ULTRASONIC IMAGING DEVICE AND METHOD FOR WELLS

Multi-state triggered system and method for remote automatic monitoring and early warning of landslide mass

Discrete volumetric acoustic and resistivity method and apparatus for sub-seabed surveying

Reflection seismology internal multiple estimation

UNDERWATER DETECTION APPARATUS AND UNDERWATER DETECTION METHOD

Surveying with low frequency impulse sources

Marine survey source firing control

Systems and methods to enhance 3-D prestack seismic data based on non-linear beamforming in the cross-spread domain

RANDOMIZING SWEEPS IN A MARINE SURVEY

Inline source

Individual Actuation within a Source Subarray

Acquisition of ultra-long offset seismic data for full waveform inversion during seismic land acquisition

Dual frequency ultrasonic and sonic actuator with constrained impact mass

POSITIONING OF SEISMIC EQUIPMENT IN A TOWED MARINE ARRAY

SOURCE ARRAY FOR MARINE SEISMIC SURVEYING

TUNED SEISMIC SOURCE ARRAYS

Protective structure for a seismic source array

Spatial distribution of marine vibratory sources

Ultrasonic imaging device and method for wells

Coded Signals for Marine Vibrators

Individual actuation within a source subarray

Coding of signals for efficient acquisition

System and method for performing seismic exploration with multiple acquisition systems

Method and system with low-frequency seismic source

Methods and systems for seismic imaging using coded directivity

Adaptable seismic source for seismic surveys and method

Method for acquiring and processing marine seismic data to extract and constructively use the up-going and down-going wave-fields emitted by the source

Method to determine optimal spacing between seismic energy sources utilizing mutual admittance

Subaqueous underground survey system and subaqueous underground survey method

Estimation of a far field signature in a second direction from a far field signature in a first direction

Analytically generated shooting schedules for use with patterned and simultaneous source acquisition

Shear wave source for VSP and surface seismic exploration

Method and apparatus for controlling output of an array of seismic sources

Vibrator source array beam-forming and method

Stationary marine vibratory source for seismic surveys

Methods and systems for marine survey acquisition

System and method for preventing cavitation in controlled-frequency marine seismic source arrays

Vibrator source array load-balancing method and system

System and method for generating 3D images of non-linear properties of rock formation using surface seismic or surface to borehole seismic or both

Method and system for selecting parameters of a seismic source array

Seismic Source Array

Hyperbolic shooting method and device

Method for optimizing acoustic source array performance

Methods and systems for computing notional source signatures from near-field measurements and modeled notional signatures

Method for acquiring seismic data

Constant energy displacements

Determination of near surface geophyscial properties by impulsive displacement events

Method for acquiring and processing marine seismic data to extract and constructively use the up-going and down-going wave-fields emitted by the source(s)

Method for optimizing acoustic source array performance

Seismic acquisition method and system

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

METHOD FOR CREATING AN IMPROVED SWEEP FOR A SEISMIC SOURCE

Passive seismic data acquisition and processing using multi-level sensor arrays

Position determination of a seismic source array

Position determination of a seismic source array

Device and method for generating a beam of acoustic energy from a borehole, and applications thereof

Device and method for generating a beam of acoustic energy from a borehole, and applications thereof

Method and system for selecting parameters of a seismic source array

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

Multi-frequency borehole imager

SYSTEM AND METHOD FOR REDUCING SIGNATURE VARIATION OF SEISMIC SOURCES

Method for optimizing acoustic source array performance

Seismic vibrator array and method for using

Method and apparatus for seismic exploration

Measuring far field signature of a seismic source

Foldable marine seismic source

CONTROLLING SEISMIC SOURCE ELEMENTS BASED ON DETERMINING A THREE-DIMENSIONAL GEOMETRY OF THE SEISMIC SOURCE ELEMENTS

Method for optimizing the power supply for a towed linear transmit antenna for transmitting in omnidirectional mode

Dynamic acoustic focusing utilizing time reversal

Methods and systems for determining signatures for arrays of marine seismic sources for seismic analysis

Emission of seismic vibrations by a train consisting of vibrator trucks

Method of seismic source monitoring using modeled source signatures with calibration functions

Apparatus and method for carrying out seismic surveys