Logging Cable

W4B-4.7 4×0.22 Four-Conductor PP Insulated Armored Logging Cable

Dongsheng W4B-4.7 4×0.22 four-conductor armored logging cable features PP insulation, semi-conductive shielding and double steel wire armor for oil well logging and downhole measurement applications.

Key Specifications

Conductor
7 × 0.20 mm
Insulation
PP, 2.66mm
Inner Armor
18 × 0.47 mm
Outer Armor
18 × 0.64 mm
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ISO 9001 Certified
CNPC & Sinopec Approved
Global Export Ready
Custom R&D Available

Technical Description

  • Product Overview

  • W4B-4.7 4×0.22 is a four-conductor load bearing logging cable designed for downhole measurement and oil well logging operations. The cable features stranded conductors, PP insulation, a semi-conductive shielding layer and double-layer steel wire armor.
  • With an overall diameter of 4.70 mm ±0.10 mm, the cable has a weight in air of 90 kg/km and a specified operating temperature range of -30℃ to +150℃.
  • The double steel wire armor provides mechanical protection while maintaining the cable's load-bearing function during downhole deployment. The four-conductor configuration provides multiple electrical channels for logging equipment and downhole measurement systems.

  • Key Features

  • Four-Conductor Construction

  • The four-conductor design provides multiple electrical channels within a compact cable structure for downhole measurement and logging equipment.

  • PP Insulation

  • PP insulation is used around the individual conductors, with a specified insulation thickness of 2.66 mm.

  • Semi-Conductive Shielding

  • A semi-conductive shielding layer is incorporated into the cable construction to provide an additional electrical shielding structure.

  • Double Steel Wire Armor

  • The cable uses two layers of steel wire armor:
  • Inner armor: 18 × 0.47 mm
  • Outer armor: 18 × 0.64 mm
  • This construction provides mechanical protection and load-bearing capability.

  • Compact 4.7 mm Diameter

  • With a nominal diameter of 4.70 mm, the cable combines a compact overall structure with a specified breaking strength of 13 kN.

  • FAQ

  • What type of logging cable is W4B-4.7 4×0.22?
  • W4B-4.7 4×0.22 is a four-conductor load bearing logging cable with PP insulation, semi-conductive shielding and double steel wire armor.
  • How many conductors does the cable have?
  • The cable contains four conductors, with each conductor specified as 7 × 0.20 mm stranded construction.
  • What insulation material is used?
  • The cable uses PP (polypropylene) insulation.
  • What is the operating temperature range?
  • The specified operating temperature range is -30℃ to +150℃.
  • What is the breaking strength?
  • The specified breaking strength is 13 kN.
  • What is the cable diameter?
  • The overall diameter is 4.70 mm ±0.10 mm.

Application Scenarios

Downhole Logging Operations
Designed for wireline logging tools in oil & gas wells
Deep Well Exploration
Suitable for extreme depth and high-pressure environments
Perforating Operations
Pump-down and wireline perforating in production wells
High-Temperature Environments
Stable performance in geothermal and HPHT wells

Technical Specifications

Parameter Value Unit
Conductor 7 × 0.20 mm
Insulation PP, 2.66 mm
Inner Armor 18 × 0.47 mm
Outer Armor 18 × 0.64 mm
Overall Diameter 4.70 mm ±0.10 mm mm
Weight in Air 90 kg/km
Operating Temperature -30℃ to +150℃ ℃
Breaking Strength 13 kN
Minimum Bending Radius 128 mm
Test Voltage 500 VDC
Insulation Resistance at 20℃ ≥200 MΩ·km
DC Resistance at 20℃ ≤84.3 Ω/km
Capacitance ≤0.19 μF/km

Standards & Certifications

ISO 9001
Quality Management System
ISO 14001
Environmental Management
ISO 45001
Occupational Health & Safety

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