2013年12月4日星期三

What exactly is The Oil casing pipe




Oil casing pipe is additionally named casing pipe, 1 regarding petroleum casing pipe, a vital tools associated with oil drilling. It is employed to support the oil and gas properly casing pipe, to make sure that the drilling process coupled with after completion related with the normal operation related with the well. Each a well based on different drilling depth and also geological issue, in order to use some levels relating to casing. Cementing, casing Wells following utilizing cement can not be used once more, belongs towards the one-time usage components. Casing can be divided by use: catheter and additionally Astm Seamless Steel Tube, the surface area casing, technology.


Oil casing tube is a type of huge diameter pipes, have set the part concerning oil and also gas Oil casing or gap. Casing is inserted into the hole not to mention fixed with cement, to be able to avoid the borehole coupled with separated strata borehole collapse, not to mention make sure the drilling mud circulating movement, in order that the drilling. In the way concerning oil production utilizing kinds of casing:guide bush - is principally utilized for Marine, drilling inside the desert, to separate water coupled with sand, guarantee drilling effortlessly;the surface Oil casing drilling - protecting it through the shallow layer and the shallow gasoline air pollution, and additionally supporting the wellhead gear coupled with retaining the opposite layer bodyweight associated with the casing; engineering about Oil Casing Pipe- separating the various ranges for stress, so that the line connected with drilling fluid circulation together with defending the normal creation casing, as a way to put in the drilling blowout gadget, blowout preventer together with tail pipe. Reservoir Oil casing-making oil all-natural fuel derived through the storage layer underneath the area associated with the earth, guarding the drilling.


Oil casing is to hold the lifeblood associated with any oil Wells. As a result of diverse geological circumstances, underground tension state is complex, rigidity, stress, bending, torsion tension mixture within the pipe entire body, which put forward larger demands about the good quality associated with the casing itself: requireing the casing corrosion resistance in corrosive atmosphere , exactly where the difficult geological situations also calls for casing collapse resistance. As soon as the casing injury thanks to some reason itself, may possibly guide to the manufacturing concerning the well, or even scrapped.


Domestic casing with geological drilling metal after scorching rolling and also chilly drawing, metal quality with "geological" (DZ) said that the commonly used casing steel quality DZ40, DZ55, DZ753 sorts. Petroleum Casing Pipe major importing countries: Germany, Japan, Romania, the Czech republic, Italy, Britain, Austria, Switzerland, the us, Argentina, Singapore have imported. According to the toughness associated with the steel by itself casing could be divided into different metal grade, specifically the J55 Oil casing tube, K55 Oil casing tube, N80 casing tube, API 5l Oil casing tube,etc.

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