材质 : | J55,K55 | 仓库所在城市 : | 河北沧州 |
仓库 : | 盐山供应开发区 | 质量等级 : | 正品(受理质量异议) |
加工服务 : | 深加工(冲压、折弯等),其他加工服务 | 配送服务 : | 可配送到厂 |
货物销售类型 : | 现货 | 用途范围 : | 金属制品,机械制造,建筑装饰,化工设备,食用机械,结构制管 |
产品表面描述 : | 光滑漂亮,无毛刺,无压痕 | 计重方式 : | 过磅 |
执行标准 : | API 5CT | 长度要求 : | R1,R2,R3 |
生产销售 N80地热井用石油套管 支撑井壁用J55石油套管 煤田地质J55石油套管 含税吨价,
Casing is easy to be corrosive in severe salinity formations,and the basic characteristics of corrosion is pitting,and corrosion shapes are mostly ellipsoid shape.After corrosion the casing wall is thinning,pitting will produce stress concentration,reduce the intensity of the casing,causea serious impact on oil production.By taking P110casing as the research object,elastic-plastic finite element method is used for static analysis of model after casing corrosion.Research shows that after the casing
corrosion to internal pressure and external pressure,the maximum stress and strain occur in the casing corrosion pit wall,two kinds of pressure stress and strain values are little different.As the change of casing corrosion degree,subjected to internal pressure and external pressure,the changing rule of casing maximum Von-Mises stress and the strain are similar.The main factors influencing the strength of casing are corrosion pit depth,namely with the increase of corrosion depth,casing compressive capacity is reduced obviously,and casing cracking pressure is more and more smaller,and the cracking pressure of internal pressure and external pressure is very close.
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