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.
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.
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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