Patents-Review.com
ClassID:

173336 ⎘

G01V3/26 - CPC Classification

Classification description:

Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device

Sub-classes:
Recent Application in this class:
#1
20260147133
2026-05-28

MONITORING SYSTEM FOR IDENTIFYING DEFECTS IN WELLBORE TUBING AND RODS

 #2
20250264018
2025-08-21

LOOK-AROUND/LOOK-AHEAD PIXEL-BASED INVERSION WORKFLOW FOR REAL TIME PREDICTION AHEAD OF THE BIT IN HORIZONTAL AND HIGH-ANGLE WELLS

 #3
20250215777
2025-07-03

IN-SITU DOWNHOLE MEASUREMENT CORRECTION AND CONTROL

 #4
20250189691
2025-06-12

CAPACITIVE-RESISTIVE IMAGING SYSTEM

 #5
20250172716
2025-05-29

INTEGRITY EVALUATION OF NESTED TUBULARS OF A WELL SYSTEM USING AZIMUTHAL AND NON-AZIMUTHAL INFORMATION

 #6
20250038394
2025-01-30

ELECTROMAGNETIC TOOL USING SLOTTED POINT DIPOLE ANTENNAS

 #7
20240410270
2024-12-12

STEERABILITY OF DOWNHOLE RANGING TOOLS USING ROTARY MAGNETS

 #8
20240301791
2024-09-12

INTER-WELL PETROPHYSICAL ASSESSMENT BY NANO-PARTICLE INJECTION IN THE FORMATION

 #9
20240280722
2024-08-22

Downhole component magnetic property estimation

 #10
20240255674
2024-08-01

WATERFLOOD FRONT IMAGING USING SEGMENTALLY INSULATED WELL LINERS AS ON-DEMAND ELECTRODES

 #11
20240247184
2024-07-25

PARTICLES FOR CARRIERS AND TRACERS

 #12
20230401490
2023-12-14

PREDICTING TRUE SAND RESISTIVITY IN LAMINATED SHALY SANDS WITH ARTIFICIAL INTELLIGENCE

 #13
20230375739
2023-11-23

METHODS AND APPARATUS FOR DETERMINING DIELECTRIC CONSTANT AND RESISTIVITY WITH ELECTROMAGNETIC PROPAGATION MEASUREMENTS

 #14
20230367030
2023-11-16

Method to automatically calibrate a downhole tool in an oil-based mud environment

 #15
20230365855
2023-11-16

OLIGONUCLEOTIDE-CONTAINING TRACER PARTICLES FOR SUBTERRANEAN APPLICATIONS

 #16
20230324579
2023-10-12

Data driven approach to develop petrophysical interpretation models for complex reservoirs

 #17
20230323766
2023-10-12

Data-Driven Constrained Model For Corrosion Inspection Tools

 #18
20230296012
2023-09-21

In-situ downhole measurement correction and control

 #19
20230279287
2023-09-07

Oligonucleotide-containing tracer particles for subterranean applications

 #20
20230238680
2023-07-27

Electromagnetic tool using slotted point dipole antennas

 #21
20230213323
2023-07-06

METHOD OF AND APPARATUS FOR DETERMINING VARIATIONS IN WALL THICKNESS IN FERROMAGNETIC TUBES

 #22
20230161068
2023-05-25

CORROSION EVALUATION OF NESTED CASINGS VIA PULSED EDDY CURRENT

 #23
20230151728
2023-05-18

Multi-well image reference magnetic ranging and interception

 #24
20230135986
2023-05-04

SYSTEMS AND METHODS FOR AN ARRAY OF DIFFERENT DOWNHOLE SENSORS IN A SINGLE TOOL BODY

 #25
20230102387
2023-03-30

Casing collar locator for drill pipe

 #26
20230100983
2023-03-30

System and method for estimating porosity of porous formations using permittivity measurements

 #27
20230088047
2023-03-23

Steerability of downhole ranging tools using rotary magnets

 #28
20230084947
2023-03-16

Method for identifying environmental effects in downhole data for hydrocarbon saturation estimation

 #29
20230067114
2023-03-02

Mixed air-hang response for correcting a formation signal of a mixed set measuring device

 #30
20230065802
2023-03-02

Particles for carriers and tracers

 #31
20230034745
2023-02-02

Apparatus for the measurement of ore in mine ore benches

 #32
20220381939
2022-12-01

Method for saturation evaluation of graphitic kerogen bearing formations

 #33
20220381142
2022-12-01

Remote digitization of electromagnetic telemetry signal

 #34
20220341310
2022-10-27

Universal bottomhole assembly node (UBHAN)

 #35
20220325617
2022-10-13

Magnetic sensor rotation and orientation about drill

 #36
20220286143
2022-09-08

Remote downhole signal decoder and method for signal re-transmission

 #37
20220214470
2022-07-07

Determining formation properties based on multi-component azimuthal measurements

 #38
20220179120
2022-06-09

Detecting drill pipe connection joints via magnetic flux leakage

 #39
20220099859
2022-03-31

Waterflood front imaging using segmentally insulated well liners as on-demand electrodes

 #40
20220050220
2022-02-17

Systems and methods for high-resolution travel time and move-out velocity estimation using downhole linear receiver arrays

 #41
20220035063
2022-02-03

Engineering completion and selective fracturing of lateral wellbores

 #42
20210389391
2021-12-16

System and Method for Reservoir Monitoring Using SQUID Magnetic Sensors

 #43
20210388713
2021-12-16

Method of extending a borehole of a relief well, bottomhole assembly, drill string, and other apparatus

 #44
20210356621
2021-11-18

Multi-step inversion using electromagnetic measurements

 #45
20210340866
2021-11-04

Logging tool with 4D printed sensing system

 #46
20210340862
2021-11-04

Electronic sensing of discontinuities in a well casing

 #47
20210278562
2021-09-09

Technologies for in-situ calibration of magnetic field measurements

 #48
20210277764
2021-09-09

Apparatus and methods for making azimuthal resistivity measurements

 #49
20210239517
2021-08-05

Determining structural tomographic properties of a geologic formation

 #50
20210239448
2021-08-05

Apparatus and method for determining borehole size with a borehole imaging tool

 #51
20210203353
2021-07-01

Remote downhole signal decoder and method for signal re-transmission

 #52
20210199837
2021-07-01

Magnetic freepoint indicator tool

 #53
20210189870
2021-06-24

System and method for monitoring water inrush

 #54
20210180441
2021-06-17

System and method for improving rotating survey accuracy

 #55
20210165121
2021-06-03

Systems and methods for determining properties of porous, fluid-filled geological formations based on multi-frequency measurements

 #56
20210148220
2021-05-20

Variation H coils calibration method for triaxial magnetometers

 #57
20210126337
2021-04-29

Electromagnetic tool using slotted point dipole antennas

 #58
20210124080
2021-04-29

Electromagnetic tool using slotted point dipole antennas

 #59
20210108502
2021-04-15

In-situ downhole measurement correction and control

 #60
20210102455
2021-04-08

Downhole fluid characterization methods and systems employing a casing with a multi-electrode configuration

 #61
20210087787
2021-03-25

Underground measuring apparatus

 #62
20210048553
2021-02-18

Method for improving the accuracy of mud angle measurements in borehole imagers

 #63
20210048552
2021-02-18

Multi-well fiber optic electromagnetic systems

 #64
20210048551
2021-02-18

Electromagnetic insulating component used in well logging tool pad

 #65
20210032971
2021-02-04

Universal bottomhole assembly node (UBHAN) providing communications to and from rotary steerable systems (RSS) and real time azimuthal resistivity imaging for geosteering and pressure while drilling (FWD) for well control

 #66
20210018648
2021-01-21

Methods for producing a log of material properties

 #67
20210018645
2021-01-21

Method to estimate formation resistivity

 #68
20200370416
2020-11-26

Locating multiple wellbores

 #69
20200363554
2020-11-19

Systems and methods for electromagnetic waterfront surveillance in a vicinity of an oil well

 #70
20200355841
2020-11-12

Systems and methods for locating and imaging proppant in an induced fracture

 #71
20200309985
2020-10-01

Permeability anisotropy assessment in subsurface anisotropic formations

 #72
20200304143
2020-09-24

Remote downhole signal decoder and method for signal re-transmission

 #73
20200291766
2020-09-17

Magnetic distance and direction measurements from a first borehole to a second borehole

 #74
20200271815
2020-08-27

Cased-well to cased-well active magnetic ranging

 #75
20200270982
2020-08-27

Relative azimuth correction for resistivity inversion

 #76
20200270980
2020-08-27

Azimuth estimation for directional drilling

 #77
20200263534
2020-08-20

Reentry and/or redrilling ranging using focused electrode virtual sets and simulated rotation

 #78
20200224527
2020-07-16

Methods and systems employing a rotating magnet and fiber optic sensors for ranging

 #79
20200217188
2020-07-09

Monitoring and mapping system of the space-time distribution of formation fluids in a reservoir and a completion and production plant of a well for the extraction of formation fluids

 #80
20200200004
2020-06-25

Measurement-while-drilling method and device for assessing outburst risk of coal seam

 #81
20200191645
2020-06-18

Determining structural tomographic properties of a geologic formation

 #82
20200191644
2020-06-18

Determining structural tomographic properties of a geologic formation

 #83
20200190966
2020-06-18

Magnetic ranging systems and methods using random electric spark excitation

 #84
20200182037
2020-06-11

Boundary tracking control module for rotary steerable systems

 #85
20200041684
2020-02-06

Passive magnetic ranging

 #86
20200033493
2020-01-30

Systems and methods for high-resolution travel time and move-out velocity estimation using downhole linear receiver arrays

 #87
20200024941
2020-01-23

Systems and methods for fracture mapping via frequency-changing integrated chips

 #88
20200003928
2020-01-02

Method and device for surface-borehole transient electromagnetic detection

 #89
20200003927
2020-01-02

Device and method for ground source transient electromagnetic near-field detection and related device

 #90
20200003042
2020-01-02

System and method for improving rotating survey accuracy

 #91
20190369289
2019-12-05

System, method and computer-program product for in-situ calibration of a wellbore resistivity logging tool

 #92
20190369288
2019-12-05

Method to automatically calibrate a downhole tool in an oil-based mud environment

 #93
20190369284
2019-12-05

Tunable dipole moment for formation measurements

 #94
20190353023
2019-11-21

In-situ downhole measurement correction and control

 #95
20190352560
2019-11-21

Mapping propped fractures in a well using encapsulated salt

 #96
20190346386
2019-11-14

Electron paramagnetic resonance (EPR) systems and methods for flow assurance and logging

 #97
20190301925
2019-10-03

Determining structural tomographic properties of a geologic formation

 #98
20190277997
2019-09-12

Bucking to reduce effects of conducting tubular

 #99
20190271793
2019-09-05

Multi-dimensional dielectric logging

 #100
20190271792
2019-09-05

Stacked soft magnetic inserts and slotted shield designs for titled coil antennas

 #101
20190250300
2019-08-15

Giant dielectric nanoparticles as high contrast agents for electromagnetic (EM) fluids imaging in an oil reservoir

 #102
20190249541
2019-08-15

Surface excitation ranging system for SAGD application

 #103
20190234196
2019-08-01

Apparatus and methods for making azimuthal resistivity measurements

 #104
20190218905
2019-07-18

Ranging measurements in a non-linear wellbore

 #105
20190204468
2019-07-04

Borehole imaging using amplitudes of refracted acoustic waves

 #106
20190196039
2019-06-27

Electromagnetic reservoir monitoring systems and methods including earth modeling

 #107
20190195683
2019-06-27

Determining structural tomographic properties of a geologic formation

 #108
20190195682
2019-06-27

Determining structural tomographic properties of a geologic formation

 #109
20190170570
2019-06-06

Determining structural tomographic properties of a geologic formation

 #110
20190162870
2019-05-30

Multi-spacing array tool for determining pipe thickness of a multi-pipe structure

 #111
20190160488
2019-05-30

Electrically conductive pattern printer for downhole tools

 #112
20190137646
2019-05-09

Calibration of electromagnetic measurement tool

 #113
20190137645
2019-05-09

Giant dielectric nanoparticles as high contrast agents for electromagnetic (EM) fluids imaging in an oil reservoir

 #114
20190136689
2019-05-09

Downhole fluid characterization methods and systems using multi-electrode configurations

 #115
20190128116
2019-05-02

Methods and systems employing look-around and look-ahead inversion of downhole measurements

 #116
20190113648
2019-04-18

Methods and systems for determining formation properties and pipe properties using ranging measurements

 #117
20190086350
2019-03-21

Device for determining petrophysical parameters of an underground formation

 #118
20190079210
2019-03-14

Component-based look-up table calibration for modularized resistivity tool

 #119
20190078435
2019-03-14

System and methods for evaluating a formation using pixelated solutions of formation data

 #120
20190064383
2019-02-28

Methods of selecting an earth model from a plurality of earth models

 #121
20190064382
2019-02-28

Logging tool with magnetic source and electric dipole sensor for forward and lateral imaging

 #122
20190063213
2019-02-28

Detecting a moveable device position using fiber optic sensors

 #123
20190055834
2019-02-21

IFR1 survey methodology

 #124
20190049615
2019-02-14

RF flip angle adjustment in a downhole NMR tool

 #125
20190048254
2019-02-14

Proppant having non-uniform electrically conductive coatings and methods for making and using same

 #126
20190041543
2019-02-07

Methods for producing a log of material properties

 #127
20190041542
2019-02-07

Method and apparatus of near-bit resistivity for looking-ahead

 #128
20190041541
2019-02-07

Neutrally buoyant magnetic sensor for borehole magnetometer

 #129
20190041469
2019-02-07

Low-noise fluxgate magnetometer with increased operating temperature range

 #130
20190032473
2019-01-31

System for drilling parallel wells for SAGD applications

 #131
20190011593
2019-01-10

Monitoring hydrocarbon reservoirs using induced polarization effect

 #132
20190010798
2019-01-10

Boundary tracking control module for rotary steerable systems

 #133
20180372907
2018-12-27

Using an adjusted drive pulse in formation evaluation

 #134
20180371893
2018-12-27

Modeled transmitter and receiver coils with variable title angles for formation scanning

 #135
20180364389
2018-12-20

Gyro-magnetic wellbore surveying

 #136
20180363445
2018-12-20

Gyro-magnetic wellbore surveying

 #137
20180348396
2018-12-06

Determining permeability in subsurface anisotropic formations

 #138
20180347339
2018-12-06

Systems and methods for detecting downhole tool location inside a borehole

 #139
20180340879
2018-11-29

Systems and method for down-hole phase monitoring

 #140
20180335543
2018-11-22

Methods for inverting electromagnetic logging measurements

 #141
20180335542
2018-11-22

Method for placement of surface electrodes for electromagnetic telemetry

 #142
20180329105
2018-11-15

Utilizing diverse excitation sources in electromagnetic ranging

 #143
20180328793
2018-11-15

Apparatus and method for monitoring production wells

 #144
20180328165
2018-11-15

Methods and systems employing a gradient sensor arrangement for ranging

 #145
20180321414
2018-11-08

Compensated azimuthally invariant electromagnetic logging measurements

 #146
20180321413
2018-11-08

Real and imaginary components of electromagnetic logging measurements

 #147
20180320509
2018-11-08

Systems and methods for surface detection of electromagnetic signals from subsurface environments

 #148
20180313202
2018-11-01

Well completion with single wire guidance system

 #149
20180306944
2018-10-25

Continuous Survey Using Survey Sensors

 #150
20180306025
2018-10-25

Continuous Survey Using Magnetic Sensors

 #151
20180306024
2018-10-25

System and methodology of look ahead and look around LWD tool

 #152
20180299576
2018-10-18

System and method to measure or generate an electrical field downhole

 #153
20180299575
2018-10-18

System for locating a utility with a downhole beacon

 #154
20180294791
2018-10-11

Downhole logging tool using resonant cavity antennas with real-time impedance matching

 #155
20180292572
2018-10-11

Systems and methods to calibrate individual component measurement

 #156
20180292563
2018-10-11

Methods and systems to analyze bed boundary detection

 #157
20180292561
2018-10-11

CROSSWELL TOMOGRAPHY USING AN ARRAY OF OPTICAL FIBER TRANSDUCERS

 #158
20180292559
2018-10-11

Switchable multi-antenna fluid sensing

 #159
20180292558
2018-10-11

Microstrip antenna-based logging tool and method

 #160
20180291723
2018-10-11

Direct coupling mitigation for coil-based electromagnetic ranging

 #161
20180283170
2018-10-04

DOWNHOLE LOGGING SYSTEMS AND METHODS EMPLOYING ADJUSTABLY-SPACED MODULES

 #162
20180283168
2018-10-04

Directional monitoring of injection flood fronts

 #163
20180275306
2018-09-27

Monitoring hydrocarbon reservoirs using induced polarization effect

 #164
20180267198
2018-09-20

Method for the identification of the position of a well by passive magnetic telemetry

 #165
20180259670
2018-09-13

Conductivity-depth transforms of electromagnetic telemetry signals

 #166
20180258755
2018-09-13

Directional button excitation for ranging applications

 #167
20180252838
2018-09-06

Two part magnetic field gradient sensor calibration

 #168
20180252100
2018-09-06

SUBSURFACE ELECTRIC FIELD MONITORING METHODS AND SYSTEMS EMPLOYING A CURRENT FOCUSING CEMENT ARRANGEMENT

 #169
20180246247
2018-08-30

Look-ahead of the bit resitivity tool

 #170
20180246246
2018-08-30

Multi-frequency focusing acquisition and processing in wellbore logging

 #171
20180245456
2018-08-30

DEFECT EVALUATION USING HOLOGRAPHIC IMAGING

 #172
20180239048
2018-08-23

Tunable dipole moment for formation measurements

 #173
20180230794
2018-08-16

Sleeve excitation for ranging measurements using electrode sources

 #174
20180223656
2018-08-09

Near-bit ultradeep measurement system for geosteering and formation evaluation

 #175
20180223655
2018-08-09

Inductive cavity sensors for resistivity tools

 #176
20180223654
2018-08-09

Downhole fluid characterization methods and systems using multi-electrode configurations

 #177
20180210108
2018-07-26

Systems and methods for locating and imaging proppant in an induced fracture

 #178
20180209266
2018-07-26

Measuring instruments, systems and magnetic gradiometers

 #179
20180203154
2018-07-19

Modular electrode tool for improved hydraulic fracture diagnostics

 #180
20180203152
2018-07-19

Apparatus and methods for making azimuthal resistivity measurements

 #181
20180203151
2018-07-19

Measuring petrophysical properties of an earth formation by regularized direct inversion of electromagnetic signals

 #182
20180203049
2018-07-19

Detecting Unauthorized Consumption of Electrical Energy

 #183
20180202284
2018-07-19

Detecting sliding sleeve position using electrode-type logging

 #184
20180195381
2018-07-12

Determining subterranean-formation resistivity using an electromagnetic telemetry system

 #185
20180156936
2018-06-07

Pulsed eddy current casing inspection tool

 #186
20180142549
2018-05-24

Well ranging apparatus, systems, and methods

 #187
20180136359
2018-05-17

Electromagnetic data acquisition system for removing near surface effects from borehole to surface electromagnetic data

 #188
20180136356
2018-05-17

Systems and methods for characterizing materials external of a casing

 #189
20180135405
2018-05-17

Monitoring substances in a well annulus

 #190
20180120469
2018-05-03

Devices for detecting chemicals

 #191
20180113088
2018-04-26

Method to estimate water saturation in electromagnetic measurements

 #192
20180112515
2018-04-26

Well ranging apparatus, systems, and methods

 #193
20180100389
2018-04-12

Proppant additives for hydraulic fracturing

 #194
20180088191
2018-03-29

Formation property measurement apparatus, methods, and systems

 #195
20180074220
2018-03-15

Nested tubular analysis via electromagnetic logging

 #196
20180074219
2018-03-15

Apparatus and methods for making azimuthal resistivity measurements with off-set directional antennas

 #197
20180067225
2018-03-08

Measurement and control apparatus, systems, and methods

 #198
20180066502
2018-03-08

Method and apparatus for detecting plunger arrival

 #199
20180058195
2018-03-01

Magnetic detection of drill pipe connections

 #200
20180045846
2018-02-15

Electromagnetic (EM) well logging tools and related methods

 #201
20180038984
2018-02-08

Rotating magnetic field range finder and its measurement method for relative separation between drilling wells

 #202
20180038983
2018-02-08

EARTH SURVEYING WITH AERIAL DRONES FOR IMPROVED DRILLING APPLICATIONS

 #203
20180038225
2018-02-08

Electromagnetic telemetry using a transceiver in an adjacent wellbore

 #204
20180038219
2018-02-08

Surface excitation ranging methods and systems employing a customized grounding arrangement

 #205
20180038218
2018-02-08

Reluctance sensor for measuring a magnetizable structure in a subterranean environment

 #206
20180017697
2018-01-18

Multipurpose permanent electromagnetic sensing system for monitoring wellbore fluids and formation fluids

 #207
20180017508
2018-01-18

Selective pipe inspection

 #208
20180016888
2018-01-18

Mud cake correction of formation measurement data

 #209
20180003851
2018-01-04

WIRELESS FLUIDIC READOUT PLATFORM FOR SENSORS

 #210
20180003850
2018-01-04

Downhole sensor deployment assembly

 #211
20180003032
2018-01-04

Method and device for depth positioning downhole tool and associated measurement log of a hydrocarbon well

 #212
20170371063
2017-12-28

Apparatus and methods for making azimuthal resistivity measurements

 #213
20170362931
2017-12-21

Electric dipole surface antenna configurations for electromagnetic wellbore instrument telemetry

 #214
20170342820
2017-11-30

Well ranging apparatus, systems, and methods

 #215
20170342818
2017-11-30

Downhole fluid characterization methods employing a casing with a multi-electrode configuration

 #216
20170329035
2017-11-16

Guidance system for ranging using unbalanced magnetic fields

 #217
20170322339
2017-11-09

Post-well reservoir characterization using image-constrained inversion

 #218
20170322013
2017-11-09

Magnetic ranging from behind a magnetic shield

 #219
20170315256
2017-11-02

PROBE FOR ANALYZING THE CHARACTERISTICS OF THE MEDIUM SURROUNDING AN UNSLEEVED BOREHOLE

 #220
20170315254
2017-11-02

System and method for acquiring and processing electromagnetic survey data in hydrocarbon exploration

 #221
20170306757
2017-10-26

Shield-carried noncontact frequency-domain electrical real-time advanced detection system and method

 #222
20170306741
2017-10-26

Estimation of electromagnetic tool sensitivity range

 #223
20170299666
2017-10-19

Rapid Magnetic Hotspot Detector

 #224
20170298723
2017-10-19

Hydraulic casing collar locator

 #225
20170285217
2017-10-05

Bucking to reduce effects of conducting tubular

 #226
20170284190
2017-10-05

Reservoir monitoring using galvanically excited transient electromagnetic fields

 #227
20170275985
2017-09-28

DETECTING A MOVEABLE DEVICE POSITION USING MAGNETIC-TYPE LOGGING

 #228
20170261635
2017-09-14

Method and apparatus for measurement of pipe signals for downhole transient electromagnetic processing

 #229
20170261631
2017-09-14

Frequency ratiometric processing of resistivity logging tool data

 #230
20170254915
2017-09-07

EARTH SURVEYING WITH TWO OR MORE MARINE VEHICLES FOR IMPROVED DRILLING APPLICATIONS

 #231
20170254191
2017-09-07

Well monitoring with optical electromagnetic sensing system

 #232
20170248731
2017-08-31

High sensitivity electric field sensor

 #233
20170248013
2017-08-31

Near-bit ultradeep measurement system for geosteering and formation evaluation

 #234
20170248006
2017-08-31

Method for hydraulic communication with target well from relief well

 #235
20170242145
2017-08-24

Electrical isolation to reduce magnetometer interference

 #236
20170235019
2017-08-17

Systems and methods for removal of electromagnetic dispersion and attenuation for imaging of proppant in an induced fracture

 #237
20170235011
2017-08-17

Estimating subsurface formation and invasion properties

 #238
20170227667
2017-08-10

Electromagnetic telemetry using capacitive surface electrodes

 #239
20170226411
2017-08-10

Electrically conductive proppant and methods for energizing and detecting same in a single wellbore

 #240
20170218750
2017-08-03

Downhole electromagnetic communications between two wells

 #241
20170212269
2017-07-27

Resistivity imager for conductive and non-conductive mud

 #242
20170205526
2017-07-20

Mapping and monitoring of hydraulic fractures using vector magnetometers

 #243
20170204721
2017-07-20

Systems and methods for fracture mapping via frequency-changing integrated chips

 #244
20170203325
2017-07-20

Electrically conductive pattern printer for downhole tools

 #245
20170198564
2017-07-13

Magnetometer mounting for isolation and interference reduction

 #246
20170176630
2017-06-22

DECONVOLUTION OF ELECTROMAGNETIC THICKNESS MEASUREMENT

 #247
20170176625
2017-06-22

Apparatus and method of processing multi-component induction data

 #248
20170160422
2017-06-08

Sensor system for downhole galvanic measurements

 #249
20170153353
2017-06-01

EARTH SURVEYING FOR IMPROVED DRILLING APPLICATIONS

 #250
20170146692
2017-05-25

Real-time downhole processing and detection of bed boundary

 #251
20170146681
2017-05-25

Hybrid electric and magnetic surface to borehole and borehole to surface method

 #252
20170145804
2017-05-25

System and method for mapping reservoir properties away from the wellbore

 #253
20170138174
2017-05-18

Tool face orientation system for drilling boreholes

 #254
20170138173
2017-05-18

Methods for drilling multiple parallel wells with passive magnetic ranging

 #255
20170123093
2017-05-04

Semi-rigid airborne electromagnetic transmitter antenna system

 #256
20170122096
2017-05-04

CEMENT PLUG DETECTION SYSTEM AND METHOD

 #257
20170115426
2017-04-27

Using an array of sensors between two transmitters in an eddy current logging environment

 #258
20170101865
2017-04-13

Detecting defects in non-nested tubings and casings using calibrated data and time thresholds

 #259
20170097441
2017-04-06

System and method for performing distant geophysical survey

 #260
20170090061
2017-03-30

Metamaterial-based electromagnetic field measurement device

 #261
20170082770
2017-03-23

Optical magnetic field sensor units for a downhole environment

 #262
20170075022
2017-03-16

Methods and systems for obtaining an electrical impedivity and/or resistivity image of a subterranean formation

 #263
20170074087
2017-03-16

Locating multiple wellbores

 #264
20170068015
2017-03-09

Subsurface resistivity modeling with electromagnetic fields using a conductive casing

 #265
20170067945
2017-03-09

Detecting unauthorized consumption of electrical energy

 #266
20170059738
2017-03-02

Method for mapping the propagation of earth fractures

 #267
20170051603
2017-02-23

Casing collar locator

 #268
20170044886
2017-02-16

Fracture growth monitoring using EM sensing

 #269
20170038492
2017-02-09

Workflow to use borehole completion as antenna for geophysical applications

 #270
20170023620
2017-01-26

Method for multiplexing wheatstone bridge measurements

 #271
20170009566
2017-01-12

Surface ranging technique with a surface detector

 #272
20170002648
2017-01-05

Method for measuring underground boring position and underground boring position measuring apparatus

 #273
20160379390
2016-12-29

System and method for locating underground lines using a view-in-the-ground indicator

 #274
20160333689
2016-11-17

Plastic frack tracer

 #275
20160333682
2016-11-17

Magnetic sensor rotation and orientation about drill

 #276
20160327677
2016-11-10

High gain antenna for propagation logging tools

 #277
20160312600
2016-10-27

Apparatus and method for aligning downhole measurements

 #278
20160299252
2016-10-13

Magnetic sensor correction for field generated from nearby current

 #279
20160291194
2016-10-06

Monitoring hydrocarbon reservoirs using induced polarization effect

 #280
20160291193
2016-10-06

Well detection using induced magnetic fields

 #281
20160282512
2016-09-29

Fracture detection and characterization using resistivity images

 #282
20160282504
2016-09-29

Electromagnetic imaging for structural inspection

 #283
20160274263
2016-09-22

Multi-step borehole correction scheme for multi-component induction tools

 #284
20160274262
2016-09-22

Fiber optic magnetic field sensing system based on lorentz force method for downhole applications

 #285
20160273345
2016-09-22

Method and system for magnetic ranging and geosteering

 #286
20160273344
2016-09-22

Well ranging apparatus, systems, and methods

 #287
20160273343
2016-09-22

Well ranging apparatus, systems, and methods

 #288
20160273342
2016-09-22

Well ranging apparatus, systems, and methods

 #289
20160273341
2016-09-22

Well ranging apparatus, systems, and methods

 #290
20160273340
2016-09-22

Well ranging apparatus, systems, and methods

 #291
20160273339
2016-09-22

Well ranging apparatus, systems, and methods

 #292
20160273338
2016-09-22

Well ranging apparatus, systems, and methods

 #293
20160273337
2016-09-22

Surface excitation ranging system for SAGD application

 #294
20160266269
2016-09-15

Time-Lapse Electromagnetic Monitoring

 #295
20160265335
2016-09-15

Analyzing Toolface Velocity to Detect Detrimental Vibration During Drilling

 #296
20160259082
2016-09-08

Apparatus and method of processing multi-component induction data

 #297
20160258275
2016-09-08

Well ranging apparatus, systems, and methods

 #298
20160245080
2016-08-25

Method for selecting bed boundaries and log squaring using electromagnetic measurements

 #299
20160237809
2016-08-18

Downhole Tool Non Contact Position Measurement System

 #300
20160230518
2016-08-11

Method and apparatus for detecting plunger arrival