Sealing/Packing TRIZ Cases

A degradable grip uses a composite of hard particles in a metal matrix to anchor securely.

Partitions segment set cement to lower drilling force requirements while hydrophobic surfaces prevent bonding during reverse cementing operations.

Overlapping petal assemblies on plugging tools and packing elements prevent elastomer extrusion in subterranean wells.

A downhole tool mandrel uses a fingered member to support a sealing element in an annular space.

A cement retainer mixes treatment fluids within a housing using movable sleeves and fluid ports to prepare sealing agents.

Single-run toolstring eliminates multiple wireline trips by housing plug setting, punching, and cutting modules in one sleeve to reduce operational time.

Interlocking arms with anti-deflection features engage to block lateral and axial movement during shearing operations.

An elastomeric isolation tool bridges wellhead side ports using circumferential wedges to engage seals against the interior wall.

Segmented cutting edges with varying radii handle solid and tubular objects in blowout preventers.

A mechanically actuated hanger running tool secures wellhead components via integrated rotational and circumferential forces.

A plug reception assembly with a disintegratable component enables self-removal from boreholes.

A cement retainer assembly with a unidirectional float valve and removable upper stinger controls fluid flow during placement.

A hydraulic setting tool metering module restricts fluid flow to generate a differential pressure between isolated chambers.

A pressure control device uses a flexible cup member to allow communication conduits to pass through intact without splitting.

Differential pressure areas on the clutch piston transfer operational loads away from ratcheting teeth, reducing mechanical wear and extending service life.

Segmented backup elements move radially along a grooved frustoconical surface to prevent plastic deformation during repeated setting cycles.

Composite materials resolve the strength-weight trade-off in subsea well protection assemblies, enabling easier installation and maintenance.

Doped magnesium alloys degrade via galvanic corrosion in fresh water, eliminating complex milling operations for downhole tool retrieval.

High yield steel setting sleeves with slotted fingers reduce pushing force during expansion, preventing tubular damage from excessive radial travel.

An extended plate protrudes beyond a support plate in a blowout preventer packer assembly to contact adjacent blocks first and prevent fluid leakage.

Disposable setting tool integrates wireline adapter kit functionality with a self-metering system to control stroke speed.

Mated anti-rotation features on plug members resist drill bit torque, preventing rotation and enabling efficient cement plug removal.

A pressure intensifying means expands an annular barrier sleeve via localized hydraulic force, preventing wellbore collapse during zone isolation.

A slip and cone arrangement uses a curved concave groove to nest a convex slip surface, maintaining radial position during axial movement.

A mandrel lock device uses a bias sleeve to urge a body ring into gripping engagement with the mandrel for secure sealing.

Segmented degradable friction rings provide anchoring grip while electrolytic materials ensure complete removal after treatment.