Wellhead tools
Technical Specifications – API 6A Parameters
| Specification Parameter | Our Range | API 6A Class |
|---|---|---|
| Working Pressure | 2,000 – 20,000 psi | 2M – 20M |
| Material Class | AA, BB, CC, DD, EE, FF, HH | AA to HH |
| Temperature Class | K, L, P, R, S, T, U, V, X ( -60°C to +180°C) | K through X |
| Product Specification Level | PSL 1, 2, 3, 3G | PSL1 – PSL3G |
| Performance Requirement | PR1, PR2 | PR1 – PR2 |
| Flange Standards | API 6A Type 6B, 6BX | Per API 6A |
| NACE Compliance | MR0175 / ISO 15156 (optional) | For sour service |
| Material | Forged or cast alloy steel (min. 45K API), stainless steel overlay | AA – HH |
Applications
Our wellhead tools are deployed across:
| Application | Key Tools Required |
|---|---|
| Onshore drilling & completion | Casing head, casing spool, test plugs, wear bushings |
| Offshore platform wellheads | Tubing head spool, BPV, VR plugs, corrosion-resistant seals |
| High-pressure gas wells | 15,000 psi rated components, metal-to-metal seals, PR2 performance |
| Sour service / H2S wells | NACE MR0175 material class (EE/FF/HH), HH trims |
| Thermal / heavy oil wells | Temperature class X (180°C), Y (350°C special) |
| Workover & well intervention | VR plugs, BPV, back-pressure valves, valve repair kits |
| Well abandonment | Test plugs, isolation seals, pack-offs |
Product Types – Complete Wellhead Tools Range
| Product Category | Types Available | API 6A Certification |
|---|---|---|
| Casing head | Housing, spool, crossover spool, multi-stage | API 6A, PSL1-3G |
| Tubing head | Spool, adapter, mandrel hanger, slip hanger | API 6A, PSL1-3G |
| Test plugs | BOP test plug, wellhead cup tester, casing test plug | API 7-1 / API 6A |
| Back-pressure valves | One-way, two-way, retrievable with running tool | API 6A |
| VR plugs (valve-removal) | VR, VRR, VRT threads | API 6A |
| Wear bushings | Standard bowl, custom profile | API 6A |
| Seals & pack-offs | FS-type, P-type, BP-type, O-ring, rectangular, S-ring | Interchangeable |
| Valve parts | Gate, choke, safety valve assemblies and internals | OEM dimensions |
| Flanges & adapters | Blind flange, threaded connector, ring gaskets | API 6A Type 6B/6BX |
Why Choose SJ Petro for Your Wellhead Tools?
1. API 6A Monogrammed Quality – All products manufactured to API Spec 6A (latest edition) with full material traceability, pressure testing, and third-party witness available.
2. Full Material Class Range – From AA (standard carbon steel) to HH (highly corrosion-resistant for extreme H2S/CO2 service). We also offer stainless steel overlay or solid stainless trims for CC class and above.
3. NACE MR0175 / ISO 15156 Compliance – For sour gas wells, all wetted components available in EE, FF, or HH material classes with full certification.
4. Interchangeability – Our seal rings (FS, P, BP types), valve parts, and VR plugs are manufactured to international dimensions and thread profiles, fully interchangeable with major brands.
5. Custom Engineering – Non-standard pressure ratings, special thread connections (VAM, Hydril, Tenaris), and bespoke bowl profiles available on request.
6. Fast Delivery – Standard wellhead tools stocked for 2,000–5,000–10,000 psi ranges. Lead time: 4–8 weeks for standard items, 10–14 weeks for custom specifications.
7. 15-Year Spares Availability – We guarantee spares for all wellhead tools for 15 years after delivery – seal kits, valve parts, and specialty plugs.
8. Global Service Support – Technical assistance available 24/7 via phone, email, or on-site visit. Installation and maintenance training provided.
Frequently Asked Questions (FAQ)
Q1: What API specifications do your wellhead tools meet?
All our wellhead tools are manufactured to API Spec 6A (latest edition) – covering casing heads, tubing spools, hangers, test plugs, BPVs, VR plugs, wear bushings, and seals.
Q2: What pressure ratings are available?
From 2,000 psi to 20,000 psi working pressure, matching API 6A flange classes (2M, 3M, 5M, 10M, 15M, 20M).
Q3: What is the difference between PSL 1, 2, 3, and 3G?
PSL defines product specification level. PSL1 is standard service. PSL2 adds additional material and testing requirements. PSL3 / PSL3G includes stringent design validation and documentation for critical service. We supply all levels.
Q4: How do I choose the correct material class (AA to HH)?
-
AA/BB – standard carbon steel for non-corrosive service
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CC – stainless steel for mildly corrosive fluids
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DD/EE – for moderate H2S/CO2 (NACE MR0175)
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FF/HH – for severe H2S, CO2, and high chlorides
Our engineers can recommend based on your well fluid analysis.
Q5: Can I replace the seals on my existing wellhead with your products?
Yes. Our FS-type, P-type, BP-type, rectangular, O-ring, and S-ring seals are manufactured to international dimensions – fully interchangeable with major brands' products.
Q6: What is a VR plug, and when do I need it?
A VR plug (valve-removal plug) allows you to remove a gate valve from a live wellhead without killing the well. Essential for valve repair or replacement on producing wells.
Q7: Do you provide running tools for BPVs and test plugs?
Yes. Every back-pressure valve, test plug, and wear bushing includes a matching running and retrieving tool – no separate purchase needed.
Q8: Are your wellhead tools suitable for offshore use?
Absolutely. We offer marine-grade corrosion protection, stainless steel trim options, and all temperature classes suitable for offshore platforms and sub-sea applications.
Q9: What is your lead time for API 6A wellhead tools?
Standard stocked items (2,000–10,000 psi, AA/BB material class): 4–8 weeks. Custom specifications (higher pressure, special materials): 10–14 weeks.
Q10: Do you provide third-party witnessing and certification?
Yes. We can arrange ABS, DNV, or Lloyd’s witnessing of pressure tests and material verification. Full mill test reports (MTRs) and NACE certificates provided.
Q11: Can you supply valve repair parts for non-SJ Petro wellheads?
Yes – provided you supply the OEM part number or drawings. Many gate valve and choke valve parts are interchangeable. We will confirm compatibility before quoting.
Q12: What is the warranty on wellhead tools?
18 months from shipment or 12 months from commissioning, whichever occurs first. Covers material and workmanship defects. Extended warranty available for critical service applications.
