Pigging is a valuable service provided in the oil and gas industry. Pigging is completed to increase efficiency and avoid potential problems on existing pipelines, as well as remove new construction debris and assist during hydrostatic testing.
FourQuest Energy provides all required equipment as well as highly experienced personnel to complete every job.
Gauge pigs and caliper tools are ran through a pipeline to ensure that the pipeline has retained its shape through new construction and throughout the duration of its service.
FourQuest Energy provides the equipment, experience, and knowledge behind this service to result in success.
Upon completion of piping construction, the line is required to be tested beyond the required performance pressure of the pipeline. This testing can be completed pneumatically with air or nitrogen, or it can be completed with fluids such as water, glycol, or a methanol mixture.
Prior to line fill, our engineers will determine whether or not a line pack is needed on the pipeline. This is done by examining the hydrostatic profile of the pipeline to determine the amount of air needed to maintain pressure on the fill to ensure the measured amount of testing medium does not fill with air, which would result in issues during the line squeeze portion of the test.
Once the line has been tested, the water is removed and the drying process begins. This can be completed with a methanol wash or compressed air. The methanol wash would be pushed in a slug between pigs. The compressed air method would require a compressor and dryer set up to continually push pigs through the pipeline until the specified dryness has been achieved.
FourQuest Energy not only has the capabilities of completing all forms of testing, but we also have the global experience to complete this effectively. For every test to be completed, we provide a engineered procedure to be executed, as well as engineering support throughout the project.
