ClassID:

135724

E21B49/005 - CPC Classification

Classification description:

Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells Testing the nature of borehole walls or the formation by using drilling mud or cutting data

Recent Application in this class:
#1
20260146531
2026-05-28

METHOD FOR LOG PREDICTION FROM DRILLING CUTTINGS

#2
20260139588
2026-05-21

METHOD TO CONTROL THE FLOW RATES OF FOCUS SAMPLING PROBE TO ENABLE FASTER CAPTURE OF CLEAN FORMATION FLUID

#3
20260118255
2026-04-30

SYSTEMS AND METHODS FOR USING HYPERSPECTRAL FEATURES FOR MINERALOGICAL INFORMATION AT WELL SITES

#4
20260103979
2026-04-16

SYSTEMS AND METHODS FOR DISCOVERING AND RECOVERING SUBSURFACE FLUIDS AND VERIFICATION OF SUBSURFACE STORAGE FLUIDS

#5
20260094256
2026-04-02

REAL-TIME FORMATIONS CUTTINGS ANALYSIS SYSTEM USING COMPUTER VISION AND MACHINE LEARNING APPROACH DURING A DRILLING OPERATION

#6
20260092520
2026-04-02

ADAPTIVE COLLARING USING ROCK FRACTURE INDICATION

#7
20260085587
2026-03-26

SURFACE TRANSIT TIME DETERMINATION

#8
20260078671
2026-03-19

TRANSMISSION TOMOGRAPHY FOR STRUCTURE AND MINEROLOGY OF SOLIDS IN PROJECTILE MOTION

#9
20260063555
2026-03-05

CONTINUOUS EMISSIONS MONITOR FOR DIRECTED-ENERGY BOREHOLE DRILLING

#10
20260028888
2026-01-29

Intelligent Cuttings Sampler

#11
20260002440
2026-01-01

ANALYSIS OF DRILLING CUTTINGS

#12
20250382858
2025-12-18

METHODS FOR DETERMINING SAFE DENSITY WINDOWS OF HYDRATE FORMATION CONSIDERING MUD CAKES

#13
20250376619
2025-12-11

FLUORESCENT METAL ORGANIC FRAMEWORKS (MOFS) FOR DRILLING DEPTH CORRELATION AND WATERFRONT MAPPING

#14
20250369354
2025-12-04

METHOD AND SYSTEM FOR MEASURING RHEOLOGY OF DRILLING FLUID USING MICROCHIPS AND MODIFIED POISEUILLE'S FORMULA

#15
20250369335
2025-12-04

A METHOD FOR REAL-TIME ADJUSTMENT OF AT LEAST ONE DRILLING PARAMETER DURING ROCK DRILLING BY A DRILLING MACHINE

#16
20250361804
2025-11-27

DRILL BIT SELECTION FOR DRILLING A TARGET WELL BASED ON DRILLING SIMULATION OF AN OFFSET WELL

#17
20250327788
2025-10-23

METHOD AND SYSTEM FOR DETERMINING IN-SITU STRESSES IN ANISOTROPIC ROCKS

#18
20250320812
2025-10-16

CALCULATING BOREHOLE STABILITY INDEX FOR DRILLING OPERATIONS

#19
20250320791
2025-10-16

SYSTEMS AND METHODS FOR DETERMINING REACTIVITY INDICES FOR CARBON DIOXIDE SEQUESTRATION

#20
20250290410
2025-09-18

PRODUCTION PERFORMANCE IMPROVEMENT USING FIELD SAMPLING AND ROCK-FLUID INTERACTION TESTING

#21
20250290409
2025-09-18

DRAINAGE HEIGHT IN PLACE EVALUATION FOR A WELL DRILLED INTO MULTIPLE FORMATION LAYERS

#22
20250290401
2025-09-18

SYSTEM AND METHOD FOR MEASURING CHARACTERISTICS OF CUTTINGS FROM DRILLING OPERATIONS WITH COMPUTER VISION

#23
20250290378
2025-09-18

CUTTINGS TRAP FOR "AT BIT" MEASUREMENT OF DRILLED CUTTINGS

#24
20250278825
2025-09-04

HIGH-CONTRAST ULTRAVIOLET FLUORESCENCE IMAGING SYSTEMS AND METHODS FOR PIXEL-LEVEL DETECTION OF CRUDE OIL IN DRILL CUTTINGS

#25
20250270927
2025-08-28

ESTIMATION OF FLUID SATURATION OF A FORMATION FROM INTEGRATION OF MULTIPLE WELL LOGS

#26
20250258316
2025-08-14

FORMATION POROSITY ESTIMATION FROM DIGITAL IMAGES

#27
20250251087
2025-08-07

METHOD FOR MANAGING A GAS COMING FROM A DRILLING WELL

#28
20250244262
2025-07-31

IN-SITU ANALYSIS OF DRILLING FLUID SOLIDS DURING WELLBORE DRILLING

#29
20250237140
2025-07-24

METHOD AND SYSTEM FOR DIFFERENTIAL DRILLING MUD MEASUREMENT AND ALARMS

#30
20250215791
2025-07-03

ON SURFACE GAMMA RAY SENSOR FOR CALIBRATING CUTTINGS DEPTH IN UNDERBALANCED COILED TUBING DRILLING RIGS

#31
20250188836
2025-06-12

METHODS AND SYSTEMS FOR PREDICTING FLUID TYPE WHILE GEOSTEERING

#32
20250188835
2025-06-12

DETERMINING HYDROCARBON RESOURCE CHARACTERISTICS VIA MUD LOGGING

#33
20250179904
2025-06-05

COMPUTER IMPLEMENTED METHOD FOR REAL-TIME LWD PROFILE PREDICTION IN THE INTERVALS FROM THE DRILL TIP TO THE LIMIT OF THE DEPTH PROFILE OFFSETS

#34
20250163766
2025-05-22

METHOD FOR USING DRILLING FLUID IN DRILLING OPERATIONS, DRILLING FLUID AND ITS USE

#35
20250155397
2025-05-15

IDENTIFICATION OF CLAYS IN POROUS MEDIA BY INTEGRATING ELECTROMAGNETIC MEASUREMENTS AND TEMPERATURE GRADIENT ANALYSIS

#36
20250123420
2025-04-17

GAS ADVANCED DEVELOPMENT (GAD) WORKFLOW

#37
20250116640
2025-04-10

CROSS QUALITY CONTROL OF MUD LOGGING MEASUREMENTS

#38
20250109687
2025-04-03

METHOD FOR CHARACTERIZING ORGANIC RICH ROCK MATURITY AND PRODUCIBILITY

#39
20250109686
2025-04-03

METHOD FOR ASSESSING WELLBORE GAS MEASUREMENTS

#40
20250102478
2025-03-27

Automated Diluter For Calibration Of A Gas Chromatograph In Oilfield Applications

#41
20250101865
2025-03-27

METHODS AND SYSTEMS FOR DETERMINING WELL SHUT-IN PRESSURES OF OIL AND GAS WELL DRILLING

#42
20250067179
2025-02-27

MONITORING AND WARNING DEVICE FOR ROCK BURST IN COAL MINE

#43
20250067175
2025-02-27

SYSTEMS AND METHODS FOR DISCOVERING AND RECOVERING SUBSURFACE FLUIDS AND VERIFICATION OF SUBSURFACE STORAGE FLUIDS

#44
20250067173
2025-02-27

BENCHTOP AUTOMATED CUTTINGS IMAGING AND ANALYSIS

#45
20250067172
2025-02-27

SYSTEM AND METHOD FOR AUTOMATIC WELL LOG NORMALIZATION IN MULTIPLE WELLS

#46
20250060484
2025-02-20

MATERIAL IMAGING SYSTEM AND METHOD

#47
20250060314
2025-02-20

CONTINUOUS EMISSIONS MONITOR FOR DIRECTED-ENERGY BOREHOLE DRILLING

#48
20250059886
2025-02-20

Determining Subsurface Formation Boundaries

#49
20250043681
2025-02-06

USING ARTIFICIAL INTELLIGENCE METHODS TO EXPLOIT WELL LOGGING DATA

#50
20250043680
2025-02-06

CUTTINGS MAGNETIC SUSCEPTIBILITY AND ASSOCIATED DEVICE

#51
20250043674
2025-02-06

SYSTEM AND METHOD FOR DRILLING PERFORMANCE BENCHMARKING AND DRILLING ADJUSTMENT

#52
20250034980
2025-01-30

SYSTEM AND METHOD FOR PERFORMING DRILLING TRAJECTORY PLANNING

#53
20250027410
2025-01-23

SYSTEM AND METHOD FOR ESTIMATING ROCK PARTICLE PROPERTIES BASED ON IMAGES AND GEOLOGICAL INFORMATION

#54
20250027409
2025-01-23

AUTOMATED METHOD AND SYSTEM TO DETECT SEGMENT ROCK PARTICLES

#55
20250003336
2025-01-02

CAPTURING MOST SEVERE FAILURE REGIONS AROUND BOREHOLE IN ANALYTICAL POROELASTIC ANALYSIS

#56
20250003335
2025-01-02

MAGNETIC FIELD-BASED IDENTIFICATION SYSTEM FOR MINIATURIZED DOWNHOLE SENSOR

#57
20240427050
2024-12-26

Identification of Borehole Flow Members

#58
20240426211
2024-12-26

METHOD FOR DETERMINING PHYSICAL PROPERTIES OF ROCKS AND ROCK MATRIX FROM DRILLING DATA, MUD GAS DATA, AND DRILL CUTTINGS IMAGES

#59
20240420299
2024-12-19

High-contrast ultraviolet fluorescence imaging systems and methods for pixel-level detection of crude oil in drill cuttings

#60
20240418085
2024-12-19

Methods and systems for predicting fluid type while geosteering

#61
20240402384
2024-12-05

INTEGRATIVE WORKFLOW OF CONSTRUCTING MECHANICAL EARTH MODEL (MEM) FOR WELLBORE DRILLING

#62
20240401476
2024-12-05

TESTING METHODOLOGY AND WORKFLOW TO QUANTIFY DRILLING FLUIDS INFLUENCES ON FORMATION MECHANICAL PROPERTIES

#63
20240401462
2024-12-05

SYSTEM AND METHOD FOR WELL DRILLING CONTROL BASED ON BOREHOLE CLEANING

#64
20240377537
2024-11-14

MATERIAL IMAGING SYSTEM AND METHOD

#65
20240369733
2024-11-07

ESTIMATION OF PHYSICAL PARAMETERS FROM MEASUREMENTS USING SYMBOLIC REGRESSION

#66
20240368977
2024-11-07

Thermal Conductivity Measurements for Optimizing Geothermal Field Construction

#67
20240344442
2024-10-17

SYSTEM AND METHOD FOR MEASURING CHARACTERISTICS OF CUTTINGS FROM DRILLING OPERATIONS WITH COMPUTER VISION

#68
20240328311
2024-10-03

METHODS AND SYSTEMS FOR EVALUATING ROCK CUTTINGS USING RFID TAGS

#69
20240318551
2024-09-26

RESERVOIR FLUID TYPING

#70
20240295170
2024-09-05

CALIBRATION FOR MUDLOGGING

#71
20240294824
2024-09-05

FLUORESCENT METAL ORGANIC FRAMEWORKS (MOFS) FOR DRILLING DEPTH CORRELATION AND WATERFRONT MAPPING

#72
20240287898
2024-08-29

METHOD FOR ESTIMATING A QUANTITY OF A HYDROCARBON IN MUD RECOVERED FROM A WELL, AND A DEVICE AND PROGRAM USING THE METHOD

#73
20240287897
2024-08-29

SYSTEMS AND METHODS FOR ESTIMATING WELL PARAMETERS AND DRILLING WELLS

#74
20240280016
2024-08-22

METHODS FOR QUANTIFYING AND TRACKING AMINE-BASED SHALE INHIBITORS IN DRILLING FLUIDS

#75
20240263553
2024-08-08

SYSTEM AND METHOD TO DETERMINE AND CONTROL WELLBORE STABILITY

#76
20240218791
2024-07-04

UTILIZING DYNAMICS DATA AND TRANSFER FUNCTION FOR FORMATION EVALUATION

#77
20240191621
2024-06-13

METHOD AND SYSTEM FOR DETERMINING HIGH PERMEABILITY ZONES WITHIN A RESERVOIR USING WEATHERING INDEX DATA

#78
20240191610
2024-06-13

METHOD AND SYSTEM FOR DETERMINING EQUIVALENT CIRCULATING DENSITY OF A DRILLING FLUID USING IMAGE-BASED MACHINE LEARNING

#79
20240183269
2024-06-06

CONSTANT MASS GAS EXTRACTION FOR GAS EVALUATION DURING DRILLING

#80
20240175353
2024-05-30

Borehole acquisition operation interval via Stoneley wave

#81
20240167381
2024-05-23

Control systems and methods for rock cuttings identification

#82
20240167380
2024-05-23

ANALYZING DRILL CUTTINGS USING ACOUSTIC ANALYSIS

#83
20240167348
2024-05-23

SMART SOLIDS CONTROL SYSTEM

#84
20240144458
2024-05-02

REAL-TIME FORMATIONS CUTTINGS ANALYSIS SYSTEM USING COMPUTER VISION AND MACHINE LEARNING APPROACH DURING A DRILLING OPERATION

#85
20240117734
2024-04-11

REAL-TIME MEASUREMENTS OF PHYSICAL PROPERTIES OF DRILLED ROCK FORMATIONS DURING DRILLING OPERATIONS

#86
20240102374
2024-03-28

BOREHOLE CORRECTION FOR RESISTIVITY LWD TOOLS WITH ULTRASONIC LOG WHILE DRILLING CALIPER

#87
20240076977
2024-03-07

PREDICTING HYDROCARBON SHOW INDICATORS AHEAD OF DRILLING BIT

#88
20240044247
2024-02-08

Method for detecting borehole caving based on cuttings and elements logging data

#89
20240018869
2024-01-18

SYSTEMS AND METHODS FOR DISCOVERING AND RECOVERING SUBSURFACE FLUIDS AND VERIFICATION OF SUBSURFACE STORAGE FLUIDS

#90
20240011393
2024-01-11

SYSTEM AND METHOD FOR AUTOMATED DRILL CUTTING MONITORING

#91
20240011392
2024-01-11

FAILURE CRITERION SELECTION BASED ON A STATISTICAL ANALYSIS OF FINITE ELEMENT MODEL RESULTS AND ROCK IMAGING DATA FOR WELLBORE MODELLING

#92
20240003250
2024-01-04

METHOD AND SYSTEM FOR FORMATION PORE PRESSURE PREDICTION PRIOR TO AND DURING DRILLING

#93
20240003249
2024-01-04

SYSTEMS AND METHODS FOR ESTIMATING WELL PARAMETERS AND DRILLING WELLS

#94
20230400599
2023-12-14

PORE PRESSURE IN UNCONVENTIONAL FORMATIONS

#95
20230392496
2023-12-07

Injecting multiple tracer tag fluids into a wellbore

#96
20230383648
2023-11-30

METHOD FOR DETERMINING ROCK MATRIX AND FRACTURE PERMEABILITY BY USING POROELASTODYNAMICS AND DENSITY AVERAGING SCHEMES

#97
20230374903
2023-11-23

Autonomous Interpretation of Rock Drill Cuttings

#98
20230374897
2023-11-23

Band-stop filter for volume analysis of downhole particles

#99
20230351580
2023-11-02

Cuttings imaging for determining geological properties

#100
20230333277
2023-10-19

Lithofacies guided core description using unsupervised machine learning

#101
20230314646
2023-10-05

Reservoir fluid mapping in mature fields

#102
20230304397
2023-09-28

METHODS FOR PREDICTING FORMATION PROPERTIES

#103
20230287786
2023-09-14

Modified sonic tool for advanced formation evaluation

#104
20230279774
2023-09-07

Method for real-time interpretation of pressure transient test

#105
20230272710
2023-08-31

SOLIDS ANALYSIS OF DRILLING AND COMPLETION FLUIDS

#106
20230272709
2023-08-31

Choice of LCM Materials and Loading for Loss Circulation Control

#107
20230258079
2023-08-17

Method and system for determining a lithology of a subterranean formation

#108
20230258078
2023-08-17

Method and system for formation pore pressure prediction with automatic parameter reduction

#109
20230220770
2023-07-13

Systems and methods for performing lithological classification of cuttings based on calibrated photographs of rock particles

#110
20230220760
2023-07-13

SYSTEM AND METHOD FOR DRILLING MUD ANALYSIS, LOGGING AND DRILLING CONTROL

#111
20230193753
2023-06-22

PREDICTING FORMATION PORE PRESSURE IN REAL TIME BASED ON MUD GAS DATA

#112
20230184992
2023-06-15

INTEGRATION OF A FINITE ELEMENT GEOMECHANICS MODEL AND CUTTINGS RETURN IMAGE PROCESSING TECHNIQUES

#113
20230184985
2023-06-15

Ranging solenoid coil transmitter around downhole bottom hole assembly elements

#114
20230184705
2023-06-15

Systems and methods for determining the mineralogy of drill solids

#115
20230184109
2023-06-15

REAL-TIME MONITORING OF MICROBIAL CONTAMINATION IN OILFIELD DRILLING FLUIDS AND CEMENT

#116
20230184107
2023-06-15

Machine-Learning based Rig-Site On-Demand Drilling Mud Characterization, Property Prediction, and Optimization

#117
20230175393
2023-06-08

ESTIMATING COMPOSITION OF DRILLING FLUID IN A WELLBORE USING DIRECT AND INDIRECT MEASUREMENTS

#118
20230167738
2023-06-01

Method for determining properties of a formation

#119
20230144743
2023-05-11

Correction for cuttings lag

#120
20230144184
2023-05-11

ADVANCED GEOLOGICAL PREDICTION METHOD AND SYSTEM BASED ON PERCEPTION WHILE DRILLING

#121
20230141596
2023-05-11

Multifunctional fluorescent tags for subterranean applications

#122
20230140917
2023-05-11

Polymer nano-clays as multifunctional mud logging barcode tracers

#123
20230123954
2023-04-20

METHOD FOR PROCESSING SAMPLED PROPPANT DURING HYDRAULIC FRACTURING

#124
20230119992
2023-04-20

Determination of mud-filtrate contamination and clean formation fluid properties

#125
20230112008
2023-04-13

Method to tailor cement properties and optimize injection schedule for near wellbore integrity in carbon storage/injection wells

#126
20230105670
2023-04-06

SURFACE LOGGING WITH CUTTINGS-BASED ROCK PETROPHYSICS ANALYSIS

#127
20230096906
2023-03-30

Joint characterization method of pore structures based on least square method and data processing method

#128
20230093958
2023-03-30

Non-invasive time-based sag testing apparatus

#129
20230084875
2023-03-16

Measuring formation properties and drilling mud properties using nuclear magnetic resonance in a wellbore

#130
20230078728
2023-03-16

Methods and systems for characterizing properties of reservoir rock

#131
20230054107
2023-02-23

Shale Shaker System Having Sensors, and Method of Use

#132
20230051333
2023-02-16

Directional drilling-exploring-monitoring integrated method for guaranteeing safety of underwater shield tunnel

#133
20220412214
2022-12-29

Flowline nipple / agitator tandem extraction system

#134
20220397035
2022-12-15

Methodology for down selection of surfactant formulations

#135
20220381938
2022-12-01

Formation evaluation at drill bit

#136
20220381144
2022-12-01

Drilling system with fluid analysis system

#137
20220372872
2022-11-24

Solvent extraction and analysis of formation fluids from formation solids at a well site

#138
20220372871
2022-11-24

System for performing comparison of received cuttings weights from a rig site cuttings storage unit and expected cuttings weight calculated using well bore geometry and received real time formation density data from LWD tools

#139
20220341313
2022-10-27

APPARATUS AND METHOD FOR ANALYSING DRILLING FLUID

#140
20220316311
2022-10-06

System and method for measuring characteristics of cuttings from drilling operations with computer vision

#141
20220307978
2022-09-29

Systems, methods, and apparatuses for real-time characterization of rock cuttings during rock drill cutting

#142
20220307370
2022-09-29

Well system including a downhole particle measurement system

#143
20220290561
2022-09-15

Device and method for testing the three-phase saturation of oil, gas and water in high-temperature and high-pressure planar model

#144
20220275723
2022-09-01

Field data acquisition and virtual training system

#145
20220275707
2022-09-01

Volumetric treatment fluid distribution to remove formation damage

#146
20220268153
2022-08-25

Systems and methods for processing drill cuttings

#147
20220251951
2022-08-11

System and method for formation properties prediction in near-real time

#148
20220251950
2022-08-11

Method and system for real-time hole cleaning using a graphical user interface and user selections

#149
20220235655
2022-07-28

Apparatus and method for observing performance of a treatment fluid in a core sample

#150
20220229201
2022-07-21

PORE PRESSURE IN UNCONVENTIONAL FORMATIONS

#151
20220188712
2022-06-16

Utilizing micro-services for optimization workflows of borehole operations

#152
20220186604
2022-06-16

Method and system for determining depths of drill cuttings

#153
20220179121
2022-06-09

Estimating mineralogy and reconstructing elements of reservoir rock from spectroscopy data

#154
20220170366
2022-06-02

3D in-situ characterization method for heterogeneity in generating and reserving performances of shale

#155
20220156595
2022-05-19

SYSTEM AND METHOD FOR SUPERVISED LEARNING OF PERMEABILITY OF EARTH FORMATIONS

#156
20220154570
2022-05-19

System and method for drilling performance benchmarking and drilling adjustment

#157
20220127961
2022-04-28

Methods to characterize wellbore fluid composition and provide optimal additive dosing using MEMS technology

#158
20220127959
2022-04-28

Reservoir characterization using rock geochemistry for lithostratigraphic interpretation of a subterranean formation

#159
20220112801
2022-04-14

Systems and methods for drilling a wellbore using taggant analysis

#160
20220107279
2022-04-07

Data-driven solutions for inverse elemental modeling

#161
20220082547
2022-03-17

Methods and systems for correction of oil-based mud filtrate contamination on saturation pressure

#162
20220082014
2022-03-17

Estimation of fluid saturation of a formation from integration of multiple well logs

#163
20220065769
2022-03-03

Determining formation porosity and permeability

#164
20220065107
2022-03-03

Plasma chemistry based analysis and operations for pulse power drilling

#165
20220065105
2022-03-03

Estimating formation isotopic concentration with pulsed power drilling

#166
20220065103
2022-03-03

Plasma chemistry derived formation rock evaluation for pulse power drilling

#167
20220065102
2022-03-03

Plasma chemistry based analysis and operations for pulse power drilling

#168
20220065101
2022-03-03

Injecting multiple tracer tag fluids into a wellbore

#169
20220065044
2022-03-03

Plasma chemistry derived relation between arc and spark for pulse power drilling

#170
20220057538
2022-02-24

Machine learning approach for identifying mud and formation parameters based on measurements made by an electromagnetic imager tool

#171
20220056799
2022-02-24

INFERRING WELLSITE OPERATIONS FROM POWER CONSUMPTION MEASUREMENTS

#172
20220056329
2022-02-24

Fluorescent dye loaded polymeric taggants for depth determination in drilling wells

#173
20220025753
2022-01-27

HYDRAULIC FRACTURING JOB PLAN REAL-TIME REVISIONS UTILIZING COLLECTED TIME-SERIES DATA

#174
20220017805
2022-01-20

Degradable tags for depth correlation mud logging

#175
20220010667
2022-01-13

Setting a wellbore casing in a salt formation

#176
20210405014
2021-12-30

Methods and devices correlating well-logs to cuttings lithologies for synthetic core generation

#177
20210404331
2021-12-30

FINE IDENTIFICATION METHOD OF TIGHT RESERVOIR FRACTURE BASED ON CONVENTIONAL LOGGING DATA

#178
20210404330
2021-12-30

MUD GAS LOG TRANSFORMATION

#179
20210389239
2021-12-16

Laser dispersion spectroscopy for borehole analysis

#180
20210381373
2021-12-09

Systems and methods for transient testing of hydrocarbon wells

#181
20210372281
2021-12-02

Determination of mud-filtrate contamination and clean formation fluid properties

#182
20210363884
2021-11-25

Methods to characterize wellbore fluid composition and provide optimal additive dosing using MEMS technology

#183
20210357777
2021-11-18

Integrated advanced visualization tool for geosteering underbalanced coiled tubing drilling operations

#184
20210348509
2021-11-11

Systems and methods for estimating well parameters and drilling wells

#185
20210348493
2021-11-11

Methodology to maximize net reservoir contact for underbalanced coiled tubing drilling wells

#186
20210324683
2021-10-21

Downhole reconfiguration of pulsed-power drilling system components during pulsed drilling operations

#187
20210318259
2021-10-14

Determining a cation exchange capacity of a rock sample

#188
20210293142
2021-09-23

Contamination estimation of formation samples

#189
20210285324
2021-09-16

Method for determining the integrity of a solid bonding between a wellbore and a casing

#190
20210277762
2021-09-09

Systems and methods for determining mud weight window during wellbore drilling

#191
20210270132
2021-09-02

IN-LINE MUD LOGGING METHOD

#192
20210263008
2021-08-26

Methods and systems for estimation of oil formation volume factor

#193
20210255119
2021-08-19

IN-LINE MUD LOGGING APPARATUS

#194
20210254459
2021-08-19

IN-LINE MUD LOGGING SYSTEM

#195
20210231835
2021-07-29

Cluster efficiency operation control

#196
20210231011
2021-07-29

Fracture complexity operation control

#197
20210230992
2021-07-29

Fracturing control

#198
20210207477
2021-07-08

Methods and devices for evaluating the contents of materials

#199
20210202042
2021-07-01

INFORMATION CLASSIFICATION PROCESSING METHOD OF CARBONATE RESERVOIR AND INFORMATION DATA PROCESSING TERMINAL

#200
20210199592
2021-07-01

System and method for material characterization

#201
20210189875
2021-06-24

Estimating a formation index using pad measurements

#202
20210140274
2021-05-13

Holistic approach to hole cleaning for use in subsurface formation exploration

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Portable in-situ gas pressure measuring device for shallow gas-bearing stratum and measuring method thereof

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SYSTEM AND METHOD FOR QUANTITATIVE NET PAY AND FLUID DETERMINATION FROM REAL-TIME GAS DATA

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Methods and systems for characterizing clay content of a geological formation

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Methods and systems for preparing drill cuttings for measuring petrophysical properties of subsurface formations

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20210115789
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Drilling with cuttings density calibration

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20210108511
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Method and system for determining a lithology of a subterranean formation

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Determining broadband mud properties

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Machine learning approach for identifying mud and formation parameters based on measurements made by an electromagnetic imager tool

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Determination of mud-filtrate contamination and clean formation fluid properties

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Determining hydrocarbon resource characteristics via mud logging

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Oil well monitoring apparatus and method

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20210062647
2021-03-04

Application of electrochemical impedance spectroscopy for analyzing sag of drilling fluids

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20210048551
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Electromagnetic insulating component used in well logging tool pad

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Downhole failure analysis and processing method based on the particle diameter distribution of cuttings

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Colorimetric detection of amine-based shale inhibitors

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20200408732
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Methods for evaluating rock properties

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2020-12-31

Methods and systems for characterizing properties of reservoir rock

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2020-12-31

Surface logging wells using depth-tagging of cuttings

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DEVICE FOR EXTRACTING GAS FROM A DRILLING FLUID FOR A SYSTEM FOR CONDUCTING SUBTERRANEAN DRILLING OPERATIONS

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Estimating wear for BHA components using borehole hardness

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Real-time monitor and control of active clay in water-based drilling fluids

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Downhole reconfiguration of pulsed-power drilling system components during pulsed drilling operations

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Shaker vibration and downhole cuttings measurement analysis and processing

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Real-time equivalent circulating density of drilling fluid

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Automated real-time drilling fluid density

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2020-11-05

Method for simulating the discontinuity of the hydraulic fracture wall in fractured reservoirs

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2020-10-29

Method and system for estimating in-situ porosity using machine learning applied to cutting analysis

#230
20200332654
2020-10-22

Volume, size, and shape analysis of downhole particles

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2020-10-01

Analysis of gas in drilling fluids

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Oilfield production particulate monitoring assembly

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2020-09-10

Batch sample preparation apparatus

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Cutting tool with porous regions

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2020-09-10

Shale shaker system having sensors, and method of use

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METHOD FOR DETERMINING DOWNHOLE CHARACTERICS IN A PRODUCTION WELL

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Measuring source rock potential using a quantum electronic scanner

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Calculation of mud angle for imaging wells with oil based muds

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Method and apparatus for measuring capillary pressure and foam transport in porous media

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Mud circulation system for reducing the swab pressure while tripping out

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2020-07-16

Method and system for acquiring geological data from a bore hole

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2020-06-25

Modeling of fluid introduction and/or fluid extraction elements in simulation of coreflood experiment

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2020-05-28

GRADED PRESSURE DROP TYPE DETECTION SYSTEM AND DETECTION METHOD OF BOREHOLE CRACKS

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System and method for measuring characteristics of cuttings from drilling operations with computer vision

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Gross mineralogy and petrology using Raman spectroscopy

#246
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2020-05-14

System and method for scanning while-drilling rock fragments in an oil and gas field

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2020-05-07

Solvent extraction and analysis of formation fluids from formation solids at a well site

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2020-04-16

Surface logging wells using depth-tagging of cuttings

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2020-04-16

Dynamic transducer normalization

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2020-03-26

Analyzing drilling fluid rheology at a drilling site

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2020-03-12

Methods and devices for evaluating the contents of materials

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2020-02-20

Experimental device for simulating invasion of shallow fluid into wellbore

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2020-02-13

CORELESS INJECTIVITY TESTING METHOD

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2020-01-30

Method for rock burst prevention by active support reinforcement and active pressure relief

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2020-01-16

APPARATUS FOR COLLECTING SAMPLES OF DRILL CUTTINGS AND METHOD OF USE

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Method and apparatus for analyzing gas from drilling fluids

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20190383786
2019-12-19

System for simulating in situ downhole drilling conditions and testing of core samples

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Gas ratio volumetrics for reservoir navigation

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20190368349
2019-12-05

Method for determining gelation time in a core plug

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2019-12-05

Identifying a line of coherent radiation in a captured image of illuminated downhole particles

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Determining safe drilling mud weight

#262
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Gas isotope analysis

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Method and system for determining depths of drill cuttings

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Methods and systems for correction of oil-based mud filtrate contamination on saturation pressure

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System and method for transmitting signals downhole

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Fluid sampling probe

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2019-11-07

Roller cone resistivity sensor

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Method and system for analyzing rock samples

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Systems and methods for optimizing rate of penetration in drilling operations

#270
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2019-10-10

System and method for well drilling control based on borehole cleaning

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Detecting saturation levels of a sample core using electromagnetic waves

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Vibration while drilling data processing methods

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Enhancing Productivity of Subterranean Formations

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System and method for surface management of drill-string rotation for whirl reduction

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System and method for analysis and control of drilling mud and additives

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CORRECTING BOREHOLE SIGNAL CONTRIBUTIONS FROM NEUTRON-INDUCED GAMMA RAY SPECTROSCOPY LOGS

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System and method for material characterization

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Measuring source rock potential using a quantum electronic scanner

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Mapping chemostratigraphic signatures of a reservoir with rock physics and seismic inversion

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System and method for using geological analysis for the designing of stimulation operations

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2019-05-09

Detection and quantification of gas mixtures in subterranean formations

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2019-02-28

Tracer and method

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2019-02-14

SPECTRAL BOREHOLE IMAGING SYSTEMS AND METHODS

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2019-02-07

Dual mode electromagnetic imaging of a borehole

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2019-02-07

Formation testing

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2019-01-17

Determining spotting fluid properties

#287
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2019-01-17

Method for real-time interpretation of pressure transient test

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2019-01-10

Apparatus and method for semi-three-dimensional rock formation imaging along the borehole sidewall

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2018-12-13

Methods and devices for evaluating the contents of materials

#290
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2018-12-06

Logging fracture toughness using drill cuttings

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2018-12-06

Acoustic coupler for downhole logging while drilling applications

#292
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Mud pump and vacuum gas extraction system

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2018-11-15

Drilling rig gas trap testing

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2018-11-15

Real-time onsite mechanical characterization of wellbore cuttings

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2018-11-08

Gas-extraction device and associated analysis assembly and method

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2018-10-25

Methods and devices for evaluating the contents of materials

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2018-10-25

METHOD FOR IMPROVING RESERVOIR PERFORMANCE BY USING DATA SCIENCE

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Estimation of fracture properties based on borehole fluid data and acoustic imaging

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2018-10-04

Method for the estimation of kerogen maturity by X-ray photoelectron spectroscopy

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2018-09-06

Determining standoff between a wall of a wellbore and a tool disposed in the wellbore