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    Data inversion to reduce motion effects on nuclear magnetic resonance relaxation data
    81.
    发明授权
    Data inversion to reduce motion effects on nuclear magnetic resonance relaxation data 有权

    公开(公告)号：US12189080B2

    公开(公告)日：2025-01-07

    申请号：US17751828

    申请日：2022-05-24

    Applicant: Halliburton Energy Services, Inc.

    Inventor： Arcady Reiderman ,  Rebecca Jachmann ,  Jie Yang ,  Songhua Chen

    IPC: G01V3/32 ,  G01V3/34

    Abstract: A NMR tool for use in a wellbore in a subterranean region includes a magnet assembly to produce a magnetic field in a volume in the subterranean region; an antenna to produce an excitation in the volume, and to receive a plurality of spin echo waveforms from the volume; and a computing system coupled to the antenna and configured to: apply a first acquisition window having a first duration to the spin echo waveforms to generate a corresponding first echo train including a first plurality of NMR echo signal amplitudes; apply a second acquisition window having a second duration different than the first duration, to at least some of the spin echo waveforms to generate a corresponding second echo train including a second plurality of NMR echo signal amplitudes; and determine a relaxation parameter based on a single inversion of the first and second echo trains.

    Data driven approach to develop petrophysical interpretation models for complex reservoirs
    82.
    发明授权
    Data driven approach to develop petrophysical interpretation models for complex reservoirs 有权

    公开(公告)号：US12111441B2

    公开(公告)日：2024-10-08

    申请号：US17936803

    申请日：2022-09-29

    Applicant: Halliburton Energy Services, Inc.

    Inventor： Wei Shao ,  Songhua Chen ,  Huiwen Sheng

    IPC: G01V3/26 ,  E21B43/25 ,  G01V3/34

    CPC classification number: G01V3/26 ,  E21B43/25 ,  G01V3/34

    Abstract: System and methods of petrophysical modeling are disclosed. Measurements of formation parameters are received from one or more measurement tools during a first stage of a downhole operation within a reservoir formation. A correlation between each of the formation parameters and a target parameter of the formation is determined based on the measurements. One or more formation parameters are selected as input parameters for a symbolic regression model, based on the correlation. A symbolic regression model is trained to generate candidate formation models representing the target parameter, based on the selected input parameters. One or more optimizations are applied to the candidate models to determine a target petrophysical model of the formation. Values of the target parameter are estimated for at least one formation layer, based on the target petrophysical model. A second stage of the downhole operation is performed within the formation layer(s) based on the estimated values.

    NUCLEAR MAGNETIC RESONANCE (NMR) FLUID SUBSTITUTION USING MACHINE LEARNING
    86.
    发明申请
    NUCLEAR MAGNETIC RESONANCE (NMR) FLUID SUBSTITUTION USING MACHINE LEARNING 有权

    公开(公告)号：US20230133700A1

    公开(公告)日：2023-05-04

    申请号：US17514654

    申请日：2021-10-29

    Applicant: Halliburton Energy Services, Inc.

    Inventor： Songhua Chen ,  Wei Shao

    IPC: G01V3/32 ,  G01N24/08 ,  G01R33/50 ,  G01V3/38

    Abstract: System and methods for nuclear magnetic resonance (NMR) fluid substitution are provided. NMR logging measurements of a reservoir rock formation are acquired. Fluid zones within the reservoir rock formation are identified based on the acquired measurements. The fluid zones include water zones comprising water-saturated rock and at least one oil zone comprising rock saturated with multiphase fluids. Water zones having petrophysical characteristics matching those of the oil zone(s) within the formation are selected. NMR responses to multiphase fluids resulting from a displacement of water by hydrocarbon in the selected water zones are simulated. A synthetic dataset including NMR T2 distributions of multiphase fluids is generated based on the simulation. The synthetic dataset is used to train a machine learning (ML) model to substitute NMR T2 distributions of multiphase fluids with those of water. The trained ML model is applied to the NMR logging measurements acquired for the oil zone(s).

    INDUCTION LOOP CEMENTING PROGRESS DETECTION
    88.
    发明申请
    INDUCTION LOOP CEMENTING PROGRESS DETECTION 有权

    公开(公告)号：US20220325614A1

    公开(公告)日：2022-10-13

    申请号：US17224843

    申请日：2021-04-07

    Applicant: Halliburton Energy Services, Inc.

    Inventor： Songhua Chen ,  Jinhua Cao ,  Lonnie Carl Helms

    IPC: E21B47/005 ,  E21B33/13 ,  E21B33/043 ,  E21B17/14 ,  E21B47/12

    Abstract: A wellbore fluid inductance monitor is disclosed, which operates at an end of a tubular in a wellbore. The wellbore fluid inductance monitor comprises an inductor in an electrical circuit. A magnetically doped portion of wellbore fluid, which may be a hydraulic fluid or cement slurry, is introduced into the wellbore during a reverse cementing or other cementing operation. The magnetically doped portion of wellbore fluid contains a dopant that alters at least one of a magnetic permeability and conductivity. The wellbore fluid inductance monitor detects the proximity magnetically doped portion of wellbore fluid based on altered electrical characteristics of the inductor. Based on the detection, the wellbore fluid inductance monitor triggers a wellbore operation which is detectable at a cementing controller and the cementing operation can be stopped or otherwise completed based on the determination that the cement slurry has reached the end of the tubular.

    Interspersing different wait times in trainlet and partial recovery sequences
    89.
    发明授权
    Interspersing different wait times in trainlet and partial recovery sequences 有权

    公开(公告)号：US11415534B2

    公开(公告)日：2022-08-16

    申请号：US16765360

    申请日：2018-01-10

    Applicant: Halliburton Energy Services, Inc.

    Inventor： Lilong Li ,  Yuesheng Cheng ,  David R. Beard ,  Arcady Reiderman ,  Songhua Chen

    IPC: G01N24/08 ,  G01V3/32

    Abstract: A method and system for interspersing different wait times in trainlet and partial recovery sequences is provided. The method includes introducing a nuclear magnetic resonance (NMR) tool into a wellbore penetrating a subterranean formation. The method also includes applying an NMR pulse sequence to the subterranean formation using the NMR tool, in which the NMR pulse sequence includes at least two different wait times interspersed between successive sequences of radio frequency (RF) pulses. The method also includes measuring one or more echo signals corresponding to a substance in the subterranean formation based on the applied NMR pulse sequence. The method also includes determining a distribution of a characteristic of the substance based on the measured one or more echo signals.

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