Product Category: Pigs, pipeline

A Pig Tale…In Two Parts

February 2013, Vol. 240 No. 2

People usually laugh when I tell them I chase pigs for a living. But the truth is that it’s very serious business – one which I have been perfecting for more than 25 years. I’ve tracked pigs in all kinds of pipelines, all over the world, and over the years I have seen all kinds of crazy things happen with pigs in pipelines. Probably the most important thing I’ve learned would be to expect the unexpected.

Automated Pigging Solutions For Unconventional Plays

December 2012, Vol. 239 No. 12

According to market studies, all indications are that the importance of the shale gas market is not going to diminish in the foreseeable future. On the contrary, significant growth is projected in many quarters. For example, a 2011 report issued by ICF International on behalf of the INGAA Foundation predicted that total United States and Canada shale gas production will jump from 2010 levels of about 13 Bcf/d to 52 bcf/d by the year 2035.

PRCI Expands Inline Research Program

September 2012, Vol. 239 No. 9

Pipeline Research Council International, Inc. (PRCI) expanded and accelerated its research and development program aimed at enhancing inline inspection (ILI) tools and developing the next generation of technology to ensure pipeline safety, integrity, and reliability.

Measurement Of Roof Topping Effects As An Integral Part Of Routine In-Line Inspection

August 2012, Vol. 239 No. 8

Caused by improper crimping of the steel sheet in the production process, roof topping is a geometric anomaly that occurs along the longitudinal seam weld of the pipe. These incorrectly crimped sheets then result in a deviation from the perfectly circular geometry of the pipeline. The implications of roof topping for pipeline integrity are severe. They include risk of failure during hydro-testing or fatigue failure during pipeline operation.

Advances In ILI Allow Assessing Unpiggable Pipelines

August 2011, Vol. 238 No. 8

Advances in inline inspection (ILI) tools and other inspection technology today allow for detailed assessment of unpiggable or difficult-to-pig pipelines. In pipe systems considered unpiggable or difficult-to-pig, hydrotesting has been the primary fitness-for-service (FFS) assessment methodology. While regulatory compliance may be achieved by hydrotesting some lines, such testing does not provide a complete picture of the condition of a pipeline.

Automatic Multiple Cleaning Pig Launching System Passes Test

August 2011, Vol. 238 No. 8

A patented automatic multiple pig launching (AMPL) system has been developed and undergone its first commercial use. The system individually launches multiple pigs from a preloaded cassette. The system requires no modification to the existing pipeline launcher because the pig launching process is controlled by a hydraulic system incorporated with the pigs rather than by using complex pipeline on the launcher.

Pig Trap Design And Assessment Considerations

January 2011 Vol. 238 No. 1

A pig trap must be designed to match the pipeline section design specifications. The mechanical design characteristics of the pig trap should meet or exceed the design pressure, have the same design factor, have compatible material type, be designed using the same design code and be suitable for the same temperature range as the pipeline section that it serves.

High Precision With Ultrasonic Pigging

August 2010 Vol. 237 No. 8

Being subject to appropriate inspections, pipelines and piping/pipework offer an almost unlimited service life. Strength and actual service capabilities must be assessed at regular intervals. Especially for thin-walled pipes made of high-strength steel, it is of particular importance to conduct regular inspections and examinations to detect any flaws and defects before they actually start to cause problems. Here, ultrasonic and magnetic flux leakage (MFL) pigs have been established as proven and suitable tools for inspection applications.