| 发明名称 |
METHOD FOR FORMING A WINDOW IN A SUBSURFACE WELL CONDUIT |
| 摘要 |
A method for forming a window (45) in a subsurface well conduit (I) using a coiled tubing unit (46) together with standard rotary rig tools adopted for use with a coiled tubing unit, and a whipstock (62) with no wear projection on the guide surface (68) thereof, and controlling the angular relationship between the tools and the whipstock while forming the window.
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| 申请公布号 |
CA2142994(A1) |
申请公布日期 |
1994.04.28 |
| 申请号 |
CA19932142994 |
申请日期 |
1993.09.17 |
| 申请人 |
ATLANTIC RICHFIELD COMPANY;HAILEY, CHARLES D. |
发明人 |
BLOUNT, CURTIS G.;HAILEY, CHARLES D.;HIGHTOWER, CHARLES M. |
| 分类号 |
E21B7/06;E21B29/06;(IPC1-7):E21B33/00 |
主分类号 |
E21B7/06 |
| 代理机构 |
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