Carlos,
There is no such thing as “puncturing” recommended in any of the decoking procedures i have read; it seems to be just a poor practice from old dogs, which must likely may be due to lack of follow-up and/or maintenance of cutting equipments; it cuoud be due to low cutting pressure, damaged nozzles, between others. Procedures vary for different cokers depending on the available system, either hydraulic or air driven, but frequent preventive maintenance is a constant for all.
Lucky
