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公开(公告)号：US10975655B2
公开(公告)日：2021-04-13
申请号：US16199545
申请日：2018-11-26
IPC分类号： E21B33/128 , E21B33/129 , E21B33/12 , E21B34/06 , E21B23/06 , E21B29/02 , E21B33/134 , E21B43/116 , E21B43/14 , E21B43/26
摘要： A downhole apparatus for use in a tubular include a mandrel, a first slip, a cone, and a seal element. The mandrel, which can be permanent or temporary, has a first end shoulder. The first slip is disposed on the mandrel adjacent the first end shoulder, and the cone is disposed on the mandrel adjacent the first slip. The cone is movable relative to the first end shoulder to engage the first slip toward the tubular. The seal element is disposed on the mandrel adjacent the cone. At least a portion of the seal element is composed of a dissolvable metallic material and is expandable outward from the mandrel. The expanded portion of the seal element forms a metal seal against the tubular and seals off fluid communication in the annular space between the seal element and the tubular.
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公开(公告)号：US20200040680A1
公开(公告)日：2020-02-06
申请号：US16054855
申请日：2018-08-03
摘要： A downhole apparatus for use in a tubular includes a mandrel, a slip, a wedge, a cone, and seal elements. The mandrel, which can be permanent or temporary, has an end shoulder. The slip is disposed on the mandrel adjacent the first end shoulder, and the wedge is disposed on the mandrel between the cone and the slip. The cone is movable relative to the end shoulder to engage the slip toward the tubular. The seal elements are disposed on the wedge and slip and fit between each other. The fit seal elements seal against the tubular and seas off fluid communication in the annular space between the plug and the tubular.
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公开(公告)号：US10016918B2
公开(公告)日：2018-07-10
申请号：US14827460
申请日：2015-08-17
IPC分类号： E21B33/129 , B29C45/14 , E21B33/12
CPC分类号： B29C45/14 , E21B33/1216 , E21B33/1292
摘要： A downhole tool, such as a composite bridge plug, has a packing element disposed on a mandrel of the tool adjacent an activating element, such as a cone and slip arrangement. The packing element includes a packer and at least one backup ring. The packer is composed of packing material and is compressible on the downhole tool at least in part due to the activating element. The at least one backup ring limits extrusion of the packer. The at least one backup ring is molded into the packing material at one end of the packer adjacent the activating element. Preferably, each end of the packer has at least two backup rings molded therein, and slots in the adjacent backup rings are preferably offset at the ends.
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公开(公告)号：US20160061000A1
公开(公告)日：2016-03-03
申请号：US14827460
申请日：2015-08-17
IPC分类号： E21B33/129 , B29C45/14
CPC分类号： B29C45/14 , E21B33/1216 , E21B33/1292
摘要： A downhole tool, such as a composite bridge plug, has a packing element disposed on a mandrel of the tool adjacent an activating element, such as a cone and slip arrangement. The packing element includes a packer and at least one backup ring. The packer is composed of packing material and is compressible on the downhole tool at least in part due to the activating element. The at least one backup ring limits extrusion of the packer. The at least one backup ring is molded into the packing material at one end of the packer adjacent the activating element. Preferably, each end of the packer has at least two backup rings molded therein, and slots in the adjacent backup rings are preferably offset at the ends.
摘要翻译： 诸如复合桥塞的井下工具具有设置在工具的心轴上的填充元件，邻近激活元件，例如锥形和滑动装置。 包装元件包括封隔器和至少一个备用环。 封隔器由包装材料组成，并且由于活化元件至少部分地在井下工具上可压缩。 至少一个备用环限制封隔器的挤压。 所述至少一个支撑环在封隔器的与激活元件相邻的一端处被模制成包装材料。 优选地，封隔器的每端具有模制在其中的至少两个支撑环，并且相邻支撑环中的槽优选地在端部偏移。
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公开(公告)号：US11591881B2
公开(公告)日：2023-02-28
申请号：US17203968
申请日：2021-03-17
IPC分类号： E21B23/06 , E21B33/129
摘要： A downhole tool for use in a wellbore includes a cone, a cone adapter at least partially disposed in the cone, a shoe member, and a slip assembly disposed between the cone and the shoe member. A mandrel extends through the cone adapter and attached to the shoe member. The cone adapter is retrievable with the mandrel.
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公开(公告)号：US11454081B2
公开(公告)日：2022-09-27
申请号：US17618047
申请日：2020-06-23
摘要： A well barrier can include an inner mandrel, a flow passage, and a releasably secured plug. The plug blocks fluid flow through the flow passage, and includes a shoulder that prevents the plug from displacing completely through the inner mandrel. A method of treating a subterranean well can include treating a deeper zone, setting a well barrier in the well between the deeper zone and a shallower zone, then treating the shallower zone, and then applying a pressure differential from the deeper to the shallower zone, thereby displacing a plug out of the well barrier. A well treatment system can include a well barrier with a plug releasably secured to an inner mandrel. The plug is released by application of a pressure differential in a longitudinal direction, and fluid communication is unblocked by application of a pressure differential in an opposite longitudinal direction.
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公开(公告)号：US20220298883A1
公开(公告)日：2022-09-22
申请号：US17203968
申请日：2021-03-17
IPC分类号： E21B33/129 , E21B23/06
摘要： A downhole tool for use in a wellbore includes a cone, a cone adapter at least partially disposed in the cone, a shoe member, and a slip assembly disposed between the cone and the shoe member. A mandrel extends through the cone adapter and attached to the shoe member. The cone adapter is retrievable with the mandrel.
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公开(公告)号：US11319770B2
公开(公告)日：2022-05-03
申请号：US16911211
申请日：2020-06-24
IPC分类号： E21B33/129 , E21B23/01
摘要： A method and apparatus for a downhole tool including a retained object. The downhole tool includes a longitudinal axis, a cone including a seat having an opening, and a shoe member. The downhole tool further includes a slip assembly disposed between the cone and the shoe member. The downhole tool further includes a mandrel disposed in the opening of the seat. The downhole tool further includes an attachment member attaching the mandrel to the shoe member, wherein the attachment member is eccentric to the longitudinal axis. The downhole tool further includes a setting sleeve abutting the cone. The downhole tool further includes the object, wherein the object configured to engage with the seat, and wherein the object is disposed between the mandrel and the setting sleeve.
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公开(公告)号：US10415335B2
公开(公告)日：2019-09-17
申请号：US14739962
申请日：2015-06-15
IPC分类号： E21B23/01 , E21B33/129
摘要： A downhole tool, such as a fracture plug used during a fracture operation, installs in a downhole tubular, such as casing. The tool has a mandrel with a sealing element disposed thereon between uphole and downhole ends. Slip assemblies on the mandrel can be moved to engage the downhole tubular. When the tool is used as a bridge plug, the uphole assembly supports the sealing element compressed, and the downhole assembly supports fluid pressure downhole of the tool. The slip assemblies have inserts composed of at least two materials that are different from one another and are geometrically separate from one another. In addition or as an alternative, the slip assemblies can be composed of at least two different materials that are geometrically separate from one another.
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公开(公告)号：US20180328139A1
公开(公告)日：2018-11-15
申请号：US15593466
申请日：2017-05-12
发明人： Nauman H. Mhaskar
CPC分类号： E21B34/063 , E21B33/13 , E21B34/06 , E21B34/085 , E21B43/00 , E21B43/08 , E21B43/12 , E21B2034/002
摘要： An apparatus for controlling fluid flow in a borehole includes a basepipe and a flow device. The basepipe has a through-bore and defines at least one perforation. The throughbore conveys the fluid flow, and the at least one perforation communicates the through-bore outside the basepipe. The flow device comprises a barrier disposed at the at least one perforation. The barrier at least temporarily prevents fluid communication through the at least one perforation. The barrier is resistant to a pressure differential thereacross and is dissolvable over time. The barrier can include at least two elements composed of different materials, and an increase in the pressure differential across can further increase how the barrier prevents the fluid communication through the perforation.
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