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Rotary Drilling Hose High Pressure Resistance Heavy Duty Reinforcement Long Service Life
Rotary Drilling Hose High Pressure Resistance Heavy Duty Reinforcement Long Service Life
Introduction
Rotary Drilling Hose is a high-pressure flexible hose designed for fluid transfer in rotary drilling systems and other demanding oilfield applications. It is primarily used to convey drilling mud, water-based fluids, oil-based fluids, and other compatible drilling media between stationary and moving components of a drilling system.
The hose features an oil-resistant and abrasion-resistant synthetic rubber inner tube, multiple layers of high-strength textile or steel-wire reinforcement, and a durable external cover. Material selection and reinforcement structure are configured according to working pressure, temperature, fluid characteristics, installation length, bending requirements, and operating environment.
Rotary Drilling Hose must withstand repeated pressure cycles rather than only static pressure conditions. During drilling operations, fluid pressure fluctuates as pumps start, stop, change operating conditions, or respond to variations in downhole resistance.
Connection assemblies can be supplied according to customer equipment interfaces. End fittings may be manufactured from suitable steel materials and configured with threaded, flanged, or other connection arrangements according to technical specifications.
Case Study: High Pressure Rotary Drilling Hose Installation for an Offshore Jack Up Drilling Rig
An offshore drilling contractor operating a jack-up drilling rig required replacement of several high-pressure flexible connections within its drilling fluid transfer system. The existing hose assemblies had experienced progressive external wear caused by repeated movement, vibration, and contact with adjacent equipment.
Hongruntong Marine supplied Rotary Drilling Hose assemblies manufactured according to the customer's required bore size, working pressure, length, and end-connection configuration. The hose construction incorporated reinforced pressure-resistant layers with a durable outer cover selected for the operating environment.
Before installation, the routing path was checked to identify potential contact points and ensure the hose could operate within its specified minimum bend radius. After installation, the hose assemblies were subjected to inspection and pressure-testing procedures before being placed into normal service.
Specification
Name
Rotary Drilling Hose
Tube
Modified nitrile, black, specifically engineered for the effective handling of abrasive, corrosive substances, and oil drilling mud.
Reinforcement
Composite construction featuring multiple layers of textile fabric and steel cable, with a layer of rubber positioned between the cable layers for enhanced performance.
Cover
Black modified nitrile with a specially engineered ultra-abrasion cover, designed to provide exceptional resistance to abrasion, corrosion, cutting, gouging, oil, and weather conditions.
Coupling
Swaged couplings, full range of couplings available, such as hammer union, flanges, hubs, male thread etc.
Certification
API 7K-0376/ISO14693
Temperature
-40°C to +82°C (-104°F to +180°F)
Options
Accessories such as safety clamps and hose lift eyes are available upon request.
Test
Each hose is tested at 22500psi for 15 minutes. Pressure test graph, test certificate and letter of conformance are issued for each hose.
Technical Specifications Table
Model
I.D. (inch)
I.D. (mm)
O.D. (mm)
W.P. mpa(psi)
T.P. mpa(psi)
Weight (kg/m)
B.R. (mm)
HMRDH-Grade A
1 1/2
38
51
11(1500)
22(3000)
2.19
560
HMRDH-Grade A
2
51
65
11(1500)
22(3000)
3.03
900
HMRDH-Grade A
2 1/2
64
78
11(1500)
22(3000)
3.95
1200
HMRDH-Grade B
1 1/2
38
52
14(2000)
28(4000)
2.39
560
HMRDH-Grade B
2
51
66
14(2000)
28(4000)
3.25
900
HMRDH-Grade B
2 1/2
64
79
14(2000)
28(4000)
4.37
1200
HMRDH-Grade B
3
76
98
14(2000)
28(4000)
7.76
1200
HMRDH-Grade B
3 1/2
89
113
14(2000)
28(4000)
9.95
1300
HMRDH-Grade B
4
102
127
14(2000)
28(4000)
12.43
1400
HMRDH-Grade B
5
127
153
14(2000)
28(4000)
15.25
1500
HMRDH-Grade B
6
152
178
14(2000)
28(4000)
18.71
1600
HMRDH-Grade C
1 1/2
38
55
28(4000)
56(8000)
3.65
560
HMRDH-Grade C
2
51
69
28(4000)
56(8000)
5.15
900
HMRDH-Grade C
2 1/2
64
88
28(4000)
56(8000)
7.86
1200
HMRDH-Grade C
3
76
105
28(4000)
56(8000)
13.12
1200
HMRDH-Grade C
3 1/2
89
121
28(4000)
56(8000)
16.79
1300
HMRDH-Grade C
4
102
137
28(4000)
56(8000)
21.7
1400
HMRDH-Grade C
5
127
164
28(4000)
56(8000)
28.46
1500
HMRDH-Grade C
6
152
197
28(4000)
56(8000)
44.64
1600
HMRDH-Grade D
2
51
73
25(5000)
70(10000)
6.46
900
HMRDH-Grade D
2 1/2
64
91
35(5000)
70(10000)
10.75
1200
HMRDH-Grade D
3
76
107
35(5000)
70(10000)
14.35
1200
HMRDH-Grade D
3 1/2
89
123
35(5000)
70(10000)
18.77
1300
HMRDH-Grade D
4
102
139
35(5000)
70(10000)
23.16
1400
HMRDH-Grade D
5
127
171
35(5000)
70(10000)
38
1500
HMRDH-Grade D
6
152
200
35(5000)
70(10000)
48.43
1600
HMRDH-Grade E
2
51
80
52(7500)
104(15000)
10.37
1000
HMRDH-Grade E
2 1/2
64
101
52(7500)
104(15000)
17.88
1200
HMRDH-Grade E
3
76
120
52(7500)
104(15000)
24.45
1200
HMRDH-Grade E
3 1/2
89
135
52(7500)
104(15000)
29.33
1300
HMRDH-Grade E
4
102
148
52(7500)
104(15000)
34.24
1400
HMRDH-Grade E
5
127
189
52(7500)
104(15000)
55.39
1500
HMRDH-Grade F
2
51
82
70(10000)
105(15000)
11.81
1000
HMRDH-Grade F
2 1/2
64
104
70(10000)
105(15000)
20.46
1300
HMRDH-Grade F
3
76
129
70(10000)
105(15000)
32.74
1300
HMRDH-Grade F
3 1/2
89
144
70(10000)
105(15000)
39.43
1400
HMRDH-Grade F
4
102
158
70(10000)
105(15000)
45.73
1500
HMRDH-Grade G
2
51
92
105(15000)
157(22500)
17.37
1000
Key Features
High Pressure Reinforced Construction
The pressure-containment capability is determined by internal tube, reinforcement layers, and overall construction. For high-pressure drilling service, the hose features multiple reinforcement layers that distribute internal pressure across the hose wall and reduce excessive radial expansion.
Reinforcement is arranged to provide a controlled balance between pressure resistance and flexibility. During drilling operations, pressure fluctuations create additional stress on the hose structure. Proper reinforcement helps maintain dimensional stability during pressure cycles.
Abrasion Resistant and Durable Outer Cover
Drilling environments expose flexible hoses to mechanical conditions including movement, contact with structures, mud, water, oil, dust, and outdoor exposure. The outer cover provides protection for internal reinforcement and pressure tube.
Abrasion-resistant rubber compounds are selected according to environmental conditions. The external surface can be inspected visually during routine maintenance to identify cuts, deep abrasion, exposed reinforcement, or unusual surface changes.
Controlled Flexibility and Resistance to Repeated Movement
Rotary Drilling Hose provides flexibility within high-pressure fluid-transfer systems, accommodating controlled movement between connected equipment sections. Flexibility is carefully balanced with structural strength.
The hose construction provides controlled bending capability within the specified minimum bend radius. Correct positioning allows the hose to flex naturally rather than concentrating mechanical stress in localized areas.
Fluid Compatibility and Long-Term Service Performance
Inner tube material is selected according to the conveyed medium. Appropriate rubber compounds provide resistance to fluid and maintain physical properties required for pressure service. Temperature considerations influence rubber flexibility, pressure performance, and aging characteristics.
Long-term performance depends on operating practices, including proper installation and routine inspection. With appropriate material selection and maintenance, Rotary Drilling Hose provides durable performance in demanding industrial environments.
Applications
Land Based Oil and Gas Drilling Rigs
Suitable for land-based drilling rigs where high-pressure fluid transfer and flexible equipment connections are required. Used in drilling mud circulation systems at locations where equipment movement or vibration makes rigid pipe connections unsuitable.
Offshore Drilling Platforms and Jack Up Rigs
Used in flexible high-pressure connections within drilling fluid systems on offshore installations. These environments experience equipment vibration, limited access, salt-containing atmospheric conditions, and restricted maintenance windows.
Well Servicing and Drilling Support Systems
Applied to selected well-servicing and drilling support systems requiring flexible high-pressure fluid connections. These applications may involve temporary or semi-permanent equipment arrangements where connection flexibility is necessary.
Why Choose Hongruntong Marine
More Than 30 Years of Manufacturing Experience
Hongruntong Marine has over 30 years of manufacturing experience in marine and industrial rubber products. This experience supports practical understanding of rubber material selection, reinforcement structures, hose assembly, metal fitting integration, and quality control requirements.
Customized Hose Construction and Connection Configuration
Different drilling systems have different equipment interfaces and operating conditions. Hongruntong Marine provides hose assemblies according to defined technical parameters including hose bore size, overall length, pressure requirement, reinforcement structure, rubber material, temperature range, and end fitting configuration.
Material and Reinforcement Selection Based on Operating Conditions
Focuses on selecting hose construction according to actual service requirements. The conveyed fluid, pressure, temperature, mechanical loading, environmental exposure, and expected movement all influence material and reinforcement selection.
Quality Control and Technical Support Throughout the Supply Process
Quality control involves dimensional inspection, material control, reinforcement positioning, fitting assembly, pressure testing, and final inspection. Technical communication supports customers with product specifications, dimensional information, installation considerations, and documentation.
FAQ
1. What is the main function of a Rotary Drilling Hose?
A Rotary Drilling Hose is used as a flexible high-pressure connection for transferring drilling fluids or other compatible fluids within drilling systems. It allows connected equipment to accommodate controlled movement and vibration while maintaining pressure containment.
2. What sizes are available for Rotary Drilling Hose?
Available bore size and overall length can be manufactured according to customer equipment requirements. Common engineering parameters include nominal bore, hose length, working pressure, temperature range, and end-connection dimensions.
3. Can the hose be supplied with customized end fittings?
Yes. Rotary Drilling Hose assemblies can be configured with suitable end fittings according to equipment interface. Flanged and other connection arrangements can be considered according to technical specification.
4. How should Rotary Drilling Hose be installed to achieve reliable service life?
The hose should be installed without twisting and should operate within its specified minimum bend radius. Sharp edges, uncontrolled abrasion, excessive tensile loading, and unsupported hose weight should be avoided.
5. Can Rotary Drilling Hose be reused after removal from equipment?
Reusability depends on hose construction, operating history, inspection results, and customer maintenance procedures. A removed hose should not automatically be considered suitable for reuse simply because it appears visually intact.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
1990
Total Annual:
7000000-1100000
Employee Number:
300~500
Ecer Certification：
Verified Supplier
HONGRUNTONG MARINE Company Introduction
Founded in 1990 and headquartered in Beijing, China, HONGRUNTONG MARINE has grown from a local production factory into a world-leading supplier of marine products and solutions after more than 30 years of deep cultivation and development. We are committed to ...
HONGRUNTONG MARINE Company Introduction
Founded in 1990 and headquartered in Beijing, China, HONGRUNTONG MARINE has grown from a local production factory into a world-leading supplier of marine products and solutions after more than 30 years of deep cultivation and development. We are committed to ...
