Frequently Asked Questions

  • A pipeline pig, also known simply as a "pig," is a device used in the oil and gas industry to perform various maintenance and inspection tasks inside pipelines. The term "pig" is an acronym that stands for "Pipeline Inspection Gauge," although pigs can serve purposes beyond inspection. These devices are typically cylindrical or bullet-shaped and are inserted into a pipeline and pushed through it using the flow of the product being transported (such as oil or natural gas) or through a separate pigging system.

    Here are some of the primary functions of pipeline pigs:

    1. Cleaning: One of the most common uses of pigs is to clean the interior of pipelines. They can remove debris, sediment, and built-up deposits from the pipe walls, helping to maintain the pipeline's efficiency.

    2. Inspection: Some pigs are equipped with sensors and instruments to inspect the condition of the pipeline. They can detect issues like corrosion, cracks, or irregularities in the pipe walls.

    Pigs come in various types and designs, each tailored to specific tasks and pipeline conditions. They are an essential tool in the oil and gas industry for ensuring the safe and efficient operation of pipelines. Additionally, they help prevent corrosion and ensure the longevity of the pipelines, which is crucial for maintaining the integrity of the transportation system.

  • Pipeline pigs work by utilizing the flow of the product or a separate pigging system to move through the pipeline while performing specific maintenance, inspection, or operational tasks to ensure the pipeline's efficiency and integrity.

  • The pigs don’t have GPS, but we use trackers inside the pigs and above-ground markers (AGMs) to track their progress through the pipe. These markers are strategically placed along the pipeline route and are equipped with sensors that can detect the passage of the pig as it travels through the pipeline. When a pig passes by an AGM, the sensors in the marker pick up the signal emitted by the pig. This information is then transmitted to a central monitoring system, and our operators receive real-time updates when the pigs pass the AGMs.

  • Of course, a pig can get stuck, but it’s rare in our experience. Our expertise and experienced operators play a crucial role in minimizing the possibility of pipeline pigs getting stuck. American Pipeline Solutions has a team of skilled professionals well-versed in pigging techniques and pipeline conditions. They carefully select the appropriate pigging tools for each project and consider factors such as pipeline diameter, bends, potential obstructions, and type of valves in your system. Our thorough pipeline assessments before pigging also help identify any areas of concern that could lead to pig entrapment. Through these measures, we work diligently to ensure a smooth and efficient pigging process while mitigating the risk of the pig getting stuck.

  • If a pig becomes stuck during the pigging process, American Pipeline Solutions employs a systematic approach to address the situation promptly and effectively. Our experienced operators are trained to handle such scenarios with precision and expertise.

    1. Assessment: The first step is to assess the situation and determine where the pig is stuck within the pipeline.

    2. Analysis: We analyze the possible causes of the pig's entrapment, such as debris buildup, pipeline irregularities, or mechanical issues.

    3. Release Techniques: Our operators utilize techniques to release the stuck pig. This might involve adjusting the pressure or flow rate, using mechanical tools, or employing techniques that help dislodge the pig.

    4. Collaboration: If the situation requires it, we collaborate with our clients, pipeline manufacturers, and other experts to explore viable solutions.

    5. Prevention Measures: After successfully releasing the pig, we assess the root cause of the entrapment and implement preventive measures to avoid similar incidents in the future. This could involve adjusting pigging parameters, frequently cleaning, or addressing pipeline integrity issues.

    Our comprehensive approach ensures that any disruptions due to a stuck pig are managed swiftly and professionally, allowing us to resume pigging operations while maintaining the safety and integrity of the pipeline.

  • We determine the pig's arrival at the retrieval point by calculating its speed through the pipeline and tracking its progress using AGMs. These markers are strategically placed along the pipeline and emit signals that indicate the pig's location. By measuring the time it takes for the pig to pass between these markers, we can estimate its travel speed and predict when it will reach the retrieval point. This approach ensures efficient pigging operations and accurate timing for retrieval.

  • Yes, we typically start with smaller pigs and gradually increase in size if necessary. This progressive approach allows us to ensure a smooth cleaning process and minimize the risk of any blockages or issues. Starting with smaller pigs helps to dislodge loose debris and buildup, preparing the pipeline for the larger pigs that can handle more substantial cleaning tasks effectively. This method enhances the overall effectiveness of the pigging process and helps maintain the integrity of the pipeline.