发明公开
EP1132567A1 Hydrajet window cutting in well casing
审中-公开
Wasserstrahlschneiden einer Fensters在einer Bohrlochverrohrung
- 专利标题： Hydrajet window cutting in well casing
- 专利标题（中）： Wasserstrahlschneiden einer Fensters在einer Bohrlochverrohrung
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申请号： EP01302232.2申请日： 2001-03-12
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公开(公告)号： EP1132567A1公开(公告)日： 2001-09-12
- 发明人: Surjaatmadja, Jim B. , Keene, Gary T. , Grundmann, Steven R.
- 申请人： HALLIBURTON ENERGY SERVICES, INC.
- 申请人地址： P.O. Drawer 1431 Duncan Oklahoma 73536 US
- 专利权人： HALLIBURTON ENERGY SERVICES, INC.
- 当前专利权人： HALLIBURTON ENERGY SERVICES, INC.
- 当前专利权人地址： P.O. Drawer 1431 Duncan Oklahoma 73536 US
- 代理机构： Wain, Christopher Paul
- 优先权： US522935 20000310
- 主分类号： E21B29/06
- IPC分类号： E21B29/06 ; E21B43/114 ; E21B23/00
摘要：
Hydrajetting of fluid is used to cut a lateral window in a well casing for drilling a side track. Apparatus (30) comprises a mandrel (36) having a pin (50) received and movable within a J-slot (48) formed in a collar (38) around the mandrel. Movement of pin (50) in J-slot (48) guides movement of a jetting nozzle (44) of a jetting tool (42) such that a window (62) may be abrasively jetted in the well casing (14) in the general shape of the J-slot.
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