A method for measuring a wall thickness of two concentric pipes includes launching a pipe inspection gauge (pig) within an inner pipe of the two concentric pipes; emitting, using an electromagnetic (EM) transmitter of the pig, magnetic fluxes toward one or more EM receivers of the pig; focusing, using one or more focusing devices, the emitted magnetic fluxes to compress and guide the emitted magnetic fluxes through the inner pipe toward the outer pipe and increase a signal to noise ratio of the one or more EM receivers; measuring, using the one or more EM receivers, the compressed and guided magnetic fluxes to generate a measured flux for providing to a pipe anomaly analyzer; and determining, using the pipe anomaly analyzer and based on the measured flux, the wall thickness of an outer pipe of the two concentric pipes.
G01B 7/06 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width, or thickness for measuring thickness
G01B 7/00 - Measuring arrangements characterised by the use of electric or magnetic techniques
2.
ELECTROMAGNETIC WAVE FOCUSING FOR CONCENTRIC PIPE EVALUATION
A method for measuring a wall thickness of two concentric pipes (172a, 172b) includes launching a pipe inspection gauge (pig) (160a, 161) within an inner pipe (172b) of the two concentric pipes (172a, 172b); emitting, using an electromagnetic (EM) transmitter (161e, 16 If, 161g) of the pig (161), magnetic fluxes toward one or more EM receivers (161c) of the pig (161); focusing, using one or more focusing devices (16 Id), the emitted magnetic fluxes to compress and guide the emitted magnetic fluxes through the inner pipe (172b) toward the outer pipe (172a) and increase a signal to noise ratio of the one or more EM receivers (161c); measuring, using the one or more EM receivers (161c), the compressed and guided magnetic fluxes to generate a measured flux for providing to a pipe anomaly analyzer (160); and determining, using the pipe anomaly analyzer (160) and based on the measured flux, the wall thickness of an outer pipe (172a) of the two concentric pipes (172a, 172b).
G01B 7/06 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width, or thickness for measuring thickness
E21B 47/085 - Measuring diameters or related dimensions at the borehole using radiant means, e.g. acoustic, radioactive or electromagnetic
G01N 27/82 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
G01V 3/26 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device
G01V 3/30 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for well-logging operating with electromagnetic waves
A magnetic flux measurement apparatus and method for nondestructive thickness imaging of metallic objects. The apparatus can primarily be used for thickness imaging of concentric metallic pipes, such as inner tubing and outer casing pipes in downhole applications. The magnetic flux measurement apparatus includes a transducer that includes a magnetic field source, magnetic flux sensor rings and a magnetic flux guide lens both positioned in alignment with a lateral axis of the magnetic field source. The magnetic flux guide lens is made of ferromagnetic material with high magnetic permeability that can direct flux lines into a predetermined sensor area for higher sensitivity and signal to noise ratio.
G01R 33/00 - Arrangements or instruments for measuring magnetic variables
G01B 7/06 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width, or thickness for measuring thickness
G01R 33/038 - Measuring direction or magnitude of magnetic fields or magnetic flux using permanent magnets, e.g. balances, torsion devices
G01V 3/10 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
G01V 3/22 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for well-logging operating with propagation of electric current using DC
G01V 3/24 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for well-logging operating with propagation of electric current using AC
G01V 3/28 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device using induction coils
G01V 3/30 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for well-logging operating with electromagnetic waves
4.
APPARATUS AND METHOD FOR EVALUATING LIGHTWEIGHT CEMENT BONDS IN DOWNHOLE APPLICATIONS
A method and apparatus for evaluating light-weight cement (LWC) bond conditions in production well in presence or absence of the tubing. The apparatus includes a tool string that can be lowered into the casing or the tubing. The tool string includes a segmented transducer ring matrix to excite the surrounding medium resulting in vibrations. The tool string further includes an impedance measurement circuit that can determine natural resonance frequencies of the structural components. The impedance measurement circuit can determine certain non-harmonic resonance mode shapes for mechanical impedance measurements that are sensitive to the LWC bond conditions. A machine learning model can be used for segmented impedance measurements to correct effects from the tubing eccentricity inside the casing. Lab calibration generates bond index mapping table and the field logging impedance measurement data can be processed into the bond indexes to further evaluate LWC bond conditions.
A device and method for nondestructively inspecting, measuring, and/or detecting metallic. The device may enable multiple synthetic apertures for measurements simultaneously. The device includes a transmitter coil array and a receiver coil array wound around a core. The receiver coil array includes multiple receiver coil sections built with gaps in between adjacent sections to form multiple associated apertures. An analog electrical network is coupled to the multiple receiver coil sections to enable multiple combined synthetic apertures to be operated together for the transducer to conduct measurements simultaneously to provide multiple outputs associated to the multiple synthetic apertures. Measurement signals can be combined to build a processed signal that can represent more accurate information from the target.
G01N 27/72 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
G01V 3/10 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
G01N 27/04 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
G01B 7/06 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width, or thickness for measuring thickness
An inductive transducer apparatus for testing metallic objects using Pulsed Eddy Current topology. The Apparatus includes a transmitter coil, a receiver coil, and a hybrid core. The hybrid core has a high saturation point which allows the transducer to generate a strong initial magnetic field that may further induce strong eddy currents on the surface of the target capable of penetrating deep into metallic objects under inspection. The hybrid core also has a high permeability which enhances the transducer's sensitivity and allows to maintain high signal-to-noise-ratio and of the received signal associated with Eddy Current magnetic field decaying, thus enhancing the system's performance in environments where reliable quantitative analysis of flaws located deep underneath the surface of metal objects is required. A linearity compensation method may be applied to further enhance the performance of the system.
H01F 27/30 - Fastening or clamping coils, windings, or parts thereof togetherFastening or mounting coils or windings on core, casing, or other support
G01N 27/90 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
A method and system for inspecting cement downhole. The method may comprise inserting an inspection device inside a tubing. The inspection device may comprise a centralizing module as well as a transducer, an azimuthal receiver, and a telemetry module. The method may further comprise activating the transducer, wherein the transducer generates a low-frequency cylindrical acoustic wave with normal incidence, detecting the locations and strengths of resonances generated, and creating a graph with an information handling system for analysis.
G01N 29/12 - Analysing solids by measuring frequency or resonance of acoustic waves
G01N 29/22 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic wavesVisualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object Details
E21B 33/14 - Methods or devices for cementing, for plugging holes, crevices or the like for cementing casings into boreholes
E21B 47/12 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
8.
Apparatus and method for hybrid sonic transmitter integrated with centralizer for cement bond log cased-hole application
A method and system for inspecting cement downhole. The method may comprise inserting an inspection device inside a tube. The inspection device may comprise a centralizing module as well as a tapper attached to the centralizing module. The inspection device may further comprise a receiver, a micro controller unit, and a telemetry module. The method may further comprise actuating the tapper, wherein the tapper produces a nonlinear wave, recording reflections of acoustic waves off a tubing or a casing, and creating a graph with an information handling system for analysis. An inspection device may comprise a centralizing module and a tapper attached to the centralizing module. The inspection device may further comprise a receiver, an information handling system, and a memory module.
E21B 47/14 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
Methods for locating an acoustic source. A method may comprise measuring noise from the acoustic source from a downhole environment, which produces a measurement for processing, performing a dispersion analysis on the measurement, performing a space entropy equalization and normalization process on the measurement, performing a weighted integration on the measurement, performing a pattern recognition on the measurement, performing a weighted enhancement on the measurement, and producing a recognition factor from the measurement. A method may comprise measuring noise from the acoustic source from a downhole environment, which produces a measurement for processing, performing a dispersion analysis on the measurement, performing a time difference scan on the measurement, performing a propagation distance scan on the measurement, performing a weighted enhancement on the measurement, and producing a recognition factor from the measurement.
Methods and a system for detecting through casing formation resistivity. A method may comprise inserting an inspection device inside a tube, activating the transmitter coil, recording signals with the receiver coil array, creating a transmitter matrix from an electromagnetic field produced from the transmitter coil, creating a receiver matrix from the recorded signals, and determining a through casing formation resistivity of a target from the transmitter matrix and the receiver matrix. A method may further comprise determining a casing thickness of a target from the transmitter matrix and the receiver matrix. An inspection device may comprise a sensor array comprising a transmitter coil array and a receiver coil array. The inspection device may further comprise a sensor array housing, wherein the sensor array is disposed within the sensor array housing, a memory module, and a differential amplifier.
G01V 3/10 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
G01V 3/18 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for well-logging
G01V 3/28 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device using induction coils
G01B 7/06 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width, or thickness for measuring thickness
E21B 47/12 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
11.
METHOD AND APPARATUS FOR SYNTHETIC MAGNETIC SENSOR APERTURE USING EDDY CURRENT TIME TRANSIENT MEASUREMENT FOR DOWNHOLE APPLICATIONS
A method of creating a synthetic aperture. The method may comprise identifying a static configuration, inputting the static configuration into a dynamic controller, configuring a transmitter with the dynamic controller, and configuring a receiver with the dynamic controller. The method may further comprise inputting operational variables and environmental variables into a dynamic configuration, inputting the dynamic configuration into the dynamic controller, and re-configuring the transmitter and the receiver with the dynamic controller.
A device and method for wellbore inspection comprising a downhole tool. The downhole tool may comprise a wireline, a sensor cartridge, and a plurality of centralizers. The method for detecting defects within a wellbore may comprise inserting a downhole tool into a wellbore, wherein the downhole tool comprises a wireline, a sensor cartridge, and a plurality of centralizers. The method also includes producing an acoustic signal with the plurality of centralizers and recording the acoustic signal with a sensor, wherein the sensor records the acoustic signal within an aperture.
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Oil and gas well downhole survey and measurement equipment Oil and gas well drilling services, namely, providing measurements and downhole telemetry while drilling; Oil prospecting, namely, well logging and testing; Well logging
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Oil and gas well downhole survey and measurement equipment Oil and gas well drilling services, namely, providing measurements and downhole telemetry while drilling; Oil prospecting, namely, well logging and testing; Well logging
