发明名称 Configurable bridge plugs and methods for using same
摘要 An insert for a downhole plug for use in a wellbore is provided, comprising a body having a bore at least partially formed therethrough, wherein one or more threads are disposed on an outer surface of the body for engaging the plug; and at least one interface is disposed on an end of the body for connecting to a tool to screw the insert into at least a portion of the plug.
申请公布号 US9109428(B2) 申请公布日期 2015.08.18
申请号 US201113194820 申请日期 2011.07.29
申请人 发明人 Frazier W. Lynn
分类号 E21B33/129;E21B33/134;E21B34/06;E21B34/14 主分类号 E21B33/129
代理机构 Edmonds & Nolte, P.C. 代理人 Edmonds & Nolte, P.C.
主权项 1. A plug for isolating a wellbore, comprising: a mandrel having a bore formed therethrough; at least one sealing element about the mandrel; at least one slip about the mandrel; at least one conical member about the mandrel; a shear element located within the mandrel for engaging a setting tool that enters the bore of the mandrel through an upper end of the mandrel; an insert at least partially within the bore of the mandrel beneath the shear element and between the shear element and the sealing element, the insert comprising: a body having a bore formed completely therethrough or a bore formed only partially therethrough;at least one circumferential groove formed in an outer surface of the body, wherein the at least one circumferential groove is adapted to retain an elastomeric seal; andone or more threads on the outer surface of the body for securing the insert into the mandrel,wherein the insert remains at least partially within the bore of the mandrel after the shear element shears and releases the setting tool.
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