Drilling Rods TRIZ Cases

A large-diameter single-layer winch drum reduces sheave count and bending cycles, extending wire rope lifetime in offshore hoisting systems.

A self-aligning wet connector uses a key and keyway mechanism to orient downhole tools during stabbing.

A tubular airlock assembly creates a buoyancy chamber to reduce friction during tubing deployment.

A coiled tubing connector uses a split lock ring to anchor internally while sealing externally.

Nested pipe design with safety valves protects crew from behind-casing blowouts during initial drilling setup.

Collet locking members engage the wellhead outer profile to distribute bending moments, increasing operational safety and system efficiency.

A dual rubber cartridge attaches two seals to an inner barrel for rotation with the drill string.

Segmented design separates gripping and sealing functions, using stress-relief notches in hardened teeth to prevent cracking during radial expansion.

Part-circular thread bottom surfaces distribute tension across the root area to reduce maximal stress concentrations in drill string components.

An elliptical transition section reduces stress concentrations in drill string rods by distributing loads across a curved profile.

Segmented connection sub design simplifies post-ESP retrieval reconnection by using tubing pressure to actuate valves, avoiding finicky wet connect operations.

Segmented titanium and steel members assemble into a reconfigurable stress joint that compensates for subsea forces without custom manufacturing.

A rocking jaw gripper uses a spring-loaded mechanism to restrain tubulars during make-up and break-out operations.

Angled drill pipe nozzle assemblies discharge fresh fluid into the annulus to restore annular velocity and suspend cuttings in extended reach wells.

Thermoplastic seals on the extended ram resolve chemical degradation and component complexity by providing reliable central bore sealing.

Automated pipe ejection mechanism positions production tubing laterally using torsional members and hydraulic actuators.

Dynamic time windows adapt to fundamental frequencies to resolve fixed period inaccuracies in stick-slip measurement.

A subsea flying lead transmits electric current along fluid line tubing to reduce equipment weight and complexity.

A downhole wireline cutting tool uses a plunger to drive knives against the conductive line for clean separation.

Hydraulic piston actuation mediates torque transfer to resolve top-drive precision limits during tubing string make-up operations.

Segmented bearing carriers and cushioned dynamic seals resolve leakage under high pressure.

Segmenting the power system onto a separate skid reduces vehicle length and weight to meet transport regulations.

Segmented housings and annular seals isolate drill collar contacts from drilling mud, preventing moisture ingress during make-up.

Welding an isolation tool and flow spool into one component eliminates flanges, reducing diameter to enable retrofitting existing drilling rigs.

A subsea well safing system uses an ejector device to separate the marine riser from the blowout preventer stack.

A lifting coupling system transmits tubular weight via engaging hooks and lugs to enable secure hang-off operations.

Parallel threads and symmetrical shoulders enable elastic deformation to prevent galling, ensuring fluid-tight integrity during reuse.

A tubing hanger shuttle valve uses an accumulator to store closing pressure.

A coil tubing tower structure uses modular intermediate units to enable craneless assembly operations.

Sleeve bearings in a segmented wear band isolate sliding contact to minimize torque demand and prevent erosion during extended reach drilling operations.

Splittable articulation sleeves with spherical sector seats distribute bending moments over larger areas, preventing deformation at contact points.

A downhole hammer drill mechanism uses a spring system to generate oscillating force for enhanced drilling efficiency.

A blowout preventer blade system uses a piercing point and cutting surfaces to sever well tubulars.

A pressure joint houses a telescopic assembly with a high-pressure seal within a low-pressure slip joint.

Movable slips in a tapered bowl distribute tubular weight to prevent crushing damage from excessive gripping force.

Segmented flow paths in a crossover joint ensure complete gravel pack distribution by bypassing carrier fluid loss.

Variable reluctance measurement sensors detect compressive stresses and buckling risks on extended drilling risers through real-time force monitoring.

Foldable wall section creates radial seals against irregular wellbore walls, enabling reliable zonal isolation without separate elements.

Pressure compensators maintain hydraulic fluid pressure above mud levels to prevent contamination of the drive system seals and extend service intervals.

An annular flow path between inner and outer sleeves channels pressurized fluid into screen chambers, eliminating complex mechanical valves.

Electronic control units replace pneumatic systems to resolve signal degradation and slow response times in subsea blowout prevention equipment.

Curved helical blades and a universal wrench adaptor reduce drag and pressure buildup while preventing casing wall damage.

Automated positioning mechanisms align tensioner cylinders with tension rings, eliminating manual handling of heavy shackles in hazardous offshore environments.

Integrated track members on telescoping mast sections allow top drive movement without assembly, reducing setup time.

An RFID reader detects tags on a subsea conductor pipe to determine rotational position, resolving murky water alignment errors.

Powered sheaves in a subsea winch convert frictional resistance into downward pull, enabling tool descent at depths exceeding 500 meters.

A top drive control system manages simultaneous right and left hand torque application for automated drill string rocking operations.

A compensated elevator link uses hydraulic cylinders and a compressible fluid system to adjust length automatically.

A winch overload protection system detects excessive load and releases the brake to maintain cable tension.

A submersible pumping system powered by a seawater-driven drill motor eliminates surface fluid return requirements.