173433 ⎘
Details of seismic processing or analysis; Aspects of acoustic signal generation or detection; Signal generation; Source location Subsurface, e.g. in borehole or below weathering layer or mud line
SYSTEMS AND METHODS FOR DETECTING OR MONITORING SUBSURFACE EVENTS USING CONTINUOUS WAVELET TRANSFORMS
#2Blue-Shift Of Resonance Frequency To Detect Fluid Channel Behind Cemented Casing
#3CEMENT BONDING EVALUATION WITH A SONIC-LOGGING-WHILE-DRILLING TOOL
#4TREMOR CHARACTERIZATION FOR GEOTHERMAL IMAGING
#5REAL-TIME CHARACTERIZATION OF FLUID FRONT IN SUBSURFACE FORMATION AND INFLOW MANAGEMENT
#6REFLECTION SEISMOLOGY INVERSION WITH QUALITY CONTROL
#7TIME DOMAIN STACKING OF ACOUSTIC DIPOLE LWD MEASUREMENTS
#8SEISMIC EXPLORATION METHOD, SUBSURFACE MONITORING METHOD, SEISMIC EXPLORATION SYSTEM, AND SEISMIC SOURCE DEVICE
#9SUBSEA OPTICAL AMPLIFICATION AND CIRCULATOR FOR OPTICAL SENSING
#10IMAGING A SUBTERRANEAN FORMATION THROUGH ACOUSTIC ENERGY DELIVERED THROUGH A LIQUID
#11Deployment Of Quasi-Planar Shock Wave Generators In Association With Seismic Exploration
#12SUBSURFACE FLUID DETECTION
#13Blue-Shift Of Resonance Frequency To Detect Fluid Channel Behind Cemented Casing
#14METHOD AND APPARATUS FOR INVERTING FORMATION WAVE IMPEDANCE USING DAS BOREHOLE SEISMIC DATA
#15FIBER OPTICS ACOUSTIC STEERING FOR DIRECTIONAL DRILLING
#16Land Seismic Exploration Methods, Electronic Equipment and Readable Storage Media
#17SLIM SONIC LOGGING TOOL WITH MULTIPLE MODULES FOR BOREHOLE RESONANCE MODE AND PITCH-CATCH MEASUREMENT
#18DISTRIBUTED SENSING USING FLUID NETWORK
#19CHARACTERIZATION SYSTEM AND METHOD FOR CASING LOADING USING ENTROPY ANALYSIS
#20AUTOMATED METHODS TO DETERMINE PROPERTIES OF LAMINATED RESERVOIR FORMATIONS
#21CEMENT BOND EVALUATION IN A WELLBORE
#22DRILLSTRING WITH ACOUSTIC CALIPER
#23MACHINE LEARNING GUIDED SUBSURFACE FORMATION MICROSEISMIC IMAGING
#24Circular Downhole Ultrasonic Phased Array
#25Method to estimate the depth of the weathering layer using gravity response
#26Training data for machine learning seismic inversion
#27Hydrocarbon evaluation systems
#28CEMENT BONDING EVALUATION WITH A SONIC-LOGGING-WHILE-DRILLING TOOL
#29Beamform processing for sonic imaging using monopole and dipole sources
#30Method to determine drilling-induced rock damage
#31Through tubing cement evaluation based on casing extensional waves
#32Multi-pole resonance based through tubing cement evaluation
#33System and method for diagnosing borehole structure variances using independent component analysis
#34Interpolation method and system to obtain azimuthal borehole sonic measurements
#35Method for reconstructing at least one trace in a seismic image
#36Detection system for detecting discontinuity interfaces and/or anomalies in pore pressures in geological formations
#37Through tubing acoustic measurements to determine material discontinuities
#38Through tubing acoustic measurements
#39Method and apparatus for geophysical formation evaluation measurements behind casing
#40Fracture wave depth, borehole bottom condition, and conductivity estimation method
#41SYSTEM AND METHOD FOR LOCALIZED SEISMIC IMAGING AROUND WELLBORES
#42Rock physics model for fluid identification and saturation estimation in subsurface reservoirs
#43Deployment Of Quasi-Planar Shock Wave Generators In Association With Seismic Exploration
#44Method and system for automatic picking of borehole acoustic events based on new objective function
#45Enhanced-resolution sonic data processing for formation body wave slowness with full offset waveform data
#46Shear head device
#47Method for improving 2D seismic acquisition
#48Ultrasonic pulse-echo and caliper formation characterization
#49Method and apparatus for fluid characterization and holdup estimation using acoustic waves
#50System and method for diagnosing borehole structure variances using independent component analysis
#51Systems and methods for high-resolution travel time and move-out velocity estimation using downhole linear receiver arrays
#52Instrumented bridge plugs for downhole measurements
#53Seismic pore-pressure prediction using prestack seismic inversion
#54Through casing formation slowness evaluation with a sonic logging tool
#55Hydrocarbon evaluation systems
#56Ultrasonic waveform processing using deconvolution in downhole environments
#57Flow rate optimization during simultaneous multi-well stimulation treatments
#58Estimation of formation and/or downhole component properties using electromagnetic acoustic sensing
#59Spatially locating a microseismic event utilizing an acoustic sensing cable
#60Circular downhole ultrasonic phased array
#61Enhanced-resolution rock formation body wave slowness determination from borehole guided waves
#62Method for estimating rock brittleness from well-log data
#63Depth-continuous estimation of the elastic tensor using single depth borehole sonic measurements
#64Real-time reconfiguration of phased array operation
#65Apparatus and method for performing formation stress testing in an openhole section of a borehole
#66APPARATUS FOR SIMULTANEOUS LOGGING FOR MULTIPOLE SONIC AND ACOUSTIC REFLECTION SURVEY
#67Measurement of in situ rock formation properties using surface seismic sources and downhole receivers
#68Methods of analyzing cement integrity in annuli of a multiple-cased well using machine learning
#69Ultrasonic transducer with reduced backing reflection
#70Ultrasonic acoustic sensors for measuring formation velocities
#71Downhole acoustic measurement
#72ACOUSTIC INTEGRITY IMAGING
#73Depth and distance profiling with fiber optic cables and fluid hammer
#74Time-reversed nonlinear acoustics for wellbore integrity characterization
#75Joint sensor orientation and velocity model calibration
#76SYSTEMS AND METHODS FOR DETECTION OF WELL PROPERTIES
#77Leak localization using acoustic-signal correlations
#78Sensing-acquisition-wireless transmission integrated microseismic monitoring system and method
#79B annulus acoustic pressure sensing
#80Measurement-while-drilling method and device for assessing outburst risk of coal seam
#81Multi-frequency acoustic interrogation for azimuthal orientation of downhole tools
#82Methods and systems for characterizing fractures in a subterranean formation
#83PORTABLE SEISMIC SURVEY DEVICE, SYSTEM AND METHOD
#84Deblending method using patterned acquisition seismic data
#85Heterogeneous subsurface imaging systems and methods
#86Simulation of geophone data from distributed acoustic sensing data
#87Cement bonding evaluation with a sonic-logging-while-drilling tool
#88Systems and methods for high-resolution travel time and move-out velocity estimation using downhole linear receiver arrays
#89Blast reconciliation for mines
#90Quasi-static Stoneley slowness estimation
#91Fracture wave depth, borehole bottom condition, and conductivity estimation method
#92System and method for spatially imaging and characterizing properties of rock formations using specular and non-specular beamforming
#93Real-time determination of mud slowness, formation type, and monopole slowness picks in downhole applications
#94METHODS AND APPARATUS FOR CONFIRMATION TIME BREAK (CTB) DETERMINATION AND SHOTPOINT IN-SITU RECORDING IN SEISMIC ELECTRONIC DETONATORS
#95Switchable distributed acoustic sensing system for wellbore environment
#96Measuring formation porosity and permeability
#97Wellbore sand detection using passive acoustic array
#98PORTABLE SEISMIC SURVEY DEVICE AND METHOD
#99Systems and methods for using Stoneley waves for bottom-hole proximity detection
#100Fracture Mapping Using Piezoelectric Materials
#101Well integrity analysis using sonic measurements over depth interval
#102Interior Seismic Data Generator
#103High precision acoustic logging processing for compressional and shear slowness
#104Evaluation of cased hole perforations in under-pressured gas sand reservoirs with stoneley wave logging
#105Formation acoustic property measurement with beam-angled transducer array
#106Casing thickness estimation by frequency correlation
#107Seismic-Source Apparatus And Detection System
#108System and method for leak detection
#109METHODS AND SYSTEMS EMPLOYING WINDOWED FREQUENCY SPECTRA ANALYSIS TO DERIVE A SLOWNESS LOG
#110Systems and methods for performing hydraulic fracturing in vertically heterogenous regions
#111Systems and methods deriving hydraulic fracture growth from microseismicity analysis
#112Distributed acoustic sensing systems and methods employing multiple pulse widths
#113Passive ranging using acoustic energy originating from a target wellbore
#114Method and system for estimating borehole condition using stoneley measurement
#115Method to calculate acquisition illumination
#116Fracture and stress characterization using layer thickness variation
#117Evaluation of physical properties of a material behind a casing utilizing guided acoustic waves
#118System for automatically locating microseismic events
#119Multi-sensor workflow for evaluation of water flow in multiple casing strings with distributed sensors data
#120Multi-mode acoustic tool and method
#121Real-time pattern recognition and automatic interpretation of acoustic reflection images
#122Acoustic sensing with azimuthally distributed transmitters and receivers
#123Acoustic tool eccentering correction
#124Downhole acoustic mapping
#125METHOD OF AND SYSTEM FOR CREATING A SEISMIC PROFILE
#126Non-contact system and methodology for measuring a velocity vector
#127Leak detection via doppler shift differences in moving hydrophones
#128Logging system and method for evaluation of downhole installation
#129Method for near-real-time, high-resolutionsignal filtering in noisy environments
#130Method for determining a proportion cube
#131MEMS-based transducers on a downhole tool
#132Acoustic logging tool utilizing fundamental resonance
#133Methods to image acoustic sources in wellbores
#134Magneto-seismic exploration method and system
#135METHOD AND APPARATUS FOR GENERATING SEISMIC PULSES TO MAP SUBTERRANEAN FRACTURES
#136Method and system for fracture detection using acoustic waves
#137Techniques for removing interface noise from acoustic log data
#138Adaptive feedback for phase estimation and adjustment
#139SYSTEMS AND METHODS FOR DETECTION OF WELL PROPERTIES
#140Method and apparatus for confirmation time break (CTB) determination and shotpoint in-situ recording in seismic electronic detonators
#141Method and system for direct slowness determination of dispersive waves in a wellbore environment
#142Method for determining fracture proppant spatial distribution using passive seismic signals
#143Systems, methods, and computer-readable media for determining shear-wave to compressional-wave velocity ratios in well casings
#144Systems and methods for evaluating annular material using beamforming from acoustic arrays
#145FRACTURE TREATMENT ANALYSIS BASED ON SEISMIC REFLECTION DATA
#146Downhole surveillance
#147Controlled-frequency downhole seismic source
#148Measuring formation porosity and permeability
#149Adaptive optimization of output power, waveform and mode for improving acoustic tools performance
#150Method for estimating anisotropic mechanical properties of a reservoir using sonic logging data
#151Workflow for determining stresses and/or mechanical properties in anisotropic formations
#152Multi-sensor workflow for evaluation of water flow in multiple casing strings with distributed sensors data
#153Methods, systems and devices for predicting reservoir properties
#154METHODS AND SYSTEMS FOR MONITORING A TARGET USING REFRACTION DATA ACQUIRED WITH BURIED SOURCES AND BURIED SENSORS
#155Pressure compensated capacitive micromachined ultrasound transducer for downhole applications
#156Tube wave generation
#157Guided acoustic waves isolation system for downhole applications
#158Independent simultaneous shooting acquisition with vertical seismic profile recording
#159METHOD AND APPARATUS FOR GENERATING SEISMIC PULSES TO MAP SUBTERRANEAN FRACTURES
#160Methods for evaluating rock properties while drilling using drilling rig-mounted acoustic sensors
#161Acoustic source with piezoelectric actuator array and stroke amplification for broad frequency range acoustic output
#162Differential phase semblance apparatus, systems, and methods
#163Acoustic logging apparatuses and methods
#164Wide bandwidth borehole dipole source for acoustic logging
#165Acoustic source apparatus, systems, and methods
#166Systems and methods for downhole cement evaluation
#167Method and apparatus for controlling output of an array of seismic sources
#168Analytic estimation apparatus, methods, and systems
#169Formation property determination apparatus, methods, and systems
#170System and method for acoustic imaging using a transducer array
#171Volumetric and non-volumetric sources-based seismic survey and method
#172Devices, systems and methods for low frequency seismic borehole investigations
#173INTRA-BED SOURCE VERTICAL SEISMIC PROFILING
#174Methods for evaluating rock properties while drilling using drilling rig-mounted acoustic sensors
#175Measurement of permeability in borehole in the presence of mudcake
#176SEISMIC IMAGING APPARATUS
#177System and method for reconstructing microseismic event statistics from detection limited data
#178Binning method for borehole imaging
#179Selection and removal of acoustic baseline signal for enhanced cement bond evaluation