The outer portions of the float shoe are made of steel and generally match the casing size and threads, although not necessarily the casing grade.
浮鞋的外壁由钢制成，且一般与套管的尺寸和丝扣匹配，然而浮鞋的钢级不一定要与套管钢级一致。
The float shoe prevents reverse flow, or U-tubing, of cement slurry from the annulus into the casing.
浮鞋能够防止环空中的水泥浆向套管内流动这种回流或者U型管效应的发生。
The float shoe also guides the casing toward the center of the hole to minimize hitting rock ledges or washouts as the casing is run into the wellbore.
当下套管时，浮鞋同样能够引导套管到井眼中心，减少套管对岩石突起或者井眼冲刷段的撞击。
A float collar is placed at the top of the float joint and a float shoe placed at the bottom to prevent reverse flow of cement back into the casing after placement.
浮箍是放置于浮动接头之上的，而浮鞋则是放置于浮动接头之下，以防止水泥浆回流到套管内。
The configuration and principle of anti rotary plug and necessary float collars and their applications in intermediate casing cementing are introduced.
介绍了防转胶塞及配套浮箍的结构、原理和在技术套管固井中的应用情况。
The built-in float pin rod comprises a hard and a soft slide rod, and moves only in the hollow holding handle, the bending spring, and the hollow casing for the rod body.
内置式浮动销杆又由硬体滑杆和软体滑杆组成，浮动销杆只能在空心的握柄、弯力弹簧和空心的竿身套管内移动。
The rod was a bamboo pole, the hook was converted from a paper pin, the string was cotton sewing thread, the float pulled from a broom, and tooth-paste casing boiled and shaped into a plummet.
竹竿就是鱼杆，大头针就是鱼钩，缝纫机线就是钓鱼线，芒草扫帚抽一根出来切出一截就是鱼漂，而牙膏壳就烧制成铅锤。
The rod was a bamboo pole, the hook was converted from a paper pin, the string was cotton sewing thread, the float pulled from a broom, and tooth-paste casing boiled and shaped into a plummet.
竹竿就是鱼杆，大头针就是鱼钩，缝纫机线就是钓鱼线，芒草扫帚抽一根出来切出一截就是鱼漂，而牙膏壳就烧制成铅锤。
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