Offline Pipeline Cleaning
N-SPEC also performs off-line pipeline cleaning services. Using the off-line cleaning method requires the line to be out of service and uses an outside force such as nitrogen, air or water to propel the pigs. Both chemical cleaning and dry mechanical cleaning can be performed with this method.
When pipeline cleaning chemicals are used this method of cleaning typically yields a very clean pipeline. However, revenue lost by taking the line out of service and additional cost to propel the pigs, often results in higher cleaning costs to successfully execute the pipeline cleaning project.