Fluid inflow sensing in a wellbore and related systems and methods

Movement noise suppression in a moving array for downhole leakage localization

Ultrasonic wellbore anti-collision monitoring system and monitoring method

Method and apparatus to detect gas influx using mud pulse acoustic signals in a wellbore

DETECTION AND QUANTIFICATION OF SAND FLOWS IN A BOREHOLE

Flowmeter with attenuating ribbed transducer housings

Method and system for monitoring post-stimulation operations through acoustic wireless sensor network

Method and system for monitoring sand production through acoustic wireless sensor network

Detecting downhole sand ingress locations

Distributed acoustic sensing autocalibration

Detecting downhole sand ingress locations

DAS data processing to identify fluid inflow locations and fluid type

Expandable filtration media and gravel pack analysis using low frequency acoustic waves

Method and system for generating a completion design using a streamline model

Device and method to position an end effector in a well

Well and overburden monitoring using distributed acoustic sensors

DOWNHOLE TELEMETRY SYSTEM

Detecting downhole sand ingress locations

Slug flow monitoring and gas measurement

Tool position detection system

Flow monitoring system

Logging while running casing

INSTALLING CABLES IN BOREHOLES BY AN EVERTING LINER

Detecting downhole events using acoustic frequency domain features

Disposing a carrier downhole in a wellbore to evaluate an earth formation

Advanced passive interference management in directional drilling system, apparatus and methods

Directional sensitive fiber optic cable wellbore system

Distributed acoustic sensing system with phase modulator for mitigating faded channels

Production logging inversion based on DAS/DTS

Downhole nonlinear acoustics measurements in rock formations using dynamic acoustic elasticity and time reversal

Method and apparatus for optical sensing

Detecting a screen-out in a wellbore using an acoustic signal

Perforating systems and flow control for use with well completions

Low frequency DAS well interference evaluation

Downhole tool with an ultrasonic probe for measuring fluid flow properties

Locating new hydrocarbon fields and predicting reservoir performance from hydrocarbon migration

Flow rate signals for wireless downhole communication

Real-Time Model for Diverter Drop Decision using DAS and Step Down Analysis

Method to predict reservoir formation permeability using combined acoustic and multi-frequency dielectric measurements

Flow velocity meter and method of measuring flow velocity of a fluid

Methods and networks to determine a boundary of a cement mixture

System and method for estimation and prediction of production rate of a well via geometric mapping of a perforation zone using a three-dimensional acoustic array

Directional sensitive fiber optic cable wellbore system

Methods and systems for determining fluid density by distributed acoustic sensing

Downhole acoustic leak detection and profiling

Real-time monitoring and control of diverter placement for multistage stimulation treatments

Wellbore sand detection using passive acoustic array

RISER JOINT SYSTEM, WELL DRILLING SYSTEM AND METHOD FOR WELL DRILLING SYSTEM

Methods and apparatus to characterize acoustic dispersions in a borehole

Restimulation process using coiled tubing and fiber optics

Method and system for detecting whether an acoustic event has occurred along a fluid conduit

Monitoring system with an instrumented surface top sub

USING FLUIDIC DEVICES TO ESTIMATE WATER CUT IN PRODUCTION FLUIDS

Wellbore leakage detection tool and method for assembling such tool

Detecting downhole events using acoustic frequency domain features

Systems and methods for dynamic liquid level monitoring and control

Method of drilling a subterranean borehole

Apparatus and Method of Quasiperiodic Sequence Acoustic Isolator for Down-Hole Applications

Integrated logging tool method for identifying well damage

METHOD FOR MONITORING QUALITY ASSURANCE OF CHEMICALS IN SUBSEA UMBILICAL SYSTEMS TO AVOID BLOCKAGE

System for deploying communication components in a borehole

Integrated method of determining and repairing damage in a well casing

Flow measurement insert

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

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

Advanced passive interference management in directional drilling system, apparatus and methods

Systems and methods to use triangulation through one sensor beamforming in downhole leak detection

Downhole tool for detecting pipe leaks

KICK DETECTION SYSTEM AND METHOD FOR DRILLING WELL AND ASSOCIATED WELL DRILLING SYSTEM

System and method for monitoring mud flow in a component of drilling system

Frequency weighting in broadband acoustic beamforming

Multilateral well sensing system

SQUEEZE TARGET SELECTION METHODS AND SYSTEMS

Flexural wave measurement for thick casings

Transducers and acoustic emitters for fiber-optic-based acoustic sensing

Real-time bottom-hole flow measurements for hydraulic fracturing with a doppler sensor in bridge plug using DAS communication

System and method for leak detection

Modular electro-optic flowmeter system for downhole

Battery coil engaging members for downhole tools

Acoustic imaging agent

Stitching methods to enhance beamforming results

Battery coil engaging members for downhole tools

Passive ranging to a target well using a fiber optic ranging assembly

Selective stimulation of reservoir targets

Method and apparatus for identifying fluids behind casing

Estimation of flow rates using acoustics in a subterranean borehole and/or formation

Method of performing integrated fracture and reservoir operations for multiple wellbores at a wellsite

Downhole acoustic source localization

Passive ranging using acoustic energy originating from a target wellbore

Flow prediction model that is a function of perforation cluster geometry, fluid characteristics, and acoustic activity

Optical microphone to diagnose actuators

Method, apparatus by method, and apparatus of guidance positioning members for directional drilling

Logging perforation flow in wellbore

Apparatus and method of propagation and spatial location analysis by acoustic array for down-hole applications

Continuous Subsurface Carbon Dioxide Injection Surveillance Method

Method for evaluating and monitoring formation fracture treatment using fluid pressure waves

Method of acoustic surveying

Cross-well seismic monitoring of carbon dioxide injection

Device and method to image flow in oil and gas wells using phased array doppler ultrasound

Acoustic housing for tubulars

Downhole multiphase flow sensing methods

Distributed acoustic sensing system with variable spatial resolution

Acoustic Imaging with Expandable Microcapsules

Production logs from distributed acoustic sensors

Method and apparatus for optical sensing

System and method for determining bottomhole conditions during flowback operations of a shale reservoir

Acoustic downhole leak classification and quantification

Downhole fluid detection using surface waves

Slug flow monitoring and gas measurement

Systems and methods for monitoring a running tool

Leak detection via doppler shift differences in moving hydrophones

ACOUSTIC SOURCE IDENTIFICATION APPARATUS, SYSTEMS, AND METHODS

Acoustic anisotropy log visualization

Acoustic array signal processing for flow detection

Ultrasonic flow meter system and method for measuring flow rate

In-situ borehole fluid speed and attenuation measurement in an ultrasonic scanning tool

Fluid analysis with Coriolis effect flowmeter

MEMS-based transducers on a downhole tool

Subsea equipment acoustic monitoring system

Acoustic logging tool utilizing fundamental resonance

Method for downhole leak detection

FLUID FLOW METERING WITH POINT SENSING

Methods to image acoustic sources in wellbores

Hydraulic fracture monitoring by low-frequency das

DAS method of estimating fluid distribution

Wellbore monitoring system using strain sensitive optical fiber cable package

Strain sensitive optical fiber cable package for downhole distributed acoustic sensing

Low frequency distributed acoustic sensing

Opto-acoustic flowmeter for use in subterranean wells

Downhole microseismic detection for passive ranging to a target wellbore

Distributed fiber optic monitoring of vibration to generate a noise log to determine characteristics of fluid flow

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

Manipulation of multi-component geophone data to identify downhole conditions

Methods and apparatus for computing zonal flow rates in reservoir wells

Flow sensing in subterranean wells

Multi-sensor workflow for evaluation of gas flow in multiple casing strings with distributed sensors

Method and apparatus for optical sensing

Optical sensor and method of use

Method and apparatus for optical sensing

Method of sealing a fracture in a wellbore and sealing system

Well treatment design based on three-dimensional wellbore shape

Multifunction wellbore tubular penetration tool

Submersible pump monitoring

Detecting gas in a wellbore fluid

Apparatus and method for a matrix acoustic array

Fracture characterisation

Sensing annular flow in a wellbore

Blowout rate correction methods and systems

In-situ ultrasonic measuring system for natural gas flux at the hydrocarbon seeps at the seafloor

Method of estimating multi-phase fluid properties in a wellbore utilizing acoustic resonance

Methods for well completion

Method for detecting leakage in an underground hydrocarbon storage cavern

Sound baffle device and system for detecting acoustic signals

Apparatus for detecting acoustic signals in a housing

Flow Monitoring Tool

Apparatus and methods of extracting reflections from acoustic array data

PULSE-WAVE ULTRASOUND PRODUCTION WELL LOGGING METHOD AND TOOL

Methods and systems employing a flow prediction model based on acoustic activity and proppant compensation

Method and system for monitoring fluid flow in a conduit

Determining locations of acoustic sources around a borehole

Slug flow monitoring and gas measurement

Validation of cased-hole acoustic tools

AT-bit downhole sensor and transmitter

Flow sensing fiber optic cable and system

METHOD AND SYSTEM FOR MONITORING FLUID FLUX IN A WELL

ULTRASONIC VISCOMETER

Analyzing subsurface material properties using a laser vibrometer

Acoustic measurement of wellbore conditions

Determining resonance frequency and quality factor

Distributed acoustic sensing system with variable spatial resolution

Method and apparatus for optical sensing

Distributed acoustic sensing system with variable spatial resolution

Device for detecting change in underground medium

Subsurface fiber optic stimulation-flow meter

Downhole acoustic density detection

Asymmetric bender bar transducer

Tube wave generation

Resonator assembly limiting magnetic particle accumulation from well fluids

DAS-based downhole tool orientation determination

Bender bar transducer having stacked encapsulated actuators

Methods and systems for monitoring a subterranean formation and wellbore production

Determining cement impedance from a formation boundary

Methods and systems for an integrated acoustic and induction logging tool

Kick detection systems and methods

Well monitoring by means of distributed sensing means

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

Methods for evaluating rock properties while drilling using drilling rig-mounted acoustic sensors

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

Devices and methods for downhole acoustic imaging

Reflection-only sensor for fluid acoustic impedance, sound speed, and density

Method and apparatus for spectral noise logging

TRANSDUCER ASSEMBLY

Sonic logging for assessing well integrity

Subsea equipment acoustic monitoring system

Monitoring fluid flow in a downhole assembly

Microseismic monitoring with fiber-optic noise mapping

Flow control system

Method of drilling a subterranean borehole

Method and system for monitoring well operations

Variable stiffness downhole tool housing

Method for monitoring a flow using distributed acoustic sensing

Modulated opto-acoustic converter

Fracture evaluation through cased boreholes

Acoustic determination of the position of a piston with buffer rods

Acoustic determination of the position of a piston within a sample bottle

Closed loop deployment of a work string including a composite plug in a wellbore

ELASTOGRAPHY FOR CEMENT INTEGRITY INSPECTION

Acoustic transducer apparatus, systems, and methods

Hydraulic fracture monitoring using active seismic sources with receivers in the treatment well

Downhole tool for determining flow velocity using measurements from a transducer and a plurality of electrodes

Acoustic standoff and mud velocity using a stepped transmitter

System and device for acoustic measuring in a medium

Flow monitoring using fibre optic distributed acoustic sensors

FLOW VELOCITY AND ACOUSTIC VELOCITY MEASUREMENT WITH DISTRIBUTED ACOUSTIC SENSING

Downhole fluid tracking with distributed acoustic sensing

System and method for acoustic imaging using a transducer array

Method of acoustic surveying

Integrated acoustic phase separator and multiphase fluid composition monitoring apparatus and method

Pulse-echo acoustic transducer

Loudness based method and system for determining relative location of an acoustic event along a channel

Active seismic monitoring of fracturing operations and determining characteristics of a subterranean body using pressure data and seismic data

Location of a leak in a pipe

Integrated fiber optic monitoring system for a wellsite and method of using same

Manipulation of multi-component geophone data to identify downhole conditions

Fracture characterization

Crystal sensor made by ion implantation for sensing a property of interest within a borehole in the earth

Estimation of depletion or injection induced reservoir stresses using time-lapse sonic data in cased holes

Methods for evaluating rock properties while drilling using drilling rig-mounted acoustic sensors

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

Look ahead advance formation evaluation tool

Pore pressure from spectroscopy and sonic data

System and method of facilitating oilfield operations utilizing auditory information

Acoustic velocity measurements using tilted transducers

Method and device to measure perforation tunnel dimensions

Early kick detection in an oil and gas well

Fracture monitoring

Radon migration of acoustic data

Simultaneous ultrasonic cross-correlation and transit time measurements for multiphase flow rate analysis

Well monitoring by means of distributed sensing means

Method and apparatus for measuring fluid process variable in a well

Downhole acoustic emission formation sampling

Sonic/acoustic monitoring using optical distributed acoustic sensing

Active seismic monitoring of fracturing operations and determining characteristics of a subterranean body using pressure data and seismic data

Mechanical tube wave sources and methods of use for liquid filled boreholes

Method for detecting and locating fluid ingress in a wellbore

Microhydraulic fracturing with downhole acoustic measurement

Directional sensitive fiber optic cable wellbore system

Semiconductor device including leadframe with a combination of leads and lands and method

System for kick detection during a drilling operation

System for well monitoring