1- FEED comes after conceptual design
2- To acheive a best deisgn you have to follow a strong guide line such as (WP,KBR,FW,Flour,JGC)
3-It's a general question (plz specify)
4-Surface production & operation,Petroluem & natural gas engineering
5-API,PIP,ANSI,ISA

Regards
Emad Gebesy

Worley Parsons Egypt

emad.gebesy@worleyparsons.com