Notesale: Turn your study into money

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Casing and
Cementing
a Well
November 2012

As the last few editions of PatchWorks have explained, there are many steps in the
lifecycle of a well which includes moving a rig onto a well site and drilling a well
...
So what is casing and
cementing? And what does it do?
After a well has been drilled and it has been determined that it will produce oil or gas, the
well will be cased
...
Casing itself is large diameter pipe and there are several
different types used in the completion of every well
...


Casing tubes are fabricated in sections that
are usually about 40 feet long and screwed
together to form longer lengths of casing
called casing strings
...

(Source: Rigzone)
A type of cement known as cement slurry is
then pumped into the well and allowed to
harden permanently to fix the casing in place
...
(Source: Rigzone)

PatchWorks is part of
PSAC’s Public Outreach
Program, designed to
strengthen the
partnership between the
oil and gas industry and
the communities where
we operate
...


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Coming up in
PatchWorks Reclamation

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For other PatchWorks
articles and more oil
and gas information,
please visit:
www
...
ca

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Please send your
PatchWorks questions
and article ideas to:
pw@oilandgasinfo
...

Surface casing - isolates freshwater zones, so that they are not contaminated during
drilling and completion
...
(Source: Schlumberger Oilfield Glossary)
Production casing or Production tubing - the last casing inserted into the well
...
Production tubing is
designed for efficient and safe installation, as well as removal

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