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.

A vulcanized non-swelling outer layer with patterned grooves exposes inner swellable sealing material to control fluid contact.

Locking mechanisms prevent premature setting of the packing element by maintaining locked positions until specific pressures are applied.

A rigid packer body combined with a flowable sealing compound fills crevices around irregular tubing profiles to maintain well control integrity.

Hydraulic hanger running tools eliminate rotational threading to lower manufacturing costs and installation time.

Segmented ribs on a wavy backing ring divert axial energy into radial contact, preventing metal fracturing under high pressure loads.

Segmented end ring leaves pivot radially outward to prevent seal extrusion while accommodating longitudinal line installation.

Composite sealing element eliminates rotational wear and extends useful life during deep-water drilling operations.

A safety valve shears tubular elements using hardened cutting inserts and a hydraulic seal for well closure.

V-shaped non-sealing casing shear rams cut 9⅝″ tubing in a 13⅝″ BOP, eliminating equipment swaps.

Exterior piston actuates a second sealing element against casing walls using annulus pressure differentials, eliminating internal flow paths that cause leaks.

Radially movable slips wedge between fingers for anchoring while a deformable metal seal engages the structure to resolve fixation efficiency issues.

Universal cap assembly with split lock ring enables fluid injection without removal, reducing rig time and cost.

Hydraulic piston moves adjustable seal radially inward to contact both pipe surfaces, preventing uncontrollable formation fluid flow.

Dynamic rails on a ram wedge engage grooves in a ram seat to reduce the sealing gap under high pressure, minimizing leakage.

Threaded compression seals adapt to varying tubular diameters, resolving sealing effectiveness versus adaptability contradictions.

A fully disintegrating plug uses a granular seal material pushed against the borehole wall to isolate well zones during fracturing operations.

Relocating hydraulic and electrical connections to the external tubing spool surface eliminates internal wetmate coupler wear.

A downhole isolation tool uses a plastically deformable sealing element that irreversibly deforms when swaged to create a permanent seal.

Segmenting the mandrel into a reusable setting tool reduces installation time and operational costs while maintaining hydraulic pressure resistance.

A bore sealing apparatus encloses a wireline using retractable means to isolate the annular region for subsequent injection of fluid and solid particles.

Shear bridge fasteners lock cone and slip cage, preventing premature actuation until pressure shears connectors for reliable radial expansion.

Movable panels engage the tubing hanger to enable installation with a smaller blowout preventer, reducing device complexity.

Rotating a lock ring drives a dog along a cam surface to reduce longitudinal extent and weight while maintaining locking reliability.

Segmented plates with radial thickness gradients prevent extrusion under high differential pressure.

Segmented shearing ram ledges concentrate shear force to cut tubular strings, resolving actuator power limits at increased depths.

Indicator assembly with spring-loaded pin detects hanger placement via visible bands, reducing costly cementing corrections.