使用取芯钻头、取芯桶和岩心爪来完成取芯工作。

A core bit is used to accomplish this, in conjunction with a core barrel and core catcher.

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密闭取心工具主要由外螺纹接头、平衡活塞、限位接头、内外筒、卡箍岩心爪、定位销、密封头、及取心钻头等部件组成。

Sealing coring tools mainly consists of external threaded adapter, balance piston, limit joint, inner and outer barrel, core catcher, locating pin, sealing head and coring bit.

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根据科学钻探对岩心的特殊要求，认为金刚石取心钻头是科学深钻取心钻进较理想的选择。

Diamond core bit is preferred for coring operation in terms of the special requirements of scientific drilling.

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