G2FBB-11×11 0.433*0.433 18 AWG 316L/825 Armor TEC Cable - China Suppliers and Factory for Downhole Logging
Applicable Well Types
1 Cased Hole Short-Distance Logging & Monitoring Wells (Best Match)
Well conditions: Conventional cased wells (φ114 mm to φ139.7 mm casing), well depth ≤ 5500 m, bottomhole temperature ≤ 150℃. Used for internal wiring of downhole tools and short-distance signal transmission between sensors and the main control unit.
2 MWD/LWD Tool Internal Connection Wells
Well conditions: Medium-deep vertical wells and low-deviation directional wells (inclination ≤ 45°), well depth ≤ 5500 m, bottomhole temperature ≤ 150℃, with no severe vibration or torsion. Suitable for signal transmission inside measurement-while-drilling tools.
3 Production Logging Tool String Connection Wells
Well conditions: Cased production wells, water injection wells, and gas injection wells, well depth ≤ 5500 m, bottomhole temperature ≤ 150℃. Used for connecting multiple sensors (flow rate, pressure, temperature) in production logging tool strings.
4 Medium-Temperature Geothermal & Hydrogeological Monitoring Wells
Well conditions: Medium-shallow geothermal wells and hydrogeological exploration wells, well depth ≤ 4500 m, bottomhole temperature ≤ 150℃. Suitable for multi-parameter monitoring signal transmission in limited space.
5 Coalbed Methane & Mine Underground Detection Wells
Well conditions: Shallow coalbed methane wells (≤ 2000 m) and mine underground small-diameter detection wells, temperature ≤ 150℃, narrow space. Suitable for flat cable layout in limited tool space.
Strictly Inapplicable Scenarios
High-Deviation Wells (> 45°) / Long Horizontal Section Wells.
Ultra-Deep Wells (> 6000 m) — The 12 kN breaking strength is insufficient to bear the total tension of long-distance self-weight and tool load, leading to a high breakage risk.
High-Temperature Wells (> 150℃).
Severe Corrosive Wells with High H₂S/CO₂ Concentration.
Heavy-Duty Main Logging Cable Applications — It is designed for internal connection and short-distance transmission, not suitable for serving as the main cable for heavy instrument lowering.
Selection Reference
| Parameter | Specification | Applicable Well Condition | Typical Well Type |
| Structure & Conductor | 11-core, copper conductor, fluoroplastic insulation, steel tape armor, flat profile, compact structure, multi-signal transmission capability, waterproof and sealed design | Narrow downhole tool space, short-distance signal transmission, medium-deep depth (≤5500m), no severe torsion or vibration, conventional casing or small-diameter wellbore, medium-temperature environment | MWD/LWD tool internal connection wells, production logging tool string connection wells, mine underground small-diameter detection wells |
| Temperature Resistance | Rated temperature 150℃ (core feature), fluoroplastic insulation with excellent thermal stability, suitable for long-term operation under medium-temperature downhole conditions | Bottomhole temperature ≤150℃, medium-temperature downhole environment, no ultra-high temperature (>150℃) working conditions, medium-shallow to medium-deep wells | Medium-temperature oil & gas wells, medium-temperature geothermal wells, medium-temperature hydrogeological exploration wells |
| Mechanical Performance | Breaking strength 12kN (core feature), steel tape armor with good wear resistance and moderate tensile strength, flat structure for space-saving layout, anti-extrusion and anti-abrasion performance | Well depth ≤5500m (≤6000m for ultra-light load), well inclination ≤45°, low vibration, no heavy load pulling, short-distance transmission scenarios | Cased hole short-distance logging wells, shallow coalbed methane wells, production dynamic monitoring wells |