13 5/8"-5000psi Drilling Spool 25CrNiMo Forged BOP Riser

Product Overview

The 13 5/8" 5000 PSI Drilling Spool is crafted from high-strength 25CrNiMo forged steel, specifically designed for Blowout Preventer (BOP) riser applications. Engineered for demanding high-pressure drilling operations, it provides exceptional mechanical integrity, corrosion resistance, and reliable well control. This spool enables secure fluid handling and precise integration with BOP systems, ensuring safe and efficient operation in both onshore and offshore drilling environments. Its robust construction and precision machining guarantee long-term durability under extreme conditions.

Technical Features

1. Pressure Rating: 2,000 – 20,000 PSI
2. Size Range: 2" to 4" (custom sizes available)
3. Material Class: AA – HH, forged high-strength alloy steel
4. Temperature Rating: –46°C to +121°C
5. Connection Type: Hammer union / flange / threaded / welded ends
6. Sealing Type: NBR, HNBR, or FKM seals for H₂S & CO₂ environments
7. Rotation Capability: Full 360° rotation, minimizing mechanical stress
8. Surface Treatment: Anti-corrosion coating for extended service life

Advantages

Allows smooth rotation to prevent pipeline twisting

High sealing reliability under fluctuating pressure

Compatible with standard API hammer unions and adapters

Compact, durable design suitable for onshore and offshore use

Easy assembly, inspection, and maintenance

Applications

1. Oilfield drilling and workover operations
2. Wellhead and choke manifold flowline systems
3. Fracturing, cementing, and acidizing units
4. High-pressure transfer lines for mud, gas, or cement
5. Testing and production facilities requiring flexible pipeline connections