Sealing/Packing TRIZ Cases

Mandrel feedthroughs route control lines through expandable metal packers, resolving trade-offs between manufacturing cost and system versatility.

Nested expandable liners seal the annular space to prevent fluid migration and maintain structural integrity under high pressure.

Bow-shaped backup rings convert to a teardrop form during axial compression, radially extending to conform to wellbore irregularities.

Movable inserts with lips adjust sealing diameter to block elastomer flow and extend ram block life.

A settable wellbore device uses a phase-change material to retain radial force in solid form and release it upon melting.

A subsea storage vessel receives hydrocarbon fluids from an intervention system via a pump, enabling direct fluid exchange without surface recovery.

A nested tubing hanger uses a radially moveable engagement to lock an inner hanger within an outer hanger.

A tubular plug uses disintegrating on demand material to block fluid flow until an ignition device triggers rapid breakdown.

A cement plug system uses a pass-through catching mechanism to actuate plugs sequentially via axial force transmission.

A wellhead hanger assembly transmits torque through a castellated outer sleeve to rotate tubular strings during cementing operations.

Segmented plug design combines high-strength pressure resistance with easily millable removal material.

A mechanically actuated hanger running tool uses a push ring to drive a lock ring into a casing spool recess for secure attachment.

Activator ring lock packoff assembly connects oil well equipment using segmented tabs and slots to eliminate high-energy helical thread assembly risks.

Segmented center mandrel applies shear-driven force only to the plug nose, allowing obstruction penetration without triggering premature slip engagement.

Polymeric well head cover features coaxially aligned discharge bores for dual pipe support.

Segmented hanger with movable side doors enables sealed cable pass-through without cutting or splicing operations.

Segmented inserts with varying lengths prevent elastomeric extrusion during actuation, maintaining sealing pressure in high-pressure wellbore environments.