Well-test and light-intervention locations often need lifting capability, wireline handling, pressure-test support, and controlled alignment at the wellhead. When those functions arrive as separate packages, the site plan becomes more complicated: more equipment movements, more interfaces, and more time spent coordinating the handoffs between systems. China Vigor's Well Test Derrick Truck is built around a different arrangement. It integrates test instruments, a winch, and a truck-mounted crane on one vehicle platform for conventional wireline work and associated light-service tasks.
One Vehicle, Coordinated Functions
The technical premise is functional integration, not merely mobility. Hydraulic control combines test-winch operation, carriage deflection, and crane operation, while a coordinated multi-pump system is intended to support efficient use of these functions. The operator cabin can deflect left or right so the winch can be aligned with the wellhead. This alignment feature addresses a basic but important field requirement: the line path, lifting geometry, and work area need to be considered together rather than adjusted as disconnected systems.
Typical described uses include conventional wireline operations, fishing, deployment of small-diameter cable, and seal-verification work in water wells. A job program should distinguish these intended activities from heavier workover operations and should establish the applicable lifting plan, line-load limits, well-control measures, and local operating requirements before mobilization.
Winch Capacity for Deep Operations
The published drum rope capacity is 9,500 meters for cable or wire with a 6 mm diameter. Maximum operating depth is listed as 9,000 meters, maximum pull force as 50 kN, and operating speed as 180 to 12,000 meters per hour. These figures frame the equipment's wireline capability, but a field design must also account for actual cable weight, tool-string weight, fluid effects, sheave routing, expected drag, and the operational margin needed at the planned depth.
The broad speed range is useful because wellsite operations have different motion requirements. Running to depth, making a controlled approach to a target, conducting a verification pass, and recovering a string may each call for different speed management. Operators should define those intervals in the procedure and monitor the load trend rather than treating maximum speed as a default operating target.
Confirm the installed cable diameter, usable drum capacity, and calculated line load for the planned depth.
Establish speed windows, communication signals, and stop-work criteria before the first tool is run.
Derrick Geometry and Lifting Data
The truck-mounted crane is specified with a maximum lifting moment of 350 kN·m, a maximum lifting height of 22 meters, and a maximum working range of 21.5 meters. It has 4 telescopic boom sections, a maximum rated lifting mass of 14,000 kg, and 360-degree rotation. Those specifications support planning for handling operations around the wellhead, but the permissible lift at a given radius must be taken from the approved load chart and site-specific lift plan.
The truck's H-type plus rear-outrigger arrangement is designed to provide a stable support footprint. It is also equipped with a radius indicator, relief valve, counterbalance valve, and hydraulic lock. Together, these devices reflect an engineering focus on monitored geometry, hydraulic load management, and retention of position. They are safeguards within a system, not replacements for ground assessment, outrigger setup, exclusion zones, operator competence, or inspection of lifting accessories.
Reducing Interfaces at the Site
An integrated vehicle can simplify a work sequence by consolidating functions that would otherwise require separate support units. The potential operational benefit is fewer equipment interfaces and a more direct setup for routine wireline or test-related jobs. It can also reduce the amount of traffic associated with mobilizing separate packages. The actual result will depend on road access, location layout, task scope, crew planning, and whether the well conditions remain within the equipment's approved envelope.
For project managers, the key is to turn integration into an execution plan. The crane, winch, test equipment, cabin alignment, and outriggers should be reviewed as one coordinated system. Pre-job checks should include hydraulic function tests, brake and lock verification, radius-indicator status, cable condition, communication protocols, and a clear division of responsibilities between vehicle operator and wellsite supervisor.
Special Equipment With Defined Inputs
Demand for efficient field logistics is a limited but relevant market factor; the main story is the equipment specification. The Vigor Well Test Derrick Truck offers a 9,500 m drum capacity, 9,000 m operating depth, 50 kN pull force, 22 m lifting height, and 14,000 kg rated lifting mass as published technical inputs. By bringing winch, test, crane, and positioning functions into one hydraulically coordinated platform, it offers well-service teams a structured option for planning conventional wireline and light-intervention work with fewer separate equipment interfaces.
*Contact China Vigor: info@vigorpetroleum.com | +86 29 81161513*
