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Inspection & Testing Equipment

Wireline Unit

The Wireline Unit is a professional truck-mounted downhole operation and well service equipment specially developed for oil and gas well wireline operation, downhole tool delivery, well testing, plugging removal and mechanical intervention tasks. Built on a heavy-duty all-terrain truck chassis, the unit integrates a high-performance hydraulic winch system, high-strength multi-core wireline assembly, precise tension-depth monitoring system, hydraulic power drive module and intelligent operation control cabinet. Different from data-collection-focused logging trucks, this unit is dedicated to mechanical downhole construction, supporting core operations such as downhole tool running and pulling, wellbore parameter testing, paraffin cutting, bridge plug setting and retrieving, downhole fishing and well condition troubleshooting. It can complete one-time wireline construction without tripping pipe strings, greatly simplifying well intervention procedures and reducing operation cycle. Manufactured in strict compliance with API oilfield industry standards, the mobile unit features flexible mobility, rapid deployment and wide working coverage. It adapts to ultra-harsh working environments including deserts, Gobi terrains, mountain muddy well sites and high-altitude cold plateaus, providing efficient, low-cost and reliable wireline operation solutions for conventional well maintenance, well testing evaluation and old well reconstruction projects.

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Core advantages

Designed around the operating requirement.

Professional Mechanical Wireline Intervention Capacity

Centered on downhole mechanical operation, the equipment realizes tool delivery, precise positioning and salvaging construction through high-strength wireline traction. It covers mainstream wireline processes such as well testing, plug operation, wax cutting and downhole fault handling. It replaces traditional pipe-tripping operation modes, effectively reducing construction time and reservoir disturbance, solving the pain points of long cycle and high cost of conventional workover operations.

Stable Constant-Tension Winch Control System

Equipped with high-reliability hydraulic servo winch and optimized wireline transmission structure, it supports stepless adjustable operating speed and constant-tension closed-loop control. The real-time tension and depth monitoring system effectively prevents wireline over-pull, tool sticking and underground jamming risks. Stable lifting and lowering operation ensures high precision and safety for downhole mechanical construction.

Multi-Functional & High-Efficiency Operation Mode

The integrated design realizes multiple operation functions in one unit, compatible with various downhole wireline tools and testing instruments. It can independently complete well testing data acquisition, downhole tool operation and wellbore maintenance construction. The multi-scene operation capability avoids repeated equipment mobilization, significantly improving the overall working efficiency of oilfield well service teams.

Vehicle-Mounted Integrated Compact Layout

The winch assembly, hydraulic power unit, control system and wireline storage module are highly integrated on a heavy-duty off-road chassis. Optimized weight distribution ensures stable driving and cross-terrain transfer performance. It requires no complex on-site assembly and debugging, supporting rapid well-site deployment and emergency response, perfectly adapting to scattered well locations and batch wireline operation of cluster well groups.

Full-Climate Extreme Environment Adaptability

The whole vehicle adopts military-grade sand-proof, anti-corrosion and weather-resistant protective coating. Core hydraulic, electrical and sensing components are equipped with wide-temperature resistant configurations. Optional low-temperature quick-start and full-system heat preservation devices support stable operation in the range of -40℃ to +55℃, realizing year-round uninterrupted wireline service in high-altitude cold plateaus, arid deserts and wind-sand Gobi oilfields.

Low Operation Cost & High Cost Performance

Compared with large workover rigs, the Wireline Unit features small site occupation, simple operation procedures and low fuel consumption. The modular structural design facilitates daily inspection and rapid replacement of wearing parts. It greatly reduces single-well construction cost and long-term maintenance investment, becoming the preferred equipment for daily batch wireline operation and well maintenance in oilfields.

Product Overview
Product	Wireline Unit
Product line	Inspection & Testing Equipment

Technical Specifications
Chassis model	EQ6672CT(4×4)
Depth of cable well test m	≥4500 (φ3.5mm cable)
Cable drum capacity	≥5000m(φ3.5mm cable)
Depth of wireline well test m	≥6000 (φ2.4mm wireline)
Wireline drum capacity:	≥6500m(φ2.4mm wireline)
Max hosting pull kN	10 kN
Max hosting speed m/s	6
Drum speed ranger/min	0~350
Outsize(L×W×H)mm	6700×2320×3010,2800

Application

Where this equipment is used.

Downhole wireline testing, reservoir parameter acquisition and well condition evaluation for oil and gas wells
Running, positioning, setting and retrieving of downhole tools such as bridge plugs, packers and testing instruments
Wireline paraffin cutting, scale cleaning and downhole plugging removal for production wells with wax deposition and blockage
Downhole fishing operation and underground fault troubleshooting for fallen tools and wellbore obstacles
Batch wireline intervention and routine maintenance for large-scale cluster well groups and old well block renovation
Continuous and stable wireline construction tasks in deserts, Gobi, mountainous muddy areas and high-altitude cold oilfields

Next step

Send the operating requirement.

For a useful technical response, include the target well conditions, operating depth or pressure, expected quantity, destination and any required configuration.

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Configuration

Options for a matched equipment scope.

Available configurations can be matched to the equipment model, operating conditions and project requirements.

Customize ultra-deep depth configuration and high-tension winch system for 7000m+ ultra-deep well wireline operation
Upgrade high-strength anti-fatigue wireline and high-precision tension sensing module for high-intensity continuous operation
Equip full intrinsically safe explosion-proof electrical system to meet Class 0 hazardous oilfield zone safety standards
Install low-temperature quick-start and full-system heat preservation assembly for year-round operation in severe cold plateau regions
Add remote cloud data transmission, real-time operation monitoring and automatic construction record export function
Upgrade enhanced hydraulic power system to improve overload resistance and operation stability under complex downhole conditions
Customize enhanced sand-proof, anti-corrosion and weather-resistant coating for long-term desert and Gobi harsh environment service

Buyer questions

Frequently asked about this equipment.

The following questions address common equipment selection and operating considerations.

What is the difference between Wireline Unit and Logging Truck?

The Wireline Unit focuses on mechanical downhole intervention, including tool running, fishing, plug operation and wellbore maintenance, serving well construction and troubleshooting. The Logging Truck mainly completes geological data collection and reservoir evaluation. The Wireline Unit is more functional in practical well service and on-site construction.

What main operations can the Wireline Unit complete?

It covers all conventional oilfield wireline services: downhole well testing data acquisition, bridge plug setting and retrieval, paraffin cutting, downhole tool salvaging, wellbore blockage removal and daily well condition troubleshooting, realizing multi-purpose well intervention construction.

How does the equipment ensure downhole operation safety?

Adopting intelligent constant-tension closed-loop control, it monitors downhole tension and depth in real time. Over-tension alarm, overload protection and emergency stop functions effectively avoid wireline breaking, tool sticking and downhole accidents, ensuring safe and standardized whole-process construction.

Can the Wireline Unit adapt to harsh climate and complex terrain?

Absolutely. The whole machine is designed for full-climate oilfield operation, stably working at -40℃ to +55℃. Equipped with anti-corrosion, sand-proof and low-temperature resistant configurations, it adapts to plateau cold, desert high-temperature and Gobi wind-sand working conditions.

Can working parameters and functional configurations be customized?

Yes. We support personalized customization of operating depth, lifting tension grade, running speed, explosion-proof specification and intelligent monitoring functions to match different well depths, downhole complexity and oilfield safety standards.

Supplier context

Why this product is considered.

We provide professional oilfield Wireline Unit with independent R&D and standardized manufacturing capabilities, fully compliant with API international petroleum machinery specifications. Our equipment adopts high-stability hydraulic winch system and precise constant-tension control technology, featuring stable operation, strong downhole adaptability and high construction safety. The integrated vehicle-mounted design realizes rapid well-site deployment and flexible cross-region transfer, efficiently meeting multi-functional wireline intervention and batch well maintenance demands. We provide one-stop full-process solutions including personalized scheme customization, standardized production, global safe transportation and on-site commissioning guidance, helping customers simplify well service procedures, reduce operation costs and improve overall oilfield well construction efficiency.

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