Home > Products > 3-Conductor Monoconductor Logging Cable 7/32" vs 5/16" vs 15/32" Comparison

3-Conductor Monoconductor Logging Cable 7/32" vs 5/16" vs 15/32" Comparison

3-conductor logging cables are widely used in oilfield wireline logging and downhole monitoring systems. Different cable sizes provide different levels of strength, flexibility, and application depth suitability.

Overview

These cables are designed for signal transmission and downhole data communication in harsh oilfield environments. The conductor size directly affects mechanical strength and operational performance.

7/32" Cable
Lightweight and flexible, suitable for standard wireline logging in medium-depth wells.

5/16" Cable
Balanced performance with improved strength and stable transmission for deeper wells.

15/32" Cable
Heavy-duty design for maximum tensile strength and harsh deep-well conditions.

Key Differences
7/32": Flexible & light-duty
5/16": Balanced performance
15/32": Heavy-duty & high strength
Applications
Oilfield wireline logging
Downhole monitoring systems
Well intervention operations
Oil & gas exploration

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Technical Specifications

Item	7/32" (5.6mm)	5/16" (8.0mm)	15/32" (11.8mm)
Technical Specifications
PROPERTIES
Cable Diameter	7/32" (5.6mm)	5/16" (8.0mm)	15/32" (11.8mm)
Minimum Sheave Diameter	11" (280mm)	16" (400mm)	23" (590mm)
Cable Stretch Coefficient (Ft/Kft/Klbs / m/Km/5kN)	2.2 (2.5)	1.2 (1.35)	0.76 (0.85)
ELECTRICAL
Item	7/32"	5/16"	15/32"
Maximum Conductor Voltage	1000 VDC	1000 VDC	1000 VDC
Conductor AWG Rating	24	20	17
Minimum Insulating Resistance (MΩ/Kft / m/Km)	1640 (500)	1640 (500)	1640 (500)
MECHANICAL
Item	7/32"	5/16"	15/32"
Cable Breaking Strength (Fixed)	5600 lbs (25 kN)	10125 lbs (45 kN)	19125 lbs (85 kN)
Max Suggested Working Tension	4050 lbs (18 kN)	7425 lbs (33 kN)	14175 lbs (63 kN)
WIRE STRUCTURE
Item	7/32"	5/16"	15/32"
Inner Armor	12 × 0.031" (0.7874mm)	12 × 0.0319" (0.81mm)	24 × 0.0394" (1.01mm)
Outer Armor	18 × 0.031" (0.7874mm)	18 × 0.0437" (1.11mm)	24 × 0.0492" (1.25mm)

PROPERTIES
Item	7/32"(5.6mm)	5/16" (8.0mm)	15/32(11.8mm)
Cable Diameter	7/32"(5.6mm)	5/16" (8.0mm)	15/32(11.8mm)
Minimum Sheave Diameter	11" (280mm)	16" (400mm)	23"(590mm)
Cable Stretch Coefficient Ft/Kft/Klbs (m/Km/5KN)	2.2 (2.5)	1.2 (1.35)	0.76 (0.85)

FAQs

Q1: What is a load bearing exploration cable used for?

Load bearing exploration cables are mainly used for oil & gas well logging, perforating, coring, and other downhole operations. They provide load bearing, power supply, signal transmission, and depth measurement functions.

Q2: What core types are available for load bearing exploration cables?

According to the number of cores, the cables are available in single-core, three-core, four-core, and seven-core structures to meet different downhole operation requirements.

Q3: What temperature range can load bearing exploration cables withstand?

Normal temperature cables usually operate from -30°C to 150°C, while high-temperature load bearing exploration cables can withstand temperatures from -50°C to 260°C.

Q4: What is the difference between ordinary and sulfur-resistant exploration cables?

Sulfur-resistant load bearing exploration cables are specially designed for corrosive oil & gas wells containing H₂S and other harsh media, offering enhanced corrosion resistance and longer service life.

Q5: Which standard do load bearing exploration cables comply with?

Load bearing exploration cables are manufactured according to SY/T 6600-2020, the oil and gas industry standard for load-bearing exploration cables.