发明名称 |
METHOD FOR CREATING SECONDARY SIDETRACKS IN A WELL SYSTEM |
摘要 |
A method is disclosed for creating one or more secondary sidetracks in an oi l and/or gas well assembly which comprises a primary wellbore (2) and one or more primary sidetracks (6) so that a root-like multilateral well structure is created. The method makes use of an expandable well liner (9) in the primary sidetracks (6) so as to create a liner having a sufficient internal width to allow sidetracking equipment to be inserted and operated in the primary sidetrack to drill and complete the secondary sidetracks (7).
|
申请公布号 |
CA2357719(A1) |
申请公布日期 |
2000.08.10 |
申请号 |
CA20002357719 |
申请日期 |
2000.02.01 |
申请人 |
SHELL CANADA LIMITED |
发明人 |
SUREWAARD, JOHANNES HENRICUS GERARDUS;VAN BUREN, MARKUS ANTONIUS |
分类号 |
E21B41/00;E21B43/10;(IPC1-7):E21B43/10 |
主分类号 |
E21B41/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|