Sealing/Packing TRIZ Cases

A rotatable cup sealing assembly locks to a mandrel via mechanical interlocks and expands under fluid pressure.

An indexing cassette attached to through tubing mandrels enables fluid communication shifts within a dual string packer.

Compliance areas in a frustoconical member reduce modulus for easy setting while resisting deformation under pressure.

A bearing ring cushions the frangible glass plug against hard surfaces, preventing premature breaking during installation.

Grooves on the packer surface channel fluid to an annular space, reducing the high pressure required to seal the wellbore annulus.

A lever-based expansion control device positions packer elements to ensure uniform radial compression.

A packer assembly with sequentially operated hydrostatic pistons radially expands seal assemblies via pressure differences between the wellbore and internal chambers.

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

Pre-welding the casing head support unit in a controlled environment eliminates field weld failures and prevents leaks between conductor strings.

Hydraulic flow rate changes actuate a piston to engage or disengage a release dog, enabling retrieval of inner assemblies without compromising seal integrity.

Segmented composite backup rings overlap gaps between adjacent rings to prevent seal extrusion while allowing rapid milling of the plug.

Adjusting viscosity and yield stress prevents channeling in top-heavy configurations, ensuring uniform cement distribution.

Segmented sealing elements isolate hazardous gases in low-pressure wells, reducing reliance on heavy lifting equipment.

Hydraulic actuators drive a carriage along rails to transport heavy blowout preventer bonnets, reducing worker injury risk during maintenance.

A pyrotechnic blowout preventer uses a propellant charge to propel a piston and gate across the wellbore bore.

Segmented elastomeric packer inserts pivot to engage wear plates, reducing radial gaps and preventing material extrusion during actuation.

Segmented locking rings prevent backlash and eliminate springs, ensuring stable axial engagement under high pressure.

A bi-directional booster assembly maintains internal pressure within a wellbore packing element.

A load diverting snap ring transfers tensile loads between a wedge assembly and mandrel support portion.

Segmented sealing components thread through the flow bore to replace seals while the hanger stays in place, cutting maintenance downtime.

An inflatable support device applies biasing force to wellbore walls using fluid pressure.

Threaded shafts convert motor rotation into linear ram motion, reducing power consumption and operational complexity in pressure control systems.

A single-trip annular seal running tool seats and locks the wellhead hanger using rotating energizing rings.

Composite particles disperse in metallic matrix to form galvanic cells for controlled degradation.

A sacrificial backup member breaks during setting to prevent seal extrusion between circumferentially adjacent slips, maintaining integrity under pressure.

A tubing hanger assembly applies tension to production tubing through a retaining mechanism.

A corrugated energizing ring provides radial interference fit between wellhead members.

Composite dissolvable materials replace mechanical drill-through removal, reducing retrieval time and material waste in extreme wellbores.

Arcuately extending anti-extrusion members restrict relative movement between slip segments to maintain fluid-tight boundaries in downhole plugs.

Segmented anti-extrusion rings with compression springs prevent premature packer expansion and element extrusion in cased well bores.

Segmented downhole plug releases the inner sleeve from the mandrel, reducing metal volume and milling time.

Multiple sealing elements separated by a spacer increase surface area and redundancy, preventing seal failure on irregular wellbore surfaces.

A single packer system collects formation fluids through an expandable sealing element and internal drains.

A pulling tool integrates a bailer chamber to draw debris from the fish neck during the initial run.

A lockdown member prevents upward loosening of the energizing ring by engaging annular grooves, maintaining seal pressure rating under cyclic stress.

A downhole tool uses hydraulic pressure to shift a seal member along an angled surface for radial expansion.

A hydraulic expandable annular barrier employs a retaining ring to mechanically secure the sleeve, preventing thermal damage during expansion.

A support ring shifts axially to produce radial expansion for packing element containment.

Segmented blades pierce and rake tubulars to reduce severing force while shavers remove material for effective sealing.

Segmented well architecture allows tubing hanger removal while the tree remains landed, eliminating sequential disassembly delays.

Rotating agitators prevent cement slurry hardening in stuck bailers, enabling successful plug placement.

Hydraulic actuation drives locking segments to secure wellhead hangers without rotation, eliminating complex mechanical operations.

Integrated crown plug tool merges setting and retrieval functions into a single assembly, eliminating repetitive wireline operations.

Cam-driven backup fingers deploy radially to plug extrusion gaps, enabling high-pressure zone isolation.

Longitudinal actuation expands anchor and packing assemblies, enabling reliable cement curing anchoring in wells with large casing expansion ratios.

Split drive mandrel with one-way locking mechanism manages torque release to prevent dangerous backspin during well servicing operations.

External connector joins umbilical to tubing hanger without drill string clamps, eliminating falling hardware risks.

A capsule assembly anchors to well casing using a movable cone and slip mechanism to secure the wellhead.

A temporary wellbore seal breaks via a shearing element when pressure exceeds a threshold, resolving the reliability versus ease of operation contradiction.

A packer assembly uses a tubular spacer to separate upper and lower elements for single-trip deployment.