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公开(公告)号：US20240344425A1
公开(公告)日：2024-10-17
申请号：US18752322
申请日：2024-06-24
发明人： Dmitry RIDNER
CPC分类号： E21B34/10 , E21B33/16 , E21B2200/04 , E21B2200/05
摘要： A float tool is used for controlling flow in tubing. The float tool comprises a housing, at least one valve, and at least one inset. The housing is configured to install on the tubing and has a longitudinal bore therethrough. The at least one valve is disposed in the longitudinal bore. The at least one valve is configured to allow the flow in a downbore direction through the longitudinal bore and is configured to prevent flow in a upbore direction through the longitudinal bore. The at least one inset is disposed in the longitudinal bore and is disposed downbore of the at least one valve. The at least one inset defines an orifice therethrough. The orifice has one or more vanes angled relative to the longitudinal bore. The one or more vanes are configured to produce turbulence in the flow in the downbore direction through the longitudinal bore.
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公开(公告)号：US12055013B2
公开(公告)日：2024-08-06
申请号：US18030857
申请日：2021-09-28
发明人： Dmitry Ridner
CPC分类号： E21B34/10 , E21B33/16 , E21B2200/04 , E21B2200/05
摘要： A float tool is used for controlling flow in tubing. The float tool comprises a housing, at least one valve, and at least one inset. The housing is configured to install on the tubing and has a longitudinal bore therethrough. The at least one valve is disposed in the longitudinal bore. The at least one valve is configured to allow the flow in a downbore direction through the longitudinal bore and is configured to prevent flow in a upbore direction through the longitudinal bore. The at least one inset is disposed in the longitudinal bore and is disposed downbore of the at least one valve. The at least one inset defines an orifice therethrough. The orifice has one or more vanes angled relative to the longitudinal bore. The one or more vanes are configured to produce turbulence in the flow in the downbore direction through the longitudinal bore.
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公开(公告)号：US12000239B2
公开(公告)日：2024-06-04
申请号：US18134440
申请日：2023-04-13
发明人： Carl D. Lindahl , Bandar S. Malki
CPC分类号： E21B33/165 , E21B33/146 , E21B34/063
摘要： An apparatus for flowing and mixing cement within a subterranean formation includes a housing, a flow control device, and baffles. The housing is configured to contain a cement additive. The housing includes a first end and a second end. The first end is configured to couple to a cement retainer. The flow control device is disposed at the second end of the housing. The baffles are disposed within the housing.
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公开(公告)号：US11994001B2
公开(公告)日：2024-05-28
申请号：US17742224
申请日：2022-05-11
申请人： Welltec A/S
发明人： Jacob Bay Olsen
IPC分类号： E21B33/16
CPC分类号： E21B33/16
摘要： A downhole method for preparing and/or providing isolation at a predetermined position in an existing well includes inserting a downhole tool comprising a bit on a projection part in a first well tubular metal structure, positioning the downhole tool opposite the predetermined position, separating an upper part of the first well tubular metal structure from a lower part of the first well tubular metal structure, moving the downhole tool along the longitudinal extension in the upper part to a second position, and separating a first part of the upper part of the first well tubular metal structure from a second part of the upper part of the first well tubular metal structure, thus providing an uncased opening between the second part of the first section and the second section.
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公开(公告)号：US20240110460A1
公开(公告)日：2024-04-04
申请号：US17958113
申请日：2022-09-30
IPC分类号： E21B33/16
CPC分类号： E21B33/16
摘要： A method may comprise introducing an ultrasonic device into a wellbore with a cement slurry therein; generating ultrasonic waves with the ultrasonic device, wherein at least a portion of the ultrasonic waves are transmitted into at least a portion of the cement slurry; creating cavitation within at least the portion of the cement slurry with at least the portion of the ultrasonic waves; and allowing the cement slurry to set to form a hardened mass.
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公开(公告)号：US20240092694A1
公开(公告)日：2024-03-21
申请号：US17903470
申请日：2022-09-06
CPC分类号： C04B20/1022 , C04B28/04 , C09K8/467 , C09K8/54 , C23C22/60 , C23C22/82 , E21B33/16 , C04B2111/26
摘要： This disclosure relates to methods of treating the surface of a metal casing, such as a casing used in a wellbore. The disclosure also relates to methods of increasing the bond strength between cement and a metal casing surface treated with a reactive organic compound.
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公开(公告)号：US20240044223A1
公开(公告)日：2024-02-08
申请号：US17881037
申请日：2022-08-04
IPC分类号： E21B33/16
CPC分类号： E21B33/16
摘要： A cementing operation cements casing in a borehole. A bottom plug pumped down the casing ahead of cement lands at a float valve. Circulation of the cement is established through the bottom plug to a shoe track downhole from the float valve. A top plug pumped down the casing behind the cement lands on the bottom plug. An internal component of the float valve is released by building-up pressure in the casing behind the internal component up to a release threshold. The internal component can latch at the shoe. At least some of the cement in the shoe track is displaced from the casing's shoe to the borehole by pumping the plugs and the internal component to the shoe. With the cement displaced out of the shoe track, the time required to drill out the assembly can be greatly reduced.
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公开(公告)号：US11873705B1
公开(公告)日：2024-01-16
申请号：US17969968
申请日：2022-10-20
发明人： Mohammed Sameer Almajed , Ahmed M. Alghuryafi , Zuhair Mohammed Alhassan , Nasser Mohammed Alhassan
IPC分类号： E21B33/13 , E21B43/26 , E21B33/134 , E21B33/16
CPC分类号： E21B43/261 , E21B33/134 , E21B33/165
摘要： A method of fracturing a rock formation includes cementing a production pipe to a wellbore within the rock formation, wherein a seat is attached to an inner surface of the production pipe. The method further includes forming access ports along a first section of the wellbore that fluidly connect the production pipe to the wellbore, delivering treatment fluid from the production pipe to the wellbore through the access ports, flowing formation fluid from the rock formation to the production pipe through the access ports, and closing an opening in the seat to isolate the first section of the wellbore from a second section of the wellbore located above the first section.
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公开(公告)号：US11814927B1
公开(公告)日：2023-11-14
申请号：US18064439
申请日：2022-12-12
发明人： Daniel L. Schmidt , Todd A. Stair
IPC分类号： E21B33/16
CPC分类号： E21B33/165
摘要： A system for establishing a bypass flow path includes a plug assembly having bypass ports extending from the exterior to the interior; a wiper dart to engage and seal the first flow path and bypass flow path, and initiate release of the plug assembly from a first position, the plug assembly having a dart nose attached to the dart body; once the plug has moved to a second position, pressure applied through the bypass ports communicates to the dart nose to cause detachment of the dart nose from the dart body; a first flow path extends through the central bore of the plug assembly when the wiper dart is not present; and a second flow path extends through the bypass ports on the plug assembly below the dart body to the detachable dart nose, once detached, the bypass flow path is established thru the bore below the dart body.
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公开(公告)号：US11732549B2
公开(公告)日：2023-08-22
申请号：US17111251
申请日：2020-12-03
发明人： Peter Ido Egbe
摘要： A method includes deploying a cementing assembly within a wellbore. The wellbore includes a loss circulation zone. The cementing assembly includes a work string and a liner assembly coupled to the work string. The liner assembly includes a polished bore receptacle, a liner hanger attached to a downhole end of the polished bore receptacle, a liner, and a cementing sub disposed between the liner hanger and the liner. The method includes anchoring the liner hanger on the casing of the wellbore, cementing an open hole annulus of the wellbore, and setting an annulus packer of the cementing sub on the. The method also includes cementing a casing annulus of the wellbore defined between an external surface of the cementing sub and a wall of wellbore.
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