MULTI-WELL-BASED INTERWELL LOGGING COMMUNICATION SYSTEM

SMOOTH HYDROPHONE SPECTRUM DIPS AND EXTEND MEASUREMENT FREQUENCY RANGE

DEEP STRUCTURAL DIP DETERMINATION AND IMPROVED REFLECTION IMAGING USING FULL-WAVEFORM BOREHOLE SONIC DATA

SUBSEA OPTICAL AMPLIFICATION AND CIRCULATOR FOR OPTICAL SENSING

HIGH-RESOLUTION REFLECTION IMAGING WITH LARGE-SCALE RESERVOIR AND STRUCTURE DETERMINATION USING FULL-WAVEFORM SONIC DATA

SYSTEM AND METHOD FOR MINIMIZING ENVIRONMENTAL NOISES ON ACOUSTIC SIGNALS

Method to Generate Seismic S Waves and Love Waves Using Inclined Explosive Charges

SYSTEM AND METHOD FOR BROADBAND ACOUSTIC SOURCE

METHOD AND SYSTEM FOR DOWNHOLE OBJECT LOCATION AND ORIENTATION DETERMINATION

Near field ultrasonic logging

Acoustic Noise Source Localization Based On Cross-Correlation Functions Across A Hydrophone Array

Multi-pole resonance based through tubing cement evaluation

Guided mode beamforming for probing open-hole and cased-hole well environments

MODULAR CONTROL UNIT AND SYSTEMS COMPRISING THE SAME

Method for Combining the Results of Ultrasound and X-Ray and Neutron Cement Evaluation Logs Through Modality Merging

SENSING CABLE IN A WELLBORE

Inversion-based array processing for cement-bond evaluation with an LWD tool

DETERMINING SHEAR SLOWNESS FROM DIPOLE SOURCE-BASED MEASUREMENTS ACQUIRED BY A LOGGING WHILE DRILLING ACOUSTIC MEASUREMENT TOOL

METHOD FOR COMBINING THE RESULTS OF ULTRASOUND AND X-RAY AND NEUTRON CEMENT EVALUATION LOGS THROUGH MODALITY MERGING

Methods for transmitting data acquired downhole by a downhole tool

Drift correction in a fiber optic distributed acoustic sensing system

Locating passive seismic events in a wellbore using distributed acoustic sensing

Deep Structural Dip Determination And Improved Reflection Imaging Using Full-Waveform Borehole Sonic Data

Ultrasonic beam focus adjustment for single-transducer ultrasonic assembly tools

Virtual core generation and modeling

Hybrid sensing apparatus and method

Downhole tools and methods for detecting a downhole obstruction within a wellbore

Soil probing device having built-in generators and detectors for compressional waves and shear waves

Guided mode beamforming for probing open-hole and cased-hole well environments

Acoustic noise reduction and energy generation barrier

THROUGH TUBING CEMENT EVALUATION USING SEISMIC METHODS

Ultrasonic transducer with suppressed lateral mode

Method and system for downhole object location and orientation determination

Monopole acoustic logging while drilling instrument used together with bottom hole assembly, method for measuring shear wave velocity of slow formations

Systems and methods for evaluation of formation shear slowness

Estimating properties of a subterranean formation

Downhole acoustic leak detection and profiling

Methods and systems for operating and maintaining a downhole wireless network

Photoacoustic gas detection

Sinusoidal excitation method and apparatus for multi-pole acoustic logging while drilling

Method of pressure testing

Vertical Seismic Profiling

Method and system for performing operations with communications

Method and system for performing communications using aliasing

Method and system for performing hydrocarbon operations with mixed communication networks

Data fusion enhanced multi-modality wellbore integrity inspection system

Wellbore detector with azimuthal and spectral energy resolution

Multi-barrier wellbore integrity inspection system with eccentricity correction

Acoustic logging tool

Identifying and visually presenting formation slowness based on low-frequency dispersion asymptotes

System, method, and for improving oilfield operations

Automatic slowness-frequency range determination for advanced borehole sonic data processing

Photoacoustic gas detection

Downhole local solid particles counting probe, production logging tool comprising the same and sand entry investigation method for hydrocarbon wells

Multi-mode control of downhole tools

SQUEEZE TARGET SELECTION METHODS AND SYSTEMS

Dual-frequency tags to detect cement curing in wellbore applications

Systems and methods for determining tool center, borehole boundary, and/or mud parameter

Method for analyzing cement integrity in casing strings using machine learning

Apparatus and method using measurements taken while drilling cement to obtain absolute values of mechanical rock properties along a borehole

Plunger lift monitoring via a downhole wireless network field

Multi-mode acoustic tool and method

Real-time pattern recognition and automatic interpretation of acoustic reflection images

Ultrasonic beam focus adjustment for single-transducer ultrasonic assembly tools

Downhole acoustic mapping

Logging system and method for evaluation of downhole installation

Adjustable acoustic transducers for a downhole tool

Encapsulated phased array segment for downhole applications

Ultrasonic transducer with improved backing element

Acoustic logging tool utilizing fundamental resonance

Apparatus and method using measurements taken while drilling cement to obtain absolute values of mechanical rock properties along a borehole

Fracture detection and localization using acoustic reflections

Continuous beamforming while moving: method to reduce spatial aliasing in leak detection

Dynamic gain system with azimuthal averaging for downhole logging tools

Evaluation of rock boundaries and acoustic velocities using drill bit sound during vertical drilling

Method and system for downhole object location and orientation determination

Controlled-frequency downhole seismic source

Encoded driving pulses for a range finder

Bender bar transducer with at least three resonance modes

Remote tool position and tool status indication

Apparatus and techniques for acoustic logging tool modeling

Casing thickness measurement using acoustic wave correlation

Devices and methods for downhole acoustic imaging

METHOD OF ACOUSTIC WELL LOGGING

Multi-beam phased array acoustic transducer operation for downhole applications

METHOD OF ACOUSTIC WELL LOGGING

High frequency inspection of downhole environment

Asymmetric bender bar transducer

Formation collapse sensor and related methods

Three-phase flow identification and rate detection

Tube wave generation

Evaluation of rock boundaries and acoustic velocities using drill bit sound during vertical drilling

Distributed seismic source array

Normalization of sector amplitudes using monopole amplitudes

Methods for measuring properties of multiphase oil-water-gas mixtures

Determining cement impedance from a formation boundary

Methods and systems for an integrated acoustic and induction logging tool

Method for determining a position of a water/cement boundary between pipes in a hydrocarbon well

Sourceless density determination apparatus, methods, and systems

Determining seismic sensor orientation in a wellbore

Monopole acoustic transmitter ring comprising piezoelectric material

Method and apparatus for the downhole in-situ determination of the speed of sound in a formation fluid

Apparatus for monopole and multipole sonic logging of a downhole formation

System and methodology for determining fracture attributes in a formation

Formation measurements using flexural modes of guided waves

Acoustic source with piezoelectric actuator array and stroke amplification for broad frequency range acoustic output

Estimating formation stresses using radial profiles of three shear moduli

Devices and methods for downhole acoustic imaging

Sonic logging for assessing well integrity

Downhole elastic anisotropy measurements

Acoustic isolater for a downhole tool

Wide bandwidth borehole dipole source for acoustic logging

Acoustic receiver assembly for downhole tools

Acoustic wave imaging of formations

Reducing distortion in amplified signals in well logging tools

SONIC/ACOUSTIC MONITORING USING OPTICAL DISTRIBUTED ACOUSTIC SENSING

Systems and methods for downhole cement evaluation

Method of borehole seismic surveying using an optical fiber

Seismic monitoring

Electroacoustic method of conductivity measurement through casing

Downhole quartz gauge with minimal electronics

Acoustic transducer apparatus, systems, and methods

Acoustic standoff and mud velocity using a stepped transmitter

Acoustic sensor apparatus, systems, and methods

Optical well logging

Determining fracture length via resonance

Acoustic isolators

System and method for acoustic imaging using a transducer array

Thermoelastic logging

Distributed clamps for a downhole seismic source

Methods for in-situ borehole seismic surveys using downhole sources

Location of downhole lines

Methods and systems for deploying seismic devices

Seismic methods and systems employing flank arrays in well tubing

Sonic borehole caliper and related methods

Method and apparatus for detecting fluid flow modulation telemetry signals transmitted from an instrument in a wellbore

Systems and methods to discriminate annular heavy fluids from cement

Methods and apparatus to determine slowness of drilling fluid in an annulus

REDUCING FLUID CAPACITANCE AND CONDUCTANCE EFFECTS ON PIEZOELECTRIC RESONATOR MEASUREMENTS

Apparatus and method for measuring the acoustic impedance of wellbore fluids

Methods for locating a cement sheath in a cased wellbore

Active seismic monitoring of fracturing operations

Methods and apparatus to optimize parameters in a downhole environment

Non-transitory computer-readable medium storing data storage program, non-transitory computer-readable medium storing data display program, data storage method, and data display method

Resonance method for measuring the electroacoustic constant and permeability of rock formations

Apparatus for logging while drilling acoustic measurement

Methods and Apparatus to Process Time Series Data for Propagating Signals in A Subterranean Formation

Filtering acoustic waveforms in downhole environments

System and method for generating micro-seismic events and characterizing properties of a medium with non-linear acoustic interactions

Data acquisition and processing system and method for investigating sub-surface features of a rock formation

System and method for investigating sub-surface features of a rock formation using compressional acoustic sources

System and method for investigating sub-surface features of a rock formation with acoustic sources generating conical broadcast signals

System and method for investigating sub-surface features and 3D imaging of non-linear property, compressional velocity VP, shear velocity VS and velocity ratio VP/VS of a rock formation

System and method for investigating sub-surface features of a rock formation with acoustic sources generating coded signals

Integrated system for investigating sub-surface features of a rock formation

EMAT acoustic signal measurement using modulated Gaussian wavelet and Hilbert demodulation

Pipelined pulse-echo scheme for an acoustic image tool for use downhole

Sonic/acoustic monitoring using optical distributed acoustic sensing

Resistivity Measurement Through Metal Casing Using Magnetic Field and Magnetoacoustic Phenomena

System and method for generating density in a cased-hole wellbore

Method and device for logging the fluid depth in a wellbore

ACOUSTIC DOWNHOLE TOOL WITH RUBBER BOOT PROTECTED BY EXPANDABLE SLEEVE

Method of using dipole compressional data to determine properties of a subterranean structure

Monopole acoustic transmitter ring comprising piezoelectric material

Resonance method for measuring water-oil ratio, conductivity, porosity, permeability and electrokinetic constant in porous formations

System and method to create three-dimensional images of non-linear acoustic properties in a region remote from a borehole

System and method to estimate compressional to shear velocity (VP/VS) ratio in a region remote from a borehole

Method and apparatus for acoustic impedance and P-wave anisotropy measurements

Single well reservoir characterization apparatus and methods

Methods and systems for deploying seismic devices

Image generation of a wellbore

Resistivity Measurement Through Metal Casing Using Magnetic Field and Magnetoacoustic Phenomena

Vertical seismic profiling migration method

Vertical seismic profiling velocity estimation method

EMAT Acoustic Signal Measurement Using Modulated Gaussian Wavelet and Hilbert Demodulation

Distributed acoustic wave detection

Using an acoustic ping and sonic velocity to control an artificial lift device

Sonic borehole caliper and related methods

Estimating formation stresses using radial profiles of three shear moduli

MONOPOLE ACOUSTIC TRANSMITTER RING COMPRISING PIEZOELECTRIC MATERIAL

Method and system for delineating a second wellbore from a first wellbore

Method to generate numerical pseudocores using borehole images, digital rock samples, and multi-point statistics

RADIAL PROFILING OF SLOWNESS: METHODS AND APPARATUS FOR NEAR-WELLBORE ALTERATION ESTIMATION

Ultrasonic logging methods and apparatus for automatically calibrating measures of acoustic impedance of cement and other materials behind casing

Acoustic Imaging Away From the Borehole Using a Low-Frequency Quadrupole Excitation

Borehole apparatus and methods for simultaneous multimode excitation and reception to determine elastic wave velocities, elastic modulii, degree of anisotropy and elastic symmetry configurations

Identification of stress in formations using angles of fast and slow dipole waves in borehole acoustic logging

Borehole apparatus and methods for simultaneous multimode excitation and reception to determine elastic wave velocities, elastic modulii, degree of anisotropy and elastic symmetry configurations

Resonance method of radial oscillations for measuring permeability of rock formations

Early kick detection in an oil and gas well

Apparatus and Method for Detecting Fluid Entering a Wellbore

Monitoring, controlling and enhancing processes while stimulating a fluid-filled borehole

Measurement of sound speed of downhole fluid utilizing tube waves

Measurement of sound speed of downhole fluid by helmholtz resonator

Method and apparatus for logging foam cement in cased boreholes

Method and apparatus for generating acoustic signals with a single mode of propagation

Method and apparatus of using crossed magnetic fields for measuring conductivity, permeability and porosity

Method for determining seismic anisotropy

Resistivity measurement through metal casing using magnetic field and magnetoacoustic phenomena

Imaging Near-Borehole Reflectors Using Shear Wave Reflections From a Multi-Component Acoustic Tool

Method of generating directional low frequency acoustic signals and reflected signal detection enhancements for seismic while drilling applications

Drilling system powered by energy-harvesting sensor

Method of generating directional low frequency acoustic signals and reflected signal detection enhancements for seismic while drilling applications

Combined electro-magnetic acoustic transducer

Method and apparatus for cement evaluation using multiple acoustic wave types

Borehole apparatus and methods for simultaneous multimode excitation and reception to determine elastic wave velocities, elastic modulii, degree of anisotropy and elastic symmetry configurations

Adaptive equalization of downhole acoustic receivers

Method and apparatus for azimuthal logging of shear waves in boreholes using optionally rotatable transmitter and receiver assemblies

Multiple receiver sub-array apparatus, systems, and methods

TOOL FOR MEASURING PERFORATION TUNNEL DEPTH

Method for processing acoustic reflections in array data to image near-borehole geological structure

Apparatus and method for detecting fluid entering a wellbore

Density log without a nuclear source

Methods and devices for analyzing and controlling the propagation of waves in a borehole generated by water hammer

ULTRASONIC CEMENT SCANNER

Radial profiling of slowness: methods and apparatus for near-wellbore alteration estimation

Controlled source imbalance apparatus, systems, and methods

Methods and systems for acoustic waveform processing

Ultrasonic cement scanner

Gain stabilization apparatus and methods for spectral gamma ray measurement systems

Method and apparatus for generating acoustic signal with single mode of propagation

Method for determining characteristics of earth formations

Tool for Measuring Perforation Tunnel Depth

System and method for monitoring and removing blockage in a downhole oil and gas recovery operation

Method and system for monitoring of fluid-filled domains in a medium based on interface waves propagating along their surfaces

Dynamic acoustic logging using a feedback loop

Integrated acoustic transducer assembly

Method and apparatus for LWD shear velocity measurement

Methods of generating directional low frequency acoustic signals and reflected signal detection enhancements for seismic while drilling applications

Apparatus and method for acoustic position logging ahead-of-the-bit

Quadrupole acoustic shear wave logging while drilling

Distributed control system with failover capabilities for physical well equipment

Hybrid sensing apparatus and method

Acoustic hyperlens for thru-casing ultrasonic sensor