Integrated dip from 3D resistivity tool and borehole imaging tool

Method of establishing formation resistivity

Formation resistivity imager with reduced leakage to mandrel

Electrical imager operating in oil-based mud and low resistive formation

Dynamic image compression for imaging while drilling applications

Method and apparatus for measuring borehole mud resistivity

HIGH RESOLUTION RESISTIVITY EARTH IMAGER

Methods for characterization of formations, navigating drill paths, and placing wells in earth boreholes

Borehole to surface electromagnetic transmitter

OBM resistivity image enhancement using principal component analysis with first moment estimation

Fracture Characterization Using Directional Electromagnetic Resistivity Measurements

Method and apparatus for logging a wellbore

Method of monitoring a hydrocarbon reservoir

System and method for imaging properties of subterranean formations

Pad device for resistivity imaging in the wells with oil based drilling fluid

Method to predict dense hydrocarbon saturations for high pressure high temperature

Image enhancement for resistivity features in oil-based mud image

Electrically conductive oil-based drilling fluids

Multilevel workflow method to extract resistivity anisotropy data from 3D induction measurements

Tool for imaging a downhole environment

Method for estimating formation permeability using time lapse measurements

Electrical cased well-logging method

SOURCE ROCK VOLUMETRIC ANALYSIS

Apparatus and method for balancing impedance of a resistivity measuring tool

System and method for improving surface electromagnetic surveys

System and method for electrical resistivity tomography and/or electrical impedance tomography

Method for interpreting dipping natural fracture and fault planes identified from borehole images

Drilling wells in compartmentalized reservoirs

Method and apparatus for well logging resistivity image tomography

Directional resistivity imaging using harmonic representations

Logging tool having shielded triaxial antennas

Method for estimating formation dip using combined multiaxial induction and formation image measurements

Externally mounted band antennae requiring minimal metal cutting on drillstring for reduction of mechanical stresses

Method and apparatus for borehole wall resistivity imaging with full circumferential coverage

Fluid conductivity measurement tool and methods

Formation resistivity imaging in conductive boreholes

High resolution resistivity earth imager

System and method for measuring resistivity of an earth formation with correction for mud electrical properties

SMART DATA SUBSURFACE DATA REPOSITORY SYSTEM, METHOD AND COMPUTER PROGRAM PRODUCT

Method and Apparatus for Imaging Boreholes

In situ measurements in formation testing to determine true formation resistivity

Measuring head and measuring method

Method and apparatus for focusing in resistivity measurement tools using independent electrical sources

Method to detect formation pore pressure from resistivity measurements ahead of the bit during drilling of a well

Method of finite-element discretization in heterogeneous and highly conductive grid cells

Logging while drilling system

High resolution capacitance high conductivity fluid sensor

ELECTRICAL CASED WELL-LOGGING METHOD

Method for quantifying resistivity and hydrocarbon saturation in thin bed formations

Non Polarized Contacts for Resistivity Measurements in Drill Cuttings Samples for Surface Logging While Drilling

One row wavelet sensor layout for resistivity imaging

Azimuthal measurement-while-drilling (MWD) tool

Dual standoff resistivity imaging instrument, methods and computer program products

Lightweight, low cost structure for formation conductivity measuring instrument

Method for improving the determination of earth formation properties

Method to improve downhole instruments

Computation of sensitivity for resistivity measurements

METHOD AND APPARATUS FOR OBTAINING ELECTRICAL IMAGES OF A BOREHOLE WALL THROUGH NONCONDUCTIVE MUD

Method and apparatus for tensorial micro-resistivity imaging in oil-based muds

Apparatus and method for measuring micro-resistivity anisotropy

Apparatus and method for resistivity measurements during rotational drilling

Fast method for reconstruction of 3D formation rock properties using modeling and inversion of well-logging data

Method and apparatus for imaging earth formation

Apparatus and method to measure fluid resistivity

Device and process for determination of the resistivity of a formation surrounding a cased borehole

Method and apparatus for improved current focusing in galvanic resistivity measurement tools for wireline and measurement-while-drilling applications

Computing water saturation in laminated sand-shale when the shale are anisotropic

Method and apparatus for improved depth matching of borehole images or core images

Method and device for determining the resistivity in a geological formation crossed by a cased well

Method and apparatus for azimuthal resistivity measurements in a borehole

Process for determining the resistivity of a formation through which a well equipped with a casing passes

Multi-mode microresistivity tool in boreholes drilled with conductive mud

Apparatus and methods for induction-SFL logging

Methods and systems for resistivity anisotropy formation analysis

Apparatus and method for resistivity measurements during rotational drilling

Borehole-to-surface near-source transient electromagnetic high-precision exploration method

Method for multichannel acquisition of geophysical data and system implementation

Method for multichannel acquisition of geophysical data and system implementation

Architecture for a multichannel geophysical data acquisition system and method of use

Architecture for a multichannel geophysical data acquisition system and method of use

Method for multichannel acquisition of geophysical data and system implementation

Architecture for a multichannel geophysical data acquisition system and method of use

System for multimode geophysical data acquisition

In-situ calibration for multi-component signals

Hemispherical dome electrode configuration and method of use

Thermodynamic housing for a geophysical data acquisition system and method of use

Method for multichannel acquisition of geophysical data and system implementation

Data transmission system

Simulating current flow through a well casing and an induced fracture

Subsurface data transfer using well fluids