Core-position sensor

Intrinsic geological formation carbon to oxygen ratio measurements

Correcting for eccentricity of acoustic sensors in wells and pipes

Pipe thickness estimation with automatic channel quality assessment

Dynamic transducer normalization

Echo velocity measurements without using recessed ultrasonic transceiver

Casing imaging method

System and method to estimate a property in a borehole

Thickness value restoration in eddy current pipe inspection

Roller cone resistivity sensor

REMOTE-FIELD EDDY CURRENT CHARACTERIZATION OF PIPES

Apparatus and method for downhole data acquisition and or monitoring

Method and transducer for acoustic logging

Borehold testing device

METHOD AND APPARATUS FOR INVESTIGATING A BOREHOLE WITH A CALIPER

Systems, methods, and apparatuses for downhole lateral detection using electromagnetic sensors

Ultrasonic cutting detection

HIGH-RESOLUTION REMOTE-FIELD EDDY CURRENT CHARACTERIZATION OF PIPES

Remote field eddy current tools

Borehole imaging using amplitudes of refracted acoustic waves

Downhole calliper tool

Methods and Means for the Measurement of Tubing, Casing, Perforation and Sand-Screen Imaging Using Backscattered X-ray Radiation in a Wellbore Environment

Inspection of pipes with buckling effects

Remote field eddy current technique for corrosion inspection of multiple pipes including transition sections

Wellbore detector with azimuthal and spectral energy resolution

Advanced downhole waveform interpretation

Automated inversion workflow for defect detection tools

Borehole shape estimation

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

SIGNAL CANCELLATION IN PIPE INSPECTION

Systems, methods, and apparatuses for downhole lateral detection using electromagnetic sensors

Eddy-current responses in nested pipes

Planning and real time optimization of electrode transmitter excitation

Determining borehole parameters using ultrasonic and micro-resistivity calipers

SENSOR SYSTEM FOR BLOWOUT PREVENTER AND METHOD OF USE

Measuring lengths of resizable elements downhole

Lip skin sector and a method and apparatus for forming a lip skin sector

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

APPARATUS AND METHOD FOR SENSING A PIPE COUPLER WITHIN AN OIL WELL STRUCTURE

Receiving apparatus suitable for azimuthally acoustic logging while drilling

Method for in-situ calibration of electromagnetic corrosion detection tools

Systems and methods employing an acoustic caliper tool with tool inclination correction

Method and Apparatus for Investigating a Borehole with a Caliper

Measurement and control apparatus, systems, and methods

Energy radiation generator with bi-polar voltage ladder

Formation independent cement evaluation with active gamma ray detection

Dynamic sensing of the top of cement (TOC) during cementing of a well casing in a well bore

Acoustic sensing with azimuthally distributed transmitters and receivers

Encapsulated phased array segment for downhole applications

Measuring device and method for measuring a hole in the ground

Roller cone resistivity sensor

Acoustic detection of drill pipe connections

System and methodology for acoustic measurement driven geo-steering

Pulse generation for downhole logging

Evaluating and imaging volumetric void space location for cement evaluation

Acoustic calipering and analysis of annulus materials

High quality visualization in a corrosion inspection tool for multiple pipes

Resonance-based inversion of acoustic impedance of annulus behind casing

Generalized directional measurements and using symmetrized and anti-symmetrized angles to indicate orientation of anisotropy and formation boundaries

SLICKLINE DEPLOYED CASING INSPECTION TOOLS

Scale identifier

Whole-space inversion using phase correction method for multi-frequency dielectric array logging tool

System and method to estimate a property in a borehole

Downhole acoustic transducer, downhole probe and tool comprising such a transducer

Systems, methods, and apparatuses for downhole lateral detection using electromagnetic sensors

Borehole testing device

Downhole inspection with ultrasonic sensor and conformable sensor responses

Bore object characterization system for well assemblies

Apparatus and method for measuring a pipe within an oil well structure

Casing thickness measurement using acoustic wave correlation

Subterranean imager tool system and methodology

Micro-focused imaging of wellbore pipe defects

Holographic techniques for corrosion evaluation of wellbore pipes

Acoustic sensor metadata dubbing channel

Subsurface Pipe Dimension and Position Indicating Device

METHOD AND APPARATUS FOR INVESTIGATING A BOREHOLE WITH A CALIPER

Downhole sensor tool for measuring borehole conditions with fit-for-purpose sensor housings

Electromagnetic assessment of multiple conductive tubulars

Caliper tool with in-situ temperature compensation

Integrated Wellbore Caliper

Defects inspection through detection of magnetic fields

Apparatus and method for sensing a pipe coupler within an oil well structure

System and method for measuring gaps using an opto-analytical device

Tool for imaging a downhole environment

Method and apparatus for removal of the double indication of defects in remote eddy current inspection of pipes

Fiber optic vibration monitoring

Energy radiation generator with uni-polar voltage ladder

Energy radiation generator with bi-polar voltage ladder

System and methods for measuring borehole caliper in oil-based mud

Circumferential and longitudinal cutter coverage in continuation of a first bit diameter to a second expandable reamer diameter

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

System and method for acoustic imaging using a transducer array

Drilling tool, apparatus and method for underreaming and simultaneously monitoring and controlling wellbore diameter

Method of determining an element value

DRILLING TOOL, APPARATUS AND METHOD FOR UNDERREAMING AND SIMULTANEOUSLY MONITORING AND CONTROLLING WELLBORE DIAMETER

System and method to estimate a property in a borehole

Method for measuring remote field eddy current thickness in multiple tubular configuration

Methods and systems for determining standoff between a downhole tool and a geological formation

System and method for measuring borehole geometry while drilling

Method and apparatus for removal of the double indication of defects in remote eddy current inspection of pipes

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

System and method for measuring borehole conditions, in particular, verification of a final borehole diameter

Tool for imaging a downhole environment

Method and apparatus for investigating a borehole with a caliper

Systems, methods, and apparatuses for downhole lateral detection using electromagnetic sensors