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公开(公告)号：US20210363852A1
公开(公告)日：2021-11-25
申请号：US16478553
申请日：2019-07-16
发明人： Michael Linley Fripp , Stephen Michael Greci , Christopher Michael Pelto , Matthew Arran Willoughby
IPC分类号： E21B33/126 , E21B33/12
摘要： A packer has a constrained portion coupled to a mandrel and an unconstrained portion made of a swellable material and coupled to the constrained portion. The unconstrained portion is free to move with respect to the mandrel.
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公开(公告)号：US11795777B2
公开(公告)日：2023-10-24
申请号：US17179973
申请日：2021-02-19
IPC分类号： E21B33/12 , E21B33/127
CPC分类号： E21B33/1208 , E21B33/1277
摘要： Apparatus and methods are disclosed for securing a component, such as a sealing element, to a tubular member, such as a mandrel, of a downhole tool. In at least one example, a retaining ring is used to secure the component to a mandrel. The retaining ring is secured to the mandrel with a plurality of discrete retention segments disposed within a channel at least partially defined by an internal groove on the retaining ring and an external groove on the mandrel. The retention segments are individually insertable into the channel through an access opening on the retaining ring. A compression spring may be provided in the channel to provide compressive engagement of the retention segments. Various closure configurations are also disclosed for closing the access opening once the retention segments have been inserted.
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公开(公告)号：US20240318549A1
公开(公告)日：2024-09-26
申请号：US18679975
申请日：2024-05-31
CPC分类号： E21B47/18 , E21B47/138
摘要： Systems and methods for wireless downhole telemetry are provided. The system includes a tubular located in a wellbore; a pressure controller located at or near a surface of the wellbore to send a digital command via a change in a pressure applied to the tubular; and a receiver disposed in the wellbore, wherein the receiver includes a mechanical pressure switch to detect the change in the pressure applied to the tubular.
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公开(公告)号：US12000274B2
公开(公告)日：2024-06-04
申请号：US17134863
申请日：2020-12-28
CPC分类号： E21B47/18 , E21B47/138
摘要： Systems and methods for wireless downhole telemetry are provided. The system includes a tubular located in a wellbore; a pressure controller located at or near a surface of the wellbore to send a digital command via a change in a pressure applied to the tubular; and a receiver disposed in the wellbore, wherein the receiver includes a mechanical pressure switch to detect the change in the pressure applied to the tubular.
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公开(公告)号：US20240318550A1
公开(公告)日：2024-09-26
申请号：US18731240
申请日：2024-06-01
CPC分类号： E21B47/18 , E21B47/138
摘要： Systems and methods for wireless downhole telemetry are provided. The system includes a tubular located in a wellbore; a pressure controller located at or near a surface of the wellbore to send a digital command via a change in a pressure applied to the tubular; and a receiver disposed in the wellbore, wherein the receiver includes a mechanical pressure switch to detect the change in the pressure applied to the tubular.
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公开(公告)号：US11634964B2
公开(公告)日：2023-04-25
申请号：US16478553
申请日：2019-07-16
发明人： Michael Linley Fripp , Stephen Michael Greci , Christopher Michael Pelto , Matthew Arran Willoughby
IPC分类号： E21B33/126 , E21B33/12
摘要： Provided is an apparatus, as well as a method for establishing a seal between a mandrel and a borehole. The apparatus, in one aspect, includes a mandrel, and a packer, the packer including: a constrained portion coupled to the mandrel; and an unconstrained portion made of a swellable material and coupled to the constrained portion, wherein the unconstrained portion is free to move with respect to the mandrel. The apparatus, according to one aspect, further includes a spring positioned between the mandrel and the unconstrained portion and configured to urge the unconstrained portion away from the mandrel, the spring having a spring force less than a yield strength of the swellable material when the swellable material is in an unswelled condition.
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公开(公告)号：US20220205358A1
公开(公告)日：2022-06-30
申请号：US17134863
申请日：2020-12-28
摘要： Systems and methods for wireless downhole telemetry are provided. The system includes a tubular located in a wellbore; a pressure controller located at or near a surface of the wellbore to send a digital command via a change in a pressure applied to the tubular; and a receiver disposed in the wellbore, wherein the receiver includes a mechanical pressure switch to detect the change in the pressure applied to the tubular.
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公开(公告)号：US20220018207A1
公开(公告)日：2022-01-20
申请号：US17179973
申请日：2021-02-19
IPC分类号： E21B33/12
摘要： Apparatus and methods are disclosed for securing a component, such as a sealing element, to a tubular member, such as a mandrel, of a downhole tool. In at least one example, a retaining ring is used to secure the component to a mandrel. The retaining ring is secured to the mandrel with a plurality of discrete retention segments disposed within a channel at least partially defined by an internal groove on the retaining ring and an external groove on the mandrel. The retention segments are individually insertable into the channel through an access opening on the retaining ring. A compression spring may be provided in the channel to provide compressive engagement of the retention segments. Various closure configurations are also disclosed for closing the access opening once the retention segments have been inserted.
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