发明名称 |
Methods and associated apparatus for drilling and completing a wellbore junction |
摘要 |
Apparatus and methods are provided which enhance drilling and completion of wellbore intersections. In a described embodiment, a cutting tool diverter is used to drill a branch wellbore extending outwardly from a main wellbore. The diverter is provided with an outer easily millable portion which reduces the amount of time needed to retrieve the diverter. In another embodiment, a substance is injected into a formation surrounding the intersection of the main and branch wellbores, to thereby facilitate sealing of the intersection.
|
申请公布号 |
US6786283(B2) |
申请公布日期 |
2004.09.07 |
申请号 |
US20020246908 |
申请日期 |
2002.09.19 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
FREEMAN TOMMIE A.;LONGBOTTOM JAMES R. |
分类号 |
E21B7/06;E21B7/08;E21B23/12;E21B29/06;E21B41/00;(IPC1-7):E21B7/08 |
主分类号 |
E21B7/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|