发明授权
- 专利标题: SHOE WITH EARTH FORMATION DISIPLACING STRUCTURE
- 专利标题(中): 与地驱结构SHOE
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申请号: EP01911022.0申请日: 2001-02-21
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公开(公告)号: EP1362159B1公开(公告)日: 2007-04-25
- 发明人: MOSING, Donald, E. , SIPOS, David, L.
- 申请人: Frank's International, Inc. , Mosing, Donald , Sipos, David L.
- 申请人地址: Suite 300, 11700 Old Katy Road Houston, TX 77079 US
- 专利权人: Frank's International, Inc.,Mosing, Donald,Sipos, David L.
- 当前专利权人: Frank's International, Inc.,Mosing, Donald,Sipos, David L.
- 当前专利权人地址: Suite 300, 11700 Old Katy Road Houston, TX 77079 US
- 代理机构: Anderson, Angela Mary
- 国际公布: WO2002068790 20020906
- 主分类号: E21B17/14
- IPC分类号: E21B17/14
摘要:
A drive shoe (10) for penetrating soil is a larger size than a conductor pipe (11) and connected to the bottom section of the conductor pipe. An exterior band (40) is mounted on the outer diameter and proximate the lower end of the drive shoe. Teeth (28) are spaced at a predetermined interval and extending form and forming the bottom of the drive shoe to enhance penetration into earth formations. The teeth (28) are formed by cutting a beveled section such that the bevel is angled from the drive shoe outer surface towards the drive shoe inner surface. The drive shoe may also have an inner band (41) mounted on the inner surface to further compress the soil away form the interior surface of the drive shoe.
公开/授权文献
- EP1362159A1 SHOE WITH EARTH FORMATION DISIPLACING STRUCTURE 公开/授权日:2003-11-19
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