FF型钻具浮阀 .doc

FF型钻具浮阀 FF型是一种新型的钻具内防喷器。它在正常钻井时，阀盖打开，钻井液畅通循环。当井下发生井涌或者井喷时，阀盖关闭达到防喷目的。起下钻作业时，防止钻井液回流，阻止泥沙进入钻柱，起到防堵作用。是钻井作业中防喷防堵的专用工具。 Drilling Tool Float Valve Type FF Drilling tool float valve type FF is a new-style drilling tool inside blowout prevent. During normal drilling, valve open, drilling fluid circulation clearly while downhole happen to kick or blowout. The valve cap shut off in order to achieve blowout prevention. When tripping in or out, it preventing drilling fluid flowing from back and prevent mud entering into the drill string, realize the function of preventing block. It is a special tool for preventing blowout and block in drilling operation.??????? 型号 　 Model 径O.D. （mm） 水眼直径I.D. 　 （mm） 上端接头螺纹Upper joint thread API 下端接头螺纹Bottom joint thread API 总 长Overall length mm） 浮阀芯代号Float valve wick code 　 Max. working pressure MPa 工作环境Working conditions 　 FF/330330-0 121.5 46 3 1/2REG 3 1/2REG 282 FFX53-0 35-70 石油、天然气、泥浆 petroleum、natural gas、mud FF/330×310-0 121.5 46 3 1/2REG NC38 282 FFX53-0 35-70 FF/430×4A10-0 159.5 54 4 1/2REG NC46 364 FFX72-0 35-70 FF/410×4A10-0 159.5 70 NC50 NC46 331 FFX88-0 35-70 FF/630×630-0 210.5 70 6 5/8REG 6 5/8REG 428 FFX122-0 35-70 FF/730×630-0 241.5 75 7 5/8REG 6 5/8REG 434 FFX122-0 35-70 FF/730×730-0 241.5 75 7 5/8REG 7 5/8REG 434 FFX122-0 35-70 我厂可按用户要求设计制造其它系列规格产品。 According to customer requirements, we can design and manufacture other serial specification products.