China's first PSL 4S grade ultra-deepwater high-temperature high-pressure subsea wellhead system. Rated to 3,000m water depth and 15,000 psi, with dual certification from Bureau Veritas (BV) and China Classification Society (CCS) — filling a key technology gap for domestic deepwater oil and gas development. 国内首套 PSL 4S 级别超深水高温高压水下井口系统。额定水深 3,000 米，工作压力 15,000 psi，通过法国船级社 BV 与中国船级社 CCS 双认证，填补了国内深水油气开发关键技术空白。
In a May 2026 report, Bureau Veritas (BV) detailed its full-process certification of a domestically developed PSL 4S ultra-deepwater subsea wellhead system — covering design review, critical forging material certification and re-verification, factory inspection, onshore simulation testing, and sea trials. Rated to 3,000 m water depth and 15,000 psi (−29 to 178 °C), with 3,000,000 lb casing-suspension capacity and 5.25 million lb-ft bending strength, the system fills a domestic technology gap for 3,000 m-class oil & gas wellhead equipment previously dominated by international suppliers. 2026 年 5 月，法国船级社 BV 发文详述其对一套国产 PSL 4S 级超深水水下井口系统的全过程认证——涵盖设计审查、关键锻件材料认证与再验证、工厂检验、陆地模拟试验及海上试验。该系统额定 3,000 米水深、15,000 psi（−29~178℃），套管悬挂载荷 300 万磅、抗弯强度 525 万磅·英尺，填补了此前由国际供应商主导的 3,000 米级油气井口装备国内技术空白。
Read Bureau Veritas' report阅读必维 BV 报道FEODE's ultra-deepwater subsea wellhead system and its running tools are independently classed by Bureau Veritas (BV) and China Classification Society (CCS). Click any certificate to view it full size. 远东超深水水下井口系统及配套操作工具，经法国船级社 BV 与中国船级社 CCS 独立认证。点击任一证书可查看大图。
Conventional offshore subsea wellhead system for shallow and mid-water programmes. 30″ conductor head with 18-3/4″ high-pressure wellhead, supporting full casing-hanger and seal-assembly stack. 适用于浅水及中等水深项目的常规海上水下井口系统。30″ 导管头配 18-3/4″ 高压井口头，支持完整套管悬挂器与密封总成组合。
Ultra-deepwater HPHT flagship. 36″ conductor head with 18-3/4″ wellhead rated 103.5 MPa. PSL 4S grade — the highest product specification level under API 17D. 超深水高温高压旗舰产品。36″ 导管头配 18-3/4″ 井口头，额定 103.5 MPa。PSL 4S 级别（API 17D 最高产品规格）。
China's First PSL 4S Grade国内首套 PSL 4S 级别
The first domestically developed subsea wellhead system at API 17D PSL 4S — the highest product specification level — filling a critical technology gap for China's ultra-deepwater oil and gas development.国内首套自主研发的 API 17D PSL 4S 级别水下井口系统，PSL 4S 是 API 17D 标准下最高产品规格，填补国内超深水油气开发关键技术空白。
BV + CCS Dual CertificationBV + CCS 双船级社认证
Certified by both Bureau Veritas (France) and China Classification Society (CCS), the FE-15 system meets the most rigorous third-party verification for offshore deepwater equipment.通过法国船级社 BV 与中国船级社 CCS 双重认证，FE-15 系统满足海上深水装备最严格的第三方验证标准。
Coupled Dynamics Modelling耦合动力学建模
Developed in partnership with Professor Xu Liangbin's research team at Sun Yat-sen University — the "Platform–Riser–Wellhead" coupled dynamics model underpins the structural design validation for ultra-deepwater applications.联合中山大学许亮斌教授团队研发"平台-隔水管-井口"耦合动力学建模，为超深水应用的结构设计验证提供理论支撑。
Industry-Leading Hanging Capacity行业领先悬挂能力
FE-15 single-layer casing hanging capacity reaches 3.0 MM·lbs (1,360.8 T), extending domestic capability to ultra-deepwater HPHT applications.FE-15 单层套管悬挂能力达 3.0 MM·lbs（1,360.8 T），将国内能力延伸至超深水高温高压应用领域。
Intellectual Property Portfolio知识产权布局
Multiple invention patents, utility model patents, and published technical papers — a fully protected technology stack developed entirely in-house.多项发明专利和实用新型专利和公开技术论文，完全自主研发的知识产权完整布局。
Manufactured at 31,948 m² Base惠州 31,948 m² 基地制造
Every wellhead system is manufactured and pressure-tested in-house at our Huizhou production base — full bore-to-finish quality control from raw material to finished product.全部水下井口系统在惠州生产基地自主制造与压力测试，从原材料到成品全流程质量管控。
Contact our engineering team for technical specifications or to discuss your project requirements. 联系我们的工程团队，获取技术规格或商讨您的项目需求。
Key Facts at a Glance关键事实速览 · Updated June 2026
| Systems系列 | FE-10 / FE-15 |
| FE-15 water depthFE-15 水深 | 3,000 m |
| Pressure rating压力额定 | 15,000 psi |
| Temperature rating温度额定 | −29 to 178 °C |
| Standard标准 | API 17D / PSL 4S |
| Classification船级社 | BV + CCS |
| 2026 field validation2026 现场验证 | Full installation-to-abandonment下入至弃井全流程 |
