1、 Multi layer composite structure: designed specifically for extreme working conditions The oil drilling and production hose adopts a four layer reinforced structure to adapt to high-pressure, corrosive media, and complex geological environments underground Inner lining layer Resistant to hydrogen sulfide (H ₂ S) fluororubber (FKM) or ultra-high molecular weight polyethylene (UHMWPE), with a thickness of ≥ 4.0mm, acid and alkali (pH 1-14), and crude oil penetration (permeability ≤ 0.1g/m ² · h); Enhancement layer Double layer 316L stainless steel wire weaving (tensile strength ≥ 2500MPa), 54 °± 2 ° cross weaving, burst pressure ≥ 60MPa (API 16C standard); Compressive layer Spiral wound aramid fiber, resistant to negative pressure flattening (vacuum degree ≥ 0.1MPa); Outer protective layer Wear resistant NBR+polyester fiber weaving, thickness ≥ 3.0mm, resistant to rock impact (drop hammer test ≥ 50J) and UV aging (QUV 1500 hours without cracks). 2、 Dynamic pressure bearing and medium resistance performance Oil drilling and production hoses need to meet the extreme operational requirements of oil and gas wells: Pressure level Working pressure: 15~35MPa (static)/10~25MPa (dynamic), pulse test passed 1 million times (ISO 6803 standard); Temperature range -50 ℃~+150 ℃, short-term temperature resistance of 180 ℃ (API 7K specification); Corrosion resistance Tolerance to H ₂ S (concentration ≤ 500ppm), CO ₂, and high salinity formation water (TDS ≤ 300g/L); Bending performance Dynamic bending radius ≤ 6 times the pipe diameter (DN80 hose can be bent up to R480mm). Case: A shale gas well used a DN100 hose to transport fracturing fluid (pressure 28MPa) and operated continuously for 12 months without any malfunctions. 3、 Core application scenarios and industry pain point solutions Oil drilling and production hoses play a key role in the following scenarios: Drilling platform Transporting mud (density ≤ 2.5g/cm ³) and drilling fluid, anti-wear particle erosion (ASTM G65 test weight loss ≤ 0.5g); Fracturing operation Resistant to acidic fracturing fluid (pH 0.5-3.0) and proppant impact, with a pulse life exceeding industry standards by 30%; Deep sea oil extraction Covered with anti seawater corrosion polyurethane layer (salt spray resistance ≥ 2000 hours), suitable for a water depth of 3000 meters; Oil and gas gathering and transportation Anti static design (surface resistance ≤ 1 × 10 ⁶ Ω), compliant with ATEX explosion-proof certification. Benefit data: After a certain offshore platform adopted sulfur resistant hoses, the maintenance cycle was extended from 3 months to 18 months. 4、 International Certification and Safety Compliance Standards Oil drilling and production hoses need to pass three core certifications: API certification Compliant with API 16C (well control equipment) and API 7K (drilling equipment) dynamic pressure testing requirements; ISO standard Certified according to ISO 23936-2 (H ₂ S resistance test) and ISO 1436 (pulse fatigue); NOISH specification Meets MSHA 30 CFR § 56/57 mine safety and blast resistance standards. Hoses certified by DNV-GL, ABS, and CCS classification societies can cover onshore, offshore, and polar oil and gas field scenarios. 5、 Installation standards and full lifecycle management Key operational guidelines for extending the service life of hoses: Selection matching Select pressure level according to well depth (shallow well 15MPa/deep well ≥ 35MPa), and FKM material is preferred for acidic oil and gas fields; Installation restrictions Minimum bending radius ≥ 5 times the pipe diameter (DN50 hose ≥ 250mm) to avoid wire layer breakage;