发明名称 |
Drilling subsurface wellbores with cutting structures |
摘要 |
A system for forming a wellbore includes a drill tubular. A drill bit is coupled to the drill tubular. One or more cutting structures are coupled to the drill tubular above the drill bit. The cutting structures remove at least a portion of formation that extends into the wellbore formed by the drill bit.
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申请公布号 |
US7841425(B2) |
申请公布日期 |
2010.11.30 |
申请号 |
US20080106115 |
申请日期 |
2008.04.18 |
申请人 |
SHELL OIL COMPANY |
发明人 |
MANSURE ARTHUR JAMES;GUIMERANS ROSALVINA RAMONA |
分类号 |
E21B43/24;E21B7/00 |
主分类号 |
E21B43/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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