Sealing/Packing TRIZ Cases

Asymmetric beam cross section increases lateral area moment of inertia to resist bending moments in downhole anchor slips.

Integrated sequence valve assembly controls selective fluid flow for plug anchoring and retrieval without disconnecting the production tree.

Segmented explosive charges create a plasma jet that penetrates the riser wall, enabling reliable disconnection at angles exceeding 3 degrees.

A bite connection replaces welding with a cutting ring and threads, reducing installation time while maintaining radial expansion resistance.

Segmented BOP seal inserts with interlocking tips and slidable bodies maintain reliable sealing across varying pipe diameters under high pressure.

A movable activation ring retracts to expand the inner diameter, allowing larger drilling tools to pass through without removing fixed seats.

An impinging assembly disintegrates the frangible glass plug to restore flow without damaging the wellbore.

An articulated debris barrier extends radially to span an annular gap and locks via a snap ring engaging a piston groove.

An annular flow lubricator uses an internal flow tube to create a dedicated liquid diversion path within the device body.

A downhole seal apparatus employs a bonding agent that breaks down at high temperatures, allowing the sealing element to conform to irregular borehole surfaces.

A reinforced elastomeric sealing layer prevents extrusion through gaps during expansion, resolving the trade-off between adaptability and seal reliability.

A movable activation ring adjusts the wellhead bore diameter, eliminating manual seat removal for larger drill bits.

Movable sleeves expose flow ports to divert cement into the annulus, resolving single-stage cementing limitations.

An annular seal assembly uses a pressurized lubricant passage to reduce friction between the seal and drill string.

Segmented slip elements dissolve inner bodies via chemical agents to eliminate large milling debris, allowing small fragments to circulate out of the flowbore.

A packer system uses a spring and ratchet mechanism to maintain seal pressure on the packing element during temperature swings and pressure reversals.

Segmented cooling channels in the mandrel remove heat from bearing surfaces, resolving high-temperature trade-offs that shorten component life.

Combination well intervention apparatus with fluid pressure actuated locking mechanisms for remote operation.

Winch systems stabilize payloads against pressure oscillations during subsea installation.

A cylindrical protective sleeve deploys under stress to protect the sealing element during conveyance.

Segmented metal diaphragms isolate expansion and barrier compartments, enabling high collapse resistance without increasing sleeve thickness.

Hydraulic latching and tapered-thrust bearings reduce mechanical wear and downtime in jackup rig operations.

Segmented sealing elements resolve hermeticity trade-offs in multistage stimulation by combining low-hardness expansion with high-pressure resistance.