文档介绍：CEMENTING
Casing strings are
cemented to isolate zones
and support the casing
© 2008 PetroSkills LLC, All Rights Reserved
Cementing
Not the cement trucks used to cement casing
2 © 2008 PetroSkills LLC, All Rights Reserved
Cementing
CthCement has many uses ildittiincluding construction
3 © 2008 PetroSkills LLC, All Rights Reserved
Cementing
Cement is used to isolate zones
4 © 2008 PetroSkills LLC, All Rights Reserved
Cementing
We use portland
cement to
isolate zones
and to support
the casing
5 © 2008 PetroSkills LLC, All Rights Reserved
Cementing
Oil well cementing equipment
6 © 2008 PetroSkills LLC, All Rights Reserved
Cementing
In the oil industry, we pump
ceceetdoment down tethe in sdeoteside of the
casing and up the annulus
7 © 2008 PetroSkills LLC, All Rights Reserved
Cementing
We must be able
to design the
cement to
withstand high
pressures and
temperatures
8 © 2008 PetroSkills LLC, All Rights Reserved
Cementing
Sometimes
cement must be
a low enough
density to
prevent lost
circulation and
contain lost
circulation
material
9 © 2008 PetroSkills LLC, All Rights Reserved
Cementing
Cement is made
of Limestone
and clay or
shale mixed in
the right
proportions
Each run may be
slightly different
due to impurities
10 © 2008 PetroSkills LLC, All Rights Reserved