捞砂筒也可用作业井底取样器。
从井底去除砂子和碎片所用的由钢丝绳起下的捞砂筒。
A wireline bailer that is used to remove sand and debris from the bottom of a well.
捞砂筒为一个5英尺圆筒，它在大气压力下被下入井内。
The bailer is a 5-ft cylinder that is lowered into the well under atmospheric pressure.
在井底，在圆筒底部的剪切圆盘由震击而断裂，流体和碎片流入捞砂筒。
On the bottom of the well, a shear disk on the bottom of the cylinder is broken by jarring, and fluids and debris flow into the bailer.
在井底，在圆筒底部的剪切圆盘由震击而断裂，流体和碎片流入捞砂筒。
On the bottom of the well, a shear disk on the bottom of the cylinder is broken by jarring, and fluids and debris flow into the bailer.
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