GX-W1-2B1-2A1a-GF-9.58 PI ( 0.377”), 9.58mm, 2 SM+2 MM Optical Fiber
Applicable Well Types
1. Conventional Oil & Gas Wells
Adaptable Well Types: Ultra-deep vertical wells (depth ≤ 8000m), medium-to-high deviation directional wells (≤ 65°), ultra-deep cased wells, ultra-deep open-hole wells, high-friction and high-abrasion deep wells.
Typical Applications: Ultra-deep oil and gas exploration, ultra-deep well production dynamic monitoring, high-temperature deep well logging, high-friction ultra-deep well operation, permanent downhole monitoring.
2. Unconventional Oil & Gas Wells
Adaptable Well Types: Extra-long radius horizontal wells (horizontal section ≤ 2500m), deep shale gas wells, deep coalbed methane wells, deep tight oil & gas wells, high-temperature unconventional wells.
Typical Applications: Deep shale gas horizontal well fracturing monitoring, deep CBM well production monitoring, tight reservoir dynamic monitoring, high-temperature unconventional well monitoring.
3. Other Exploration & Engineering Wells
Adaptable Well Types: Medium-high temperature geothermal wells (≤ 200℃), ultra-deep hydrogeological wells, deep engineering monitoring wells, deep water injection wells, coal mine underground deep monitoring wells.
Typical Applications: Medium-high temperature geothermal resource monitoring, ultra-deep hydrological detection, deep well gas monitoring in coal mines, water injection profile monitoring, deep engineering well monitoring.
Strictly Inapplicable Scenarios
1.Wells deeper than 8000m: exceeds the mechanical safety margin.
2.Ultra-high temperature wells (> 200℃): causes insulation aging and performance failure.
3.Short-radius horizontal wells and sharp dogleg wells: not suitable for extreme bending.
4.Extremely severe H₂S/CO₂ corrosion environment without special anti-corrosion treatment.
5.Ultra-high pressure environment exceeding the rated pressure grade.
Selection Reference
Parameter |
Specification |
Applicable Well Condition |
Typical Well Type |
Fiber & Power Configuration |
2 single-mode (B1) + 2 multi-mode (A1a) fibers, photoelectric composite structure (integrated optical signal transmission + downhole tool power supply), GF standard, high-strength armored design |
Simultaneous downhole power supply & DTS/DAS optical signal transmission, bottomhole temperature ≤200℃, fiber reserve length >3‰, suitable for high-friction, high-tension ultra-deep downhole environment (≤8000m) |
Ultra-deep conventional oil & gas wells (≤8000m), deep shale gas horizontal wells, deep coalbed methane wells |
Temperature Resistance |
Rated temperature 200℃ (392℉), PI (polyimide) insulation layer, high-temperature resistance, no aging under 200℃ long-term operation, compatible with photoelectric composite structure |
Medium-high temperature downhole environment, bottomhole temperature ≤200℃, no ultra-high temperature (>200℃) environment,ultra-deep well (≤8000m) long-term photoelectric dual transmission |
Ultra-deep oil & gas wells (≤8000m), high-temperature geothermal wells (≤200℃), high-temperature deep unconventional oil & gas wells |
Protection & Outer Diameter |
Outer diameter 9.58mm±0.10mm, high-strength armored structure, PI encapsulation + corrosion-resistant material, excellent wear resistance, corrosion resistance and pressure resistance, suitable for harsh ultra-deep downhole environments |
Wellbore diameter ≥110mm, high friction, high wellbore wear, corrosive formation fluid (H₂S/CO₂/Cl⁻), rated pressure ≤140MPa, ultra-deep downhole environment (≤8000m) |
Ultra-deep cased wells (≤8000m), deep open-hole wells, high-friction oil & gas wells, deep coal mine underground monitoring wells |
Mechanical Performance |
Breaking strength 74kN, maximum working tension 37kN (1:2 safety factor), minimum bending diameter 1000mm, excellent flexibility, torsion resistance and anti-wear performance, fully适配 ultra-deep well (≤8000m) high-tension requirements |
Well depth ≤8000m, build-up section ≤65°, horizontal section ≤2500m (long radius), no sudden dogleg severity, high downhole friction and high-tension conditions |
Ultra-deep vertical wells (≤8000m), medium-to-high deviation directional wells, deep shale gas long-radius horizontal wells, deep coalbed methane development wells |
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