Sealing/Packing TRIZ Cases
- Expandable Frac Plug Tubular for Wellbore Pressure Isolation
A single expandable tubular frac plug replaces multi-part tools to improve setting reliability and maintain differential pressure integrity in casing.
- Subterranean Fracture Sealing With Equal-Density Viscous Fluids
Equal-density fluids with different viscosities seal propagating fracture tips, limiting leaks and preserving high-pressure underground energy storage.
- Hybrid Dissolvable Frac Plug With Anti-Rotation Drill-Out
Anti-rotation connectors and slip locking keep the frac plug from free spinning, enabling faster drill-out and less coiled tubing debris.
- Hydraulic Lock Ring Tubing Hanger for Leak-Safe Wellhead Sealing
Hydraulic actuation replaces multiple lock screws in a tubing hanger, cutting leak points and simplifying wellhead sealing and maintenance.
- Wellhead Casing Rotation Assembly for Horizontal Well Cementing
A stroke tool and downhole swivel let heavy casing rotate outside the wellhead, improving cement displacement and zonal isolation.
- Rotating Indexing Coupling for Precise Subsea Tree Orientation
A rotatable coupler and coiled hydraulic tubes orient subsea production trees precisely while avoiding BOP modifications and shared-seal failures.
- Hydraulic Ratcheting Tool for Low-Pressure Wellbore Seal Setting
Repeated low-pressure cycles inflate multiple wellbore seals through piston and check-valve ratcheting, reducing well control risk and setting time.
- Double Grip Packer Release Assist for High-Pressure Slip Release
A release assist assembly relaxes the compressed packing element under high downhole pressure so slips can disengage and the packer can be retrieved.
- Eutectic Alloy Casing Repair for Rapid Gas-Tight Well Sealing
Molten eutectic alloy fills a milled casing window and solidifies fast to create a durable gas-tight seal for concentric casing repair.
- Tubing Hanger Orientation Assembly for Low-Torque Subsea Alignment
A rotary actuator and orientation sensors enable precise, repeatable tubing hanger alignment independent of the BOP during subsea installation.
- Wellhead Hanger Seal Assembly for Cementing Flow Control
A movable seal assembly lets fluid pass through hanger passages during cementing, then seals the wellhead to cut installation time and cost.
- Well Control Line Severance Using Cement-Restrained Orbital Cutting
Cement injected around well control lines restrains movement during orbital cutting, enabling complete severance and a leak-tight abandonment seal.
- Nitrogen Tank Temperature Gauge for Accumulator Pressure Stability
Real-time nitrogen tank temperature sensing helps subsea accumulators avoid pressure discrepancies, failures, and downtime.
- Downhole Ball Release Mechanism for Cable Erosion Avoidance
An electrically actuated downhole ball release seals the plug so monitoring cables can be moved away from erosive high-velocity fracturing flow.
- Pressure Transfer Sleeve for Top-Slip Retention in Frac Plugs
A pressure transfer sleeve keeps frac plug top slips engaged during pump-down and fracturing while enabling inner mandrel removal.
- Split Elastomer Packer for Dynamic Wireline Leak Control
Split elastomer halves and energizing rings increase radial contact pressure around cables, reducing wear-related leakage in wireline operations.
- Deployable Control Band Sealing Assembly for Open-Hole Expansion
A deployable control band supports radial expansion in open-hole sealing assemblies, preserving axial stiffness and limiting extrusion.
- Motor-Driven Annular Blowout Preventer With Radial Packer Compression
Electric motors drive pusher plates to radially compress the packer, replacing hydraulic BOP control for reliable wellbore sealing.
- Strain-Absorbing Downhole Packer for Controlled Swell Sealing
A strain-absorbing undercut lets a swellable elastomer seal the wellbore while limiting casing strain and expansion-related damage.