services

Underground Pipeline Mapping (DGPS)

DGPS is an enhancement to ‘Global Positioning System’ that uses a network of fixed ground based reference stations, to broadcast the difference between the positions indicated by the satellite systems and the known fixed positions. These stations broadcast the difference between the measured satellite pseudo ranges and actual (internally computed) pseudo ranges, and receiver stations may correct their pseudo ranges by the same amount.

Our DGPS accuracy is in millimetre because we are using RTX and RTK technique for taking the coordinate of the underground pipeline. Our accuracy level is up-to 20mm in RTX method and 8mm to 15mm in RTK mode with comparison to Geological Survey of India.

Progressive Cleaning)

VDT has different type of progressive cleaning tools, these are:

Bi-di Tool,
Brush Cleaning Tool,
Wax Removal Tool,
Black Dust Removal Tool,
Dummy MFL Tool,
Batching Pigs (BP).

For gas pipeline we have hard cleaning option like pig train and dummy MFL, For liquid lines we have cleaning solutions like Pig train, We have expert team with cumulative experience of 35 years in pigging industry, which can take decision and provide consultant regarding pigging options to client.

High Resolution MFL

The device or vehicle, also known as an intelligent or smart pig, uses magnetic flux to inspect the defect on pipe.

VDT MFL tools belong to the latest generation – “True High Resolution” systems.

These tools are equipped with the measurement systems based on the highest effective resolution ensuring the best sizing accuracy.

The range of anomalies detectable and sizeable by True HR MFL tools include general metal loss anomalies, such as, general and pitting corrosion as well as scratches, gouges, circumferential cracks and anomalies of girth welds along with limited capability detection and sizing of axially oriented anomalies.

Any of our MFL inspection tool XYZ mapping unit and thus can obtain both metal loss inspection and XYZ mapping data simultaneously during a single run. Both XYZ mapping and inspection data are synchronized.

Leakage Detection

It is an industry common knowledge that the major threat to pipeline integrity is growth of corrosion, other metal loss and cracking anomalies. However mechanical deformations can also cause accelerated growth of cracking; and corroded dents can be a serious threat to pipeline integrity that can hardly be estimated according to existing codes and practices.

All VDT High Resolution (caliper tools) will be equipped with high resolution sensors, covering 360 degree of pipe circumference, used to recognize inner pipeline geometry. Any deviation from ideal circular shape of the pipe will be detected by the sensors. Thus we can detect not only geometry anomalies and their depth but also identify their shape and categorize them.

Hot Tapping

We are also providing the service of Hot Tapping with one foreign technology partner. For this we have a collaboration with ‘PROPIPE,SL”, with their Hot Tapping manufacturing and worldwide services.

Pig Detectors

Pig Detectors is a device installed on a pipeline with some type of indicator to detect movement of pig in a pipeline. Pig detectors are usually located near the launcher and receiver to confirm successful launch and receipt of the pigs or any trouble area of the pipeline.

Pig Trackers

Pig tracking is monitoring the location of a pipeline pig (or pigs). Pig Trackers consist of a signal-emitting transmitter and hand-held receiver with signal-pickup wand. The receivers utilize both audio and visual means to alert the operator of the presence of the pig. It is important to operate and control any pigging system safely, effectively and efficiently, and it's critical.

Pig Poles

The pig pole makes it easy to seat the pig without causing damage with a hook on one hand, for easy pig retrieval. They are made of Non-spark durable, high strength aluminum for seating pigs without damage. Modular components allow for multiple attachments and various lengths.