Wellhead Equipment
CDI OIL & GAS offers API-compliant wellhead equipment designed to support pressure control and flow management throughout drilling, completion, and production stages, with configurable options based on bore size, pressure class, material, and operational requirements, including tubing heads, casing heads, spools, adapters, and high-pressure assemblies for reliable field operations.
Explore Our Wellhead Equiment
Wellhead Equipment Applications Throughout the Well Lifecycle
The wellhead is one of the most critical pressure control systems in oil and gas operations. From the moment a well is drilled until the end of its production life, wellhead equipment provides structural support, pressure containment, well integrity, and safe flow management.
Our API 6A wellhead equipment is engineered to ensure reliable performance throughout every stage of the well lifecycle.
Drilling Stage
High-Capacity Casing Suspension & Annulus Pressure Isolation
Key Functions:
- Suspends surface, intermediate, and production casing strings with high-load capacity
- Provides primary metal-to-metal and elastomeric annular pressure seals
- Standardized top flange interfaces for seamless Blowout Preventer (BOP) stack installation
- Maintains zonal isolation and prevents inter-annular pressure build-up (APB)
Typical Wellhead Components:
- Casing Head Housing (Bradenhead)
- Casing Head Spool
- Casing Hangers
- Packoff Seals & Bowl Protectors
Customer Benefits:
- High load-bearing capability for deep/ultra-deep well casing strings
- Verified secondary seal porting for immediate annular pressure monitoring
- API 6A PSL1–PSL3G certified pressure containment during heavy drilling operations
Well Completion Stage
Precise Tubing Landing & Control Line Integrity
Key Functions:
- Lands and seals production tubing strings with precise axial alignment
- Integrates hydraulic/electric control line feedthroughs for Subsurface Safety Valves (SCSSV)
- Provides top-flange connection for Christmas Tree installation and pressure testing
- Ensures reliable tubing-to-annulus pressure isolation during fracturing or stimulation
Typical Wellhead Components:
- Tubing Head Spool (THS)
- Tubing Hanger (Extended Neck / Dual Pocket)
- Tubing Head Adapters (Tree Saver / Adapter Flanges)
Customer Benefits:
- PR2-tested seal technology ensures leak-free performance under thermal cycling
- Multi-line feedthrough options support intelligent well completion & ESP cables
- Streamlined landing procedures to minimize rig downtime during completion
Production Stage
Severe-Service Flow Control & Wellbore Containment
Key Functions:
- Regulates high-pressure oil, gas, and multiphase production flow rates
- Provides primary well shut-in via double-block slab gate valves and emergency ESD actuators
- Accommodates artificial lift installations (ESP, Rod Pump, Gas Lift)Delivers long-term sour gas (H2S/CO2) and sand erosion resistance
Typical Wellhead Components:
- API 6A Christmas Tree Assembly
- Slab Gate Valves (Master & Wing Valves)
- Choke Valves
- Surface Safety Valves (SSV) with Hydraulic/Pneumatic Actuators
Customer Benefits:
- NACE MR0175 / ISO 15156 compliant materials for harsh sour gas environments
- Forged alloy construction delivering extended operational life up to 10,000–15,000 psi
- Modular valve design enables online maintenance and reduced total cost of ownership
Your Trusted Wellhead Equipment Partner
Why Choose Our Wellhead Equipment
Optimizing casing and tubing head configurations is essential for long-term wellbore integrity and drilling schedule efficiency. We provide end-to-end wellhead supply chain solutions, matching field-proven designs to your drilling and production requirements.
Complete System Integration
Single-source supply for complete wellhead packages—including casing heads, tubing heads, hangers, and companion flanges—eliminating component mismatch risks.
Versatile Structural Options
Supply access to conventional multi-stage, compact multi-bowl, and offshore single-riser multi-well configurations designed to minimize NPT and stack height.
Severe Service Readiness
Field-ready sealing options and CRA cladding engineered for extreme wellhead loads, heavy casing strings, and aggressive formation fluids H2S/CO2
Flexible Project Customization
Custom feedthroughs for ESP cables, hydraulic control lines, emergency slip hangers, and specialized side-outlet configurations tailored to your casing program.
Streamlined Procurement & Logistics
Single-point contact for technical vetting, quality auditing, document consolidation, and global shipping to simplify complex overseas project fulfillment.
Rigorous Material & PSL Control
Strict adherence to API Spec 6A PSL 1~4 and PR1~2 standards, ensuring full material traceability and mechanical integrity across all casing/tubing sizes.
