发明名称 |
Full bore set down tool assembly for gravel packing a well |
摘要 |
A full bore set down tool assembly provides a housing attached to a packer in a wellbore and aligned with the production zone. A service tool of the tool assembly is attached to a tubing string extending to the surface and is adapted for selective, removable attachment to and positioning within the housing. The tool assembly defines a downstream flow path and a return flow path when the service tool is attached to the housing. A ball valve that is selectively shiftable from the surface opens and closes the return flow path to define a circulate position and a squeeze position. The housing, service tool, and ball valve also define a reverse position. The tool assembly facilitates gravel packing of the annulus between the wellbore casing and the service string including the tool assembly.
|
申请公布号 |
US6220353(B1) |
申请公布日期 |
2001.04.24 |
申请号 |
US19990302974 |
申请日期 |
1999.04.30 |
申请人 |
SCHLUMBERGER TECHNOLOGY CORPORATION |
发明人 |
FOSTER MICHAEL J.;ANYAN STEVEN L.;BISSONNETTE HAROLD STEVEN |
分类号 |
E21B34/00;E21B34/12;E21B43/04;(IPC1-7):E21B43/04 |
主分类号 |
E21B34/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|