5[1]Gulf Publishing Company and Scientific Surveys Ltd.:Evaluation of pipel ine-drying techniques,Pipeline Pigging Conference(Jakarta,Indonesia),1996 .
6[2]H.L.Stowers Jr.:Offshore pipeline drying with dry air and pigs,OTC 6773,1 991.
7[3]Tony Barber:The UK-Europe Interconnector pipeline:pigging and testing,Pip es & Pipelines Int.,1999,44(5) 5～17.
8[4]Christian Falck et al:Precommissioning and commissioning of Eur opipe-an environmental challenge,Pipes & Pipelines Int.,1996,41(4) 16 ～22.
9[5]Christian Falck et al:Commissioning the Zeepipe system sets new standards,Pipeline Gas Journal,1994,221(8) 24～33.
10[6]Jarieiv Maribu et al:The Zeepipe experience:pigging 814 km of subsea gas pipeline in the North Sea,Pipes & Pipelines Int.,1994,39(8) 1 6～22.
