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发明名称
Diverter system
摘要
There is disclosed a system for use in drilling subsea wells from platforms wherein drilling fluids may be diverted at either of two levels beneath the rotary table of the platform.
申请公布号
US5211228(A)
申请公布日期
1993.05.18
申请号
US19920867324
申请日期
1992.04.13
申请人
DRIL-QUIP, INC.
发明人
WATKINS, BRUCE J.
分类号
E21B21/00;E21B21/01;E21B33/035
主分类号
E21B21/00
代理机构
代理人
主权项
地址
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