to an expanded tubular structure using elastic elements.

Segmented expandable sleeve absorbs excess expansion energy via thicker end sections, preventing formation fracture during well completion.

A compressible plunger and torsion spring expand plug feet radially to lock inside a diamond drill hole.

A tubular anchoring seat uses a frustoconical surface to radially expand a collar for secure engagement.

A hydraulic latching assembly moves pivotally attached gripping members and latch members via an actuator to secure a rotating control device.