Fracturing flexible hose

Fracturing flexible hoses and hose assemblies

Application

Fracturing flexible hoses are primarily used in oil and gas field acidizing and hydraulic fracturing operations to convey high-pressure fluids and provide flexible connections between fracturing units, high- and low-pressure manifolds, distribution skids, and wellhead equipment. They are suitable for high-pressure delivery of sand‑laden and acid‑based fracturing fluids, offering a reliable pipeline solution for reservoir stimulation and significantly improving fluid flow conditions to enhance well productivity.

Hose structure

1. Lining Layer: A synthetic rubber lining is employed to provide wear and acid resistance, effectively resisting the corrosive attack of hydrochloric acid, fracturing fluids, and other aggressive media, thereby ensuring stable fluid conveyance.

2. Inner Lining Wear‑Warning Layer: A white, wear‑resistant rubber is used as the inner lining’s wear‑warning layer. When the lining wears thin, this layer becomes exposed in advance, enabling early detection of potential hazards and helping to prevent the risk of medium leakage.

3. Pressure‑bearing carcass layer: Made of high‑strength steel wire rope and formed through a specialized winding process, this layer serves as the core structure that withstands high‑pressure loads, ensuring the safe conveyance of high‑pressure fluids during fracturing operations.

4. Fire‑retardant and flame‑resistant layer: Utilizing glass fiber as the fire‑retardant and flame‑resistant layer, it delivers outstanding fire‑resistance and flame‑retardant performance, enabling effective response to unexpected fires at well sites and enhancing operational safety redundancy.

5. Outer Wear‑Warning Layer: A red, wear‑resistant rubber is used as the outer wear‑warning layer. When the outer protective structure wears down, the red layer becomes exposed, providing a clear visual indication to prompt maintenance and replacement, thereby extending the overall service life of the hose.

6. Outer Protective Layer: Made from chloroprene rubber, this layer offers multiple protective properties, including flame retardancy, abrasion resistance, oil resistance, ozone‑aging resistance, and UV resistance, ensuring reliable long‑term performance under demanding outdoor conditions.

7. Protective Sheath: The outer protection of the hose can be customized according to customer requirements, with options such as stainless steel armor or plastic helical sleeves, further enhancing impact resistance and wear resistance to meet the demands of various operating environments.

8. End fittings: Made from high-strength alloy steel, the end‑connection options include flanged joints, hammer‑on couplings, API 16A hubs, Grayloc hubs, and other standard interfaces, meeting the requirements for rapid connection across various types of equipment.

Fire Protection Requirements

The hose as a whole is designed to be fire‑resistant and flame‑retardant, with key structural layers exhibiting fire‑proof properties, thereby meeting the fire‑safety requirements of oil and gas field operations and reducing the risk of hose failure under fire‑induced conditions.

Applicable medium

Fracturing fluids, proppants, hydrochloric acid, liquid carbon dioxide, and other commonly used media in fracturing operations.

Temperature range

-35°C to 100°C, enabling operation under a wide range of temperature conditions in field applications within oil and gas fields, and meeting operational requirements across different seasons and regions.

Product Advantages of High-Pressure Flexible Fracturing Hoses

Hardcore Performance · Safe and Reliable

Ultra-high-pressure pressure-bearing performance, tailored to demanding fracturing conditions.

High-pressure flexible fracturing hoses are manufactured in strict compliance with API 7K and API 16C petroleum industry standards. They feature a multi‑layer, high‑strength steel wire helical reinforcement structure, offering a full range of pressure ratings to meet all high‑pressure operating conditions, with stable working pressures and a high burst safety factor. The products have undergone tens of thousands of high‑pressure pulse fatigue tests, demonstrating exceptional resistance to pressure shocks and high‑frequency fluctuations, thereby supporting large‑scale, high‑displacement, long‑duration continuous sand‑injection fracturing operations in oilfields and effectively eliminating the risk of sudden pipe bursts.

The hose features progressive failure‑warning capabilities: under high‑pressure and abrasive conditions, it first emits a micro‑leakage alert, eliminating the risk of sudden rupture. This significantly enhances wellsite operational safety, representing a marked improvement over conventional rigid tubing.

Exceptionally wear- and corrosion-resistant, compatible with complex fracturing fluids.

The inner liner is made of an ultra‑high‑wear‑resistant polymer material, offering exceptional resistance to erosion and sand abrasion. It can reliably convey proppant‑laden fracturing fluids with high sand concentrations over extended periods, with impact‑and‑abrasion resistance far surpassing that of conventional rubber hoses. The hose exhibits all‑round compatibility with acid‑based, water‑based, oil‑based, and foam‑based fracturing fluids, while also resisting acids and alkalis, corrosion, and hydrogen sulfide attack, making it suitable for a wide range of operational conditions, including acidizing, hydraulic fracturing, grouting, and circulation.

The outer layer is formulated with a weather‑resistant specialty rubber, offering excellent resistance to aging, tear strength, and extreme temperatures, making it suitable for harsh oilfield conditions such as deserts, mountainous terrain, and open‑air operations, while ensuring stable performance in all weather conditions.

Stable sealing structure, eliminating the risk of leakage.

The integral one-piece molded structure ensures uniform stress distribution in the steel‑wire reinforcement layer, resulting in controlled deformation under high pressure and a low bulging rate. An integrated crimping process between the fitting and the pipe body eliminates issues such as fitting disengagement, pipe pull‑out, and leakage, while maintaining long‑lasting, stable sealing even under dynamic vibration conditions—effectively addressing the industry’s longstanding pain points of loose and leaky conventional pipeline connections.

Flexible and efficient · Cost reduction and efficiency gains

Highly flexible and easy to install, significantly boosting construction efficiency.

Compared with traditional steel rigid pipes, this product boasts superior bendability and a small bending radius, making it well-suited for tight wellsite spaces, cluster wells, and densely packed equipment layouts. It requires no welding or custom‑made elbows; instead, it employs quick‑connect fittings for easy assembly and disassembly, enabling rapid deployment and significantly reducing the time required for relocation, installation, dismantling, and site changes.

The hose is designed to adapt to the equipment’s high-frequency vibrations, absorbing pump‑truck-induced vibration and misalignment to prevent pipeline fatigue failure and joint leakage, thereby enhancing dynamic construction stability.

Lightweight and reusable, with lower full‑cycle costs.

The product is lightweight and rollable for compact storage, taking up minimal space and significantly reducing warehousing and transportation costs. It requires no heavy lifting equipment; installation and deployment can be completed quickly by hand, effectively lowering both construction‑equipment rental and labor expenses.

It is resistant to bending and fatigue, can be repeatedly reused, and boasts a long service life. Compared with traditional steel pipelines, it significantly reduces overall replacement costs, maintenance expenses, and productivity losses, thereby delivering substantial cost savings and efficiency gains for oilfield projects.

Large flow diameter and low resistance, enhancing operational productivity.

The inner wall is smooth, the flow path remains stable, and fluid resistance is low, resulting in minimal pressure‑drop losses during fracturing operations, high pump efficiency, and consistent wellhead pressure and flow rate—thereby enhancing reservoir stimulation performance. With fewer pipeline‑joining joints, the risk of leakage is reduced, making operations more environmentally friendly, safer, and more efficient.

Customizable across all scenarios, compatible with various oil and gas projects.

Supports custom fabrication to multiple specifications for pressure, bore size, and length, and can be configured with various connection types, including integral swivel joints, flanges, and rotary unions. Equipped with an optimized design that prevents torsion, abrasion, and sand blockage, it is suitable for a wide range of high-pressure fracturing operations, including onshore unconventional oil and gas, horizontal wells, deep wells, and offshore platforms.

Product Philosophy: High-Voltage Safety · Flexible & Efficient · Durable & Worry-Free · Universally Compatible