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2. 发明公开

EP2250339A2 DONHOLE ACTUATOR TOOL 有权转让
标题翻译： DONHOLE ACTUATOR工具
公开(公告)号：EP2250339A2
公开(公告)日：2010-11-17
申请号：EP09714747.4
申请日：2009-02-19
申请人： Petrowell Limited
发明人： CHRISTIE, Stewart , LIPP, Niall
IPC分类号： E21B34/10 , E21B41/00
CPC分类号： E21B23/00 , E21B23/04 , E21B33/1295 , E21B41/00
摘要： A pressure actuable downhole tool (18) such as a packer and a method for actuating the same typically uses a control line to trigger a configuration change in the tool in which a communication line (81) is opened between the throughbore (11) of the tool and apressure responsive actuator, allowing the pressure responsive actuator (270, 80) to be set by downhole fluid pressure applied via the throughbore. Thus the pressure from the control line is used to trigger actuation of the tool, but the throughbore pressure is used to set the tool. The advantage of this activation mechanism is that the tool can be set even when pressure supplied by the control line is insufficient to fully actuate or set the tool, and in certain embodiments, the tool can be set using much higher tubing pressure than could be supplied through the control line, thereby allowing more reliable and instantaneous setting than tools set using control line pressure alone.
摘要翻译：诸如封隔器的可压力致动的井下工具（18）及其致动方法典型地使用控制线来触发工具中的构造变化，其中通信线路（81）在通孔（11）的通孔工具和压力响应致动器，允许压力响应致动器（270,80）通过经由通孔施加的井下流体压力来设定。因此来自控制线的压力被用于触发工具的致动，但通孔压力被用于设定工具。该启动机构的优点在于，即使当由控制线提供的压力不足以完全致动或设定工具时，工具也可以被设定，并且在某些实施例中，工具可以使用比可以提供的高得多的管压通过控制线，从而比单独使用控制管线压力设置的工具更容易实现更可靠的设置。

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