A truck-mounted wireline logging unit is an integrated mobile surface system designed to support professional well service operations at onshore oil and gas wellsites.
Our team designs this unit to combine the vehicle platform, heavy-duty winch, cable handling, depth/tension measurement, and hydraulic power systems into one field-ready package.
As a direct manufacturer , we provide a significant cost advantage by controlling the entire production process. Whether you need standard configurations or customized builds, we deliver reliable, turnkey solutions that directly meet your on-site logging requirements
How Does a Truck-Mounted Wireline Logging Unit Work?
1. Mobile Positioning
The truck provides a mobile platform for transporting the wireline equipment between wellsites.
2. Power Transmission
Power is supplied through the truck PTO or an independent power system according to the selected configuration.
3. Winch Operation
The hydraulic or mechanical drive system controls the wireline drum for controlled cable deployment and retrieval.
4. Depth & Tension Monitoring
The measuring system monitors cable depth, line speed and tension during operation.
5. Downhole Tool Deployment
The wireline cable carries the selected downhole tools into the well for logging, evaluation or intervention operations.
6. Surface Data & Control
Operators monitor equipment status and control the wireline operation from the integrated operator cabin.
Integrated Systems of a Truck-Mounted
Vehicle Platform
Provides mobility, payload capacity and field access.
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Power & Drive System
Transfers power to the wireline winch and auxiliary equipment.
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Wireline Winch
Controls cable deployment, retrieval, line speed and pulling force.
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Depth & Tension System
Provides real-time measurement of cable position, speed and tension.
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Surface Control System
Allows operators to monitor and control the operation.
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Downhole Tools
Perform the required logging or intervention measurements.
Input → Power → Mechanical Operation → Measurement → Control → Downhole Result
What Determines Wireline Logging Performance?
Winch Control
Stable line speed and pulling force are essential for controlled cable movement and downhole tool deployment.
Depth Measurement
Accurate depth measurement provides the reference required for reliable wireline operations.
Tension Monitoring
Real-time tension monitoring helps operators identify abnormal cable loading and maintain safer operation.
Hydraulic Drive
A properly matched hydraulic system provides smooth and responsive winch control during continuous field operations.
Power Supply
Stable power is required for the winch, control system, lighting, air conditioning and auxiliary equipment.
Surface Control
An integrated control system allows operators to monitor key operating parameters from the logging cabin.
What Can a Truck-Mounted Wireline Logging Unit Handle?
Formation Evaluation
Supports wireline logging operations for collecting subsurface formation data.
Well Integrity Evaluation
Supports cased-hole operations for evaluating wellbore and completion conditions.
Perforation Support
Can be configured to support perforating operations where the required surface and wellhead systems are included.
Well Intervention
Supports selected intervention and downhole service operations according to the equipment configuration.
PTO Drive or Independent Power System?
|
Drive Option |
Suitable For |
|
Truck PTO Drive |
Integrated vehicle configuration and simplified power transmission |
|
Independent Power Pack |
Applications requiring independent operation or dedicated equipment power |
The appropriate power configuration depends on the chassis, winch requirements and intended operating conditions.
Technical Specifications
|
Item |
Specification |
|
Chassis |
SINOTRUK / SHACMAN / MAN / Mercedes-Benz / Optional |
|
Drive |
4×2 / 6×4 / 6×6 |
|
Wireline Drum |
Single / Dual |
|
Cable Capacity |
Customized |
|
Pull Force |
Customized |
|
Line Speed |
Customized |
|
Drive System |
Hydraulic / Mechanical |
|
Power Supply |
PTO / Independent Power Pack |
|
Depth & Tension System |
Optional |
|
Operator Cabin |
Integrated Logging Cabin |
FAQ
1.What is the difference between single-drum and dual-drum wireline units?
Choose single-drum for budget-friendly, routine jobs; choose dual-drum for complex operations where time and versatility are critical.
2.How is a wireline winch powered?
A wireline winch is primarily powered by a hydraulic system driven by the truck's main engine
3.What is a depth and tension measuring system?
Depth (Digital Counter): Tracks exactly how many feet of wireline have been run into the wellbore, ensuring tools are accurately positioned at the required downhole depth.
Tension (Load Cell): Measures the pulling force (weight) on the wire. It detects sudden overloads, sticking tools, or line breakage risks, preventing costly downhole accidents.
4.What is the role of a wireline measuring head?
Without the measuring head, the operator would have no reliable way of knowing exactly where downhole tools are located, making safe intervention impossible. It is the primary "eyes" for depth control.
5.What is the difference between PTO and independent power for a wireline unit?
Choose PTO for budget-friendly, occasional use; choose Independent Power for frequent, long-duration operations where fuel efficiency and quiet operation are priorities.
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