NEURAL NETWORK FOR AUTOMATED MICROSEISMIC DETECTION AND LOCATION

METHODS AND SYSTEMS FOR LEAST-SQUARES WAVE-EQUATION KIRCHHOFF MIGRATION USING WAVE PROPAGATION

FIRST ARRIVAL WAVE REVERSE TIME MIGRATION METHOD AND SYSTEM BASED ON EXCITATION AMPLITUDE

METHOD AND APPARATUS FOR SEISMIC IMAGING WITH VSP WHILE-DRILLING AND WELL-DRIVEN

HIGHER-ORDER PARALLEL FAST SWEEPING METHOD IN ANISOTROPIC MEDIUM

DEPTH MIGRATION IN SEISMIC IMAGING

METHODS AND SYSTEMS FOR LOCATING HYDROCARBONS USING TRAVELTIME-BASED REFLECTION FULL WAVEFORM INVERSION

SUBSURFACE CONDITION DETECTION USING TUBE WAVES IN A MULTI-WELL SYSTEM

VELOCITY IDENTIFICATION METHOD AND APPARATUS FOR INTERBED MULTIPLES

DEPTH UNCERTAINTY ESTIMATION USING INTERVAL-DOMAIN ANISOTROPIC VTI VELOCITY AND TRAVEL TIME DETECTABILITY

REFLECTION SEISMOLOGY INVERSION WITH QUALITY CONTROL

METHODS AND APPARATUS FOR ESTIMATING SEISMIC DEPTH UNCERTAINTY

SEISMIC DATA RECONSTRUCTION USING CORRECTED LOCAL TRAVELTIME OPERATORS

SYSTEMS AND METHODS FOR SHORT-TERM PREDICTION OF EARTHQUAKE PARAMETERS USING IONOSPHERIC PRECURSORS

Wavefield Travel-time Inversion using Eikonal Solver

SURFACE-CONSISTENT TRAVEL-TIMES INVERSION WITH ACCURACY ESTIMATION

VIRTUAL ARRAYS FOR EARTHQUAKE EARLY WARNING SYSTEMS

METHOD AND APPARATUS FOR ADAPTIVE CROSS-CORRELATION BASED FULL WAVEFORM INVERSION

METHOD TO CORRECT ERRONEOUS LOCAL TRAVELTIME OPERATORS

TIME PRESERVING FULL WAVEFORM INVERSION (TP-FWI)

METHOD AND SYSTEM FOR DETERMINING MIGRATION DATA USING CROSS-SPREAD GATHERS AND PARALLEL PROCESSING

EFFICIENT NONLINEAR BEAMFORMING VIA ON-THE-FLY MODEL-SPACE RECONSTRUCTION

Near Surface Modeling and Drilling Hazard Identification for a Subterranean Formation

Systems for short-term prediction of earthquake parameters using ionospheric precursors

METHOD AND SYSTEM FOR DETERMINING MIGRATION DATA USING MULTIBLOCK GATHERS

METHOD AND SYSTEM FOR ESTIMATING CONVERTED-WAVE STATICS

ROBUST SOURCE LOCALIZATION WITH JOINT TIME ARRIVAL AND VELOCITY ESTIMATION FOR CABLE CUT PREVENTION

MARINE SEISMIC IMAGING

METHOD OF PROCESSING SEISMIC DATA ACQUIRED BY REFLECTION SEISMIC SURVEY

Simultaneous common-offset migration

Method for short-term prediction of earthquake parameters using ionospheric precursors

Method and systems for computational efficiency 3D prestack Kirchhoff depth migration

SYSTEM AND METHOD FOR COMPENSATING FOR ATTENUATION OF SEISMIC ENERGY

Detection and Removal of Delayed Seismic Travel Times Produced by Velocity Inversions

SEISMIC DATA PROCESSING METHOD FOR RESOLVING THE NEAR-SURFACE IN THE PRESENCE OF VELOCITY INVERSIONS

Multi-wavefield seismic detection method and system based on construction noise of shield machine

Method and system using wave-equation for obtaining traveltime and amplitude used in Kirchhoff migration

Downhole ultrasound image correction in oil based mud

Seismic velocity modeling

Decompaction of subsurface region using decompaction velocity

COMPUTER SYSTEM AND DATA PROCESSING METHOD

Full waveform inversion velocity guided first arrival picking

Systems and methods to correct seismic data for undesired effects caused by near surface velocity variations by correcting for long-wavelength statics

Systems and methods for high-resolution travel time and move-out velocity estimation using downhole linear receiver arrays

Generating a model for seismic velocities in a subsurface region using inversion with lateral variations

Methods and systems for processing slowness values from borehole sonic data

Method and device for monitoring the subsoil of the earth under a target zone

Velocity tomography using time lags of wave equation migration

Geophone depth calibration

Well logging to identify low resistivity pay zones in a subterranean formation using elastic attributes

Anisotropy model guided fracture properties extraction from VSP data

Method For Computing Time Shifts Between Seismic Signals

Equivalent linear velocity for first arrival picking of seismic refraction

System and method for seismic imaging

Method and Apparatus for Active Seismic Shear Wave Monitoring of Hydro-Fracturing of Oil and Gas Reservoirs Using Arrays of Multi-Component Sensors and Controlled Seismic Sources

Reflection seismology multiple imaging

Echo detection and measurement in noisy environment for downhole logging

System and method for marine seismic modeling

Downhole ultrasound image correction in oil based mud

Method to improve DAS channel location accuracy using global inversion

Robust arrival picking of seismic vibratory waves

Systems and methods for high-resolution travel time and move-out velocity estimation using downhole linear receiver arrays

First-break picking of seismic data and generating a velocity model

Survey design for data acquisition using marine non-impulsive sources

Generating a velocity model for a subsurface structure using refraction travel time tomography

SEISMIC TRAVEL TIME TOMOGRAPHIC INVERSION METHOD BASED ON TWO POINT RAY TRACING

Method and device for estimating sonic slowness in a subterranean formation

SURFACE DETECTION AND LOCATION OF MICROSEISMIC EVENTS AND EARTHQUAKES WITHOUT THE USE OF A VELOCITY MODEL

System and method for improved full waveform inversion

Multi-scale manifold learning for full waveform inversion

Evaluation of cased hole perforations in under-pressured gas sand reservoirs with stoneley wave logging

METHODS AND SYSTEMS EMPLOYING WINDOWED FREQUENCY SPECTRA ANALYSIS TO DERIVE A SLOWNESS LOG

Method for determining the hydraulic permeability of rocks in a subsurface region

Apparatus and method for calculating efficient 3D traveltime by using coarse-grid mesh for shallow depth source

Omnidirectional vector seismic data processing method and apparatus, computer-readable storage medium and device

Passive ranging using acoustic energy originating from a target wellbore

Method of and apparatus for carrying out acoustic well logging

Continuous Subsurface Carbon Dioxide Injection Surveillance Method

Joint inversion of compressional and shear seismic data in native time domains

Monitoring microseismic events

Method of characterising a subsurface volume

Travel-time objective function for full waveform inversion

Global inversion based estimation of anisotropy parameters for orthorhombic media

Joint inversion of seismic data

Surface wave tomography using sparse data acquisition

Expedient processing and waveform inversion of seismic data

Eikonal Solver for Quasi P-Waves in Anisotropic Media

Layered linear inversion techniques for locating microseismic activity

Model-based time-preserving tomography

PARAMETER VARIATION IMPROVEMENT FOR SEISMIC DATA USING SENSITIVITY KERNELS

Automated in motion railway seismic wheel failure detection system

Anisotropy analysis using direct and reflected arrivals in seismic survey data

Method of coalescence microseismic mapping including model's uncertainty

Target-oriented process for estimating fracture attributes from seismic data

Estimation of water properties from seismic data

WAVEFORM-BASED SEISMIC LOCALIZATION WITH QUANTIFIED UNCERTAINTY

PROCESSING MICROSEISMIC DATA

History matching of time-lapse crosswell data using ensemble kalman filtering

Method for locating seismic diffractors in subsurface formations from a wellbore

Neural Network Signal Processing of Microseismic Events

METHODS AND SYSTEMS FOR LOCATING SEISMIC EVENTS

Forming a geological model

Device and method for computing depth velocity variations

Device and method for computing depth velocity variations

System and method for subsurface characterization including uncertainty estimation

Sifting Models of a Subsurface Structure

Forming a geological model

Vector 3-component 3-dimensional Kirchhoff prestack migration

Model-based time-preserving tomography

Method for multi-azimuth prestack time migration for general heterogeneous, anisotropic media

Traveltime calculation in three dimensional transversely isotropic (3D TI) media by the fast marching method

Traveltime calculation in three dimensional transversely isotropic (3D TTI) media by the fast marching method

Estimating the time of arrival of a seismic wave

Vector 3-component 3-dimensional kirchhoff prestack migration

High-precison modeling method and system of three-dimensional velocity field for precise navigation of deep oil and gas