作者: Patrick C. Knight
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摘要: The well screen two step coupled connector and method includes providing a with then walled tubular pin having constant diameter channel three sections of successively increasing diameter. end the has an annular surface angled recess is provided between intermediate innermost sections, while non-inclined external threads are formed on sections. A open ended coupling passage divided into by inwardly projecting divider. Each section configured to receive mate threads. wall adjacent divider provide seal at projection which fits within forms in pin.