GX-W6-2B1-2A1a-GBP-HS-11.8mm 6-Conductor Optical Fiber Cable - High Strength China Suppliers Factory
Applicable Well Types
1. Conventional Oil & Gas Wells
Adaptable Well Types: Ultra-deep vertical wells (depth ≤ 10000m), medium-high deviation directional wells (≤ 65°), ultra-deep cased wells, ultra-deep open-hole wells, high-friction / high-abrasion / heavy-load deep wells.
Typical Applications: Ultra-deep oil & gas exploration, ultra-deep well production monitoring, heavy-load logging operations, high-friction deep well operations, permanent downhole monitoring.
2. Unconventional Oil & Gas Wells
Adaptable Well Types: Extra-long-radius horizontal wells (horizontal section ≤ 3000m), ultra-deep shale gas wells, deep coalbed methane wells, deep tight oil & gas wells, heavy-load development wells.
Typical Applications: Shale gas ultra-long horizontal well fracturing monitoring, deep CBM well production monitoring, tight reservoir dynamic monitoring, heavy-load downhole monitoring system.
3. Other Exploration & Engineering Wells
Adaptable Well Types: Deep geothermal wells (≤ 150℃), ultradeep hydrogeological wells, deep engineering monitoring wells, deep water injection wells, offshore deep monitoring wells.
Typical Applications: Deep geothermal resource monitoring, ultradeep hydrological detection, deep engineering well monitoring, water injection profile monitoring, offshore deep well monitoring.
Strictly Inapplicable Scenarios
1. Wells deeper than 10000m: exceeds mechanical safety margin.
2. Ultrahigh temperature wells (> 150℃): 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), GBP standard, high-strength steel wire reinforced armored design |
Simultaneous downhole power supply & DTS/DAS optical signal transmission, bottomhole temperature ≤150℃, fiber reserve length >3‰, suitable for ultra-deep, high-friction, high-tension downhole environment (≤10000m) |
Ultra-deep conventional oil & gas wells (≤10000m), ultra-deep shale gas horizontal wells, deep coalbed methane wells |
Temperature Resistance |
Rated temperature 150℃ (302℉), FEP inner insulation layer, compatible with high-strength steel wire armored structure, stable insulation and signal transmission under medium-temperature long-term operation |
Medium-temperature downhole environment, bottomhole temperature ≤150℃, no ultra-high temperature (>150℃) environment, ultra-deep well (≤10000m) long-term photoelectric dual transmission |
Ultra-deep oil & gas wells (≤10000m), deep geothermal wells (≤150℃), ultra-deep unconventional oil & gas wells |
Protection & Outer Diameter |
Outer diameter 11.8mm±0.10mm, high-strength steel wire reinforced armor, FEP outer encapsulation, excellent tensile, wear-resistant, corrosion-resistant and pressure-resistant performance, suitable for harsh ultra-deep downhole environments |
Wellbore diameter ≥120mm, high friction, high wellbore wear, corrosive formation fluid (H₂S/CO₂/Cl⁻), rated pressure ≤140MPa, ultra-deep downhole environment (≤10000m) |
Ultra-deep cased wells (≤10000m), ultra-deep open-hole wells, high-friction heavy-load oil & gas wells, offshore deep monitoring wells |
Mechanical Performance |
Breaking strength 100kN, maximum working tension 50kN (1:2 safety factor), minimum bending diameter 1200mm, excellent flexibility, torsion resistance and anti-wear performance (strengthened by high-strength steel wire), fully ultra-deep well (≤10000m) high-tension and heavy-load requirements |
Well depth ≤10000m, build-up section ≤65°, horizontal section ≤3000m (long radius), no sudden dogleg severity, high downhole friction, high-tension and heavy-load conditions |
Ultra-deep vertical wells (≤10000m), medium-to-high deviation directional wells, ultra-deep shale gas long-radius horizontal wells, deep coalbed methane development wells |
Frequently Asked Questions
The cable is rated for well depths up to 10,000 meters. Beyond this depth, the mechanical loads exceed the design safety margin, including the maximum working tension of 50kN and a 1:2 safety factor based on 100kN breaking strength. Operation in wells deeper than 10,000m is strictly not recommended.
Yes, this cable is compatible with deep geothermal wells where bottomhole temperatures do not exceed 150℃ (302℉). The FEP inner insulation layer and armored structure ensure stable performance under sustained medium-temperature conditions. However, it is strictly inapplicable in environments exceeding 150℃, as this will cause insulation aging and signal transmission failure.
Yes. The cable is specifically engineered for extra-long-radius horizontal wells with horizontal sections up to 3,000 meters, making it well suited for ultra-deep shale gas horizontal well fracturing monitoring and DTS/DAS optical signal transmission. It is not suitable for short-radius or sharp dogleg well configurations.
The cable features an FEP outer encapsulation combined with high-strength steel wire reinforced armor, providing good resistance to corrosive formation fluids including H₂S, CO₂, and Cl⁻. However, in extremely severe corrosion environments, additional special anti-corrosion treatment is required. Deployment without such measures in extreme corrosion conditions is classified as a strictly inapplicable scenario.
The cable integrates 2 single-mode (B1) fibers and 2 multi-mode (A1a) fibers within a photoelectric composite structure. This configuration supports simultaneous DTS (Distributed Temperature Sensing) and DAS (Distributed Acoustic Sensing) optical signal transmission, along with power supply to downhole tools — all through a single cable deployment, meeting GBP standards with a fiber reserve length greater than 3‰.
The cable has an outer diameter of 11.8mm (±0.10mm) and requires a minimum wellbore diameter of 120mm for safe deployment. Its compact and reinforced design ensures compatibility with ultra-deep cased wells, open-hole wells, and high-friction heavy-load environments while maintaining rated pressure performance up to 140MPa.