公开(公告)号：US20120205108A1

公开(公告)日：2012-08-16

申请号：US13188526

申请日：2011-07-22

申请人： Jonathan Michael STANG

发明人： Jonathan Michael STANG

IPC分类号： E21B43/114 ,  E21B29/06 ,  E21B37/00

CPC分类号： E21B21/103 ,  E21B43/114

摘要： There is disclosed an apparatus and a method of performing a plurality of operations in a wellbore with one direction of flow. In an illustrative example, a multicycle open/close valve (MCOCV) responsive to a plurality of flow rates is placed in a bottom hole assembly (BHA) and is used to perform abrasive perforating of a wellbore or cleanout of the wellbore using one direction of flow. At one or more first flow rates, the MCOCV is configured to operate in a first operating mode to abrasive perforate the wellbore. At one or more second flow rates, the MCOCV is configured to operate in a second operating mode to cleanout the wellbore. In an embodiment, the MCOCV includes a J-slot sequencing mechanism responsive to a sequence of flow rates to cycle the MCOCV through a plurality of operating modes.

摘要翻译： 公开了一种在具有一个流动方向的井眼中执行多个操作的装置和方法。 在一个示例性实例中，响应于多个流量的多周期开/关阀（MCOCV）被放置在井底组件（BHA）中，并且用于使用一个方向的井眼进行钻孔的磨蚀或清洁 流。 在一个或多个第一流速下，MCOCV被配置为在第一操作模式下操作以磨磨穿孔。 在一个或多个第二流量下，MCOCV被配置为在第二操作模式下操作以清洁井眼。 在一个实施例中，MCOCV包括响应于一系列流速的J时隙排序机制以通过多个操作模式循环MCOCV。