Wear-Resistant Acid Fracturing Drilling Hoses: Core Equipment for Fluid Transport Under Extreme Cond

 

In oil and shale gas acid fracturing operations, traditional ordinary delivery hoses constantly face multiple challenges: the strong corrosion of high-concentration acid-based fracturing fluids rapidly erodes the inner rubber layer; the large amount of quartz sand and ceramsite mixed in the fracturing fluid continuously erodes the pipe wall; coupled with the high-pressure impact and dragging wear at the operation site, ordinary hoses often develop bulges, leaks, and outer layer wear after only a few dozen hours of use. Frequent replacements not only slow down the drilling operation but may also cause on-site safety hazards. The emergence of wear-resistant acid fracturing drilling hoses specifically solves these industry pain points. Through a special material structure design, it simultaneously possesses three core properties: strong wear resistance, resistance to strong acids and alkalis, and high-pressure resistance. It can operate stably for extended periods under the extreme conditions of acid fracturing, becoming a core and reliable piece of equipment for fluid transport at drilling operations.

 

 

The performance advantage of this hose stems from its multi-layer composite structure design, which has been extensively validated in the field. The inner rubber layer uses a highly wear-resistant special polymer material, capable of withstanding long-term immersion in highly corrosive acidic liquids such as high-concentration hydrochloric acid and hydrofluoric acid, and resisting the continuous erosion of high-speed flowing abrasive particles in fracturing fluid. Its wear resistance far exceeds that of ordinary rubber inner layers. The middle reinforcing layer employs a multi-layered, cross-wound high-strength special steel wire structure, combined with a full-flow, no-reduction-diameter design, allowing the hose to stably withstand ultra-high working pressures of up to 15,000 Psi, without structural deformation or bursting under high-pressure pulse impact. The outer layer uses weather-resistant, tear-resistant special synthetic rubber, capable of withstanding dragging of gravel, sun exposure, and low-temperature freeze-thaw cycles in the field. Even in frigid environments of -29°C, it maintains good flexibility and will not crack due to hardening.

 

 

The large-scale application of wear-resistant acid-resistant drilling hoses brings significant benefits to drilling operations from multiple dimensions. In terms of safety, the significantly improved explosion-proof, wear-resistant, and corrosion-resistant properties of the hose effectively reduce the risk of sudden leaks and pipe bursts during operations, lowering the pressure on on-site safety management and avoiding equipment corrosion and personnel injury risks caused by fluid leaks. In terms of efficiency, the extended continuous service life increases the operating time of a single hose from tens of hours to hundreds of hours, drastically reducing the frequency of drilling stoppages for hose replacements and significantly increasing the effective operating time of the entire fracturing unit, thus shortening the well completion cycle for a single well. In terms of cost, although the purchase cost of a single wear-resistant acidizing drilling hose is higher than that of ordinary hoses, the cost per unit operating time is significantly lower. It also reduces labor and hoisting costs associated with frequent hose replacements, resulting in substantial overall cost savings for drilling projects in the long run.