Pipeline Pigging With Smart Pigs
Using pigging with smart pigs is a good way to monitor pipelines and prevent the harmful leaks that can occur in a pipeline. Pipelines are vital for the transportation of high value commodities, but they can also be subject to corrosion, deposits, and other issues that can be hazardous to production and endanger lives. With smart pigging, maintenance crews can inspect pipelines without interrupting production or damaging the environment. Smart pigs can be used to measure pipeline temperature, pressure, deformations, and other anomalies. This allows repair crews to quickly locate defects and avoid excessive digging.
Pipeline pigging with smart pigs is an effective and cost-efficient way to maintain pipelines. It can help save companies money and minimize downtime by allowing them to clean and inspect pipelines without interrupting product flow. Smart pigs can also help in mapping pipelines and identifying problems with welding, cracks, and corrosion. They can also be used to clear liquid from multi-product pipelines. Smart pigs are also able to separate different products in a pipeline.
Pigging with smart pigs is an efficient way to inspect a pipeline, as the device is able to remove all contents from the line without interrupting production or causing environmental damage. A pig is typically placed in a pig launcher, which allows it to move into the pipeline. Pigs are also able to exit the pipeline through a quick opening closure. This closure looks like a flange and can be placed on the end of the pig-trap.
The data gathered from a pig includes positional information, such as the distance traveled, speed, and the location of the pig. This information can then be combined with external sensors to create a defect map that is specific to the pipeline. The combined data is also helpful in locating defects quickly. The results of the pigging can then be compared with the results of subsequent pigging runs. This method can also be used to determine the exact path taken by the pig. The results can also be stored in a pipeline-open data standard format.
The technology involved in pigging with smart pigs varies from manufacturer to manufacturer. Depending on the manufacturer, modern intelligent pigs may include sensors, electronics, and even solid-state memory. The data gathered is recorded on analog tape, digital tape, or digital tape and analog tape. Smart pigs also may be equipped with a GPS system. This system provides the operator with a positional map that shows the location of a defect.
Smart pigs also collect data about corrosion, metal loss, and deformations. These data are then combined with information from external sensors to create a defect map that can be used to determine the severity of the defect. This allows the operator to make informed judgments about the defect.
Modern intelligent pigs vary in complexity, depending on the manufacturer and the task at hand. Some have sensors and electronics, while others are made of special materials. Some pigs use a combination of technologies, such as gyroscope-assisted tilt sensors, magnetic flux leakage (MFL) technology, or acoustic resonance technology.