China Suppliers Factory GX-W6-2B1-2A1a-GBP-HS-11.8mm 6-Conductor Optical-Electrical Composite Logging Cable
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.
Wells deeper than 10000m: exceeds mechanical safety margin.
Ultrahigh temperature wells (> 150℃): causes insulation aging and performance failure.
Short-radius horizontal wells and sharp dogleg wells: not suitable for extreme bending.
Extremely severe H₂S/CO₂ corrosion environment without special anti-corrosion treatment.
Ultra-high pressure environment exceeding the rated pressure grade.
| 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 |
What is the maximum well depth this photoelectric composite cable is rated for?
The cable is engineered for ultra-deep applications with a maximum rated well depth of 10,000m. Its breaking strength of 100kN and a maximum working tension of 50kN (with a 1:2 safety factor) ensure reliable performance across the full depth range in high-friction, heavy-load downhole environments.
Can this cable be used in ultra-high temperature wells exceeding 150℃?
No. The cable's rated operating temperature is 150℃ (302℉). Wells with bottomhole temperatures exceeding 150℃ are strictly inapplicable, as ultra-high temperatures cause insulation aging in the FEP layer and lead to performance failure. Always verify bottomhole temperature before deployment.
Is the cable suitable for shale gas horizontal wells with very long horizontal sections?
Yes, the cable is well-suited for extra-long-radius horizontal wells with horizontal sections up to 3,000m. Its minimum bending diameter of 1,200mm, combined with excellent flexibility, torsion resistance, and anti-wear performance, makes it ideal for shale gas ultra-long horizontal well fracturing monitoring and tight reservoir dynamic monitoring.
What fiber types are integrated in the cable, and what functions do they serve?
The cable incorporates 2 single-mode (B1) fibers and 2 multi-mode (A1a) fibers within a photoelectric composite structure. This enables simultaneous downhole tool power supply and both DTS (Distributed Temperature Sensing) and DAS (Distributed Acoustic Sensing) optical signal transmission, making it a truly integrated solution for ultra-deep downhole monitoring.
How does the cable perform in corrosive downhole environments with H₂S or CO₂?
The cable features high-strength steel wire reinforced armor with FEP outer encapsulation, providing strong corrosion resistance against formation fluids containing H₂S, CO₂, and Cl⁻. However, in extremely severe corrosion environments without dedicated special anti-corrosion treatment, deployment is strictly not recommended, as the corrosive attack may exceed the cable's protective capacity.
What wellbore diameter and pressure conditions are required for safe deployment?
A minimum wellbore diameter of 120mm is required to ensure safe passage and operation of the cable (outer diameter 11.8mm ± 0.10mm). The cable is rated for a maximum downhole pressure of 140MPa. Applications in ultra-high pressure environments exceeding this rated pressure grade are strictly inapplicable and must be avoided.