ClassID:

135726

E21B49/008 - 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 by injection test; by analysing pressure variations in an injection or production test, e.g. for estimating the skin factor

Recent Application in this class:
#1
20260086267
2026-03-26

COMPUTER-IMPLEMENTED METHOD FOR UNDERGROUND OR SUBSURFACE RESERVOIR SIMULATION DURING AN INJECTION OF A FLUID AND RELATED NON-TRANSITORY COMPUTER READABLE MEDIUM

#2
20260078672
2026-03-19

PRESSURE TEST PLUG

#3
20260055699
2026-02-26

SHALE GAS WELL TYPE CLASSIFICATION METHOD

#4
20260002435
2026-01-01

DUMMY WELL SET-UP FOR TESTING LOGGING TOOLS

#5
20250389181
2025-12-25

DYNAMIC INFILL PRODUCER WELL PLACEMENT

#6
20250389176
2025-12-25

HYDRAULIC FRACTURING WITH DYNAMIC LOADING

#7
20250382878
2025-12-18

STACKED DYNAMIC STEADY-STATE FLOW AND CHEMISTRY PROFILING FOR LONG-SCREENED TEST WELLS USED IN MUD ROTARY PILOT HOLES

#8
20250382877
2025-12-18

SYSTEMS AND METHODS FOR PRODUCTIVITY ANALYSIS OF OIL AND GAS PRODUCTION SYSTEMS

#9
20250382764
2025-12-18

INFILTRATION POINT DETECTION

#10
20250354487
2025-11-20

Estimating Reservoir Properties from Falloff Tests Conducted with Thermally-Sensitive Injection Fluids

#11
20250320814
2025-10-16

CARBON DIOXIDE INJECTION RATES IN SALINE AQUIFER ESTIMATION

#12
20250314803
2025-10-09

METHOD FOR CONDUCTING A CARBON DIOXIDE INJECTIVITY TEST

#13
20250305367
2025-10-02

SYSTEMS AND METHODS FOR CONFORMANCE CONTROL OF A WELLBORE

#14
20250297540
2025-09-25

STAGE PROFILES FOR OPERATIONS OF HYDRAULIC SYSTEMS AND ASSOCIATED METHODS

#15
20250243744
2025-07-31

AUTOMATED WORKFLOWS USING TRANSIENT, MULTIPHASE ANALYSIS TO IMPROVE WELL CONTROL PLANNING FOR MANAGED PRESSURE DRILLING OPERATIONS

#16
20250237131
2025-07-24

SYSTEMS AND METHODS FOR PREDICTING HYDRAULIC FRACTURING DESIGN PARMATERS BASED ON INJECTION TEST DATA AND MACHINE LEARNING

#17
20250215792
2025-07-03

METHODS TO ASSESS RISK OF GAS BREAKOUT IN A WELL AND GAS BREAKOUT RISK ASSESSMENT SYSTEMS

#18
20250204635
2025-06-26

ARTICLES INCLUDING COATED FIBERS AND METHODS OF MAKING COATED FIBERS AND ARTICLES

#19
20250185753
2025-06-12

ARTICLES AND METHODS OF MAKING ARTICLES INCLUDING A COATING

#20
20250129718
2025-04-24

METHOD FOR DETERMINING RESIDUAL OIL SATURATION BY MISCIBLE GAS INJECTION (SORM)

#21
20250129717
2025-04-24

QUANTITATIVE PREDICTION METHOD FOR GAS CONTENT OF DEEP MARINE SHALE

#22
20250129716
2025-04-24

COMPREHENSIVE WORKFLOW TO MODEL NATURALLY FRACTURED RESERVOIRS

#23
20250122796
2025-04-17

METHOD FOR DEEP WELL TESTING AND PERMEABILITY DETERMINATION IN DIFFERENT DIRECTIONS

#24
20250122789
2025-04-17

Stimulating Hydrocarbon Production in a Subsurface Reservoir

#25
20250116586
2025-04-10

DEVICE AND METHOD FOR TESTING GAS LOSS AMOUNT WHICH SIMULATES WIRELINE CORING PROCESS

#26
20250084762
2025-03-13

WORKFLOW FOR PORE PRESSURE AND PERMEABILITY ESTIMATION IN UNCONVENTIONAL FORMATIONS

#27
20250075619
2025-03-06

Method of Controlling Tensile-Splitting and Hydro-Shearing Parameters During Completion of Enhanced Geothermal System Wells

#28
20250075616
2025-03-06

NOISE CHARACTERIZATION IN FORMATION TESTING

#29
20250059869
2025-02-20

Methods for Conducting a Pressure Test to Minimize Over Pressurization for a Fluid Distribution System

#30
20250059847
2025-02-20

PROCESSES FOR INJECTION OF FLUIDS INTO A WELLBORE VIA DRILL PIPE

#31
20250052150
2025-02-13

AUTOMATED INITIAL SHUT-IN PRESSURE ESTIMATION

#32
20250034995
2025-01-30

Whole-process multi-parameter monitoring device and method for simulating COgeological sequestration and use thereof

#33
20240426212
2024-12-26

WATERFLOOD MANAGEMENT OF PRODUCTION WELLS

#34
20240328293
2024-10-03

Well Completion for Unconventional Subsurface Reservoirs

#35
20240287899
2024-08-29

HYDRAULIC INTEGRITY ANALYSIS

#36
20240263066
2024-08-08

SMART NANOFLUIDS FOR GEOTHERMAL APPLICATIONS AND METHODS OF USE

#37
20240254869
2024-08-01

Methods of Treating a Wellbore for Enhancing Productivity of a Subterranean Reservoir

#38
20240248226
2024-07-25

MEASUREMENT OF POROELASTIC PRESSURE RESPONSE

#39
20240247184
2024-07-25

PARTICLES FOR CARRIERS AND TRACERS

#40
20240240557
2024-07-18

Device and method for simulating gas intrusion and bullheading in wellbore under different inclinations

#41
20240229605
2024-07-11

METHOD FOR APPLYING THE SCALE INHIBITOR TO COMPLETION FLUIDS DURING INJECTIVITY TEST OPERATIONS

#42
20240218776
2024-07-04

QUANTIFICATION OF PRESSURE INTERFERENCE AMONG WELLS

#43
20240191622
2024-06-13

IN-SITU SWEEP TESTING SYSTEM AND METHOD FOR CONDUCTING IN-SITU OIL RECOVERY SWEEP TESTING

#44
20240183270
2024-06-06

GEL PARTICLE-CONTAINING DISCONTINUOUS PHASE SEEPAGE EXPERIMENTAL APPARATUS AND CRITICAL PRESSURE DETERMINATION METHOD

#45
20240133268
2024-04-25

Method for applying the scale inhibitor to completion fluids during injectivity test operations

#46
20240110475
2024-04-04

Automated inflow negative test process

#47
20240093598
2024-03-21

Mapping inter-well porosity using tracers with different transport properties

#48
20240068361
2024-02-29

DIAMONDOIDS FOR MONITORING & SURVEILLANCE

#49
20240061140
2024-02-22

DETERMINATION OF GEOLOGIC PERMEABILITY CORRELATIVE WITH MAGNETIC PERMEABILITY MEASURED IN-SITU

#50
20240060417
2024-02-22

OIL FIELD TRACER, METHOD FOR OIL FIELD TRACING, AND PROPPANT COMPOSITION

#51
20240035362
2024-02-01

CLOSED LOOP MONITORING AND CONTROL OF A CHEMICAL INJECTION SYSTEM

#52
20240026766
2024-01-25

Real-time fracture volume measurements and predictions

#53
20240018867
2024-01-18

Method and system for estimating a depth pressure and/or permeability profile of a geological formation having a well

#54
20230399940
2023-12-14

FORMATION FRACTURE CHARACTERIZATION FROM POST SHUT-IN ACOUSTICS AND PRESSURE DECAY USING A 3 SEGMENT MODEL

#55
20230399932
2023-12-14

Workflow to evaluate the time-dependent proppant embedment induced by fracturing fluid penetration

#56
20230313674
2023-10-05

Pressure measurement mitigation

#57
20230296017
2023-09-21

Systems and methods for analyzing subsurface formations

#58
20230284738
2023-09-14

Articles and methods of making articles including a coating

#59
20230279774
2023-09-07

Method for real-time interpretation of pressure transient test

#60
20230276898
2023-09-07

Articles including coated fibers and methods of making coated fibers and articles

#61
20230272711
2023-08-31

OPTIMIZING HYDROCARBON RECOVERY THROUGH INTEGRATED UTILIZATION OF GEOMECHANICS AND INJECTION/PRODUCTION USING MACHINE LEARNING

#62
20230235666
2023-07-27

Formation testing and sampling tool for stimulation of tight and ultra-tight formations

#63
20230228188
2023-07-20

System for automated real-time water injection well testing

#64
20230220753
2023-07-13

Apparatus for TCA bleed off and well start-up

#65
20230214554
2023-07-06

METHODS AND SYSTEMS FOR RESERVOIR SIMULATION

#66
20230203945
2023-06-29

Drill stem testing

#67
20230109552
2023-04-06

STACKED DYNAMIC STEADY-STATE FLOW AND CHEMISTRY PROFILING FOR LONG-SCREENED TEST WELLS USED IN MUD ROTARY PILOT HOLES

#68
20230092199
2023-03-23

Stage profiles for operations of hydraulic systems and associated methods

#69
20230083391
2023-03-16

Hydraulic pressure testing system, and method of testing tubular products

#70
20230067788
2023-03-02

Surface Tracking Method for Downhole Wellbore Position and Trajectory Determination

#71
20230065802
2023-03-02

Particles for carriers and tracers

#72
20230058915
2023-02-23

UBIQUITOUS REAL-TIME FRACTURE MONITORING

#73
20230003121
2023-01-05

Articles including coated fibers and methods of making coated fibers and articles

#74
20220389814
2022-12-08

High flowrate formation tester

#75
20220349298
2022-11-03

Systems and methods for sand ingress prediction for subterranean wellbores

#76
20220341317
2022-10-27

System and method for identifying productive health of wells while ensuring safe operating conditions

#77
20220307371
2022-09-29

Automated initial shut-in pressure estimation

#78
20220298914
2022-09-22

Pressure measurement mitigation

#79
20220298913
2022-09-22

Pressure measurement mitigation

#80
20220291419
2022-09-15

METHODS AND SYSTEMS FOR MONITORING WELLBORE INTEGRITY THROUGHOUT A WELLBORE LIFECYCLE USING MODELING TECHNIQUES

#81
20220290559
2022-09-15

System and method for preventing wellbore interactions

#82
20220282614
2022-09-08

Diamondoids for monitoring and surveillance

#83
20220282611
2022-09-08

METHOD FOR FRACTURING ACTIVITY AND INTENSITY MONITORING AND PRESSURE WAVE RESONANCE ANALYSIS

#84
20220243588
2022-08-04

Reverse drill stem testing

#85
20220228484
2022-07-21

Hydraulic integrity analysis

#86
20220228483
2022-07-21

SYSTEMS AND METHODS FOR UPDATING RESERVOIR STATIC MODELS

#87
20220220847
2022-07-14

Device to evaluate hydraulic fracturing diversion material behavior and performance

#88
20220214261
2022-07-07

Analyzing fractured rock samples

#89
20220127940
2022-04-28

SYSTEMS AND METHODS FOR HYDRAULIC FRACTURE AND RESERVOIR SIMULATION

#90
20220120173
2022-04-21

Methods and systems for determining reservoir and fracture properties

#91
20220112795
2022-04-14

Stage profiles for operations of hydraulic systems and associated methods

#92
20220107434
2022-04-07

Measurement of poroelastic pressure response

#93
20220098979
2022-03-31

3D RESERVOIR MODELLING BASED ON DYNAMIC PRODUCTION LOGGING TECHNOLOGIES

#94
20220098963
2022-03-31

Real time parent child well interference control

#95
20220065107
2022-03-03

Plasma chemistry based analysis and operations for pulse power drilling

#96
20220056798
2022-02-24

Determining matrix permeability of subsurface formations

#97
20220049604
2022-02-17

Shale gas well dynamic production allocating method

#98
20220043468
2022-02-10

Evaluating enhanced oil recovery methods

#99
20220025765
2022-01-27

Waterflood management of production wells

#100
20220018249
2022-01-20

High flowrate formation tester

#101
20220010655
2022-01-13

OPTIMIZING WASTE SLURRY DISPOSAL IN FRACTURED INJECTION OPERATIONS

#102
20210404332
2021-12-30

Formation testing and sampling tool for stimulation of tight and ultra-tight formations

#103
20210396115
2021-12-23

Stage profiles for operations of hydraulic systems and associated methods

#104
20210396083
2021-12-23

Method for perforation clusters stimulation efficiency determination

#105
20210388718
2021-12-16

METHODS OF DETERMINING BOREHOLE CHARACTERISTICS

#106
20210363883
2021-11-25

Methods to perform an in-situ determination of a formation property of a downhole formation and in-situ formation property measurement tools

#107
20210363882
2021-11-25

Methods and systems for determining optimum pressure drawdown in a production well for a shale gas reservoir

#108
20210348492
2021-11-11

Systems and methods for generating a drainage radius log

#109
20210340839
2021-11-04

Plugs and related methods of performing completion operations in oil and gas applications

#110
20210310352
2021-10-07

Formation test probe

#111
20210310344
2021-10-07

Removal of water blockage in tight gas reservoir using thermochemical fluids

#112
20210301657
2021-09-30

Generating tube waves within a wellbore using an electrohydraulic discharge source

#113
20210293106
2021-09-23

Methods and systems for mapping a wellbore for refracturing

#114
20210254458
2021-08-19

Determination of calibrated minimum horizontal stress magnitude using fracture closure pressure and multiple mechanical earth model realizations

#115
20210199006
2021-07-01

Hydraulic pressure testing system, and method of testing tubular products

#116
20210172316
2021-06-10

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

#117
20210164340
2021-06-03

Method and apparatus for automated pressure integrity testing (APIT)

#118
20210148227
2021-05-20

Relating To Injection Wells

#119
20210140314
2021-05-13

Method for evaluating gas well productivity with eliminating influence of liquid loading

#120
20210131280
2021-05-06

Selection of fluid systems based on well friction characteristics

#121
20210102461
2021-04-08

Well operations involving synthetic fracture injection test

#122
20210102460
2021-04-08

Wellbore pressure surge simulation systems, methods to perform surge simulations, and methods to configure pressure surge simulation systems

#123
20210054736
2021-02-25

Determining fracture properties using injection and step-rate analysis, dynamic injection test analysis, extracting pulse-type source signals from noisy data, and measuring friction parameters in a well

#124
20210041591
2021-02-11

Determination of geologic permeability correlative with magnetic permeability measured in-situ

#125
20210003492
2021-01-07

Method, a system, and a computer program product for determining soil properties using pumping tests

#126
20210003004
2021-01-07

Method and device for identifying structure of flow field in unconventional gas reservoir

#127
20210003003
2021-01-07

Drill stem testing

#128
20200400010
2020-12-24

DOWNHOLE AND NEAR WELLBORE RESERVOIR STATE INFERENCE THROUGH AUTOMATED INVERSE WELLBORE FLOW MODELING

#129
20200399999
2020-12-24

Opportunistic techniques for production optimization of gas-lifted wells

#130
20200392842
2020-12-17

Method for determining vertical well stratified fracturing crack lengths based on interlayer equilibrium displacement

#131
20200379139
2020-12-03

Apparatus and methods for evaluating formations

#132
20200378238
2020-12-03

Pressure measurement supercharging mitigation

#133
20200370430
2020-11-26

Methods and systems for characterizing and/or monitoring wormhole regimes in matrix acidizing

#134
20200340356
2020-10-29

Method for evaluating difference in gas injection effect of gas injection wells in carbonate reservoir

#135
20200332655
2020-10-22

Method for predicting the optimal shut-in duration by coupling fluid flow and geological stress

#136
20200332647
2020-10-22

Method for accurately measuring reopening pressure of hydraulic fracturing induced fracture in deep borehole

#137
20200332635
2020-10-22

Simultaneous injection and fracturing interference testing

#138
20200332634
2020-10-22

Simultaneous injection and fracturing interference testing

#139
20200318459
2020-10-08

Determination of the optimal fluid pulses for enhancement of reservoir permeability and productivity

#140
20200308468
2020-10-01

CROSS-LINKED LEVAN BLENDS AS LOST CIRULATION MATERIALS

#141
20200248549
2020-08-06

System and method for controlled pumping in a downhole sampling tool

#142
20200248514
2020-08-06

Method of controlling salinity of an injection water during commissioning of an injection well

#143
20200217195
2020-07-09

Apparatus and method for determining properties of an earth formation with probes of differing shapes

#144
20200199998
2020-06-25

Injection wells

#145
20200191678
2020-06-18

Pressure-based flaw detection

#146
20200182054
2020-06-11

Optimizing waste slurry disposal in fractured injection operations

#147
20200173261
2020-06-04

Optimizing waste slurry disposal in fractured injection operations

#148
20200149391
2020-05-14

Relative permeability ratio from wellbore drilling data

#149
20200109627
2020-04-09

METHOD FOR EVALUATING AND MONITORING FORMATION FRACTURE TREATMENT USING FLUID PRESSURE WAVES

#150
20200072997
2020-03-05

Sand pack and gravel pack acoustic evaluation method and system

#151
20200072048
2020-03-05

SYSTEM FOR DETERMINING RATE OF GROUND WATER RE-CONTAMINATION DUE TO ROCK MATRIX BACK DIFFUSION

#152
20200049851
2020-02-13

Methods and systems for quantification of NAPL transmissivity

#153
20200049003
2020-02-13

SYSTEMS AND METHODS FOR EVALUATING RESERVOIR SUPERCHARGED CONDITIONS

#154
20200018159
2020-01-16

Systems and methods to identify and inhibit spider web borehole failure in hydrocarbon wells

#155
20200011164
2020-01-09

Flow monitoring system

#156
20200003037
2020-01-02

Measurement of poroelastic pressure response

#157
20190368351
2019-12-05

Formation evaluation pumping system and method

#158
20190360331
2019-11-28

Method for evaluating connectivity between a first well and a second well in a hydrocarbon production field and related system

#159
20190360330
2019-11-28

ENHANCED CAPROCK INTEGRITY INTEGRATION FOR SUBSURFACE INJECTION OPERATIONS

#160
20190353033
2019-11-21

Systems and methods to predict and inhibit broken-out drilling-induced fractures in hydrocarbon wells

#161
20190346579
2019-11-14

Ubiquitous real-time fracture monitoring

#162
20190338638
2019-11-07

Performing a well operation based upon a minimum in-situ stress determination

#163
20190316466
2019-10-17

Determination of pore size distribution of reservoir rock

#164
20190292901
2019-09-26

Method and apparatus for automated pressure integrity testing (APIT)

#165
20190257977
2019-08-22

Systems and methods for generating permeability scaling functions to estimate permeability

#166
20190250090
2019-08-15

Method, a system, and a computer program product for determining soil properties using pumping tests

#167
20190242253
2019-08-08

METHOD FOR EVALUATING AND MONITORING FORMATION FRACTURE TREATMENT USING FLUID PRESSURE WAVES

#168
20190225877
2019-07-25

PROPPANT CONTAINING ELECTRICALLY CONDUCTIVE MATERIAL AND METHODS FOR MAKING AND USING SAME

#169
20190203567
2019-07-04

Method to manipulate a well using an underbalanced pressure container

#170
20190195068
2019-06-27

Predicting properties of well bore treatment fluids

#171
20190170899
2019-06-06

Pressure transient testing with sensitivity analysis

#172
20190162065
2019-05-30

Method for injectivity profiling of injection wells

#173
20190145252
2019-05-16

Embeddable downhole probe

#174
20190136684
2019-05-09

Method for evaluating and monitoring formation fracture treatment closure rates and pressures using fluid pressure waves

#175
20190136659
2019-05-09

Tester valve below a production packer

#176
20190112922
2019-04-18

Method and apparatus for testing lost circulation materials for subterranean formations

#177
20190085673
2019-03-21

Operating hydrocarbon wells using modeling of immiscible two phase flow in a subterranean formation

#178
20190063171
2019-02-28

Hydraulic fraction down-hole system with circulation port and jet pump for removal of residual fracking fluid

#179
20190055841
2019-02-21

PRODUCTION AND STIMULATION MONITORING

#180
20190055836
2019-02-21

Method for fracture activity monitoring and pressure wave resonance analyses for estimating geophysical parameters of hydraulic fractures using fracture waves

#181
20190032485
2019-01-31

Apparatus and method for transferring information acoustically from a borehole

#182
20190032479
2019-01-31

In-situ surfactant retention evaluation using single well chemical tracer tests

#183
20190017354
2019-01-17

Estimating measures of formation flow capacity and phase mobility from pressure transient data under segregated oil and water flow conditions

#184
20190017353
2019-01-17

Estimating measures of formation flow capacity and phase mobility from pressure transient data under segregated oil and water flow conditions

#185
20190010805
2019-01-10

Pressure testing for downhole fluid injection systems

#186
20190010789
2019-01-10

METHOD TO DETERMINE A LOCATION FOR PLACING A WELL WITHIN A TARGET RESERVOIR

#187
20180372690
2018-12-27

Acoustic emission sensor

#188
20180372689
2018-12-27

Acoustic emission monitoring and transmission system for engineering rock mass

#189
20180371903
2018-12-27

Downhole characterization of formation pressure

#190
20180371902
2018-12-27

Downhole characterization of formation pressure

#191
20180371886
2018-12-27

Simultaneous injection and fracturing interference testing

#192
20180320515
2018-11-08

System and method for controlled flowback

#193
20180320514
2018-11-08

Method for evaluating and monitoring formation fracture treatment using fluid pressure waves

#194
20180284309
2018-10-04

Seismic sensing systems and processes for using same

#195
20180283173
2018-10-04

Process for developing a subterranean formation by injection of a fluid comprising an additive labelled with a luminescent semiconducting nanocrystal

#196
20180258762
2018-09-13

Method of geometric evaluation of hydraulic fractures

#197
20180216454
2018-08-02

Method and apparatus for determining the permeability of a fracture in a hydrocarbon reservoir

#198
20180202264
2018-07-19

Method for estimating oil/gas production using statistical learning models

#199
20180171788
2018-06-21

Systems and methods for monitoring changes in a formation while dynamically flowing fluids

#200
20180171769
2018-06-21

Structure for fluid flowback control decision making and optimization

#201
20180163533
2018-06-14

Method and system for correcting a capillary pressure curve

#202
20180135395
2018-05-17

Downhole pressure measuring tool with a high sampling rate

#203
20180135385
2018-05-17

Determination of the optimal fluid pulses for enhancement of reservoir permeability and productivity

#204
20180108095
2018-04-19

System and method for production well test automation

#205
20180106148
2018-04-19

System and method for controlled pumping in a downhole sampling tool

#206
20180105405
2018-04-19

Kit, system, and method of use for lifting vehicles

#207
20180100948
2018-04-12

Method to automate pressure transient analysis (PTA) of continuously measured pressure data

#208
20180080316
2018-03-22

Methods and systems for characterizing and/or monitoring wormhole regimes in matrix acidizing

#209
20180037797
2018-02-08

Wellbore sealant using nanoparticles

#210
20180023389
2018-01-25

Formation pressure determination

#211
20180016897
2018-01-18

System and method for determining bottomhole conditions during flowback operations of a shale reservoir

#212
20180010430
2018-01-11

PRODUCTION MONITORING - MULTI VOLUME DYNAMIC SEMI STEADY PARAMETRIC MODEL

#213
20180003858
2018-01-04

Methods and systems for estimating sizes and effects of wellbore obstructions in water injection wells

#214
20170356291
2017-12-14

Automatic pumping control for leak-off tests

#215
20170329043
2017-11-16

Measuring gravity curvature for mapping subterranean formations

#216
20170328200
2017-11-16

Estimation of formation properties based on fluid flowback measurements

#217
20170275990
2017-09-28

Optimizing matrix acidizing treatment

#218
20170247981
2017-08-31

DEBRIS CONTROL SYSTEMS, APPARATUS, AND METHODS

#219
20170234126
2017-08-17

METHODS OF DETERMINING PROPERTIES OF SUBSURFACE FORMATIONS USING LOW SALINITY WATER INJECTION

#220
20170234121
2017-08-17

Systems and methods for transient-pressure testing of water injection wells to determine reservoir damages

#221
20170218756
2017-08-03

Predicting properties of well bore treatment fluids

#222
20170198573
2017-07-13

Fluid blocking analysis and chemical evalution

#223
20170183963
2017-06-29

Formation skin evaluation

#224
20170170842
2017-06-15

Real-time annulus pressure while drilling for formation integrity test

#225
20170153358
2017-06-01

Method of estimating well productivity along a section of a wellbore

#226
20170138187
2017-05-18

Downhole fiber optic measurement of packers during fluid injection operations

#227
20170116359
2017-04-27

Reservoir souring forecasting

#228
20170114613
2017-04-27

WELL RE-STIMULATION

#229
20170058192
2017-03-02

Carbon-based fluorescent tracers as oil reservoir nano-agents

#230
20170030174
2017-02-02

Method for managing production of hydrocarbons from a subterranean reservoir

#231
20170002653
2017-01-05

Carbon-based fluorescent tracers as oil reservoir nano-agents

#232
20170002652
2017-01-05

Method of geometric evaluation of hydraulic fractures by using pressure changes

#233
20160333684
2016-11-17

Completions index analysis

#234
20160251958
2016-09-01

Fracture characterisation

#235
20160230547
2016-08-11

Estimating permeability in unconventional subterranean reservoirs using diagnostic fracture injection tests

#236
20160230511
2016-08-11

Method for determining triaxial conductivity with arbitrary orientation using multiaxial electromagnetic measurements

#237
20160222765
2016-08-04

Estimating measures of formation flow capacity and phase mobility from pressure transient data under segregated oil and water flow conditions

#238
20160208599
2016-07-21

Measuring inter-reservoir cross flow rate through unintended leaks in zonal isolation cement sheaths in offset wells

#239
20160201452
2016-07-14

Measuring inter-reservoir cross flow rate between adjacent reservoir layers from transient pressure tests

#240
20160177712
2016-06-23

Method for determining a water intake profile in an injection well

#241
20160161630
2016-06-09

Monitoring Carbon Dioxide Flooding Using Nuclear Magnetic Resonance (NMR) Measurements

#242
20160161629
2016-06-09

Monitoring Carbon Dioxide Flooding Using Nuclear Magnetic Resonance (NMR) Measurements

#243
20160160642
2016-06-09

GENERATING SEISMIC PULSES USING PIEZOELECTRIC DEVICES TO MAP FRACTURES

#244
20160160638
2016-06-09

Sandface liner with power, control and communication link via a tie back string

#245
20160130940
2016-05-12

Systems and methods for formation fluid sampling

#246
20160130939
2016-05-12

Method and apparatus for testing lost circulation materials for subterranean formations

#247
20160116638
2016-04-28

Integrated interpretation of pressure and rate transients for production forecasting

#248
20160115780
2016-04-28

Completions index analysis

#249
20160108727
2016-04-21

Rock formation testing method and formation testing instrument

#250
20160102548
2016-04-14

Closed chamber impulse test with downhole flow rate measurement

#251
20160084078
2016-03-24

Method and system for hydraulic fracture diagnosis with the use of a coiled tubing dual isolation service tool

#252
20160084056
2016-03-24

Method and system for hydraulic fracture diagnosis with the use of a coiled tubing dual isolation service tool

#253
20160076369
2016-03-17

Well treatment

#254
20160002523
2016-01-07

DETERMINATION OF OIL SATURATION IN RESERVOIR ROCK USING PARAMAGNETIC NANOPARTICLES AND MAGNETIC FIELD

#255
20150378052
2015-12-31

Methods and systems for estimating sizes and effects of wellbore obstructions in water injection wells

#256
20150361792
2015-12-17

Systems and methods for optimizing analysis of subterranean well bores and fluids using noble gases

#257
20150361791
2015-12-17

System and method for controlled pumping in a downhole sampling tool

#258
20150355374
2015-12-10

Pressure transient test with sensitivity analysis

#259
20150260039
2015-09-17

Gravity monitoring of a water-flooded zone in areal sweep

#260
20150252668
2015-09-10

Method and apparatus for hydraulic fracture geometry evaluation

#261
20150233240
2015-08-20

Carbon-based fluorescent tracers as oil reservoir nano-agents

#262
20150233239
2015-08-20

Methods for interpretation of downhole flow measurement during wellbore treatments

#263
20150226055
2015-08-13

Subsea dummy run elimination assembly and related method

#264
20150218939
2015-08-06

GRAPHICAL METHOD FOR ASSISTING MULTI-ZONES COMMINGLING DECISION

#265
20150198036
2015-07-16

Method for estimating irreducible water saturation from mercury injection capillary pressure

#266
20150176403
2015-06-25

Apparatus and method for pulse testing a formation

#267
20150159484
2015-06-11

Downhole fluid analysis methods for determining viscosity

#268
20150159480
2015-06-11

Method of testing a barrier in a wellbore

#269
20150144333
2015-05-28

Monitoring fluid flow in a downhole assembly

#270
20150144332
2015-05-28

Modeling the suspendability of fibers in a treatment fluid using equations

#271
20150129232
2015-05-14

Rotational wellbore test valve

#272
20150075787
2015-03-19

Method for determining regions for stimulation along a wellbore within a hydrocarbon formation, and using such method to improve hydrocarbon recovery from the reservoir

#273
20150075779
2015-03-19

Designing an injection treatment for a subterranean region based on stride test data

#274
20150075778
2015-03-19

Controlling an injection treatment of a subterranean region based on stride test data

#275
20150075777
2015-03-19

Injection testing a subterranean region

#276
20150075775
2015-03-19

Method for determining regions for stimulation along two parallel adjacent wellbores in a hydrocarbon formation

#277
20150075273
2015-03-19

Alternative gauging system for production well testing and related methods

#278
20150060053
2015-03-05

Method for adaptive optimizing of heterogeneous proppant placement under uncertainty

#279
20150039235
2015-02-05

Permeability prediction systems and methods using quadratic discriminant analysis

#280
20150034307
2015-02-05

Dynamic in-situ measurement of reservoir wettability

#281
20150032377
2015-01-29

SYSTEM AND METHOD FOR REMAINING RESOURCE MAPPING

#282
20150019145
2015-01-15

Differential method for equitable allocation of hydrocarbon component yields using phase behavior process models

#283
20150013447
2015-01-15

Method and apparatus for in-situ fluid injector unit

#284
20150007985
2015-01-08

Packer-packer vertical interference testing

#285
20150000917
2015-01-01

Method and system for impact pressure generation

#286
20140373617
2014-12-25

Detection of permeability anisotropy in the horizontal plane with a formation testing tool

#287
20140360258
2014-12-11

Autonomous formation pressure test process for formation evaluation tool

#288
20140350860
2014-11-27

SYSTEMS, METHODS, AND COMPUTER-READABLE MEDIA FOR CONTINUOUS CAPILLARY PRESSURE ESTIMATION

#289
20140338898
2014-11-20

Electrically conductive proppant coating and related methods

#290
20140338895
2014-11-20

Method for recovery of hydrocarbon fluid

#291
20140318234
2014-10-30

Well testing apparatus and methods for measuring the properties and performance of oil and gas wells

#292
20140316707
2014-10-23

Formation tester interval pressure transient test and apparatus

#293
20140290937
2014-10-02

SHALE FRACTURE FLOW SIMULATION APPARATUS

#294
20140278113
2014-09-18

Real-time determination of formation fluid properties using density analysis

#295
20140251600
2014-09-11

Encapsulated microsensors for reservoir interrogation

#296
20140250998
2014-09-11

Detection of permeability anisotropy in the horizontal plane

#297
20140238663
2014-08-28

Apparatus and method for determining closure pressure from flowback measurements of a fractured formation

#298
20140202707
2014-07-24

Pressure testing valve and method of using the same

#299
20140200811
2014-07-17

Identifying reservoir drainage patterns from microseismic data

#300
20140195161
2014-07-10

Method for determining the complex response of a permeable stratum