ClassID:

135738

E21B49/087 - page 2 - 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; Obtaining fluid samples or testing fluids, in boreholes or wells Well testing, e.g. testing for reservoir productivity or formation parameters

Recent Application in this class:
#301
20160084079
2016-03-24

Fast-setting retrievable slim-hole test packer and method of use

#302
20160075937
2016-03-17

Proppant compositions and methods of use

#303
20160063146
2016-03-03

Network flow model

#304
20160041286
2016-02-11

Methods for measuring properties of multiphase oil-water-gas mixtures

#305
20160041120
2016-02-11

Devices and methods for measuring analyte concentration

#306
20160025895
2016-01-28

Well treatment with digital core analysis

#307
20160024372
2016-01-28

Subterranean producing zone treatment

#308
20160010454
2016-01-14

Tracer based flow measurement

#309
20160003970
2016-01-07

In-situ calibration of tools

#310
20160003031
2016-01-07

Intelligent test system and method for multi-segment fractured horizontal well

#311
20150377776
2015-12-31

Probe using ultraviolet and infrared radiation for multi-phase flow analysis

#312
20150377022
2015-12-31

Use of long chain alcohols, ketones and organic acids as tracers

#313
20150370934
2015-12-24

COMPLETION DESIGN BASED ON LOGGING WHILE DRILLING (LWD) DATA

#314
20150369043
2015-12-24

FLUID ANALYSIS SYSTEM WITH INTEGRATED COMPUTATION ELEMENT FORMED USING ATOMIC LAYER DEPOSITION

#315
20150363520
2015-12-17

Methods and systems for calculating and evaluating value of information for reservoir fluid models derived from DFA tool data

#316
20150300164
2015-10-22

SENSING APPARATUS, METHOD, AND APPLICATIONS

#317
20150285939
2015-10-08

Hold-up tool with conformable sensors for highly-deviated or horizontal wells

#318
20150267521
2015-09-24

Formation treatment evaluation

#319
20150260039
2015-09-17

Gravity monitoring of a water-flooded zone in areal sweep

#320
20150252669
2015-09-10

METHOD AND APPARATUS FOR RESERVOIR TESTING AND MONITORING

#321
20150241595
2015-08-27

Triple phase evaluation of formation fluids

#322
20150233241
2015-08-20

ENERGY HARVESTING SYSTEM FOR REMOTE MONITORING DEVICES

#323
20150233234
2015-08-20

Methods and apparatus to detect fluid distributions

#324
20150233233
2015-08-20

Measuring behind casing hydraulic conductivity between reservoir layers

#325
20150226062
2015-08-13

Systems and methods for localized well analysis and control

#326
20150226023
2015-08-13

Downhole tool and method for passing control line through tool

#327
20150219609
2015-08-06

Measurement of hazardous gases in hydraulic fracking sites

#328
20150212232
2015-07-30

Microfluidic optical computing device

#329
20150198039
2015-07-16

Oil well production analyzing system

#330
20150198036
2015-07-16

Method for estimating irreducible water saturation from mercury injection capillary pressure

#331
20150192011
2015-07-09

Methods and apparatus for oil sample analysis using J-edit nuclear magnetic resonance

#332
20150185360
2015-07-02

Asphaltene gradient modeling methods

#333
20150176402
2015-06-25

Applications Based On Fluid Properties Measured Downhole

#334
20150176382
2015-06-25

Recovery from a hydrocarbon reservoir

#335
20150167459
2015-06-18

Dielectric contrast agents and methods

#336
20150144776
2015-05-28

Material characteristic estimation using internal reflectance spectroscopy

#337
20150142317
2015-05-21

Method and apparatus for consistent and robust fitting in oil based mud filtrate contamination monitoring from multiple downhole sensors

#338
20150138557
2015-05-21

Image-based measurement of a fluid

#339
20150136963
2015-05-21

Immersion probe for multi-phase flow assurance

#340
20150136387
2015-05-21

FLUID EXCLUDER FOR LOGGING IN WATER BASED MUDS

#341
20150130468
2015-05-14

Apparatus and method for monitoring a fluid

#342
20150127262
2015-05-07

Method and apparatus for formation tester data interpretation with diverse flow models

#343
20150107860
2015-04-23

Formation tester tool assembly and method

#344
20150107827
2015-04-23

Method for Determining A Filtration Velocity of Reservoir Fluids

#345
20150107825
2015-04-23

DOWNHOLE DEVICE FOR DATA ACQUISITION DURING HYDRAULIC FRACTURING OPERATION AND METHOD THEREOF

#346
20150076334
2015-03-19

Seismic acquisition system including a distributed sensor having an optical fiber

#347
20150075273
2015-03-19

Alternative gauging system for production well testing and related methods

#348
20150060054
2015-03-05

Modeling and production of tight hydrocarbon reservoirs

#349
20150047979
2015-02-19

Capillary electrophoresis for subterranean applications

#350
20150040657
2015-02-12

Automatic optimizing methods for reservoir testing

#351
20150013968
2015-01-15

System and method for operating a pump in a downhole tool

#352
20140352397
2014-12-04

Optical fluid analyzer with calibrator and method of using same

#353
20140338897
2014-11-20

METHODS FOR DETERMINING ORGANIC MATTER IN SHALE

#354
20140311736
2014-10-23

Zonal testing with the use of coiled tubing

#355
20140300895
2014-10-09

In situ evaluation of unconventional natural gas reservoirs

#356
20140297237
2014-10-02

Use of monte carlo simulations for establishing correlations and their uncertainties

#357
20140245827
2014-09-04

In-situ detection and analysis of methane in coal bed methane formations with spectrometers

#358
20140238670
2014-08-28

Downhole Measurement Of Formation Characteristics While Drilling

#359
20140238668
2014-08-28

Testing while fracturing while drilling

#360
20140200810
2014-07-17

Methods for reservoir evaluation employing non-equilibrium compositional gradients

#361
20140158363
2014-06-12

Wellbore servicing fluids and methods of making and using same

#362
20140157884
2014-06-12

Methods and apparatus for determining downhole parametes

#363
20140144623
2014-05-29

METHOD FOR INCREASING PRODUCT RECOVERY IN FRACTURES PROXIMATE FRACTURE TREATED WELLBORES

#364
20140136117
2014-05-15

Method and system for permeability calculation using production logs for horizontal wells, using a downhole tool

#365
20140136116
2014-05-15

Method and system for permeability calculation using production logs for horizontal wells

#366
20140131031
2014-05-15

Filtration system and method for a packer

#367
20140114577
2014-04-24

Method and system of selecting hydrocarbon wells for well testing

#368
20140076546
2014-03-20

Single trip multi-zone drill stem test system

#369
20140048256
2014-02-20

Downhole tester valve having rapid charging capabilities and method for use thereof

#370
20140033816
2014-02-06

Multi-Phase Region Analysis Method And Apparatus

#371
20140000965
2014-01-02

Method for hydrocarbon well completion

#372
20130327137
2013-12-12

Method for measuring pressure in an underground formation

#373
20130315032
2013-11-28

Methods and systems for deploying seismic devices

#374
20130311099
2013-11-21

Method and apparatus for evaluating fluid sample contamination by using multi sensors

#375
20130304385
2013-11-14

HOLDING TANK MONITORING SYSTEM

#376
20130239664
2013-09-19

Fluid density from downhole optical measurements

#377
20130138405
2013-05-30

Use of monte carlo simulations for establishing correlations and their uncertainties

#378
20130131989
2013-05-23

Apparatus and computer readable medium for determining well characteristics and pore architecture utilizing conventional well logs

#379
20130103319
2013-04-25

Methods for determining well characteristics and pore architecture utilizing conventional well logs

#380
20130090855
2013-04-11

Methods for evaluating inflow and outflow in a subterranean wellbore

#381
20130085675
2013-04-04

Applications based on fluid properties measured downhole

#382
20130081806
2013-04-04

Debris resistant internal tubular testing system

#383
20130063000
2013-03-14

Piezoelectric transducer for measuring fluid properties

#384
20130062222
2013-03-14

Electrochemical sensor system

#385
20130037270
2013-02-14

Apparatus, system and method for injecting a fluid into a formation downhole

#386
20130031972
2013-02-07

METHODS FOR MONITORING A WATER SOURCE USING OPTICOANALYTICAL DEVICES

#387
20130016336
2013-01-17

Immersion probe using ultraviolet and infrared radiation for multi-phase flow analysis

#388
20130009048
2013-01-10

Immersion probe for multi-phase flow assurance

#389
20120312530
2012-12-13

In-situ detection and analysis of methane in coal bed methane formations with spectrometers

#390
20120285896
2012-11-15

SYSTEM AND METHOD TO MEASURE HYDROCARBONS PRODUCED FROM A WELL

#391
20120275658
2012-11-01

Petrographic image analysis for determining capillary pressure in porous media

#392
20120255787
2012-10-11

Method for hydrocarbon well completion

#393
20120227960
2012-09-13

Determination of coal bed natural gas production factors and a system to determine same

#394
20120186825
2012-07-26

Remote actuation testing tool for high pressure differential downhole environments

#395
20120118040
2012-05-17

System and method for sampling and analyzing downhole formation fluids

#396
20120035854
2012-02-09

Seismic acquisition system including a distributed sensor having an optical fiber

#397
20110320127
2011-12-29

Methods and apparatus to control a formation testing operation based on a mudcake leakage

#398
20110284227
2011-11-24

Formation treatment evaluation

#399
20110272148
2011-11-10

Methods, systems and apparatus for coiled tubing testing

#400
20110198078
2011-08-18

Formation evaluation instrument and method

#401
20110191029
2011-08-04

SYSTEM AND METHOD FOR WELL TEST DESIGN, INTERPRETATION AND TEST OBJECTIVES VERIFICATION

#402
20110168389
2011-07-14

Surface Controlled Downhole Shut-In Valve

#403
20110132601
2011-06-09

Multi-zone formation evaluation systems and methods

#404
20110130966
2011-06-02

METHOD FOR WELL TESTING

#405
20110088895
2011-04-21

Downhole measurement of formation characteristics while drilling

#406
20110042077
2011-02-24

Formation tester tool assembly

#407
20110042070
2011-02-24

Fluid density from downhole optical measurements

#408
20110030467
2011-02-10

Real-time completion monitoring with acoustic waves

#409
20110017448
2011-01-27

Zonal testing with the use of coiled tubing

#410
20100294491
2010-11-25

Cleanup production during sampling

#411
20100264915
2010-10-21

Formation testing and evaluation using localized injection

#412
20100195436
2010-08-05

Methods and systems for deploying seismic devices

#413
20100175467
2010-07-15

System and method for sampling and analyzing downhole formation fluids

#414
20100086180
2010-04-08

System, method and apparatus for exploration

#415
20100076740
2010-03-25

SYSTEM AND METHOD FOR WELL TEST DESIGN AND INTERPRETATION

#416
20100044044
2010-02-25

Controlling transient underbalance in a wellbore

#417
20090301716
2009-12-10

PUMP SYSTEM FOR ZONAL ISOLATION TESTING

#418
20090288824
2009-11-26

MULTI-ZONE FORMATION FLUID EVALUATION SYSTEM AND METHOD FOR USE OF SAME

#419
20090283265
2009-11-19

Formation testing apparatus and methods

#420
20090282907
2009-11-19

Methods and apparatus to control a formation testing operation based on a mudcake leakage

#421
20090276156
2009-11-05

Automated hydrocarbon reservoir pressure estimation

#422
20090234584
2009-09-17

DATA GATHERING, TRANSMISSION, INTEGRATION AND INTERPRETATION DURING COILED TUBING WELL TESTING OPERATIONS

#423
20090204328
2009-08-13

REFINED ANALYTICAL MODEL FOR FORMATION PARAMETER CALCULATION

#424
20080302529
2008-12-11

Multi-zone formation fluid evaluation system and method for use of same

#425
20080230221
2008-09-25

METHODS AND SYSTEMS FOR MONITORING NEAR-WELLBORE AND FAR-FIELD RESERVOIR PROPERTIES USING FORMATION-EMBEDDED PRESSURE SENSORS

#426
20080190605
2008-08-14

Apparatus and methods of flow testing formation zones

#427
20080115934
2008-05-22

Multi-zone formation evaluation systems and methods

#428
20080099195
2008-05-01

METHOD AND APPARATUS FOR ISOLATING AND TESTING ZONES DURING REVERSE CIRCULATION DRILLING

#429
20080066538
2008-03-20

Downhole fluid analysis for production logging

#430
20070256489
2007-11-08

System and method for estimating formation supercharge pressure

#431
20070193741
2007-08-23

Method and Apparatus For Testing And Treatment Of A Completed Well With Production Tubing In Place

#432
20070162235
2007-07-12

Interpreting well test measurements

#433
20070079960
2007-04-12

Well treatment system and method

#434
20070044960
2007-03-01

Methods, systems and apparatus for coiled tubing testing

#435
20070035736
2007-02-15

Spectral imaging for downhole fluid characterization

#436
20070034369
2007-02-15

Controlling transient pressure conditions in a wellbore

#437
20070007008
2007-01-11

Formation tester tool assembly and method of use

#438
20060198742
2006-09-07

Downhole uses of piezoelectric motors

#439
20060196670
2006-09-07

Well testing system

#440
20050224228
2005-10-13

Method and apparatus for isolating and testing zones during reverse circulation drilling

#441
20050199394
2005-09-15

Production profile determination and modification system

#442
20050178562
2005-08-18

METHOD AND APPARATUS FOR ISOLATING AND TESTING ZONES DURING REVERSE CIRCULATION DRILLING

#443
20050061506
2005-03-24

Well treatment system and method

#444
20050053473
2005-03-10

Well jet device for testing and studying formations and the operating method thereof

#445
19244015
2026-05-19

Wireless single trip abandonment downhole testing isolation system

#446
18828868
2026-03-10

Pressure compensated locking sampling tool

#447
18678292
2024-09-17

Gas based testing method for pore volume compressibility of low-permeability rock

#448
18664641
2024-12-31

Identifying hydrogen sweet spots in subsurface formations

#449
18523833
2024-05-14

Devices and methods for testing retrograde condensation damage in near well zones of condensate gas reservoirs with high condensate content

#450
17399758
2022-10-11

Polymeric sleeve for guiding an untethered measurement device in a Christmas tree valve

#451
16700239
2020-10-27

Method for obtaining formation parameters of gas hydrate reservoir through well testing interpretation

#452
16553714
2021-01-12

Determination of a rock testability index for formation testing

#453
15495512
2018-04-24

Oscillating path length spectrometer

#454
14874578
2017-02-07

Chemiresistive sensors for downhole tools

#455
14814272
2016-09-06

Self-calibrating fluid measuring device