Plug and Abandonment Basics - George E King Petroleum ...

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Laying Sand Plugs• Shut-in well for several hours to preventcrossflow disruption of plug.• Don’t bury the BHA with dumped sand• Tag frequently to avoid over-fill• Use a gel spacer in front of sand to prevent sandroping or falling down the hole. Rapid sand fallout can cause bridge off inside the CT.• Sand plugs are often used as a base for morestable plugs.3/14/2009 20George E. King EngineeringGEKEngineering.com
Sand fall rates in various fluids10/20 mesh sand 20/40 mesh sandFluid ft/min m/min ft/min m/minWF220 7.5 2.3 2.2 0.67WF240 2.05 0.62 0.49 0.15WF260 0.49 0.15 0.11 0.03Diesel 21.9 6.7 10.2 3.1Water 21.9 6.7 12.6 3.810/20 mesh Bauxite 20/40 mesh BauxiteFluid ft/min m/min ft/min m/minWF220 14.4 4.4 4.1 1.2WF240 4.1 1.2 1 0.3WF260 1 0.3 0.24 0.07Diesel 33.7 10.3 16.9 5.2Water 33.7 10.3 20 6.13/14/2009 George E. King EngineeringGEKEngineering.com21Source – D/S Field Book
Page 1 and 2: Plug and Abandonment - Producing We
Page 3 and 4: Abandonment Types• P&A - plugged
Page 5 and 6: Well damage increases the P&A cost
Page 7 and 8: Legislative Drivers• Safe Water D
Page 9 and 10: Requirements• Plug thickness (hei
Page 11 and 12: Materials Used in Abandonment• Ce
Page 13 and 14: Cement Plugs• Cement slurry desig
Page 15 and 16: Setting a cement plug• Not as eas
Page 17 and 18: Cement Plug FailureMany cement plug
Page 19: Diverter Plug on End of TubingA sim
Page 23 and 24: General Requirements• Onshore - 1
Page 25 and 26: Isolation of Open Hole• Cement Pl
Page 27 and 28: Isolation of lap joints or liner to
Page 29 and 30: Identifying Channels in Cement Shea
Page 31 and 32: Abandonment Gun Systems for Large C
Page 33 and 34: Testing of Plugs• Location of the
Page 35 and 36: Disclaimer• These slides are very
Page 37: References on Cement Channel Locati

Plug and Abandonment Basics - George E King Petroleum ...

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