Description

Rotary Drilling Hose with Multiple Layers of High Tensile Steel Wire Reinforcement

 

Drilling hose(rotary hose)made according to API 7K spec, applies for flexible hose connection between the top of oil drilling stand pipe and vertical moved swivel joint in well drilling, well cementing, work-over and down-hole servicing operation. drilling hose is also used to adjust the installation mistake between drilling pipe line and stand pipe to avoid shake, sometimes to transfer high pressure oil and water base mud with the lowest aniline point of 60°C from the swivel pipe in high pressure, and down-hole operation high medium such as water, oil etc, drilling rotary hose can be used for prefect work too.

The details of rotary drilling hose:

  • Structure: it is composed of three parts: tube, reinforcement and cover.
    • Tube: high quality synthetic rubber, mainly NBR, which is resistant to abrasion, corrosion and oils.
    • Reinforcement: 2-8 layers of high tensile and high strength spiraled steel wire, making the hose work well in high pressure working conditions.
    • Cover: high quality synthetic rubber, mainly chloroprene rubber, making the hose resistant to abrasion, corrosion, cut, weather, ozone, aging and sunlight.
  • Working temperature: -30 °C to +82 °C.

Note: rotary drilling hose can be divided into five kinds according to the working pressure: grade A, grade B, grade C, grade D and grade E.

Application of rotary drilling hose:

  • It is mainly used for conveying water-based or oil-based mud and other fluids.
  • It is often used for oil fields, cement repairing, geological exploration and water conveyance for coal excavation.
Specification:
Inner Diameter
mm(in)		 51mm(2″)
Glass A B C D E F G
Operating Pressure 11 Mpa 14 28 35 52 70 105
Mpa(Psi) 1500 Psi 2000 4000 5000 7500 10000 15000
Test Pressure 22 28 56 70 104 105 157.75
Mpa(Psi) 3000 4000 5000 10000 15000 15000 22500
Connector Code TBG, LP, Unoin
Specification:
Inner Diameter
mm(in)		 64mm(2 1/2″)
Glass A B C D E F G
Operating Pressure 11 Mpa 14 28 35 52 70 105
Mpa(Psi) 1500 Psi 2000 4000 5000 7500 10000 15000
Test Pressure 22 28 56 70 104 105 157.75
Mpa(Psi) 3000 4000 5000 10000 15000 15000 22500
Connector Code TBG, LP, Unoin
Specification:
Inner Diameter
mm(in)		 76mm(3″)
Glass A B C D E F G
Operating Pressure 11 Mpa 14 20 35 52 70 105
Mpa(Psi) 1500 Psi 2000 4000 5000 7500 10000 15000
Test Pressure 22 28 56 70 104 105 157.75
Mpa(Psi) 3000 4000 5000 10000 15000 15000 22500
Connector Code TBG, LP, Unoin
Specification:
Inner Diameter
mm(in)		 89mm(3 1/2″)
Glass A B C D E F G
Operating Pressure 11 Mpa 14 28 35 52 70 105
Mpa(Psi) 1500 Psi 2000 4000 5000 7500 10000 15000
Test Pressure 22 28 56 70 104 105 157.75
Mpa(Psi) 3000 4000 5000 10000 15000 15000 22500
Connector Code TBG, LP, Unoin
Specification:
Inner Diameter
mm(in)		 102mm(4″)
Glass A B C D E F G
Operating Pressure 11 Mpa 14 28 35 52 70 105
Mpa(Psi) 1500 Psi 2000 4000 5000 7500 10000 15000
Test Pressure 22 28 56 70 104 105 157.75
Mpa(Psi) 3000 4000 5000 10000 15000 15000 22500
Connector Code TBG, LP, Unoin
Specification:
Inner Diameter
mm(in)		 127mm(5″) 152mm
Glass B C D A B C D
Operating Pressure 14 28 35  11 Mpa 14 28 35
Mpa(Psi) 2000 4000 5000 1500 Psi 2000 4000 5000
Test Pressure 28  56 22 28 56 70
Mpa(Psi) 4000 5000 70 3000 4000 5000 10000
10000
Connector Code TBG, LP, Unoin