Inventor

CHEN SONGHUA

US107 patents

⚠️ This page may combine multiple inventors who share the name “CHEN SONGHUA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CHEN SONGHUA

BAKER HUGHES INC

In-situ heavy-oil reservoir evaluation with artificial temperature elevation

Determination of T1 relaxation time from multiple wait time NMR logs acquired in the same or different logging passes

NMR log processing using wavelet filter and iterative inversion

Gas zone evaluation by combining dual wait time NMR data with density data

In-situ heavy-oil reservoir evaluation with artificial temperature elevation

Objective oriented methods for NMR log acquisitions for estimating earth formation and fluid properties

Method for processing NMR data without phase-alternating-pair (PAP) averaging

Pore-scale geometric models for interpretation of downhole formation evaluation data

Pore-scale geometric models for interpretation of downhole formation evaluation data

Pore-scale geometric models for interpretation of downhole formation evaluation data

Automatic adjustment of NMR pulse sequence to optimize SNR based on real time analysis

Pore-scale geometric models for interpretation of downhole formation evaluation data

Rapid NMR multi-frequency T1 and T2 acquisition for earth formations evaluation with MWD or wireline tools

Use of redundant data for log quality measurements

Automatic adjustment of NMR pulse sequence to optimize SNR based on real time analysis

Method and apparatus for characterizing heavy oil components in petroleum reservoirs

Method and apparatus for reservoir fluid characterization in nuclear magnetic resonance logging

Echo-decay-acceleration data acquisition method for gas identification using a low-field gradient

Time-domain data integration of multiple gradient, multiple TE echo trains

Optimal excitation pulse shaping for multi-frequency measurements in NMR logging

Method of detecting, quantifying and correcting borehole contaminations from multi-frequency, multi-sensitive-volume NMR logging data

Method for correcting downhole NMR data contaminated by borehole signals

Determination of gas saturation radial profile from multi-frequency NMR data

HALLIBURTON ENERGY SERVICES INC

Combined NMR-resistivity measurement apparatus, systems, and methods

Downhole nuclear magnetic resonance (NMR) tool with transversal-dipole antenna configuration

Azimuthally-selective downhole nuclear magnetic resonance (NMR) tool

Analyzing fluids in core samples contained in pressurized NMR core holders with 1H and 19F NMR

Pressurized NMR core analyzer

Downhole detection of lithium containing minerals by lithium 7 nuclear magnetic resonance

Determining sub-surface formation wettability characteristics utilizing nuclear magnetic resonance and bulk fluid measurements

Processing nuclear magnetic resonance signals in a downhole environment

Nuclear magnetic resonance sensing and fluid sampling device for subterranean characterization

Temperature correction of NMR relaxation time distributions

Method and system for extracting reservoir fluid sample

Nuclear magnetic resonance sensing device for downhole measurements

Methods and systems employing NMR-based prediction of pore throat size distributions

Modeling subterranean fluid viscosity

Reducing motion effects on nuclear magnetic resonance relaxation data

CHEN SONGHUA

Precision marking of subsurface locations

Data acquisition and processing for invasion profile and gas zone analysis with NMR dual or multiple interecho spacing time logs

Method of discerning water from hydrocarbon fluids using downhole NMR instruments in petroleum reservoirs with formation brine

NMR contrast logging

Formation evaluation capability from near-wellbore logging using relative permeability modifiers

WESTERN ATLAS INT INC

Methods for acquisition and processing of nuclear magnetic resonance signals for determining fluid properties in petroleum reservoirs having more than one fluid phase

Method for improving the accuracy of NMR relaxation distribution analysis with two echo trains

ONG JOO TIM

Multiphase meter to provide data for production management

LI LILONG

NMR flow metering using velocity selection and remote detection

WU JIANGHUI

Method and apparatus for predicting petrophysical properties from NMR data in carbonate rocks

GLADKIKH MIKHAIL N

Method of determining downhole formation grain size distribution using acoustic and NMR logging data

LI JING

Apparatus and methods of data inversion