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发明名称
PARTIAL COIL-IN-COIL TUBING
摘要
<p>A dual tubing coiled tubing string, including methods of assembly, that includes an inner tubing (IT) sealed by a seal (SL) within at least an upper portion of an outer tubing (OT).</p>
申请公布号
WO2001020213(A1)
申请公布日期
2001.03.22
申请号
US1999020822
申请日期
1999.09.10
申请人
发明人
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主分类号
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