Patents-Review.com
ClassID:

173302 ⎘

G01V1/52 - CPC Classification

Classification description:

Seismology; Seismic or acoustic prospecting or detecting specially adapted for well-logging Structural details

Sub-classes:
Recent Application in this class:
#1
20260003092
2026-01-01

LOW-NOISE ULTRASONIC TRANSDUCER FOR USE IN WELLBORE OPERATIONS

 #2
20250383466
2025-12-18

SYSTEMS AND METHODS FOR MULTI-OFFSET SEISMIC PROFILING

 #3
20250306228
2025-10-02

Novel Method For Estimating Water Saturation In Gas Reservoirs Using Acoustic Log P-Wave And S-Wave Velocities

 #4
20250298165
2025-09-25

CHARACTERIZING COUPLING QUALITY USING AMPLITUDE SPECTRA

 #5
20250264607
2025-08-21

METHODS AND SYSTEMS FOR ACOUSTIC DRIFT RUN

 #6
20250231310
2025-07-17

FREQUENCY DOMAIN STACKING OF ACOUSTIC DIPOLE LWD MEASUREMENTS

 #7
20250208311
2025-06-26

CHARACTERIZING AND MONITORING SUBSURFACE STIMULATED SERPENTINIZATION FOR GEOLOGIC HYDROGEN

 #8
20250155571
2025-05-15

APPARATUS, SYSTEM AND METHOD FOR ULTRASONIC IMAGING AND TREATMENT OF TISSUE MICROPATHOLOGY

 #9
20250052148
2025-02-13

AUTONOMOUS DOWNHOLE ROBOT TOOL STRING

 #10
20250044474
2025-02-06

Method for estimating water saturation in gas reservoirs using acoustic log P-wave and S-wave velocites

 #11
20250034984
2025-01-30

ULTRASONIC IMAGING DEVICE AND METHOD FOR WELLS

 #12
20250020824
2025-01-16

THROUGH CASING SENSOR PLACEMENT

 #13
20240369731
2024-11-07

FAST APPROACH FOR ACOUSTIC IMPEDANCE COMPUTATION THROUGH DIMENSION EXPANSION

 #14
20240295669
2024-09-05

Downhole Monitoring Using Few-Mode Optical Fiber Based Distributed Acoustic Sensing

 #15
20240118446
2024-04-11

Wedge-Cut Backing Of Acoustic Transducer For Improved Attenuation

 #16
20240027258
2024-01-25

Multi-fiber sensing topology for subsea wells

 #17
20240004098
2024-01-04

SYSTEM AND METHOD FOR BROADBAND ACOUSTIC SOURCE

 #18
20230417942
2023-12-28

Systems and methods for isolation detection using a symmetry invariant log

 #19
20230358906
2023-11-09

APPARATUS AND METHOD FOR INSTALLING SENSOR DEVICE TO ACHIEVE A KNOWN MAGNETIC ORIENTATION

 #20
20230340873
2023-10-26

Near field ultrasonic logging

 #21
20230333275
2023-10-19

Circular Downhole Ultrasonic Phased Array

 #22
20230332499
2023-10-19

Topside Interrogation For Distributed Acoustic Sensing Of Subsea Wells

 #23
20230296802
2023-09-21

Cross-component response interpolation for coaxially oriented antennas in an electromagnetic tool

 #24
20230250720
2023-08-10

Wireless integrated data recorder

 #25
20230236335
2023-07-27

OPTIMIZING WELL SEQUENCES IN A WELL DEVELOPMENT ZONE

 #26
20230213677
2023-07-06

Through tubing cement evaluation based on rotatable transmitter and computational rotated responses

 #27
20230213675
2023-07-06

Model-based corrections to acoustic property values of annular material to mitigate ideal artifacts

 #28
20230194373
2023-06-22

Sensor module, sensor assembly and acoustic logging tool

 #29
20230167739
2023-06-01

METHOD AND SYSTEM FOR REAL-TIME PREDICTION OF JAMMING IN TBM TUNNELING

 #30
20230101018
2023-03-30

Communication and location system for an autonomous frack system

 #31
20230073079
2023-03-09

MODULAR CONTROL UNIT AND SYSTEMS COMPRISING THE SAME

 #32
20230072270
2023-03-09

Wireline optical fiber sensing

 #33
20230054654
2023-02-23

FRACTURE DETECTION USING DISTRIBUTED OPTICAL FIBER SENSING

 #34
20230020763
2023-01-19

Wireless integrated data recorder

 #35
20220397692
2022-12-15

Detection system for detecting discontinuity interfaces and/or anomalies in pore pressures in geological formations

 #36
20220395860
2022-12-15

Air layer for improved performance of transducer at low frequencies

 #37
20220276403
2022-09-01

Downhole ultrasound image correction in oil based mud

 #38
20220268959
2022-08-25

Method and apparatus for geophysical formation evaluation measurements behind casing

 #39
20220236106
2022-07-28

Topside distributed acoustic sensing interrogation of subsea wells with a single optical waveguide

 #40
20220235651
2022-07-28

DEVICES AND METHODS FOR IMAGING WELLS USING PHASED ARRAY ULTRASOUND

 #41
20220214468
2022-07-07

Retrievable fiber optic vertical seismic profiling data acquisition system with integrated logging tool for geophone-equivalent depth accuracy

 #42
20220179118
2022-06-09

Enhanced-resolution sonic data processing for formation body wave slowness with full offset waveform data

 #43
20220179113
2022-06-09

Das system for pre-drill hazard assessment and seismic recording while drilling

 #44
20220163689
2022-05-26

Shear head device

 #45
20220155476
2022-05-19

Elastomer sensor clamping

 #46
20220146702
2022-05-12

Automatic recognition of environmental parameters with azimuthally distributed transducers

 #47
20220106870
2022-04-07

Wellhead growth monitoring system

 #48
20220082726
2022-03-17

SYSTEM AND METHOD OF CALIBRATING DOWNHOLE FIBER-OPTIC WELL MEASUREMENTS

 #49
20220082720
2022-03-17

Gauge length effect and gauge length conversion

 #50
20220049601
2022-02-17

Instrumented bridge plugs for downhole measurements

 #51
20220003111
2022-01-06

Methods and apparatus for downhole geometry reconstruction and feature detection and classification

 #52
20210404321
2021-12-30

Acoustic sensor systems and methods

 #53
20210404320
2021-12-30

Ultrasonic echo locating in a wellbore using time gain compensation

 #54
20210372276
2021-12-02

FIBER OPTIC TELEMETRY SYSTEM

 #55
20210311224
2021-10-07

Circular downhole ultrasonic phased array

 #56
20210310480
2021-10-07

Plunger lift state estimation and optimization using acoustic data

 #57
20210286096
2021-09-16

Solid-state hydrophone with shielding

 #58
20210285323
2021-09-16

HYDRAULIC FRACTURE PROXIMITY DETECTION USING STRAIN MEASUREMENTS

 #59
20210270667
2021-09-02

Topside distributed acoustic sensing interrogation of subsea wells with a single optical waveguide

 #60
20210270131
2021-09-02

Topside interrogation for distributed acoustic sensing of subsea wells

 #61
20210238978
2021-08-05

Using active actuation for downhole fluid identification and cement barrier quality assessment

 #62
20210180439
2021-06-17

DYNAMIC WELL CONSTRUCTION MODEL

 #63
20210173980
2021-06-10

METHOD OF MODELLING A SEDIMENTARY BASIN USING A HEX-DOMINANT MESH REPRESENTATION

 #64
20210149070
2021-05-20

System and method for application of elastic property constraints to petro-elastic subsurface reservoir modeling

 #65
20210131276
2021-05-06

System and Method to Obtain Vertical Seismic Profiles in Boreholes Using Distributed Acoustic Sensing on Optical Fiber Deployed Using Coiled Tubing

 #66
20210109245
2021-04-15

DOWNHOLE IMAGING SYSTEMS, DOWNHOLE ASSEMBLIES, AND RELATED METHODS

 #67
20210109244
2021-04-15

Downhole acoustic device

 #68
20210109243
2021-04-15

Leak induced guided wave amplitude log for downhole leakage localization

 #69
20210079744
2021-03-18

PASSIVE CLAMP ARMS, RELATED SENSING SYSTEMS AND SENSOR ARRAYS, AND METHODS OF OPERATING THE SAME

 #70
20210075110
2021-03-11

Co-located antennas

 #71
20210071509
2021-03-11

DEEP INTELLIGENCE FOR ELECTRIC SUBMERSIBLE PUMPING SYSTEMS

 #72
20210062645
2021-03-04

Anisotropy model guided fracture properties extraction from VSP data

 #73
20210018654
2021-01-21

Calculating shut-in bottom-hole pressure in numerical reservoir simulations

 #74
20210003732
2021-01-07

Quadruple transmitter and methods to determine wave velocities of a downhole formation

 #75
20210003001
2021-01-07

Devices and methods for imaging wells using phased array ultrasound

 #76
20200408051
2020-12-31

Drilling tool with thread profile

 #77
20200386096
2020-12-10

Wireless integrated data recorder

 #78
20200363550
2020-11-19

Ultrasonic transducers for measuring formation velocities

 #79
20200362692
2020-11-19

Topside interrogation for distributed acoustic sensing of subsea wells

 #80
20200341159
2020-10-29

Joint sensor orientation and velocity model calibration

 #81
20200319358
2020-10-08

DRA DAS system

 #82
20200300053
2020-09-24

Operational system for launching, managing and controlling a robot autonomous unit (RAU) for operations in oil and gas wells and method of well logging

 #83
20200292727
2020-09-17

Downhole monitoring using few-mode optical fiber based distributed acoustic sensing

 #84
20200284935
2020-09-10

Simultaneous seismic refraction and tomography

 #85
20200284934
2020-09-10

Sensing-acquisition-wireless transmission integrated microseismic monitoring system and method

 #86
20200278326
2020-09-03

Acoustic receivers with cylindrical crystals

 #87
20200271812
2020-08-27

Ultrasonic beam focus adjustment for single-transducer ultrasonic assembly tools

 #88
20200271811
2020-08-27

Real-time processing and control of DAS VSP surveys

 #89
20200241160
2020-07-30

B annulus acoustic pressure sensing

 #90
20200208511
2020-07-02

Constant amplitude adjusting method and system for pressure pulse of drilling tool

 #91
20200200004
2020-06-25

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

 #92
20200190973
2020-06-18

Hybrid sensing apparatus and method

 #93
20200116884
2020-04-16

Downhole ultrasound image correction in oil based mud

 #94
20200116023
2020-04-16

Device and method for measuring dynamic evolution of three-dimensional disturbed stress under mining disturbance

 #95
20200080270
2020-03-12

Soil probing device having built-in generators and detectors for compressional waves and shear waves

 #96
20200072995
2020-03-05

Wireline Optical Fiber Sensing

 #97
20200072994
2020-03-05

Borehole seismic sensor array and associated methods

 #98
20200049847
2020-02-13

Multi-Z horizon visualization from seismic data

 #99
20200018150
2020-01-16

Acoustic corpuscular velocity in wellbore evaluation

 #100
20200003924
2020-01-02

Ultrasonic transducer with suppressed lateral mode

 #101
20190331819
2019-10-31

Gauge length effect and gauge length conversion

 #102
20190294023
2019-09-26

Directional sensitive fiber optic cable wellbore system

 #103
20190294022
2019-09-26

Directional sensitive fiber optic cable wellbore system

 #104
20190277994
2019-09-12

Method and transducer for acoustic logging

 #105
20190257973
2019-08-22

3-DIMENSIONAL SCANNER FOR DOWNHOLE WELL INTEGRITY RECONSTRUCTION IN THE HYDROCARBON INDUSTRY

 #106
20190257971
2019-08-22

Real-time determination of mud slowness, formation type, and monopole slowness picks in downhole applications

 #107
20190257970
2019-08-22

Monopole acoustic logging while drilling instrument used together with bottom hole assembly, method for measuring shear wave velocity of slow formations

 #108
20190234198
2019-08-01

Tiltmeter for EAT applications

 #109
20190227184
2019-07-25

GAUGE LENGTH OPTIMIZATION FOR SIGNAL PRESERVATION AND GAUGE LENGTH PROCESSING FOR DISTRIBUTED VIBRATION SENSING

 #110
20190226319
2019-07-25

Tool, system and a method for determining barrier and material quality behind multiple tubulars in a hydrocarbon wellbore

 #111
20190219724
2019-07-18

Wellbore Integrity Mapping Using Well-Casing Electrodes and Surface-Based Electromagnetic Fields

 #112
20190219718
2019-07-18

Dipole Shear Velocity Estimation

 #113
20190212628
2019-07-11

Directional sensitive fiber optic cable wellbore system

 #114
20190211672
2019-07-11

Multi-directional ultrasonic transducer for downhole measurements

 #115
20190203585
2019-07-04

Wellbore sand detection using passive acoustic array

 #116
20190203576
2019-07-04

EXTENDABLE/COLLAPSIBLE APPARATUS FOR FRACTURE IMAGING AND USE OF SAME

 #117
20190196039
2019-06-27

Electromagnetic reservoir monitoring systems and methods including earth modeling

 #118
20190187317
2019-06-20

OFFSHORE RESERVOIR MONITORING SYSTEM AND METHOD FOR ITS OPERATION

 #119
20190169975
2019-06-06

Ring assembly for measurement while drilling, logging while drilling and well intervention

 #120
20190162868
2019-05-30

Multi-scale deep network for fault detection

 #121
20190129052
2019-05-02

Method for acquiring data of azimuthal acoustic logging while drilling

 #122
20190112918
2019-04-18

Vertical Seismic Profiling

 #123
20190101663
2019-04-04

Acoustic Imaging For Wellbore Investigation

 #124
20190085684
2019-03-21

METHOD, DEVICE AND TERMINAL FOR DETERMINING BOREHOLE CROSS-SECTIONAL SHAPE

 #125
20190064388
2019-02-28

Integrated logging tool

 #126
20190011404
2019-01-10

Acoustic receivers with cylindrical crystals

 #127
20190003303
2019-01-03

Downhole local solid particles counting probe, production logging tool comprising the same and sand entry investigation method for hydrocarbon wells

 #128
20180372689
2018-12-27

Acoustic emission monitoring and transmission system for engineering rock mass

 #129
20180348386
2018-12-06

Diagnostic device for a seismic probe and associated method

 #130
20180347349
2018-12-06

Acoustic coupler for downhole logging while drilling applications

 #131
20180341036
2018-11-29

Systems and method for formation evaluation from borehole

 #132
20180313201
2018-11-01

Logging with selective solidification of annular material

 #133
20180292561
2018-10-11

CROSSWELL TOMOGRAPHY USING AN ARRAY OF OPTICAL FIBER TRANSDUCERS

 #134
20180291726
2018-10-11

Using electro acoustic technology to determine annulus pressure

 #135
20180284308
2018-10-04

Azimuthal determination of subterranean acoustic reflectors

 #136
20180284248
2018-10-04

Fluid pressure waveform generator and methods of use

 #137
20180275305
2018-09-27

Acoustic transducer

 #138
20180274953
2018-09-27

OPTICAL SENSOR FOR DETECTING A PARAMETER OF INTEREST

 #139
20180266243
2018-09-20

Devices and methods for imaging wells using phased array ultrasound

 #140
20180245448
2018-08-30

Degradable isolation devices with data recorders

 #141
20180238732
2018-08-23

Distributed acoustic sensing systems and methods employing multiple pulse widths

 #142
20180216452
2018-08-02

Passive ranging using acoustic energy originating from a target wellbore

 #143
20180202287
2018-07-19

SINUSOIDAL EXCITATION METHOD AND APPARATUS FOR MULTI-POLE ACOUSTIC LOGGING WHILE DRILLING

 #144
20180196157
2018-07-12

Measurement and processing to detect weak interfacial layers in hydrocarbon-bearing laminated formations with acoustic logging devices

 #145
20180187542
2018-07-05

Borehole trajectory via multi-component borehole seismic receiver

 #146
20180156025
2018-06-07

Ultrasonic imaging device and method for wells

 #147
20180149013
2018-05-31

Pressure balanced transducer assembly and measurement tool

 #148
20180143340
2018-05-24

System and method for deep detection of petroleum and hydrocarbon deposits

 #149
20180143041
2018-05-24

Distributed parameter measurements using multiple optical sources

 #150
20180136354
2018-05-17

Sensor device and method for borehole seismic applications

 #151
20180119692
2018-05-03

Plunger lift state estimation and optimization using acoustic data

 #152
20180106922
2018-04-19

Wellsite sensor assembly and method of using same

 #153
20180100387
2018-04-12

Downhole electromagnetic acoustic transducer sensors

 #154
20180066490
2018-03-08

METHOD AND SYSTEM FOR TRANSMITTING SIGNALS FROM A DISTRIBUTED ACOUSTIC SENSOR THROUGH A ONE PIN SOLUTION OF A SUBSEA WELLHEAD

 #155
20180058191
2018-03-01

Plunger lift monitoring via a downhole wireless network field

 #156
20180052131
2018-02-22

Wellsite sensor assembly and method of using same

 #157
20180045844
2018-02-15

Multi-mode acoustic tool and method

 #158
20180038972
2018-02-08

Vibratory source for non-vertical boreholes and method

 #159
20180031734
2018-02-01

SYSTEM AND METHOD OF CALIBRATING DOWNHOLE FIBER-OPTIC WELL MEASUREMENTS

 #160
20180031413
2018-02-01

FIBER OPTIC DISTRIBUTED ACOUSTIC SENSOR OMNIDIRECTIONAL ANTENNA FOR USE IN DOWNHOLE AND MARINE APPLICATIONS

 #161
20180011211
2018-01-11

Ultrasonic beam focus adjustment for single-transducer ultrasonic assembly tools

 #162
20180010443
2018-01-11

Acoustic downhole leak classification and quantification

 #163
20180010407
2018-01-11

Downhole activation of seismic tools

 #164
20180003843
2018-01-04

Downhole acoustic mapping

 #165
20180003833
2018-01-04

Vibration detection device and method

 #166
20170362930
2017-12-21

Compact single conductor transmission line transducer for telemetry in borehole drilling

 #167
20170356286
2017-12-14

Leak detection via doppler shift differences in moving hydrophones

 #168
20170350242
2017-12-07

Adjustable acoustic transducers for a downhole tool

 #169
20170343433
2017-11-30

Optic fibres and fibre optic sensing

 #170
20170335685
2017-11-23

Encapsulated phased array segment for downhole applications

 #171
20170335678
2017-11-23

SMART FRAC PLUG

 #172
20170335674
2017-11-23

Detector Configuration For Well-Logging Tool

 #173
20170307777
2017-10-26

Downhole tool measurement device mounting system and method

 #174
20170299752
2017-10-19

Bipolar acoustic hyperlens for dual-string thru-casing ultrasonic sensors

 #175
20170299751
2017-10-19

Ultrasonic transducer with improved backing element

 #176
20170293044
2017-10-12

MEMS-based transducers on a downhole tool

 #177
20170292364
2017-10-12

Pulse generation for downhole logging

 #178
20170285205
2017-10-05

Acoustic logging tool utilizing fundamental resonance

 #179
20170284193
2017-10-05

Collection And Display Of Acoustic Data For Integrated Quality Control

 #180
20170276819
2017-09-28

Acoustic logging tool utilizing fundamental resonance

 #181
20170276815
2017-09-28

MICROSEISMIC MONITORING WITH FIBER-OPTIC NOISE MAPPING

 #182
20170268324
2017-09-21

Downhole state-machine-based monitoring of vibration

 #183
20170260848
2017-09-14

Wellbore monitoring system using strain sensitive optical fiber cable package

 #184
20170260847
2017-09-14

Strain sensitive optical fiber cable package for downhole distributed acoustic sensing

 #185
20170256375
2017-09-07

Pressure responsive switch for actuating a device

 #186
20170212263
2017-07-27

Televiewer image wood-grain reduction techniques

 #187
20170198570
2017-07-13

Fluid pressure pulse generator for a downhole telemetry tool

 #188
20170168186
2017-06-15

High-performance dipole acoustic transmitter

 #189
20170154714
2017-06-01

Magnetic casing clamping system

 #190
20170145804
2017-05-25

System and method for mapping reservoir properties away from the wellbore

 #191
20170139072
2017-05-18

Cement evaluation using the integration of multiple modes of acoustic measurements

 #192
20170138178
2017-05-18

Moving system

 #193
20170114627
2017-04-27

Methods for evaluating cement bonding

 #194
20170107809
2017-04-20

Circumferential array borehole evaluation tool

 #195
20170102481
2017-04-13

Downhole tool measurement device mounting system and method

 #196
20170075029
2017-03-16

Method and system for calibrating a distributed vibration sensing system

 #197
20170075017
2017-03-16

Seismic monitoring below source tool

 #198
20170075016
2017-03-16

Methods and systems for monitoring a subsurface formation with a land active streamer

 #199
20170038545
2017-02-09

Vented optical tube

 #200
20170038246
2017-02-09

Detection of seismic signals using fiber optic distributed sensors

 #201
20170010387
2017-01-12

Acousto-electromagnetic apparatus and method for acoustic sensing

 #202
20160370486
2016-12-22

Method and system for transmitting signals on a multi-conductor cable

 #203
20160369573
2016-12-22

Method of incorporating remote communication with oilfield tubular handling apparatus

 #204
20160356145
2016-12-08

Extendable/collapsible apparatus for fracture imaging and use of same

 #205
20160326868
2016-11-10

Acoustic dipole piston transmitter

 #206
20160320513
2016-11-03

Downhole inertial mass system

 #207
20160320232
2016-11-03

Systems and methods for multiple-code continuous-wave distributed acoustic sensing

 #208
20160299246
2016-10-13

Controlled-frequency downhole seismic source

 #209
20160290133
2016-10-06

Downhole sensor for formation fluid property measurement

 #210
20160282488
2016-09-29

Borehole seismic source and method

 #211
20160252637
2016-09-01

Apparatus and techniques for acoustic logging tool modeling

 #212
20160238720
2016-08-18

Tunable acoustic transmitter for downhole use

 #213
20160222780
2016-08-04

Acoustic signal attenuator for LWD/MWD logging systems

 #214
20160209536
2016-07-21

Active damping control of a wellbore logging tool

 #215
20160209503
2016-07-21

Optimal vibration control for a wellbore logging tool

 #216
20160146661
2016-05-26

Fiber optic distributed vibration sensing with wavenumber sensitivity correction

 #217
20160131520
2016-05-12

Fiber optic distributed vibration sensing with directional sensitivity

 #218
20160123132
2016-05-05

High frequency inspection of downhole environment

 #219
20160116621
2016-04-28

System and method of detecting well integrity failure

 #220
20160109607
2016-04-21

Formation collapse sensor and related methods

 #221
20160108730
2016-04-21

Three-phase flow identification and rate detection

 #222
20160108689
2016-04-21

Anchoring mechanism and method for down-hole tool

 #223
20160084979
2016-03-24

Distributed seismic source array

 #224
20160070016
2016-03-10

DOWNHOLE SENSOR, ULTRASONIC LEVEL SENSING ASSEMBLY, AND METHOD

 #225
20160047227
2016-02-18

Device for High-Temperature Applications

 #226
20160033665
2016-02-04

Seismic detector

 #227
20160033664
2016-02-04

Determining cement impedance from a formation boundary

 #228
20160033663
2016-02-04

Control of acoustic transmitters for downhole measurement or logging

 #229
20160018561
2016-01-21

Methods and systems for an integrated acoustic and induction logging tool

 #230
20150361742
2015-12-17

Kick detection systems and methods

 #231
20150337647
2015-11-26

Determining seismic sensor orientation in a wellbore

 #232
20150293252
2015-10-15

Wireless logging of fluid filled boreholes

 #233
20150285937
2015-10-08

Apparatus and method for detecting fracture geometry using acoustic telemetry

 #234
20150198733
2015-07-16

TRANSDUCER ASSEMBLY

 #235
20150143888
2015-05-28

Wide bandwidth borehole dipole source for acoustic logging

 #236
20150135819
2015-05-21

Microseismic monitoring with fiber-optic noise mapping

 #237
20150112596
2015-04-23

Estimation of fast shear azimuth, methods and apparatus

 #238
20150014521
2015-01-15

Reducing disturbance during fiber optic sensing

 #239
20150000904
2015-01-01

Downhole sensor flap and method of using same

 #240
20140328139
2014-11-06

Seismic device with sealed housing and related methods

 #241
20140301164
2014-10-09

Acoustic transducer apparatus, systems, and methods

 #242
20140283592
2014-09-25

METHOD FOR DETERMINING THE ACOUSTIC CHARACTERISTICS OF A MUD FILTER CAKE

 #243
20140269184
2014-09-18

LAND HYDROPHONE AND METHOD

 #244
20140251679
2014-09-11

Feedthrough assembly for electrically conductive winding

 #245
20140182837
2014-07-03

Performance of permanently installed tubing conveyed seismic arrays using passive acoustic absorbers

 #246
20140177391
2014-06-26

Acoustic isolators

 #247
20140111207
2014-04-24

System and method for deep detection of petroleum and hydrocarbon deposits

 #248
20130328442
2013-12-12

Magnetostrictive power supply for bottom hole assembly with rotation-resistant housing

 #249
20130250722
2013-09-26

Seismic methods and systems employing flank arrays in well tubing

 #250
20130099791
2013-04-25

Methodologies to Improve Reliability of Transducer Electrical Interconnections

 #251
20130064039
2013-03-14

Acoustic logging while drilling tool with active control of source orientation

 #252
20130010439
2013-01-10

Enclosures for containing transducers and electronics on a downhole tool

 #253
20120227500
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Integrated system for investigating sub-surface features of a rock formation

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Detecting Seismic Data in a Wellbore

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Surface instrumentation configuration for drilling rig operation

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Seismic source which incorporates earth coupling as part of the transmitter resonance

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Wellbore instrument module having magnetic clamp for use in cased wellbores

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Surface instrumentation configuration for drilling rig operation

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Transducer assemblies for subsurface use

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Retractable sensor system and technique

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Acoustic transmitter comprising a plurality of piezoelectric plates

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Stacked receivers for microseismic monitoring

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Method and apparatus for long term seismic monitoring

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Bandwidth Wireline Data Transmission System and Method