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公开(公告)号：US11814917B2
公开(公告)日：2023-11-14
申请号：US17144593
申请日：2021-01-08
发明人： Justin Kellner
CPC分类号： E21B28/00 , E21B34/02 , E21B2200/06
摘要： An apparatus and method for generating vibration in a downhole tubular, in which the apparatus includes a pulse valve that is configured to open and close intermittently, so as to intermittently vary pressure of a fluid that flows into the downhole tubular and thereby generate vibration in the downhole tubular, and a driver coupled to the pulse valve and configured to open and close the pulse valve. The driver is powered by a source of energy that is not in fluid communication with the downhole tubular.
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公开(公告)号：US20230323748A1
公开(公告)日：2023-10-12
申请号：US18313659
申请日：2023-05-08
发明人： Michael Doster , Mason Panahi
CPC分类号： E21B31/005 , E21B7/24 , E21B28/00 , E21B34/10
摘要： Provided is a downhole vibrating tool comprising an interconnected power section, axial shock assembly and lateral vibration assembly wherein the power section comprising a rotor and a stator, the rotor comprising a plurality of lobes and the stator comprising a second plurality of recesses adapted to receive the plurality of lobes, the number of recesses greater than the number of lobes; the axial shock assembly comprising a valve assembly, the axial shock assembly adapted to vary fluid flow therethrough; and the lateral vibration assembly comprising an eccentric mass; wherein the power section, the axial shock assembly and the lateral vibration assembly are aligned linearly.
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公开(公告)号：US11668186B2
公开(公告)日：2023-06-06
申请号：US17163404
申请日：2021-01-30
发明人： William Schulte , Gary Cook
摘要： Embodiments of the modular fracking ball assembly can include, but are not limited to, a measurement assembly, a shock absorbing layer, and an outer shell. The shock absorbing layer can encase the measurement assembly and the outer shell can encase the shock absorbing layer and the measurement assembly. The outer shell of the modular fracking ball assembly can be replaced with another outer shell when a change in parameters of the modular fracking ball assembly is needed. For instance, an overall diameter or a specific gravity of the modular fracking ball assembly can be changed by swapping outer shells.
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公开(公告)号：US20230151706A1
公开(公告)日：2023-05-18
申请号：US17987967
申请日：2022-11-16
发明人： Sheldon Ritchie , Mark Adam , Chad Feddema
CPC分类号： E21B28/00 , E21B23/0415 , E21B23/0421
摘要： A downhole vibration tool includes a body, a mandrel, a spring, and a balance piston. The body may be generally tubular and may have one or more helical slots formed on an inner surface thereof. The mandrel may be generally tubular, may have a bore, and may be positioned at least partially within the body. The mandrel may have one or more helical splines formed on an outer surface of the mandrel, the helical splines engaging the helical slots of the body such that the mandrel is translatable axially relative to the body. The spring may be positioned in an annular space formed between the mandrel and the body defined as a spring chamber. The balance piston may be in an annular space formed between the mandrel and the body, wherein the balance piston separates an oil-filled chamber from an internal pressure chamber.
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公开(公告)号：US11632852B2
公开(公告)日：2023-04-18
申请号：US17840917
申请日：2022-06-15
发明人： Wei Sun
摘要： Downhole neutron generators, downhole logging tools that utilize neutron generators, and methods to auto tune downhole neutron generators are disclosed. While a neutron generator is deployed in a borehole of a wellbore, the method includes determining whether an oscillation cycle of an ion beam current generated by the neutron generator is stable. After a determination that the oscillation cycle of the ion beam current is stable, the method includes determining proportional, integral, and derivative parameters of a proportional-integral-derivative controller that is operable to adjust an amount of power supplied to generate ions. The method further includes adjusting a replenish voltage of a replenish power supply of the neutron generator based on the proportional, integral, and derivative parameters.
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公开(公告)号：US11578593B2
公开(公告)日：2023-02-14
申请号：US17239545
申请日：2021-04-24
发明人： Todd W. Benson
IPC分类号： E21B28/00 , E21B34/00 , E21B34/06 , E21B4/10 , E21B47/00 , E21B47/09 , E21B47/12 , E21B47/16 , E21B49/00 , E21B7/24
摘要： Systems and methods for producing controlled vibrations within a borehole. In one example, the system includes a movement mechanism and a controller. The movement mechanism is configured to enable translational movement of a first surface relative to a second surface to allow the first surface to impact the second surface to produce a plurality of beats. The frequency and amplitude of the beats may be selectively controlled by suppressing or dampening the beats. The controller is configured to selectively control an amplitude or frequency of the beats to encode information therein, where the amplitude of a beat may be selectively controlled by dampening or suppressing the impact of the first surface and the second surface.
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公开(公告)号：US11459856B2
公开(公告)日：2022-10-04
申请号：US17010446
申请日：2020-09-02
发明人： James G. Gettis
IPC分类号： E21B37/00 , E21B28/00 , E21B43/00 , E21B34/06 , E21B37/08 , E21B1/00 , E21B31/113 , E21B43/26 , E21B1/38 , E21B31/107
摘要： A device for generating pressure waves in a well or a wellbore. The device includes a housing containing an impact-generating mechanism for generating the pressure waves and a connector for connecting the housing to a conveyor for transporting the device to any desired location within the well or the wellbore. The device may be used for a number of downhole applications such as cleaning perforations, fracturing processes, vibration of a casing to prevent fluid flow in a cemented annulus, hydraulic jar operations for freeing stuck downhole objects, generating data to optimize pumping parameters and as an enhancement to percussion drilling techniques.
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公开(公告)号：US20220312577A1
公开(公告)日：2022-09-29
申请号：US17840917
申请日：2022-06-15
发明人： Wei SUN
摘要： Downhole neutron generators, downhole logging tools that utilize neutron generators, and methods to auto tune downhole neutron generators are disclosed. While a neutron generator is deployed in a borehole of a wellbore, the method includes determining whether an oscillation cycle of an ion beam current generated by the neutron generator is stable. After a determination that the oscillation cycle of the ion beam current is stable, the method includes determining proportional, integral, and derivative parameters of a proportional-integral-derivative controller that is operable to adjust an amount of power supplied to generate ions. The method further includes adjusting a replenish voltage of a replenish power supply of the neutron generator based on the proportional, integral, and derivative parameters.
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公开(公告)号：US20220018237A1
公开(公告)日：2022-01-20
申请号：US17489232
申请日：2021-09-29
摘要： Methods to improve fluid flow of a multi-phase mixture, methods to separate fluids of a multi-phase mixture, and downhole multi-phase fluid mixture systems are disclosed. A method to improve fluid flow of a multi-phase mixture includes positioning a first acoustic device and a second acoustic device around a conveyance that provides a fluid flow path for a first fluid in a first phase and a second fluid in a second phase to simultaneously flow through the conveyance. The method also includes determining a flow rate and a fluid condition of the fluid mixture. The method further includes generating a standing acoustic wave through the conveyance based on the flow rate and the fluid condition to break down the first fluid into droplets having volume within a threshold volume.
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公开(公告)号：US11208846B2
公开(公告)日：2021-12-28
申请号：US16439182
申请日：2019-06-12
摘要： Apparatus and method for drilling a wellbore using non-synchronous oscillators. An apparatus for drilling a wellbore includes a tubing string and a bottom hole assembly coupled to the tubing string. The bottom hole assembly includes a first oscillator and a second oscillator. The first oscillator is configured to restrict fluid flow and induce pressure pulses in the tubing string at a first frequency. The second oscillator is configured to restrict fluid flow and induce pressure pulses in the tubing string at a second frequency. The first frequency is different from the second frequency.
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