Don Field Decommissioning Programme (pdf, 7.8MB) null - BP

Executive SummaryMay 2011 2-5Table 2.1 Current Status of Pipelines (sheet 2 of 2)WellJumpers between Don Manifold and WellsJumpersType Locat Drilled Susp'dDECC No Type StatusCommentsPN05 Prod Don SW Sept 1993 2000 PL981 Flowline Removed Decommissioned SCM removed. Serviceable flexible flowlineconnected to PN06 and became known as PL1073. Flowline filledwith inhibited seawater and isolated at the xmas tree.— Cont Umb Removed Reconnected to PN06.— Chem Umb DisconnectedPN06 Prod Don SW Nov 1994 2002 PL1073 Flowline Disconnected PN05 serviceable flexible flowline (PL981) and control umbilicalconnected and replacement SCM fitted (2000) following fishingdamage. PL981 became known as PL1073. Original damagedPL1073 flowline became known as PL981 and removed to shore fordisposal. Mothballing operations in May 2003 suspended due to lackof controls to subsea facilities. Pipeline isolated and depressurised atThistle. No PBU in flowline from PN06. Controls isolated. Flowlinefilled with inhibited seawater and isolated at the xmas tree.— Cont Umb Disconnected Original recovered and replaced by umbilical to PN05.PL1073A Chem Umb DisconnectedIN07 WI Don SW June 1996 2002 PL1338 Flowline Disconnected Leak tested and recommissioned (2000) following fishing activity.Mothballing operations in May 2003 suspended due to lack ofcontrols to subsea facilities. Pipeline isolated and depressurised atThistle. No PBU in flowline from IN07. Controls isolated. Flowlinefilled with inhibited seawater and isolated at the xmas tree.— Cont Umb DisconnectedDon Field Decommissioning Programme DON-BP-001