Sealing/Packing TRIZ Cases

A force transferring member uses a shear pin to transmit actuation forces between seal and cone assemblies.

A degradable metal coating isolates a swellable packer sealing element from wellbore fluids until deployment.

Supporting elements distribute horizontal loads from the blowout preventer to the seabed, reducing bending strain on the wellhead casing.

Axially compressible biasing member maintains slip engagement against pressure fluctuations by applying continuous axial force to the cone body.

Segmented pipe sections expand radially to seal against casing walls, resolving bottlenecks from restricted outer diameters and narrow tubing restrictions.

Segmented liner plugs with internal voids catch drill bit cutters, accelerating disintegration and reducing milling time.

Segmented expandable cells and guard drains resolve the trade-off between sealing reliability and excessive weight in dual or quad packer designs.

Segmented slips reduce manufacturing costs by molding discrete segments instead of milling solid material.

Sacrificial members between packer components destruct under heat to create clearance, preventing compressive loads and premature actuation.

Segmented grease compartments prevent leakage to extend bearing life, while a top drive guide reduces rig height by removing the kelly drive.

A subsea stripper packer uses a sliding window to seal tubulars under pressure.

Integrated helical alignment eliminates external spools, reducing fatigue loading and installation costs for offshore wellheads.

Segmented seal plates and nested carriers ensure reliable sealing engagement under high pressure, preventing fluid leakage in oilfield operations.

A radially offset slot in a slip ring ensures 360-degree contact, reducing cantilever effects and misalignment.

Template connects to riser equipment through members to reduce loads transferred to the wellhead.

Radial explosive material generates a high-velocity plasma jet that cuts through tubular elements, resolving reliability issues during undesirable fluid flows.

A bi-directional sealing ram assembly integrates fluid communication channels through the ram body to provide effective sealing around a drill string.

Opposing helical cable layers reinforce the elastomeric bladder, maintaining sealing reliability under high pressure without material failure.

A wellbore bailer uses a puncture member to pierce a pressure barrier, releasing stored fluid to drive a piston.

Radial flow channels in permeable media segregate fluid paths, preventing sample contamination while maintaining structural support against the borehole wall.

Sequential lateral extension of segmented structures prevents explosive decompression failure while maintaining extrusion resistance under high pressure.

A pressure disintegrable device uses a heterogeneous material to transmit force and lower its melting point under load.

A modular millable bridge plug uses interchangeable shear and cap members with mechanical locking to ensure stable downhole connection.

A running tool assembly uses a pressurized piston chamber to actuate a locking member and secure a wellhead hanger.

Segmenting the mandrel with a high-strength threaded insert increases shear area to withstand run-in loads without compromising composite weight.

A pump unit injects polymeric hardening liquid into a well annulus using controllable pressure to form a sealing barrier.

A slip assembly allows individual slips to move radially outward by different amounts via a cone and deformable elements.

A tubing spool with independent channels and back pressure valves manages fluid flow between the tubing string and annulus.

Sequential nested expansion stages achieve ultra-high ratios exceeding 120% to seal deformed casings.

A packer setting mechanism uses a plug and resilient member to actuate a piston via fluid pressure changes.

Viscous lubricant creates a fluid film that minimizes component wear and pressure fluctuations, enabling continuous operation under high wellbore pressures.

An Inconel inlay embedded in the wellhead locking profile boosts yield strength, preventing casing hanger movement under high pressure.

Solar or wind generators charge batteries to power safety actuators, replacing hydraulic accumulators and reducing rig space requirements.

A mandrel cut allows a wedge cone to retract, relieving residual rubber pressure in the sealing element before slip release.

Inclined surfaces guide the load shoulder to correct position, eliminating manual measurement and reducing installation time.

Fluid slots relieve pressure during movement, preventing jamming that damages oilfield equipment.