Underbalanced Drilling Hose Type: UDG-SZ
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The underbalanced drilling hose is used for fluid delivery in unbalanced oil drilling. The drilling fluid may also contain nitrogen gas, industrial waste gas, air, the mixed gas of air and nitrogen, natural gas and more.
Features:
Temperature Range: Ⅱ level, -25 ~ +100 ℃
API Standard: 7K-ISO 0106
Fire Protection Requirements:
The normal hose structure satisfies standard SR6A standards and is able to maintain up to 5 minutes in a 704℃ fire. The outer cover can be equipped with a fire insulation layer of a glass fiber cloth, which satisfies SR6B advanced fire protection standards, and maintains up to 30 minutes in a 704℃ fire.
Flexibility Level: FSL3
Maximum Length: 70m
Production Length Tolerance: 6.4m or under ± 64 mm, above 6.4m ± 1％
Construction:
- Inner Layer: Industrial plastic
- Tube: Nitrile rubber or HNBR (hydrogenated butadiene-acrylonitrile rubber) with excellent oil and corrosion resistance, thermal insulation, gas permeation protection
- Reinforcement: High strength fabric cloth
- Skeleton Layer: High strength steel wire
- Cover: Chloroprene rubber, fire resistant, abrasive and oil resistant, ozone resistant, UV protection and anti-aging
UDG-SZ Technical Parameters:
| Code No. | I.D. (inch) (mm) | O.D. (inch) (mm) | Working Pressure (bar) (psi) | Test Pressure (bar) (psi) | Safety Pressure | MBR (Storage) (m) | MBR (Operation) (m) | Weight (Kg/m) | Max. Length (m) | |||||
| UDG-SZ-51×34.5 | 2 | 51 | 4.17 | 106 | 345 | 5,000 | 690 | 10,000 | 2.5 | 0.8 | 0.9 | 10 | 70 | |
| UDG-SZ-64×34.5 | 2.5 | 64 | 4.6 | 118 | 345 | 5,000 | 690 | 10,000 | 2.5 | 0.9 | 1.0 | 16 | 70 | |
| UDG-SZ-64×51.7 | 2.5 | 64 | 5.35 | 136 | 517 | 7,500 | 1,034 | 15,000 | 2.5 | 1.0 | 1.2 | 23 | 70 | |
| UDG-SZ-76×34.5 | 3 | 76 | 5.28 | 134 | 345 | 5,000 | 690 | 10,000 | 2.5 | 1.0 | 1.2 | 18 | 70 | |
| UDG-SZ-76×51.7 | 3 | 76 | 5.98 | 152 | 517 | 7,500 | 1,034 | 15,000 | 2.5 | 1.1 | 1.3 | 32 | 70 | |
| UDG-SZ-89×34.5 | 3.5 | 89 | 5.75 | 138 | 345 | 5,000 | 690 | 10,000 | 2.5 | 1.2 | 1.4 | 22 | 70 | |
| UDG-SZ-89×51.7 | 3.5 | 89 | 6.57 | 167 | 517 | 7,500 | 1,034 | 15,000 | 2.5 | 1.3 | 1.5 | 37 | 70 | |
| UDG-SZ-102×34.5 | 4 | 102 | 6.8 | 173 | 345 | 5,000 | 690 | 10,000 | 2.5 | 1.3 | 1.5 | 35 | 70 | |
| UDG-SZ-102×51.7 | 4 | 102 | 7.08 | 168 | 517 | 7,500 | 1,034 | 15,000 | 2.5 | 1.4 | 1.6 | 41 | 70 | |
| UDG-SZ-127×34.5 | 5 | 127 | 8.11 | 206 | 345 | 5,000 | 690 | 10,000 | 2.5 | 1.5 | 1.6 | 54 | 70 | |
| UDG-SZ-127×51.7 | 5 | 127 | 8.66 | 220 | 517 | 7,500 | 1,034 | 15,000 | 2.5 | 1.5 | 1.7 | 68 | 70 | |
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