High Strength Drilling Rubber Hose (Rotary Hose) Series

Drilling Rotary Hose is the flexible high pressure line that connects the top of the drilling riser (standpipe) to the vertically moving swivel, and the mud pump discharge line to the standpipe. It absorbs installation tolerance, isolates vibration and delivers water based or oil based mud at high pressure, with hydrogen sulfide (H2S) resistance for hostile well conditions.

Construction

Built up from an inner tube (or stainless steel armored inner tube), a carbon fiber reinforcement layer, a middle rubber layer, a steel wire reinforcement layer (steel chain wire reinforcement layer) and a carbon fiber outer cover. The composite structure keeps the hose dimensionally stable under pulsating pressure while remaining flexible at low temperature.

Product types: steel wire reinforced type and steel chain wire reinforced type.

Applications

• Rotary hose for flexible connection between the drilling riser top and the vertically movable swivel in oil drilling and mud delivery systems.
• Installed between the mud pump line and the riser to adjust installation error, simplify connection and isolate vibration.
• High pressure, large volume delivery of water based or oil based mud with a minimum aniline point of 66°C from rotary drilling equipment.
• Resistant to hydrogen sulfide corrosion; also suitable for downhole workover operations transferring water, oil and mud.

Key Features

• API Spec 7K class D design, working pressure from 1500PSI to 15000PSI (11MPa to 105MPa).
• Steel wire and steel chain wire reinforcement for high burst safety margin (test pressure up to 22500PSI).
• H2S resistant inner tube and abrasion resistant carbon fiber cover for oil based mud service.
• Minimum bending radius 1000mm to 1400mm, easy to route on the rig floor.
• Available with union, flange or hammer union couplings to match the standpipe and swivel connections.

Specifications

Applicable Standard

API Spec 7K, GB/T 24145-2009.

Why Choose Us

1. Products manufactured by factories designated by Sinopec and CNPC.
2. Raw materials are strictly tested and conform to API standards.
3. Experienced team selects the right pressure class and coupling for your rig.
4. One stop service from quotation to shipment, with export packing for long sea freight.
5. After sales tracking with one to one support for installation and maintenance.

Tell us your inner diameter, working pressure and end connection, and we will quote the matching rotary hose within 24 hours.