[zahra]

Hi
I have studied the TDW method as much as they described it in their web site .
also there will be a committe of profesional engineer which will consider my procedure before execution.
meanwhile I want to find my flaws.
what is the diffrence between my idea and what TDW will or other qualified companies do???
please correct my about weakpoints of my desing.

PS: In iran all the hot tap operation will be done by national iranian oil company and no forign company can be involved.
and they have highly qualified team.
but i am not sure about their method.

highly appreciated your reply