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.
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。
This adapter may be threaded or welded onto the casing, and may have a flanged or clamped connection to match the BOP stack or wellhead.
该接头也许是用螺纹与套管连接在一起，或焊接在一起，以及可能还有一个法兰或卡箍连接与防喷器组或井口配接。
Check modules are threaded into the valve adapter for leak proof operation.
止回阀模块通过螺纹旋进阀门适配器内，提供无泄漏运行。
Check modules are threaded into the valve adapter for leak proof operation.
止回阀模块通过螺纹旋进阀门适配器内，提供无泄漏运行。
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