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公开(公告)号：US12116850B1
公开(公告)日：2024-10-15
申请号：US18509497
申请日：2023-11-15
申请人： PETROMAC IP LIMITED
IPC分类号： E21B17/10
CPC分类号： E21B17/1028 , E21B17/10 , E21B17/1021 , E21B17/1078
摘要： A device for centering a sensor assembly in a bore has three or more bow-spring assemblies spaced circumferentially apart around a longitudinal axis of the device and pivotally attached between first and second support members. Each bow-spring assembly comprises two or more bow-springs stacked together in a bow-spring stack, with each bow-spring in the bow-spring stack extending between first and second pivot members pivotally attached to the first and second support members.
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公开(公告)号：US11913291B2
公开(公告)日：2024-02-27
申请号：US17437649
申请日：2021-08-05
申请人： PETROMAC IP LIMITED
CPC分类号： E21B17/1021 , E21B17/1057 , E21B23/14
摘要： A centraliser comprises a mandrel, a first support member, a second support member, and a plurality of arm assemblies connected between the first and second support members. Each arm assembly comprises a first arm pivotally connected to the first support member at a first pivot axis and a second arm pivotally connected to the second support member at a second pivot axis, and the first and second arms pivotally connected together at a third pivot axis. The mandrel comprises a plurality of facets spaced apart around an outer surface of the mandrel to rotationally key the first and/or second support member to the mandrel, and each arm assembly is arranged so that the third pivot axis is located on a first side of a plane coincident with a central axis of the device and the first and second pivot axes are located on an opposite second side of the plane.
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公开(公告)号：US11873692B2
公开(公告)日：2024-01-16
申请号：US17805694
申请日：2022-06-07
申请人： PETROMAC IP LIMITED
IPC分类号： E21B23/14 , E21B47/01 , E21B17/10 , F16N9/04 , F16N17/00 , E21B47/00 , F16N11/10 , F16N13/00 , E21B23/00
CPC分类号： E21B23/14 , E21B17/10 , E21B17/1042 , E21B17/1057 , E21B47/00 , E21B47/01 , F16N9/04 , F16N17/00 , E21B23/001 , F16N11/10 , F16N2013/003
摘要： The disclosure relates to a sensor transportation apparatus to convey an elongate sensor assembly through a wellbore. The sensor transportation apparatus comprises at least one engagement structure to connect the sensor transportation apparatus to the sensor assembly, and a pair of wheels arranged to rotate about an axis of rotation substantially perpendicular to a longitudinal axis of the sensor assembly when the transportation apparatus is connected to the sensor assembly, and an orientation structure comprising at least one orientation projection, in a transverse outline of the sensor transportation apparatus a said orientation projection extending between the pair of wheels so that the shortest distance between a centre of mass of the elongate sensor assembly and the wellbore wall is when the pair of wheels are in contact with the wellbore wall.
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公开(公告)号：US11718897B2
公开(公告)日：2023-08-08
申请号：US17714518
申请日：2022-04-06
申请人： CRS HOLDINGS, LLC
发明人： Stephane Forsik , Alberto Polar-Rosas , Tao Wang , Samuel Kernion , Mario Epler , Ning Zhou
CPC分类号： C22C19/07 , C22C19/056 , C22C19/057 , C22C30/00
摘要： A precipitation hardenable, cobalt-nickel base superalloy is disclosed. The is characterized by the following weight percent composition.
C
about 0.01 to about 0.15
Cr
about 6.00 to about 15.00
Ni
about 30.00 to about 45.00
W
about 3.00 to about 15.00
Ti
about 0.50 to about 4.00
Al
about 3.00 to about 7.00
Nb
up to about 2.50
Ta
up to about 6.00
Hf
up to about 1.50
Zr
up to about 1.50
B
up to about 0.20
Mo
up to about 2.50
Si
up to about 1.50
The balance of the alloy is cobalt and usual impurities. The alloy provides a novel combination of strength and ductility after long-term exposure to elevated operating temperatures as found in gas turbines and jet engines. A fine-grain steel article made from the alloy is also disclosed. The steel article is also characterized by a continuous surface layer of Al2O3 and Cr2O3 that protects the alloy from oxidation at the elevated operating temperatures.-
公开(公告)号：US11591825B2
公开(公告)日：2023-02-28
申请号：US16624987
申请日：2018-06-21
发明人： Philip Richard Kenny
摘要： A sliding door handle and strike assembly includes a locking member for engaging the strike to prevent the door from opening. The locking member is biased to an unlocked position, until it is moved into a locking position, in which magnetic co-operation acts to hold the locking member in the locking position.
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公开(公告)号：US11371306B2
公开(公告)日：2022-06-28
申请号：US16801901
申请日：2020-02-26
申请人： PETROMAC IP LIMITED
IPC分类号： E21B23/14 , E21B47/01 , E21B17/10 , F16N9/04 , F16N17/00 , E21B47/00 , F16N11/10 , F16N13/00 , E21B23/00
摘要： The disclosure relates to a carriage apparatus for carrying a tool string down a wellbore in a wireline logging, and an orientation apparatus and hole finder device for a wireline logging tool string. In some embodiments the carriage includes a protection structure which extends longitudinally around a wheel of the apparatus to thereby prevent a side of the wheel from contacting a wall of the wellbore. In some embodiments an orientation apparatus and hole finder are arranged so that the orientation apparatus orientates the hole finder device in the wellbore so that a tip of a nose section of the hole finder is elevated above a low side of the wellbore by a height and offset from and above a longitudinal axis of the tool string.
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公开(公告)号：US11285281B2
公开(公告)日：2022-03-29
申请号：US15926393
申请日：2018-03-20
摘要： A resuscitation device is disclosed that includes a pump having a cylinder with a gas inlet and a gas outlet, a piston to travel in the cylinder, and a valve. The valve is configured to allow gas to be displaced into the cylinder through the gas inlet during a first stroke direction and second stroke direction of the piston in the cylinder, and for allowing gas to be displaced through the gas outlet during an opposite of the first stroke direction and second stroke direction of the piston in the cylinder; a motor, selected from one of a stepper motor, a feedback motor, a stepper motor with feedback, and a linear motor, connected to the piston to move the piston in the cylinder; and a patient interface in fluid connection with the pump to receive gas via the gas outlet and to deliver the gas to a patient.
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公开(公告)号：US11136880B1
公开(公告)日：2021-10-05
申请号：US17193036
申请日：2021-03-05
申请人： PETROMAC IP LIMITED
IPC分类号： E21B47/017 , E21B17/10
摘要： A device for centering a sensor assembly in a bore comprises a plurality of arm assemblies connected between first and second support members. Each arm assembly comprises a first arm pivotally connected to the first support member by a first pivot and a second arm pivotally connected to the second support member by a second pivot joint. A beam is connected between the first and second arms, the first arm pivotally connected to the beam by a third pivot joint and the second arm pivotally connected to the beam by a fourth pivot joint. A wheel is rotationally mounted to the beam on a rotational axis located axially between the third and fourth pivot joints to contact a wall of the bore in use. A third arm is pivotally connected to the first support member by a fifth pivot joint having a fifth pivot axis axially spaced from the first pivot axis, and is pivotally connected to the beam by a sixth pivot joint having a sixth pivot axis. The third arm is configured so that the wheel is maintained at a radial extremity of the device as the first arm and second arm pivot relative to the first and second support members to move the wheel between a maximum outer diameter and a minimum outer diameter of the device.
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公开(公告)号：US11108034B2
公开(公告)日：2021-08-31
申请号：US15766451
申请日：2016-10-06
申请人： ArcActive Limited
摘要： Lead-acid batteries with low water consumption and hydrogen gassing, comprise electrodes of a carbon fibre material having a surface area of less than 50 m2/g. The carbon fibre material may also comprise non-carbon functional groups less than 22% by mass in the bulk fibre, and at least 78% carbon by mass in the bulk fibre. The carbon fibre material may be heated to a temperature of at least 1000° C. and cooled in an inert atmosphere to prevent non-carbon functional groups reforming on the carbonised carbon fibre material. The batteries are suitable for use in hybrid vehicles.
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10.发明授权公开(公告)号：US11037770B2
公开(公告)日：2021-06-15
申请号：US16460300
申请日：2019-07-02
发明人： Matthew Breuer
摘要： A channel electron multiplier having a high aspect ratio and differential coatings along its channel length is disclosed. The elongated tube has an input end, an output end, and an interior surface extending along the length of the tube between the input end and the output end. The channel electron multiplier also has first and second conductive layers formed on the interior surface of the tube. The first conductive layer is selected to provide a first electrical resistance, a first electron emission characteristic, or both, and the second conductive layer is selected to provide a second electrical resistance, a second electron emission characteristic, or both. A method of making a channel electron multiplier having two or more different conductive layers is also disclosed.
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