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What is casing drilling?how many types of ?what are the advantages of casing drilling?

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Question added by habib hammami , مهندس أول مراقب , التونسية للتنقيب
Date Posted: 2016/01/19
Firas Al-matook
by Firas Al-matook , Business Development Process Engineer , HEATEX AB

Casing is a tube (pipe) inserted in the borehole. It follows directly after cementing.There are mainly five types with different functions as follows:

1) Conductor

2) surface 

2) intermediate

4) production

5) liner  

Each casing type have different advantages but mainly casing is supporting the wellbore from collapsing.

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