Deep and ultra-deep wells; HPHT environments; slim-hole and tight-clearance wells where annular space maximisation is critical; horizontal and extended-reach wells; high-pressure gas storage.
13⅜″ L-80 ZC-3 full-flush casing is ZC Steel Pipe's most consistently reordered premium OCTG product for Egyptian deep-well operators. The repeat nature of this 380-piece order reflects the Egyptian oilfield's standardisation on this specification for intermediate casing strings in deepwater Mediterranean and Western Desert deep gas wells.
L-80 for Egyptian deep-well service: L-80 provides the minimum 552 MPa (80 ksi) yield and NACE MR0175 hardness compliance for wells with moderate H₂S partial pressure. Egyptian deep gas reservoirs commonly encounter both CO₂ and H₂S, making L-80 the appropriate grade choice over J55/K55 (insufficient yield) and P-110 (fails sour-service hardness limits at the production string level).
ZC-3 full-flush connection advantages for 13⅜″: - Slim-hole efficiency: The full-flush OD profile maximises annular area between the 13⅜″ string and the 20″ conductor above it, preserving annular flow capacity during cementing - HPHT sealing: Metal-to-metal taper seal with torque shoulder provides gas-tight performance independent of thread compound degradation at elevated well temperatures - High torque capacity: Critical in horizontal wells where pipe rotation during run-in causes cyclic torsional fatigue loading on connections
ZC Steel Pipe has supplied this Egyptian operator across multiple project phases. EN 10204 3.1 MTC, ZC-3 gauge certificates, and run-in-hole thread compound applied before shipping are standard for this account.