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IPM ID IDPT PT
CAS ASIING & CEM ENTI NTING NG
Casing and Cementing
Functions of Casing
1. 2. 3. 4. 5. 6. 7.
Prevent cave-in or w ashout of the hole Prevent contamination betw een zones Exclude w ater from producing formations Confine production to the w ell bore Provide a means for controlling w ell pressure Provide a path for produced fluids Permit installation of artificial lift equipment
Casing and Cementing
Casing Types
Conductor Surface Intermediate Liner Production Casing and Cementing
Casing Properties Range – Indicates the length range Size – Indicates the OD of the casing W eight – Indicates the w eight per unit length of the pipe Connection – Indicates the design of t hreads and the coupling Grade – Indicates the strength
Casing and Cementing
Casing Accessories To ensure uniform distribution of cement around the pipe
To obtain complete seal betw e the casing and the formation
Centralizers
Casing and Cementing
Casing Accessories
Different t ypes of Sctatchers To remove filt er cake from the w all of t he hole
Casing and Cementing
Casing Accessories
Guide Shoe
Casing and Cementing
Casing Accessories
Float Shoe - Ball valve Casing and Cementing
Casing Accessories
FLOAT SHOE ALUMINIUM NOSE with FLAPPER VALVE and AUTOMATIC FILL-UP
FLOAT SHOE CEMENT NOSE with FLAPPER VALVE and AUTOMATIC FILL-UP
Casing and Cementing
Casing Accessories •
Float Collar; •
To reduce contamination around the shoe,
•
1-3 joints above shoe.
Insert Flapper Valve
Sure Seal
Casing and Cementing
Ball Valve
Casing Equipment
Casing Slips Pow er Tongs
Casing and Cementing
Casing Equipment Spider Elevator
Spider Slips
M anual Tongs
Casing and Cementing
Cementing Accessories •
Surface Equipment; •
Conventional Cement Head.
Single Plug Cement Head
Double Plug Cement Head Casing and Cementing
Cementing Accessories •
Wiper Plugs, Why? • • •
Separate Fluids, Wiping casing, Surface indication of placement.
Top Plug (Solid)
Bottom Plug (Hollow Inside)
Casing and Cementing
Cementing Accessories • •
Wiper Plugs •
Non-Rotating Plugs.
Casing and Cementing
Screen CD on Casing and Cement ing Cementing Sequence
Casing and Cementing
Cementing Volumes 2
Volume in bbl/ ft =
D 1029.4
2
Annular Volume in bbl/ ft = D d 1029.4
Casing and Cementing
2
Cementing Volumes
300’
13 3/8 “ casing Data Shoe @ 3765’ W eight of Casing – 72 lb/ ft 9 5/ 8” casing Data W eight of Casing – 53.5 lb/ft 80 ft shoe track
