API17K Jumper Hose: A Key Flexible Connection Solution for Offshore Oil and Gas Engineering

As a core equipment in the field of offshore oil and gas development, the API17K jumper hose is a key flexible connection component for fluid transportation between offshore platforms, trestles, and subsea production systems. Its main applications cover scenarios such as cross - platform medium transfer in offshore oil and gas field production systems, connection between subsea pipelines and platforms, pipeline upgrading in the renovation of old oil fields, and emergency repairs in extreme environments. In the comprehensive adjustment project of CNOOC's Ledong 22 - 1 gas field, this type of hose successfully achieved multi - medium transportation between the gas field trestle and the production platform, becoming the "lifeline" for ensuring efficient deep - sea oil and gas gathering and transportation. With the advancement of offshore oil and gas development towards deep - water and ultra - deep - water areas, the API17K hose is increasingly widely used in scenarios such as dynamic riser systems and umbilical cable matching for subsea production systems, and has become an important flexible hub connecting offshore oil and gas production facilities.

 

In terms of structural design, the API17K jumper hose adopts a multi - layer composite reinforcement structure. From the inside out, it includes a medium - resistant inner rubber layer, a reinforcement layer, an impermeable layer, a buffer layer, and a weather - resistant outer rubber layer. The inner rubber layer uses a special hydrogenated nitrile butadiene rubber (HNBR) formula, which can resist the corrosion of various fluids such as crude oil, natural gas, and sulfur - containing media. The reinforcement layer adopts a composite structure of aramid fibers with high tensile strength and braided steel wires. Through the process of "spiral winding + axial braiding", it can bear a working pressure of more than 30MPa. The impermeable layer uses a metal - polymer composite film to effectively prevent the penetration of corrosive gases such as hydrogen sulfide. It is particularly noteworthy that the connection between the hose and the metal joint adopts an integral vulcanization embedding process. Through a specially designed serrated metal insert, it forms a molecular - level bond with the rubber layer, enabling the burst pressure of the joint part to reach more than 1.5 times that of the tube body, completely solving the industry problem of easy leakage in traditional mechanical connections. This structural design enables the hose to have both the pressure - bearing capacity of a rigid pipeline and the displacement compensation characteristics of a flexible material, and can adapt to an axial displacement of ±3 meters and an angular deflection of ±5 degrees of the offshore platform caused by wind and waves.

 

The core advantages of the API17K jumper hose lie in its extreme - environment adaptability and full - life - cycle reliability. At the material level, through special rubber formula technology and full - working - condition adaptable material composite technology, the product can be used for a long time in a marine salt - fog environment with a temperature range of - 40°C to 120°C and 100% relative humidity, and its hydrogen sulfide corrosion resistance meets the requirements of the NACE MR0175 standard. The API17K hose produced by Yuelong Technology successfully withstood the test of the super typhoon "Capricorn" with a scale of 17 in 2024 during its service in the Wenchang 13 - 2 oil field, and maintained its good sealing performance under the extreme working condition where the platform displacement reached 2.8 meters. In terms of technical certification, this product has passed the latest version of the API 17K:2020 standard certification and has obtained type approvals from multiple international classification societies such as CCS, DNV, and ABS. It is currently one of the few high - end flexible pipeline products in the world that simultaneously meet the requirements of ISO 13628 - 2 and API RP 17B specifications.

From the perspective of engineering application value, the API17K jumper hose has significant economic and safety benefits. Compared with traditional rigid pipelines, its modular design shortens the on - site installation period by more than 60%. The connection operation of a single hose can be completed within 4 hours, greatly reducing the cost of offshore construction. In terms of full - life - cycle cost, the designed service life of this hose is 25 years, and no structural maintenance is required during this period, reducing maintenance costs by 70% compared with metal pipelines. In terms of safety, the built - in armored fracture early - warning system of the product can monitor the damage status of the reinforcement layer in real - time. Coupled with the fire - resistant and flame - retardant outer rubber layer (which passes the API 17K Appendix D fire test), it can effectively prevent safety accidents caused by oil and gas leakage. At present, domestic API17K hoses have broken the monopoly of international brands and have been applied on a large scale in national - level projects such as Offshore Oil 981 and Blue Whale No.1. The product price is 30% - 40% lower than that of imported similar products, significantly improving the self - control ability of China's offshore oil and gas equipment industry chain.

 

With the acceleration of deep - sea resource development, the Letone API17K jumper hose is moving towards large - diameter (diameter ≥ 600mm) and ultra - high - pressure (working pressure ≥ 45MPa) directions, providing key data support for the digital operation and maintenance of offshore oil and gas fields. This high - end flexible pipeline, which integrates extreme - environment adaptability, structural reliability, and intelligent monitoring, will continuously promote the development of offshore oil and gas towards deeper, farther, and more complex areas, and become an important equipment support for ensuring national energy security.