Pipeline Cleaning Effectiveness

How do you actually determine the best way to clean a pipeline using what type of pig(s) and so on (apart from just go with a minimum specs given by the client)?

Generally, which is best and more effective;

either

1. use one pig train with a certain type of pig and amount

or

2) use multiple pig trains with same certain type and amount of pigs as per #1 (except that it is launched separately)?

Thank You! Received on Thu Jan 29 00:13:00 2004