Which Types of OCTG Casing Do You Use in Oil Drilling

OCTG casing is a kind of large diameter pipes, which can play a certain effect in fixing oil or natural gas borehole wall and drilling hole in the process of mining. For the use of steel pipe casing, first insert into the well hole, then fix it with cement or in order to prevent the borehole, it can separate strata indirectly; or the borehole may appear collapse, it can guarantee the drilling mud have full activity space inside. Meanwhile in order to drill for the oil exploit, we can choose different OCTG pipes according to different cases in the process of drilling.

Now, in the process of work, the main reason is that how we protect the steel pipe casing in the process of using OCTG casing in order to avoid pollution by shallow layer or shallow gas pollution damage in the drilling process. Meanwhile to keep OCTG casing without weight problems with other casing pipe in the wellhead equipment. For the technology steel pipe casing, we can carry on the separation of different level of stress to guarantee normal operation and make drilling fluid in OCTG pipe outflow smooth, which just protect the steel pipe casing. In order to blowout preventer, we install some anti burst device in the drilling.

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