钻井油气层测试器是由液压动力短节、双packer短节、反向注入短节、数字泵抽短节、传感器短节和取样筒短节组成的。

Formation center tester (FCT) is made up of hydraulic power joint, double PACKER joint, opposing infuse joint, numeric pump exhausting joint, sensor joint and sampling tube joint.

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分析了实现在线浓缩取样的关键技术，研究了蓄能器预充压力和采样筒保压效果的关系。

Key techniques of on-line concentrated sampling are analyzed and relations of accumulator precharge pressure and pressure-retaining results are studied.

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捞砂筒也可用作业井底取样器。

The sand bailer is also used as a bottom hole sampler.

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