ClassID:

135709

E21B47/1025 - CPC Classification

Classification description:

Recent Application in this class:
#1
20210278351
2021-09-09

Performing microwave measurements on samples under confining pressure using coaxial resonators

#2
20210254451
2021-08-19

Automated downhole leak detection and prediction in water injection wells

#3
20210231003
2021-07-29

WELLBORE LEAK DETERMINATION

#4
20210222544
2021-07-22

LIQUID FILLING AND TESTING OF MARINE DRILLING RISER

#5
20210180445
2021-06-17

Method and system to determine variations in a fluidic channel

#6
20210172269
2021-06-10

Deploying wellbore patch for mitigating lost circulation

#7
20210109251
2021-04-15

Determination of a surface leak rate in an injection well

#8
20200370428
2020-11-26

Caliper-behind-casing from pulsed neutron apparatus

#9
20200347699
2020-11-05

Tubing tester valve and associated methods

#10
20200340790
2020-10-29

Subterranean well torpedo distributed acoustic sensing system and method

#11
20200319366
2020-10-08

Systems and methods for radar detection

#12
20200284142
2020-09-10

Leak detection systems and methods for components of a mineral extraction system

#13
20200248523
2020-08-06

Back pressure valve plug

#14
20200224510
2020-07-16

Modular vertical wet christmas tree, installation method and intervention method thereof

#15
20200200943
2020-06-25

Methods and systems for providing access to interferometric system data

#16
20200182048
2020-06-11

Method and system for integrity testing

#17
20200182045
2020-06-11

Downhole monitoring of hydraulic equipment

#18
20200182041
2020-06-11

Well tool pressure testing

#19
20200173880
2020-06-04

Automated determination of valve closure and inspection of a flowline

#20
20200165915
2020-05-28

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

#21
20200165895
2020-05-28

Well tool assembly

#22
20200157934
2020-05-21

PROFILE MEASUREMENT FOR UNDERGROUND HYDROCARBON STORAGE CAVERNS

#23
20200157933
2020-05-21

PROFILE MEASUREMENT FOR UNDERGROUND HYDROCARBON STORAGE CAVERNS

#24
20200095861
2020-03-26

Identifying tubing leaks via downhole sensing

#25
20200095840
2020-03-26

Dissolvable thread tape and plugs for wells

#26
20200072048
2020-03-05

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

#27
20200056446
2020-02-20

Tandem cement retainer and bridge plug

#28
20200048999
2020-02-13

Well and overburden monitoring using distributed acoustic sensors

#29
20200040687
2020-02-06

Wellhead assembly and method

#30
20200032627
2020-01-30

Gas lift valve having shear open mechanism for pressure testing

#31
20200024929
2020-01-23

Stored-energy pressure activated completion and testing tools and methods of use

#32
20190339156
2019-11-07

Hydrostatic and vibration test method for a blowout preventer

#33
20190338619
2019-11-07

Method For Determining The Integrity Of An Oil Well Plug

#34
20190330960
2019-10-31

ROV hot-stab with integrated sensor

#35
20190323343
2019-10-24

Tool for testing within a wellbore

#36
20190323337
2019-10-24

Fluid Delivery System Comprising One or More Sensing Devices and Related Methods

#37
20190309598
2019-10-10

Pressure energized seal actuator ring

#38
20190292872
2019-09-26

Analyzer For A Blowout Preventer

#39
20190292866
2019-09-26

Method to manipulate a well using an overbalanced pressure container

#40
20190271611
2019-09-05

Method for testing for fluid leaks

#41
20190271225
2019-09-05

BOP elastomer health monitoring

#42
20190257193
2019-08-22

Downhole test tool and method of use

#43
20190257187
2019-08-22

Downhole well integrity reconstruction in the hydrocarbon industry

#44
20190257169
2019-08-22

Method of plugging and pressure testing a well

#45
20190234164
2019-08-01

Selective test tool

#46
20190226327
2019-07-25

Downhole test tool and method of use

#47
20190169983
2019-06-06

Subsea isolation sleeve system

#48
20190162049
2019-05-30

Method and apparatus for washing an upper completion

#49
20190153806
2019-05-23

DIAGNOSTIC TOOL FOR WELL ABANDONMENT TOOL

#50
20190145851
2019-05-16

Hydrostatic and vibration test method for a blowout preventer

#51
20190145199
2019-05-16

Hydraulic filtration and pressure testing device

#52
20190145196
2019-05-16

Subsea system with landing indication

#53
20190136684
2019-05-09

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

#54
20190128115
2019-05-02

Casing system having sensors

#55
20190079002
2019-03-14

Hydraulic filtration and pressure testing device

#56
20190078962
2019-03-14

System and method for testing high pressure fluid control products

#57
20190078961
2019-03-14

System and method for testing high pressure fluid control products

#58
20190071965
2019-03-07

LEAK DETECTION SYSTEM FOR INTERMITTENT USE PIPELINES

#59
20190049622
2019-02-14

Data fusion enhanced multi-modality wellbore integrity inspection system

#60
20190049619
2019-02-14

Wellbore detector with azimuthal and spectral energy resolution

#61
20190049618
2019-02-14

Multi-barrier wellbore integrity inspection system with eccentricity correction

#62
20190040709
2019-02-07

Test dart system and method

#63
20190040703
2019-02-07

Vibration-induced installation of wellbore casing

#64
20190032485
2019-01-31

Apparatus and method for transferring information acoustically from a borehole

#65
20190032480
2019-01-31

Automated inversion workflow for defect detection tools

#66
20190024498
2019-01-24

Downhole communication device

#67
20190003301
2019-01-03

Sealing device test systems and methods

#68
20180371895
2018-12-27

Smart well plug and method for inspecting the integrity of a barrier in an underground wellbore

#69
20180371868
2018-12-27

Method for sealing perforation tunnels with swelling elastomer material

#70
20180355713
2018-12-13

Profile measurement for underground hydrocarbon storage caverns

#71
20180355696
2018-12-13

Downhole completion tool

#72
20180335363
2018-11-22

Methods for detecting leaks in liquid pipelines

#73
20180320506
2018-11-08

Communication through a hanger and wellhead

#74
20180291728
2018-10-11

Detection of influx and loss of circulation

#75
20180283168
2018-10-04

Directional monitoring of injection flood fronts

#76
20180274358
2018-09-27

System and method for detecting cross bores

#77
20180230798
2018-08-16

Pump isolation apparatus and method for use in tubing string pressure testing

#78
20180230797
2018-08-16

Estimation of flow rates using acoustics in a subterranean borehole and/or formation

#79
20180223651
2018-08-09

Leak detection for downhole isolation valve

#80
20180209236
2018-07-26

Methods for Conducting a Subsea Well Intervention, and Related System, Assembly and Apparatus

#81
20180177064
2018-06-21

Sensor device, systems, and methods for determining fluid parameters

#82
20180171783
2018-06-21

Sensor device, systems, and methods for identifying leaks in a fluid conduit

#83
20180156687
2018-06-07

Leak detection method

#84
20180156024
2018-06-07

Instrumented subsea flowline jumper connector

#85
20180148301
2018-05-31

Connector system

#86
20180135620
2018-05-17

Hydraulic artificial lift for driving downhole pumps

#87
20180128084
2018-05-10

Facility for monitoring geological gas storage sites

#88
20180100380
2018-04-12

Well control using a modified liner tie-back

#89
20180058156
2018-03-01

Method of running a passively motion compensated tubing hanger running tool assembly

#90
20180052071
2018-02-22

Method and System for Determining a Fluid Leak

#91
20180045014
2018-02-15

WELLBORE PLUG STRUCTURE AND METHOD FOR PRESSURE TESTING A WELLBORE

#92
20180038207
2018-02-08

Jet perforating and cutting method

#93
20170356291
2017-12-14

Automatic pumping control for leak-off tests

#94
20170335659
2017-11-23

DOWNHOLE COMPLETION TOOL

#95
20170321522
2017-11-09

Determining wellbore leak crossflow rate between formations in an injection well

#96
20170321519
2017-11-09

Downhole completion tool

#97
20170247973
2017-08-31

Systems and methods for an expandable packer

#98
20170219455
2017-08-03

In-Line Composition and Volumetric Analysis of Vent Gases and Flooding of the Annular Space of Flexible Pipe

#99
20170198555
2017-07-13

Running a mudline closure device integral with a wellhead

#100
20170191363
2017-07-06

Distributed fiber optic monitoring of vibration to generate a noise log to determine characteristics of fluid flow

#101
20170183956
2017-06-29

System and methodology using annulus access valve

#102
20170152740
2017-06-01

Test tube with an inlet for filling with fluid and expelling air, and with enhanced resistance and sealing for the BOP testing step in drilling systems

#103
20170044863
2017-02-16

Method of sealing a fracture in a wellbore and sealing system

#104
20170044857
2017-02-16

METHOD OF OPERATING A DRILLING SYSTEM

#105
20160313208
2016-10-27

Method for testing for fluid leaks

#106
20160312606
2016-10-27

Method for detecting leakage in an underground hydrocarbon storage cavern

#107
20160312570
2016-10-27

Disappearing expandable cladding

#108
20160305235
2016-10-20

Apparatus for detecting acoustic signals in a housing

#109
20160298447
2016-10-13

Leakage detection using smart field technology

#110
20160290889
2016-10-06

Hydrostatic and vibration test system for a blowout preventative

#111
20160281457
2016-09-29

Test packer and method for use

#112
20160274078
2016-09-22

Modular sensed annular well apparatus for cement testing

#113
20160215888
2016-07-28

Bidirectionally testable seal configuration

#114
20160177701
2016-06-23

Method and system for pressure testing downhole tubular connections using a reference port

#115
20160168976
2016-06-16

System for detecting leakage in a pump used in hydraulic fracturing

#116
20160160635
2016-06-09

MEASUREMENT DEVICE

#117
20160160634
2016-06-09

SYSTEM FOR NON-INVASIVE CONTROLLING OF UNDERGROUND STORAGES AND METHOD FOR DETECTING LEAKAGES IN UNDERGROUND STORAGES

#118
20160097267
2016-04-07

Multi-zone completion assembly installation and testing

#119
20160069154
2016-03-10

Pressure release assembly for casing of drilling rig

#120
20160053609
2016-02-25

Leak detection in circulated fluid systems for heating subsurface formations

#121
20150369040
2015-12-24

Hydraulic delay toe valve system and method

#122
20150361782
2015-12-17

Method of pressure testing a plugged well

#123
20150354347
2015-12-10

System and method for a benchmark pressure test

#124
20150354346
2015-12-10

System and method for a benchmark pressure test

#125
20150330214
2015-11-19

Wellbore systems with hydrocarbon leak detection apparatus and methods

#126
20150330173
2015-11-19

Method for monitoring a sealing element

#127
20150300154
2015-10-22

Barrier testing method

#128
20150285060
2015-10-08

Subsea leak-detecting system

#129
20150285024
2015-10-08

Bridge plug with selectivity opened through passage

#130
20150233233
2015-08-20

Measuring behind casing hydraulic conductivity between reservoir layers

#131
20150176392
2015-06-25

Perforating packer casing evaluation methods

#132
20150159480
2015-06-11

Method of testing a barrier in a wellbore

#133
20150128693
2015-05-14

System and method for a pressure test

#134
20150075793
2015-03-19

Apparatus and method for jet perforating and cutting tool

#135
20150013971
2015-01-15

Test packer and method for use

#136
20150007649
2015-01-08

Method for testing the tightness of cavities and device for decreasing convection and diffusion flow

#137
20140338896
2014-11-20

Determining whether a wellbore sealing operation has been performed correctly

#138
20140299316
2014-10-09

Well tool pressure testing

#139
20140262314
2014-09-18

System for detecting, containing and removing hydrocarbon leaks in a subsea environment

#140
20140262246
2014-09-18

Method of controlling well bore pressure based on model prediction control theory and systems theory

#141
20140196892
2014-07-17

Interruptible pressure testing valve

#142
20140190687
2014-07-10

Leak detection in circulated fluid systems for heating subsurface formations

#143
20140129506
2014-05-08

Systems and methods for an expert system for well control using Bayesian intelligence

#144
20140116715
2014-05-01

System and method for monitoring a subsea well

#145
20140110124
2014-04-24

WELLBORE LEAK DETECTION SYSTEMS AND METHODS OF USING THE SAME

#146
20140060848
2014-03-06

Plug and pressure testing method and apparatus

#147
20140000348
2014-01-02

Location of a leak in a pipe

#148
20130341011
2013-12-26

Debris resistant internal tubular testing system

#149
20130311097
2013-11-21

Methods and systems for pressure testing components of a hydrocarbon well system

#150
20130220625
2013-08-29

Subsea orientation and control system

#151
20130213644
2013-08-22

Method for signalling a downhole device in a well

#152
20130168100
2013-07-04

Apparatuses and methods for determining wellbore influx condition using qualitative indications

#153
20130168087
2013-07-04

Downhole tool and method

#154
20130167944
2013-07-04

Method and system for testing a multiplexed BOP control system

#155
20130104643
2013-05-02

Tool for testing downhole tubing

#156
20130062056
2013-03-14

Multiple annulus universal monitoring and pressure relief assembly for subsea well completion systems and method of using same

#157
20120175108
2012-07-12

Test packer and method for use

#158
20120136579
2012-05-31

Apparatus and method for detecting and quantifying leakage in a pipe

#159
16290583
2020-06-02

Adaptor for electronic submersible pump

#160
15181879
2018-03-06

Leak detection system