发明名称 |
DOWNHOLE APPARATUS AND METHOD |
摘要 |
<p>A downhole tool (32) comprises a tool housing (34) defining a central bore (35) and including a fluid port (20), and a valve member (40) mounted within the housing (34) and being moveable from a closed position in which the fluid port (20) is blocked to an open position in which the fluid port (20) is opened. The tool (32) further comprises a catching arrangement (41) mounted within the housing (34) and comprising one or more radially moveable seat members (106), and being configurable from a free configuration in which the seat members (106) permit an object (48) to pass through the tool (32), to a catching configuration in which the seat members (106) catch an object (48) passing through the tool (32).</p> |
申请公布号 |
EP2880251(A2) |
申请公布日期 |
2015.06.10 |
申请号 |
EP20130745876 |
申请日期 |
2013.07.31 |
申请人 |
PETROWELL LIMITED |
发明人 |
PURKIS, DANIEL GEORGE;WEBSTER, OLIVER;PATTON, DAMIEN GERARD;MANNING, MATTHEW;CORBETT, STEVE;DUNCAN, IAN;PORTA, SANTIAGO GALVEZ |
分类号 |
E21B21/10;E21B23/04;E21B34/14;E21B43/14;E21B43/26 |
主分类号 |
E21B21/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|