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公开(公告)号：US20220075090A1
公开(公告)日：2022-03-10
申请号：US17015872
申请日：2020-09-09
Applicant: Carl M. Edwards , Marc Stephen Ramirez , Otto Fanini , Stanislav Forgang
Inventor： Carl M. Edwards , Marc Stephen Ramirez , Otto Fanini , Stanislav Forgang
IPC: G01V3/32 , G01R33/38 , G01R33/383 , G01R33/36 , G01R33/34
Abstract: An apparatus for performing a nuclear magnetic resonance (NMR) measurement in a borehole penetrating a subsurface formation includes an NMR tool having an outside diameter that is less than an inside diameter of a drill tubular disposed in the borehole, the drill tubular having an opening at the distal end of the drill tubular leading into the borehole, and a retaining device configured to allow at least a section of the NMR tool to protrude through the opening of the drill tubular and prevent an unrestrained release of the NMR tool through the opening. The apparatus also includes a transmitter antenna and a receiver antenna coupled to the NMR tool, wherein the transmitter antenna and/or the receiver antenna are extendable from the NMR tool.
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公开(公告)号：US10082594B2
公开(公告)日：2018-09-25
申请号：US14680254
申请日：2015-04-07
Applicant: Marc Stephen Ramirez , Stanislav Wilhelm Forgang , Babak Kouchmeshky
Inventor： Marc Stephen Ramirez , Stanislav Wilhelm Forgang , Babak Kouchmeshky
IPC: G01V3/32 , G01R33/34 , G01R33/38 , G01R33/383
CPC classification number: G01V3/32 , G01R33/3808 , G01R33/383 , G01R33/448
Abstract: Nuclear magnetic resonance apparatuses and methods for estimating properties of an earth formation are provided. An apparatus includes a carrier configured to be deployed in a borehole, at least one transmitting assembly configured to generate an oscillating magnetic field in a volume of interest within the earth formation, at least one receiving assembly configured to detect a nuclear magnetic resonance (NMR) signal originating in the volume of interest; and a magnet assembly configured to generate a static magnetic field in the formation from a primary side of the magnet assembly. The magnet assembly includes an array of longitudinally elongated magnets having a rotating pattern of magnetic orientations, the array configured to generate the static magnetic field in the volume of interest, and the static magnetic field strength is higher at the primary side than the field strength at a side of the magnet assembly that is opposite the primary side.
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公开(公告)号：US20160299249A1
公开(公告)日：2016-10-13
申请号：US14680254
申请日：2015-04-07
Applicant: Marc Stephen Ramirez , Stanislav Wilhelm Forgang
Inventor： Marc Stephen Ramirez , Stanislav Wilhelm Forgang
CPC classification number: G01V3/32 , G01R33/3808 , G01R33/383
Abstract: Nuclear magnetic resonance apparatuses and methods for estimating properties of an earth formation are provided. An apparatus includes a carrier configured to be deployed in a borehole, at least one transmitting assembly configured to generate an oscillating magnetic field in a volume of interest within the earth formation, at least one receiving assembly configured to detect a nuclear magnetic resonance (NMR) signal originating in the volume of interest; and a magnet assembly configured to generate a static magnetic field in the formation from a primary side of the magnet assembly. The magnet assembly includes an array of longitudinally elongated magnets having a rotating pattern of magnetic orientations, the array configured to generate the static magnetic field in the volume of interest, and the static magnetic field strength is higher at the primary side than the field strength at a side of the magnet assembly that is opposite the primary side.
Abstract translation: 提供核磁共振装置和估算地层特性的方法。 一种装置包括构造成部署在钻孔中的载体，至少一个传输组件，其构造成在地层内产生感兴趣体积的振荡磁场;至少一个接收组件，被配置为检测核磁共振（NMR） 信号源于感兴趣的体积; 以及磁体组件，其构造成从所述磁体组件的初级侧在所述地层中产生静磁场。 磁体组件包括具有旋转图形的磁性取向的纵向细长磁体的阵列，该阵列被配置为在感兴趣的体积中产生静态磁场，并且静态磁场强度在初级侧高于场强 磁体组件的与初级侧相对的一侧。
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公开(公告)号：US10585205B2
公开(公告)日：2020-03-10
申请号：US15874428
申请日：2018-01-18
Applicant: Marc Stephen Ramirez , Stanislav W. Forgang
Inventor： Marc Stephen Ramirez , Stanislav W. Forgang
Abstract: An apparatus for performing a nuclear magnetic resonance (NMR) experiment in a borehole penetrating the earth includes: a carrier configured to be conveyed through the borehole; an antenna assembly disposed on the carrier and configured to receive an NMR signal; and an active gain circuit having an input coupled to the antenna and configured to apply gain to the received NMR signal and to provide an output signal comprising NMR experiment data. The apparatus also includes a feedback circuit configured to feed the output signal back to the input of the active gain circuit; wherein the signal fed back to the input of the active gain circuit is out of phase with the received NMR signal and the feedback circuit provides an electrical quality factor Q value of an antenna assembly that is less than the electrical quality factor Q value of the antenna assembly without the feedback circuit.
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公开(公告)号：US11619760B2
公开(公告)日：2023-04-04
申请号：US17356992
申请日：2021-06-24
Applicant: Youssef Boulaknadal , Stanislav Forgang , Ryan Rocheleau , Marc Stephen Ramirez
Inventor： Youssef Boulaknadal , Stanislav Forgang , Ryan Rocheleau , Marc Stephen Ramirez
Abstract: A device for generating oscillating signals includes an energy transfer device configured to apply an oscillating signal to a sensitive volume, and a resonant tuning circuit including the energy transfer device. The tuning circuit includes a tuning capacitor configured to cause the tuning circuit to resonate at a selected frequency, and an energy storage device. The transmitting device also includes a controller configured to apply a pulse sequence to the tuning circuit having a series of pulses, the energy storage device configured to retain electrical energy at an end of a first pulse, and discharge the electrical energy to the tuning circuit at an onset of a next pulse of the pulse sequence.
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Patent Agency Ranking
公开(公告)号：US11460600B2
公开(公告)日：2022-10-04
申请号：US17015872
申请日：2020-09-09
Applicant: Carl M. Edwards , Marc Stephen Ramirez , Otto Fanini , Stanislav Forgang
Inventor： Carl M. Edwards , Marc Stephen Ramirez , Otto Fanini , Stanislav Forgang
IPC: G01V3/32 , G01R33/38 , G01R33/34 , G01R33/36 , G01R33/383
Abstract: An apparatus for performing a nuclear magnetic resonance (NMR) measurement in a borehole penetrating a subsurface formation includes an NMR tool having an outside diameter that is less than an inside diameter of a drill tubular disposed in the borehole, the drill tubular having an opening at the distal end of the drill tubular leading into the borehole, and a retaining device configured to allow at least a section of the NMR tool to protrude through the opening of the drill tubular and prevent an unrestrained release of the NMR tool through the opening. The apparatus also includes a transmitter antenna and a receiver antenna coupled to the NMR tool, wherein the transmitter antenna and/or the receiver antenna are extendable from the NMR tool.
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7.发明授权公开(公告)号：US11171684B1
公开(公告)日：2021-11-09
申请号：US16894161
申请日：2020-06-05
Applicant: Quming Zhou , Stanislav Forgang , Marc Stephen Ramirez
Inventor： Quming Zhou , Stanislav Forgang , Marc Stephen Ramirez
Abstract: An NMR measurement apparatus includes a transmitting antenna including a transmitter coil, a capacitor, a dissipating component and a restricting component, and a receiving antenna physically separated from the transmitting antenna. A processor is configured to apply a drive signal at a first voltage level to generate a transmission signal having a selected transmission frequency, where the receiving antenna is deactivated during generation, connect the dissipating component to the transmitter coil to dissipate stored energy in the transmitter coil, connect the restricting component to the transmitter coil to restrict the transmitting antenna to a second voltage level smaller than the first voltage level and based on a voltage of NMR signals from the sensitive volume, activate the receiving antenna and detect a NMR signal, where the restricting component is connected to the transmitter coil and restricts the transmitting antenna during the activating and the detecting.
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公开(公告)号：US20200018148A1
公开(公告)日：2020-01-16
申请号：US16036342
申请日：2018-07-16
Applicant: Marc Stephen Ramirez , Quming Zhou
Inventor： Marc Stephen Ramirez , Quming Zhou
IPC: E21B47/00 , G01V3/32 , G01V3/38 , G01N15/08 , E21B7/04 , E21B43/26 , E21B29/00 , E21B33/12 , E21B47/12
Abstract: A method for transforming an earth formation and/or a completion component for the earth formation based on estimating a parameter of the earth formation includes: performing a nuclear magnetic resonance (NMR) experiment on the earth formation, the NMR experiment includes transmitting an initial radio-frequency (RF) pulse and a series of refocusing RF pulses; detecting a truncated free induction decay (FID) signal following the initial RF pulse and a spin echo following at least one refocusing RF pulse, the truncated FID signal missing an initial part of a total FID signal; reconstructing the total FID signal using the truncated FID signal, the detected spin echo, and a calculated or measured time between end of transmitting the initial RF pulse and beginning of receiving the truncated FID signal; estimating the parameter using the total FID signal; and transforming the earth formation and/or the completion component based on the estimated property using transformation-equipment.
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公开(公告)号：US20190219726A1
公开(公告)日：2019-07-18
申请号：US15874428
申请日：2018-01-18
Applicant: Marc Stephen Ramirez , Stanislav W. Forgang
Inventor： Marc Stephen Ramirez , Stanislav W. Forgang
Abstract: An apparatus for performing a nuclear magnetic resonance (NMR) experiment in a borehole penetrating the earth includes: a carrier configured to be conveyed through the borehole; an antenna assembly disposed on the carrier and configured to receive an NMR signal; and an active gain circuit having an input coupled to the antenna and configured to apply gain to the received NMR signal and to provide an output signal comprising NMR experiment data. The apparatus also includes a feedback circuit configured to feed the output signal back to the input of the active gain circuit; wherein the signal fed back to the input of the active gain circuit is out of phase with the received NMR signal and the feedback circuit provides an electrical quality factor Q value of an antenna assembly that is less than the electrical quality factor Q value of the antenna assembly without the feedback circuit.
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10.发明申请公开(公告)号：US20180231682A1
公开(公告)日：2018-08-16
申请号：US15431938
申请日：2017-02-14
Applicant: Marc Stephen Ramirez
Inventor： Marc Stephen Ramirez
Abstract: A nuclear magnetic resonance apparatus includes a magnet assembly, a transmitting antenna configured to generate an oscillating magnetic field in a sensitive volume within an earth formation, and one or more receiving antennas configured to detect a nuclear magnetic resonance signal originating in the sensitive volume. The one or more receiving antennas are arranged relative so that the one or more receiving antennas are inductively decoupled from the transmitting antenna, a first portion of the surface area of the one or more receiving antennas overlapping a first region of the transmitting antenna in which a magnetic flux of the transmitting antenna is in a first direction, and a second portion of the surface area of the one or more receiver antennas overlapping a second region of the transmitting antenna in which the magnetic flux is in a second direction predominantly opposed to the first direction.
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