WELL COMPLETION
Copyright 2007, , All rights reserved
SINGLE COMPLETION WITH CEMENTED AND PERFORATED
CASING
Surface
Casing
Production Tubing
Casing
Packer
Perforated
Interval
RESERVOIR
Copyright 2007, , All rights reserved
COMPLETION WITH CEMENTED AND PERFORATED
CASING
Advantage:
• Selective production
• Zonal Isolation
• Water/Gas Shut-off
Disadvantage:
• Extra cost (casing and cement, perforation)
• Formation Damage
Application:
• Consolidated formation.
• Multi reservoirs with different pressures.
• When dual Completions are required
Copyright 2007, , All rights reserved
OPEN HOLE
COMPLETION
Surface
Casing
Production Tubing
Casing
Packer
RESERVOIR
Copyright 2007, , All rights reserved
OPEN HOLE
COMPLETION
Advantage:
• Simple
• Saving in cost and time
Disadvantage:
• No selective control
• Difficult to isolate water or gas Breakthrough
• Cross flow can not be controlled
• Not suitable for unstable Formation
Application:
• Low cost/multi well developments
• Deep consolidated wells.
• Naturally Fractured reservoirs.
Copyright 2007, , All rights reserved
OPEN HOLE COMPLETION WITH
SLOTTED, PERFORATED OR SCREEN
LINER
SURFACE TUBING
CASING
PACKER
PRODUCTION LINER HANGER
CASING
SLOTTED,PERFORATED OR
SCREEN LINER
RESERVOIR
Copyright 2007, , All rights reserved
OPEN HOLE COMPLETION WITH
SLOTTED, PERFORATED OR SCREEN
LINER
Advantage:
• Simple
• Cheeper than cemented casing
• Sand control
Disadvantage:
• No selective control
• Difficult to isolate water or gas Breakthrough
• Cross flow can not be controlled
• Not suitable for unstable Formation
Application:
• Sandy wells (stable formation)
• Horizontal wells completion.
Copyright 2007, , All rights reserved
OPEN HOLE GRAVEL PACK COMPLETION
SURFACE TUBING
CASING
PACKER
PRODUCTION LINER HANGER
CASING
SLOTTED,PERFORATED OR
SCREEN LINER
GRAVEL PACK
RESERVOIR
Copyright 2007, , All rights reserved
OPEN HOLE GRAVEL PACK COMPLETION
WITH UNDERREAMED HOLE
Tubing
Packer
Liner Hanger
Production Casing
Slotted, Perforated Underreamed hole
or Screen Liner
RESERVOIR
Gravel
Copyright 2007, , All rights reserved
INSIDE CASING GRAVEL PACK COMPLETION
Tubing
Packer
Liner Hanger
Slotted, Perforated Production Casing
or Screen Liner Perforations
RESERVOIR
Gravel
Copyright 2007, , All rights reserved
FRAC AND PACK COMPLETION
Tubing
Packer
Liner Hanger
Slotted, Perforated Production Casing
or Screen Liner Perforations
RESERVOIR
Gravel Hydraulic Fracture
Copyright 2007, , All rights reserved
UNDERREAMED CASING GRAVEL PACK
COMPLETION
Tubing
Packer
Production Casing
Slotted, Perforated
or Screen Liner Underreamed Casing/Hole
RESERVOIR
Gravel
Copyright 2007, , All rights reserved
SELECTIVE COMPLETION
SLIDING SLEEVES
ZONE 1
ZONE 2
ZONE 3
Copyright 2007, , All rights reserved
Producing a Zone between Packers
Top Packer
OPEN CLOSED
Sliding Sleeve
Perforated Bottom Packer
Interval
Anim. 1
Copyright 2007, , All rights reserved Anim. 2
