4Hansen R L,Rickey W P.Evolution of subsea production systems[J] .a worldwide overview.OTC 7628,1994.
5ISO 13628-6:2006 petroleum and natural gas industries—Design and operation of subsea production systems—part6:subsea production control systems[S] .
6ISO 13628-4:2006 petroleum and natural gas industries—Design and operation of subsea production systems—part4:subsea wellhead and tree equipment[S] .
7ISO 13628-8:2006 petroleum and natural gas industries—Design and operation of subsea production systems—part8:remotely operated vehicle (ROV) interfaces on subsea production systems[S] .
8API SPEC 17D:2011 design and operation of subsea production systems—subsea wellhead and tree equipment[S] .
9API SPEC 6D:2008 petroleum and natural gas industries—specification for pipeline valves[S] .