Sealing/Packing TRIZ Cases

A plug uses a flexible element on a cone with tapered surfaces cooperating with movable slips to actuate radially.

Segmented hanger structures reduce drillrig time by applying controlled casing weight during cementing operations.

Dissolvable pipe plugs maintain pressure integrity during cementing, then degrade to open pathways for perforation and hydraulic fracturing.

A retrievable bridge plug uses retractable backup rings to simplify removal from the wellbore.

Asymmetric shoulder and cone mechanism secures liner seal while controlling fluid flow direction.

Controlled expansion of packers positions the seal stinger without jarring forces, preventing equipment damage during wellbore isolation.

Rigid seal rings on a rubber cylinder reduce radial deformation and prevent extruded shoulders, maintaining a reliable seal under high axial pressures.

Single-trip cut and pull system uses independent anchor actuation to resolve complexity from separate motorization and multiple trips.

Splayable assembly displaces lower annulus to expand elastic barrier sleeve, resolving fluid isolation bottleneck in slickline bridge plug deployment.

A valve tool trap uses a peripheral sump and lateral gate retraction to clear debris from the center tube.

A bypass sleeve with a lock ring isolates wellhead components from pressurized fluid during operations.

A downhole cutting tool severs external lines through the pipe wall using radial activation.

A gas-operated downhole setting tool uses a dampening assembly to regulate axial force during plug deployment.

Adaptive seat isolates well zones via collet mechanism, eliminating costly milling trips required by conventional frac plugs.

Swage drives expansion cone to radially deploy sealing element against wellbore tubular, resolving insertion complexity in reduced diameter sections.

A helical slip assembly uses a tapered core to radially enlarge the slip for secure wellbore engagement.

An upgrading module replaces electronic controls with mechanical valves to reduce leakage risks and spare part shortages.

A rotating breech pin adapter couples wellhead pressure control equipment to mounted hardware using interlocking teeth.

Filament-wound thermoplastic composites orient fibers to favor hoop strength, reducing friction and corrosion resistance issues in metallic downhole tools.

Dual-container hydraulic pump maintains braided wire seals while reducing surface energy costs.

A rigid chain actuator translates force through a bore to extend and recoil a chain for plug handling.

An actuated load shoulder engages hanger and housing profiles to distribute weight across stacked casing strings.

Offset segments coupled by a long connector prevent premature separation under radial forces, ensuring reliable downhole tool setting.

A porous enclosure houses granular material and changes shape to seal a wellbore, enabling removal via fluid circulation instead of complex jetting.

An intrusion detection subsystem processes acoustical and RF sensor data to classify surface and subsurface objects.

Segmented skeletal member resists tensile forces between ram arms, enabling thinner designs for larger pipe diameters.

A rotating control device seal distributes fluid pressure across a larger surface area to minimize wear.

Extended wrench application protects shear devices from torque damage during downhole plug deployment.

Segregated signal connectors allow maintenance and verification while maintaining structural coupling, reducing operational complexity.

A ram block inner seal assembly uses a metal core and elastomeric member to maintain reliable sealing under high wellbore pressures.

Segmented lock screws with bearings reduce seal friction during radial engagement in wellhead assemblies.

A vented cap stopper manages casing gas pressure through selective permeability, preventing fluid exchange and groundwater influx during well abandonment.

A subsea grease injection system uses a hydraulic accumulator to displace grease from a piston-and-cylinder assembly through a flowline.

Sugar-based activation fluids lower the glass transition temperature of shape memory polymers, enabling safe deployment without thermal hazards.

Variable curvature in a 3D printed barrel slip equalizes stiffness to prevent premature setting and ensure reliable casing engagement.

A contoured ram bore enables differential engagement with ram seals to maintain sealing integrity.

A barrier coating layer on an expandable metal wellbore tool delays hydrolysis to enable controlled expansion and pressure sealing.

A non-rotating plug assembly secures wellhead pressure using a lock ring and support sleeve mechanism.

A lockdown sleeve secures a casing hanger within a wellhead using two independent seals to prevent axial movement and annulus leakage.

An electro-hydraulic pump inflates a packer to isolate zones, eliminating multiple trips required by prior retrieval methods.

An inflatable gripping bladder expands radially inside an overshot housing to secure irregular fish lacking annular projections.

A dissolvable valve isolates tubing strings in hydrocarbon wells using a ball seat mechanism.

A downhole system uses a temperature-activated bypass assembly to enable fluid communication between volumes when an obstruction part is heated.

An actuatable wellbore isolation assembly uses a sliding sleeve to control the expansion of an isolating member for selective fluid barrier deployment.

A removable fracturing plug uses a porous enclosure to set granular material against the wellbore wall for zonal isolation.

Dual interlocking v-shaped shear rams prevent rotation and bending within the ram cavity to maintain wellbore seal integrity.

Reducing the wellhead housing interior diameter eliminates large diverter assemblies and simplifies initial drilling operations.

A safety valve assembly uses a punch and counter-punch mechanism to create two shearing planes for tubular elements.