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China Suppliers G1FF-6.35 0.25 16 AWG Monoconductor 316L/825 Armor Logging Cable from Factory
Applicable Well Types
1. Standard Cased Hole Logging Wells (Best Match)
Well Condition Features: Conventional casing wells (such as φ114 mm, φ127 mm, φ139.7 mm casing), well depth ≤ 5500 m, bottomhole temperature ≤ 200℃, pressure ≤ 100 MPa.
2. 200℃ Medium-High Temperature Oil & Gas Wells & Gas Wells (Matching Temperature Resistance + Corrosion Resistance)
Well Condition Features: Vertical and low-deviation directional wells with inclination ≤ 45°, well depth ≤ 5500 m, bottomhole temperature up to 200℃, medium formation pressure, no severe corrosion.
3. Production Logging & Dynamic Monitoring Wells
Well Condition Features: Cased production wells, water injection wells, oil & gas production wells; used for flow rate, water cut, pressure, temperature, casing damage detection, and cement bond logging.
4. Medium-Deep Open-Hole Exploration & Evaluation Wells
Well Condition Features: Medium-deep open-hole wells, well depth ≤ 5500 m, temperature ≤ 200℃, pressure ≤ 100 MPa, moderate formation conditions.
5. Medium-High Temperature Hydrogeological & Geothermal Monitoring Wells
Well Condition Features: Hydrogeological exploration wells, medium-temperature geothermal wells, temperature ≤ 200℃, well depth ≤ 5000 m, some with high-salinity formation water.
Strictly Inapplicable Scenarios
✕
High-Deviation & Horizontal Wells
High-deviation wells (> 60°) / long horizontal section wells / high dogleg severity wells.
✕
Ultra-Deep Wells (> 6000 m)
10 kN breaking strength is insufficient for the tension demands of ultra-deep wells.
✕
Ultra-High Temperature Wells (> 200℃)
Over-temperature causes fluoroplastic insulation aging, melting or failure, leading to insulation damage and short circuits.
✕
Severe Corrosive Wells with High H₂S/CO₂ Concentration
Standard steel pipe armor has limited resistance to sour gas corrosion, leading to rapid material deterioration and failure.
Selection Reference
| Parameter | Specification | Applicable Well Condition | Typical Well Type |
| Structure & Conductor | Single core, copper conductor, fluoroplastic (F46) insulation, seamless steel pipe protection, outer diameter 6.35mm (core feature), waterproof and sealed, high rigidity | Standard wellbore (≤150mm), conventional casing, medium-to-deep depth (≤5500m), no severe dogleg severity, suitable for medium-space downhole operation | Standard cased hole wells, φ114mm / φ127mm / φ139.7mm casing wells, medium-deep open-hole wells |
| Temperature Resistance | Rated temperature 200℃ (core feature), fluoroplastic insulation with excellent high-temperature stability, suitable for long-term operation under medium-high temperature downhole conditions | Bottomhole temperature ≤200℃, medium-high temperature downhole environment, no ultra-high temperature (>200℃) working conditions, medium-to-deep wells (≤5500m) | Medium-high temperature oil & gas wells, medium-high temperature geothermal wells, medium-temperature hydrogeological exploration wells |
| Mechanical Performance | Breaking strength 10kN (core feature), seamless steel pipe protection with high rigidity, wear resistance and anti-extrusion performance, suitable for medium-deep well tension requirements | Well depth ≤5500m (≤6000m for ultra-light load), well inclination ≤45° (≤60° for limited use), no heavy load (>120kg) operation, moderate friction conditions | Medium-deep conventional oil & gas vertical wells, low-deviation directional wells, medium-deep exploration & evaluation wells |
Frequently Asked Questions
Q
What is the maximum well depth this logging cable is rated for?
This cable is rated for well depths up to 5500 m under standard conditions. For ultra-light load operations, limited use up to 6000 m may be considered, but depths beyond this exceed the 10 kN breaking strength capacity and are not recommended.
Q
Can this cable be used in wells with bottomhole temperatures exceeding 200℃?
No. The fluoroplastic (F46) insulation is rated to a maximum of 200℃. Exceeding this temperature will cause insulation aging, melting, or failure, resulting in short circuits and cable damage. For wells above 200℃, a higher-rated cable must be selected.
Q
Is this cable suitable for horizontal wells or highly deviated wells?
This cable is best suited for vertical and low-deviation directional wells with inclination ≤ 45°. It can be used with limitations for inclinations up to 60°. Wells exceeding 60° deviation, long horizontal sections, or high dogleg severity wells are strictly inapplicable due to mechanical and operational constraints.
Q
What casing sizes are compatible with this logging cable?
The cable is compatible with standard casing sizes including φ114 mm, φ127 mm, and φ139.7 mm casing wells. It is designed for standard wellbores with an inner diameter of ≤ 150 mm, making it suitable for the majority of conventional cased hole logging operations.
Q
Can this cable withstand high concentrations of H₂S or CO₂ in the wellbore?
Standard steel pipe armor used in this cable has limited resistance to sour gas (H₂S/CO₂) corrosion. For wells with severe corrosive conditions or high concentrations of these gases, rapid material deterioration and failure may occur. A corrosion-resistant cable variant should be selected for such environments.
Q
What types of downhole logging operations is this cable best suited for?
This cable is best suited for a wide range of operations including cased hole logging, production logging, dynamic monitoring (flow rate, water cut, pressure, temperature), casing damage detection, cement bond logging, and open-hole evaluation in medium-deep wells. It is also applicable for hydrogeological exploration and medium-temperature geothermal monitoring wells.