Well Tractor® CVT

Continuous Variable Tractoring (CVT)

The ultimate conveyance solution from our pioneering Well Tractor® range. The CVT system automatically maximizes speed and power at all times, optimizing every conveyance run, making operations faster and more efficient than ever before.

Case Highlights

Speed, power, evolution

In true Welltec spirit, the new CVT design revolutionizes what’s possible in terms of downhole conveyance.

- First wireline tractor
- First slickline battery tractor
- First coiled tubing tractor
- First CVT design – Continuous Variable Tractoring

Well Tractor CVT represents the next phase in the evolution of our conveyance technology. Now, more than 30 years of conveyance knowledge and experience manifests itself in a new and adaptive system, one which continually utilizes maximum power to deliver optimal speed and force at all times.

CVT is enabled by a whole host of upgrades and new tool features. An integrated system of sensors provides multiple diagnostics and feedback, providing Surface Readout (SRO) data based on measures from each section of the tool, from which the speed/force algorithm can control and respond to downhole requirements.

The new hydraulics and new motor are more powerful than any featured in previous Well Tractor iterations, meaning the toolstring is conveyed to target depth with unparalleled speeds of up to 131 ft/min. Combined with continuous analysis across a broad power band, CVT automatically optimizes every run to eliminate the need for conservative power use, or stopping to change gears or modes.

Each wheel section has its own power unit, creating the effect of multiple downhole tractors in one powerful solution. In the event that one section meets a downhole restriction, the others remain unaffected.

This is the most robust Well Tractor ever made, with the entire solution designed to withstand higher temperatures and pressures than ever before, including enhanced electronics architecture throughout.

Adding to an intervention portfolio already renowned for its ability to help operators save time and cost, while simultaneously reducing operational footprint, Well Tractor CVT maximizes these benefits with industry-leading conveyance.

Challenges

Datasheet

Well Tractor Hori
Applications
Clean-out solutions
Milling / Mechanical solutions
Seismic measurements
Fluid sampling
Fishing / Pipe recovery
SAGD ranging
Depth determination
Features
Passive fail-safe system
Modular
Configurable
Logging while tractoring
NACE compliant
OH or CH applications
Benefits
Prevents stuck tools
Maximized speed and force
Full surface read-out (SRO)
Streamline operation
Optimal data acquisition
Versatility actoss applications
Specifications*
Running OD nominal 2 1/2”
Length 17.2 ft
Weight in air 254 lbs
Max speed 75 ft/min
Max pull force 1000 lbs*
Maximum well pressure 20,000 psi
Maximum well temperature 365 °F
Tensile strength 60,000 lbs
Compressive strength 42,000 lbs
* For single WT. Tandem configuration offers higher pull force
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Talk to your local expert

At Welltec, our team of specialists is experienced in resolving the unique challenges of well drilling and operations across diverse terrain. Whatever your need, we can help you find a solution.