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公开(公告)号：US20220091295A1
公开(公告)日：2022-03-24
申请号：US17025577
申请日：2020-09-18
Applicant: Halliburton Energy Services, Inc.
Inventor： Arcady Reiderman , Songhua Chen
Abstract: A nuclear magnetic resonance (NMR) sensor and methods and systems for use are provided. The method comprises disposing a nuclear magnetic resonance (NMR) sensor into a borehole, the NMR sensor comprising a magnet assembly to create a static magnetic field and a first transversal-dipole antenna having an azimuthally selective response function. The method further comprises, while rotating the NMR sensor, initiating azimuthally selective NMR excitation in at least one sensitivity region at a first frequency using the first transversal-dipole antenna and the magnet assembly, wherein the at least one sensitivity region is determined by the static magnetic field and the RF magnetic field. The method then comprises acquiring one or more azimuthally selective NMR signals at the first frequency using the first transversal-dipole antenna.
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公开(公告)号：US11280931B2
公开(公告)日：2022-03-22
申请号：US16079977
申请日：2017-05-09
Applicant: Halliburton Energy Services, Inc.
Inventor： Yusheng Cheng , Songhua Chen , Magdalena Sandor , Wei Shao
Abstract: A method for estimating a property of an earth formation is provided. At least one porosity dataset is received. The porosity dataset is analysed to determine pore-throat size distribution. A NMR measurements dataset is received from a NMR tool. The dataset is analyzed to determine a distribution of a first relaxation time versus a second relaxation time. Distribution of a ratio of the first relaxation time to the second relaxation time is determined by calculating a ratio between a geometric mean of the first relaxation and the second relaxation time. A threshold for the ratio of the first relaxation time to the second relaxation time is selected. The threshold indicates a value of the ratio corresponding to pore sizes not contributing to property of the formation. The property of the formation is determined using the determined threshold for the ratio of the first relaxation time to the second relaxation time.
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公开(公告)号：US20210404789A1
公开(公告)日：2021-12-30
申请号：US16753928
申请日：2019-06-11
Applicant: Halliburton Energy Services, Inc.
Inventor： Gabriela Singer , Lilong Li , Songhua Chen
Abstract: Measurements of a core sample at scales of measurement that differ by multiple orders of magnitude can be used to calculate a value that fairly represents surface roughness of the core sample. This surface roughness value can be used to determine petrophysical properties of the subsurface formation from which the core sample was obtained. The measurements can be nuclear magnetic resonance (NMR) diffusion-relaxation and gas-adsorption measurements. Surface relaxivities at the different scales are determined from the measurements and a ratio those surface relaxivities can be used to calculate the surface roughness value.
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公开(公告)号：US11175430B1
公开(公告)日：2021-11-16
申请号：US16878261
申请日：2020-05-19
Applicant: Halliburton Energy Services, Inc.
Inventor： Wei Shao , Songhua Chen
Abstract: Systems and methods of the present disclosure relate to processing nuclear magnetic resonance (NMR) data. An NMR downhole tool may include a housing, magnets disposed within the housing, an antenna extending along a circumference of the housing, and an information handling system configured to receive NMR signals via the antenna, wherein the NMR signals are based on an operating frequency, a static magnetic field B0, and a radio frequency (RF) field B1, which are defined by the antenna and the magnets. The information handling system may be further configured to project the NMR signals to a forward modeling space, and transmit vectors resulting from projecting the NMR signals to the forward modeling space.
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公开(公告)号：US11169295B2
公开(公告)日：2021-11-09
申请号：US16746452
申请日：2020-01-17
Applicant: Halliburton Energy Services, Inc.
Inventor： Daniel Lee Miller , MingJen Wang , Wei Shao , Songhua Chen , Ronnel Charles Balliet
Abstract: An NMR logging system is disclosed which continues logging without interruption despite switching activation sets to adapt to changes in formation properties. Based on detection of an approaching or encountered geological boundary, an appropriate activation set is transmitted to the downhole NMR tool while the NMR tool continues logging. This system optimizes NMR data collection for each formation and associated formation fluid properties while reducing the need to stop the tool string movement while switching the activation set, and reduces incomplete collection of NMR and non-NMR logging tool data.
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Patent Agency Ranking
公开(公告)号：US11150376B2
公开(公告)日：2021-10-19
申请号：US16318099
申请日：2016-09-20
Applicant: HALLIBURTON ENERGY SERVICES, INC.
Inventor： Songhua Chen , Arcady Reiderman , Lilong Li
IPC: G01V3/32 , G01R33/36 , G01R33/383 , G01R33/38
Abstract: Disclosed are NMR logging methods and antenna arrangements for fast moving NMR logging tools. The NMR logging tool includes a permanent magnet for inducing a static magnetic field in a formation within a borehole and a transmitter antenna for transmitting a RF pulse sequence into the formation. Two receiver antennae are configured to receive NMR response signals from the formation, the two receiver antennae including a first receiver antenna arranged axially below a second receiver antenna. The first receiver antenna and the second receiver antenna are disposed within a surface area of the transmitter antenna, and the transmitter axial length is substantially the same as an axial length of the two receiver antennae.
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公开(公告)号：US11062439B2
公开(公告)日：2021-07-13
申请号：US16580595
申请日：2019-09-24
Applicant: Halliburton Energy Services, Inc.
Inventor： Sonali Pattnaik , Songhua Chen , Wei Shao , Adly Helba
Abstract: Disclosed herein are methods and systems that determine a microfacies or a microfacies characteristic of a sample of a subterranean formation based on a segmented image of a petrographic image of the sample, wherein the segmented image is derived from the petrographic image using a machine-learning algorithm.
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公开(公告)号：US20210199840A1
公开(公告)日：2021-07-01
申请号：US17183361
申请日：2021-02-24
Applicant: Halliburton Energy Services, Inc.
Inventor： Wei Shao , Songhua Chen
Abstract: A method includes generating a temperature-corrected nuclear magnetic resonance (NMR) measurement-derived value corresponding to a target temperature using a correlation model that is based on a difference between the target temperature and a sample temperature. The method also includes determining a formation property based on the temperature-corrected NMR measurement-derived value corresponding to the target temperature.
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公开(公告)号：US10996365B2
公开(公告)日：2021-05-04
申请号：US16077652
申请日：2016-09-29
Applicant: Halliburton Energy Services, Inc.
Inventor： Lilong Li , Arcady Reidermann , David R. Beard , Songhua Chen
Abstract: A logging instrument for estimating a property of a formation is provided. The instrument includes a magnet to generate a magnetic field. The instrument also includes pulse sequencer circuitry that supplies radio frequency (RF) signals. The instrument additionally includes an antenna system configured to transmit the RF signals and to obtain nuclear magnetic resonance (NMR) measurements of the formation in response to the transmitted RF signals. In one aspect, the logging tool contains a temperature sensor configured to obtain temperature measurements of the magnet. The instrument additionally includes a control unit communicatively coupled to the temperature sensor, the antenna system and the pulse sequencer circuitry and configured to receive the temperature measurements and selectively adjust operating parameters of the pulse sequencer circuitry based on the received temperature measurements in order to maintain optimal intensity of the magnetic field.
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公开(公告)号：US10927674B2
公开(公告)日：2021-02-23
申请号：US16332503
申请日：2016-10-10
Applicant: HALLIBURTON ENERGY SERVICES, INC.
Inventor： Songhua Chen
Abstract: Methods and systems for the extraction of a formation fluid sample using a fluid extraction tool including an elongated body and a sealing pad extending therefrom, the sealing pad having an opening for establishing fluidic communication between an earth formation and the elongated body. The sealing pad communicable with from a container holding a selective permeability agent (SPA) capable of modifying the permeability of one or more fluids within the formation. The container coupled with a device for injecting the SPA into the earth formation and extracting a formation fluid sample therefrom.
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