ClassID:

135287

E21B17/003 - page 2 - CPC Classification

Classification description:

Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings Cables; ; Tubings with electrically conducting or insulating means

Recent Application in this class:
#301
20170110220
2017-04-20

Synthetic Power Cable For Downhole Electrical Devices

#302
20170107794
2017-04-20

Multilateral junction fitting for intelligent completion of well

#303
20170081925
2017-03-23

Cable for an electrically submersible pump (ESP) arrangement

#304
20170074450
2017-03-16

Joint assembly for forming a duct

#305
20170074048
2017-03-16

Well integrity monitoring system with wireless coupler

#306
20170059737
2017-03-02

System and method for mapping deep anomalous zones of electrical resistivity

#307
20170058098
2017-03-02

Composite cables

#308
20170051609
2017-02-23

CONTROLLING A DOWNHOLE TOOL ON A DOWNHOLE CABLE

#309
20170051591
2017-02-23

Systems and Methods for Providing Power and Communications for Downhole Tools

#310
20170044893
2017-02-16

Downhole electronics carrier

#311
20170044841
2017-02-16

Drill string inground isolator in an MWD system and associated method

#312
20170044839
2017-02-16

Gap assembly for EM data telemetry

#313
20170037685
2017-02-09

Tool face control of a downhole tool with reduced drill string friction

#314
20170037683
2017-02-09

Method of using a top drive system

#315
20170026085
2017-01-26

Resident ROV Signal Distribution Hub

#316
20170022805
2017-01-26

Downhole low rate linear repeater relay network timing system and method

#317
20170022766
2017-01-26

Downhole switch assemblies and methods

#318
20170016284
2017-01-19

Centralizer for downhole probes

#319
20170009570
2017-01-12

System and method for controlling a dual telemetry measurement while drilling (MWD) tool

#320
20160369573
2016-12-22

Method of incorporating remote communication with oilfield tubular handling apparatus

#321
20160362976
2016-12-15

Dual telemetry receiver for a measurement while drilling (MWD) system

#322
20160362972
2016-12-15

Systems and methods for estimating forces on a drill bit

#323
20160362940
2016-12-15

Gap sub assembly for a downhole telemetry system

#324
20160356095
2016-12-08

Protection assembly for downhole wet connectors

#325
20160352089
2016-12-01

End termination for three-phase insulated conductors

#326
20160348495
2016-12-01

Advanced drill string inground isolator housing in an MWD system and associated method

#327
20160348481
2016-12-01

Completion systems with a bi-directional telemetry system

#328
20160341924
2016-11-24

HYBRID ELECTRICAL AND OPTICAL FIBER CABLE SPLICE HOUSINGS

#329
20160340987
2016-11-24

Logging-while-tripping system and methods

#330
20160340982
2016-11-24

Pipe joint having coupled adapter

#331
20160329648
2016-11-10

Transmission line segment coupler defining fluid passage ways and related methods

#332
20160326867
2016-11-10

Reliable downhole data transmission system

#333
20160319621
2016-11-03

Radio frequency and fluid coupler for a subterranean assembly and related methods

#334
20160319607
2016-11-03

Method and system for deploying an electrical submersible pump in a wellbore

#335
20160293294
2016-10-06

CABLE FOR DOWNHOLE EQUIPMENT

#336
20160290063
2016-10-06

Methods of coupling a downhole control line connector

#337
20160290059
2016-10-06

Redundant, adaptable slip ring

#338
20160265320
2016-09-15

Milling well casing using electromagnetic pulse

#339
20160237811
2016-08-18

Downhole assembly employing wired drill pipe

#340
20160237760
2016-08-18

Inductive coupler assembly for downhole transmission line

#341
20160233008
2016-08-11

Cable for downhole tractor deployment

#342
20160222736
2016-08-04

Electrically conductive fiber optic slickline for coiled tubing operations

#343
20160217888
2016-07-28

POWER CABLE GAS BARRIER

#344
20160201396
2016-07-14

INTEGRATED INSPECTION AND MAINTENANCE RAISE BORING METHOD AND AN ASSOCIATED DRILL STRING ARRANGEMENT

#345
20160194953
2016-07-07

Transmitting data across electrically insulating gaps in a drill string

#346
20160194923
2016-07-07

Method and system for data-transfer via a drill pipe

#347
20160186501
2016-06-30

Systems and methods for operating electrically-actuated coiled tubing tools and sensors

#348
20160168923
2016-06-16

Helical control line connector for connecting to a downhole completion receptacle

#349
20160160636
2016-06-09

Stripline energy transmission in a wellbore

#350
20160146000
2016-05-26

Methods and apparatus for generating electromagnetic telemetry signals

#351
20160145958
2016-05-26

Production packer-setting tool with electrical control line

#352
20160130932
2016-05-12

Downhole pocket electronics

#353
20160129474
2016-05-12

Subsea umbilical

#354
20160123126
2016-05-05

Use of real-time pressure data to evaluate fracturing performance

#355
20160115766
2016-04-28

Transmitting power to gas lift valve assemblies in a wellbore

#356
20160097478
2016-04-07

Pipe element having a composite pipe and a metal connector

#357
20160069179
2016-03-10

Systems and methods for double data rate communication via power cable

#358
20160069176
2016-03-10

Extending the life of a compromised umbilical

#359
20160060961
2016-03-03

HIGH-VOLTAGE DRILLING METHODS AND SYSTEMS USING HYBRID DRILLSTRING CONVEYANCE

#360
20160053588
2016-02-25

Electrical generator and electric motor for downhole drilling equipment

#361
20160053553
2016-02-25

Wired mud motor components, methods of fabricating the same, and downhole motors incorporating the same

#362
20160049718
2016-02-18

Wired pipe coupler connector

#363
20160047933
2016-02-18

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

#364
20160047222
2016-02-18

SYSTEMS AND METHODS FOR REMOVAL OF ELECTROMAGNETIC DISPERSION AND ATTENUATION FOR IMAGING OF PROPPANT IN AN INDUCED FRACTURE

#365
20160047213
2016-02-18

System and method for dry fracture shale energy extraction

#366
20160040509
2016-02-11

Electro-Mechanical-Hydraulic Instrument Bus

#367
20160033063
2016-02-04

Composite to metal end fitting joint

#368
20160032715
2016-02-04

RIG TELEMETRY SYSTEM

#369
20160032660
2016-02-04

Pinned electromagnetic telemetry gap sub assembly

#370
20160025945
2016-01-28

Methods and cables for use in fracturing zones in a well

#371
20160024855
2016-01-28

Drill pipe

#372
20160024854
2016-01-28

Side-exit motor cable connections

#373
20160017671
2016-01-21

Wellbore electrical isolation system

#374
20160017663
2016-01-21

Repetitive pulsed electric discharge apparatuses and methods of use

#375
20160010446
2016-01-14

Detection of downhole data telemetry signals

#376
20150380839
2015-12-31

Ground current diverter

#377
20150368983
2015-12-24

Reciprocating debris exclusion device for downhole connectors

#378
20150361771
2015-12-17

Subsea hydrocarbon production system

#379
20150361732
2015-12-17

INDEXABLE TUBING STABILIZER AND PROTECTOR

#380
20150354292
2015-12-10

UMBILICAL

#381
20150337651
2015-11-26

Reliable downhole data transmission system

#382
20150337642
2015-11-26

Oil well improvement system—well monitor and control subsystem

#383
20150337605
2015-11-26

Systems and methods of securing and protecting wellbore control lines

#384
20150337604
2015-11-26

Isolator sub

#385
20150330194
2015-11-19

Downhole Equipment Suspension and Power System Background

#386
20150330155
2015-11-19

Electromagnetic telemetry gap sub assembly with insulating collar

#387
20150325990
2015-11-12

METHOD AND CONDUIT FOR TRANSMITTING SIGNALS

#388
20150322731
2015-11-12

Centralizer for downhole probes

#389
20150322729
2015-11-12

Rod section and rod section system

#390
20150300141
2015-10-22

Method and System for Electrically Heating an Earth Formation

#391
20150300099
2015-10-22

Universal downhole probe system

#392
20150300097
2015-10-22

Magnetic switch and uses thereof in wellbores

#393
20150292274
2015-10-15

Apparatus and method for coaxially joining components to resist relative rotational and longitudinal movement

#394
20150273586
2015-10-01

Additive Manufacturing Process for Tubular with Embedded Electrical Conductors

#395
20150267507
2015-09-24

Systems and Methods for Downhole Electrical Switching

#396
20150267475
2015-09-24

ROTATING JETTING DEVICE AND ASSOCIATED METHODS TO ENHANCE OIL AND GAS RECOVERY

#397
20150252625
2015-09-10

Transmitting power within a wellbore

#398
20150247401
2015-09-03

Drilling system and electromagnetic telemetry tool with an electrical connector assembly and associated methods

#399
20150240568
2015-08-27

Electromagnetic directional coupler wired pipe transmission device

#400
20150226021
2015-08-13

Fibre composite rod petroleum well intervention cable

#401
20150211307
2015-07-30

EM gap sub assembly

#402
20150204187
2015-07-23

Reliable wired-pipe data transmission system

#403
20150204143
2015-07-23

Wired pipe erosion reduction

#404
20150197989
2015-07-16

UNDERWATER DRILLING RIG ASSEMBLY AND METHOD OF OPERATING THE UNDERWATER DRILLING RIG ASSEMBLY

#405
20150184468
2015-07-02

TRACTOR FOR INSTALLING TUBING ENCAPSULATED CABLE INTO COIL TUBING

#406
20150176346
2015-06-25

Method and system for wireline intervention in a subsea well from a floating vessel

#407
20150176341
2015-06-25

Tapered Spline Connection for Drill Pipe, Casing, and Tubing

#408
20150176339
2015-06-25

Drill string inground isolator in an MWD system and associated method

#409
20150152726
2015-06-04

Information transmission apparatus for logging while drilling

#410
20150144324
2015-05-28

Wired pipe and method of manufacturing wired pipe

#411
20150129241
2015-05-14

Cable having polymer with additive for increased linear pullout resistance

#412
20150129206
2015-05-14

System for monitoring linearity of down-hole pumping systems during deployment and related methods

#413
20150107900
2015-04-23

System and methods for selective shorting of an electrical insulator section

#414
20150101791
2015-04-16

Method and apparatus for installing and removing an electric submersible pump

#415
20150096744
2015-04-09

Power supply for wired pipe with rechargeable energy storage

#416
20150090444
2015-04-02

POWER SYSTEMS FOR WIRELINE WELL SERVICE USING WIRED PIPE STRING

#417
20150086718
2015-03-26

Lubricant application to threaded pipe connections

#418
20150083498
2015-03-26

ELECTRICAL CONDUCTOR SUBASSEMBLY AND METHOD OF USE

#419
20150070185
2015-03-12

Apparatus and method for drill pipe transmission line connections

#420
20150070112
2015-03-12

Rigid coaxial transmission line sections joined by connectors for use in a subterranean wellbore

#421
20150068738
2015-03-12

Apparatus, system and method for multi zone monitoring in boreholes

#422
20150041216
2015-02-12

Drill pipe

#423
20150041214
2015-02-12

Retention device for drill pipe transmission line

#424
20150029035
2015-01-29

Downhole surveying

#425
20150027685
2015-01-29

Shoulder ring for transmission line and transmission devices

#426
20150021905
2015-01-22

Method of making a composite tube to metal joint

#427
20150013963
2015-01-15

Insulating component

#428
20150000957
2015-01-01

Application and maintenance of tension to transmission line in pipe

#429
20140374167
2014-12-25

Electronics frame with shape memory seal elements

#430
20140367120
2014-12-18

Downhole fuel cell with steam adsorption and pressure compensation

#431
20140352941
2014-12-04

Transmission line for wired pipe

#432
20140338885
2014-11-20

Insulative coating processes for electromagnetic telemetry mandrels

#433
20140332272
2014-11-13

Insulated conductor for downhole drilling equipment and method

#434
20140326509
2014-11-06

Pipe in pipe BHA electric drive motor

#435
20140320301
2014-10-30

Downhole structure sections

#436
20140311804
2014-10-23

Isolation adapter for using multiple power sources in a bottom hole assembly

#437
20140311758
2014-10-23

Continuously Bonded Small-Diameter Cable With Electrical Return On Outer Wires

#438
20140305661
2014-10-16

Cable duct device in a swelling packer

#439
20140300485
2014-10-09

Method of non-intrusive communication of down hole annulus information

#440
20140291015
2014-10-02

Transmission line for wired pipe

#441
20140284065
2014-09-25

Tubular component for drill stem provided with a transmission sheath fixed by threadings, and method for installing said component

#442
20140265304
2014-09-18

Composite isolation joint for gap sub or internal gap

#443
20140262513
2014-09-18

Advanced drill string inground isolator housing in an MWD system and associated method

#444
20140246237
2014-09-04

Reliable downhole data transmission system

#445
20140238750
2014-08-28

Tubular drill stem component and method for tensioning a communication tube mounted in said component

#446
20140224481
2014-08-14

Method and device for supplying at least one electrical consumer of a drill pipe with an operating voltage

#447
20140217722
2014-08-07

Composite pipe to metal joint

#448
20140210634
2014-07-31

Down hole wireless data and power transmission system

#449
20140174825
2014-06-26

Drill string adapter and method for inground signal coupling

#450
20140174715
2014-06-26

Electromagnetic coupler

#451
20140153369
2014-06-05

Downhole low rate linear repeater relay network timing system and method

#452
20140144699
2014-05-29

Transmission line for wired pipe

#453
20140124217
2014-05-08

Method and apparatus for storing cable in a wellbore

#454
20140102806
2014-04-17

Tubular component for drill stem capable of being cabled, and method for mounting a cable in said component

#455
20140069719
2014-03-13

End termination for three-phase insulated conductors

#456
20140055279
2014-02-27

Methods and apparatus for transmission of telemetry data

#457
20140055278
2014-02-27

Drill string inground isolator in an MWD system and associated method

#458
20140049036
2014-02-20

Isolation ring on gap sub

#459
20140043115
2014-02-13

RF coaxial transmission line having a two-piece rigid outer conductor for a wellbore and related methods

#460
20130321165
2013-12-05

Signal and power transmission in hydrocarbon wells

#461
20130277067
2013-10-24

Coiled tubing triple-sealed penetrator and method

#462
20130233587
2013-09-12

Polymer-bonded metallic elements used as strength members, and/or power or data carriers in oilfield cables

#463
20130213639
2013-08-22

Milling well casing using electromagnetic pulse

#464
20130213128
2013-08-22

Multiple distributed force measurements

#465
20130186669
2013-07-25

Pipe and pipe assembly provided with layers of electrically conductive material for conveying substances

#466
20130180729
2013-07-18

RF applicator having a bendable tubular dielectric coupler and related methods

#467
20130133882
2013-05-30

Modular downhole tools and methods

#468
20130120154
2013-05-16

Multiple distributed sensors along a drillstring

#469
20130086803
2013-04-11

FORMING A TUBULAR AROUND INSULATED CONDUCTORS AND/OR TUBULARS

#470
20130062076
2013-03-14

Intervention device for use in a fluid exploitation well in the subsoil, and associated intervention assembly

#471
20130032411
2013-02-07

Methods of forming coatings upon wellbore tools

#472
20120318494
2012-12-20

Connecting head for connecting a cable and a downhole tool and associated intervention device

#473
20120285716
2012-11-15

Continuous communications conduit apparatus and method

#474
20120280492
2012-11-08

Composite drill pipe and method for forming same

#475
20120274477
2012-11-01

Reliable downhole data transmission system

#476
20120256759
2012-10-11

System and method for downhole telemetry

#477
20120217023
2012-08-30

Drill string adapter and method for inground signal coupling

#478
20120211244
2012-08-23

Top drive system

#479
20120181045
2012-07-19

Apparatus and method for controlling the connection and disconnection speed of downhole connectors

#480
20120176138
2012-07-12

Reliable wired-pipe data transmission system

#481
20120168160
2012-07-05

Swellable packer having a cable conduit

#482
20120160473
2012-06-28

Wired mud motor components, methods of fabricating the same, and downhole motors incorporating the same

#483
20120125686
2012-05-24

Method and system for transferring signals through a drill pipe system

#484
20120118634
2012-05-17

End termination for three-phase insulated conductors

#485
20120111634
2012-05-10

Earth boring apparatus

#486
20120111555
2012-05-10

Wired drill pipe with improved configuration

#487
20120098257
2012-04-26

Composite drill pipe and method for forming same

#488
20120094701
2012-04-19

Communication arrangement for transmission of communication signals along a pipe line

#489
20120090174
2012-04-19

Mechanical compaction of insulator for insulated conductor splices

#490
20120085564
2012-04-12

Hydroformed splice for insulated conductors

#491
20120080227
2012-04-05

Wireless transmission system and system for monitoring a drilling rig operation

#492
20120073804
2012-03-29

System for monitoring linearity of down-hole pumping systems during deployment and related methods

#493
20120018173
2012-01-26

Wellbore tool with exchangeable blades

#494
20110315444
2011-12-29

Apparatus and methods for corrosion protection of downhole tools

#495
20110309949
2011-12-22

Electromagnetic telemetry assembly with protected antenna

#496
20110309678
2011-12-22

Systems and methods for isolating current flow to well loads

#497
20110308807
2011-12-22

USE OF WIRED TUBULARS FOR COMMUNICATIONS/POWER IN AN IN-RISER APPLICATION

#498
20110297366
2011-12-08

Electrical jumper for a producing oil well

#499
20110290497
2011-12-01

Subsea hydrocarbon production system

#500
20110290476
2011-12-01

Well assembly coupling

#501
20110289994
2011-12-01

SYSTEM AND METHOD FOR STRAIGHTENING TUBING

#502
20110254695
2011-10-20

Tapered thread EM gap sub self-aligning means and method

#503
20110253447
2011-10-20

Multiple distributed force measurements

#504
20110240372
2011-10-06

Article of manufacture having a sub-surface friction stir welded channel

#505
20110182761
2011-07-28

STATOR FOR USE IN HELICOIDAL MOTOR

#506
20110170320
2011-07-14

Transmitting electric power into a bore hole

#507
20110108288
2011-05-12

Apparatus and method for controlling the connection and disconnection speed of downhole connectors

#508
20110108287
2011-05-12

Apparatus and method for controlling the connection and disconnection speed of downhole connectors

#509
20110108286
2011-05-12

Apparatus and Method for Controlling the Connection and Disconnection Speed of Downhole Connectors

#510
20110094729
2011-04-28

Electrical conduction across interconnected tubulars

#511
20110042072
2011-02-24

Method and system for using wireline configurable wellbore instruments with a wired pipe string

#512
20110032117
2011-02-10

Apparatus for receiving and transmitting signals in electromagnetic telemetry system used in a wellbore

#513
20110017334
2011-01-27

Wired conduit segment and method of making same

#514
20110011482
2011-01-20

Well tubings with polymer liners

#515
20100314096
2010-12-16

Routing an electrical signal past a downhole connection used for semi stiff wellbore intervention rod

#516
20100300698
2010-12-02

Wired slip joint

#517
20100300685
2010-12-02

Method and system for using wireline configurable wellbore instruments with a wired pipe string

#518
20100271233
2010-10-28

Surface communication apparatus and method for use with drill string telemetry

#519
20100264646
2010-10-21

STRUCTURES FOR WIRE ROUTING IN WIRED DRILL PIPE

#520
20100224409
2010-09-09

System and method of using a saver sub in a drilling system

#521
20100206561
2010-08-19

Apparatus and method for controlling the connection and disconnection speed of downhole connectors

#522
20100116550
2010-05-13

Interface and method for wellbore telemetry system

#523
20100071910
2010-03-25

METHOD AND SYSTEM FOR USING WELLBORE INSTRUMENTS WITH A WIRED PIPE STRING

#524
20100071188
2010-03-25

Wired drill pipe having conductive end connections

#525
20100065284
2010-03-18

Cable duct device in a swelling packer

#526
20100051264
2010-03-04

METHOD AND SYSTEM FOR MONITORING DOWNHOLE COMPLETION OPERATIONS

#527
20100007519
2010-01-14

Method and conduit for transmitting signals

#528
20090322553
2009-12-31

Electromagnetic wellbore telemetry system for tubular strings

#529
20090289808
2009-11-26

Reliable downhole data transmission system

#530
20090277652
2009-11-12

Swellable packer having a cable conduit

#531
20090260876
2009-10-22

Multiple distributed force measurements

#532
20090212970
2009-08-27

Wired tool string component

#533
20090173493
2009-07-09

INTERFACE AND METHOD FOR TRANSMITTING INFORMATION TO AND FROM A DOWNHOLE TOOL

#534
20090151934
2009-06-18

Top drive system

#535
20090151932
2009-06-18

Intelligent electrical power distribution system

#536
20090151926
2009-06-18

Inductive Power Coupler

#537
20090145660
2009-06-11

Method and system for fracturing subsurface formations during the drilling thereof

#538
20090101328
2009-04-23

COMPOSITE DRILL PIPE AND METHOD OF FORMING SAME

#539
20090090517
2009-04-09

Apparatus and method for electrical packer feedthrough

#540
20090065083
2009-03-12

Continuous communications conduit apparatus and method

#541
20090038848
2009-02-12

Peizoelectric generator particularly for use with wellbore drilling equipment

#542
20080261044
2008-10-23

RAPIDLY SELF-ASSEMBLED THIN FILMS AND FUNCTIONAL DECALS

#543
20080223569
2008-09-18

Centering assembly for an electric downhole connection

#544
20080179101
2008-07-31

Auger

#545
20080106433
2008-05-08

Method and conduit for transmitting signals

#546
20080099195
2008-05-01

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

#547
20080083529
2008-04-10

Downhole coils

#548
20080041575
2008-02-21

Electromagnetic wellbore telemetry system for tubular strings

#549
20080012569
2008-01-17

Downhole Coils

#550
20080007425
2008-01-10

Downhole Component with Multiple Transmission Elements

#551
20080003856
2008-01-03

Downhole data and/or power transmission system

#552
20070247329
2007-10-25

System and method for downhole telemetry

#553
20070247328
2007-10-25

System and method for downhole telemetry

#554
20070194948
2007-08-23

System and method for providing electrical power downhole

#555
20070181296
2007-08-09

Self-expandable cylinder in a downhole tool

#556
20070175663
2007-08-02

Measuring device and drilling device for deep drillings

#557
20070169929
2007-07-26

Method for bonding a transmission line to a downhole tool

#558
20070159351
2007-07-12

Method and conduit for transmitting signals

#559
20070151765
2007-07-05

Method and apparatus for horizontal drilling and oil recovery

#560
20070131412
2007-06-14

Mass Isolation Joint for Electrically Isolating a Downhole Tool

#561
20070102197
2007-05-10

Drill stem for deep drillings

#562
20070030167
2007-02-08

Surface communication apparatus and method for use with drill string telemetry

#563
20070029112
2007-02-08

Bidirectional drill string telemetry for measuring and drilling control

#564
20070023185
2007-02-01

Downhole Tool with Integrated Circuit

#565
20070018848
2007-01-25

Electrical connection assembly

#566
20070012436
2007-01-18

Cable duct device in a swelling packer

#567
20060289074
2006-12-28

Pipe with a canal in the pipe wall

#568
20060260801
2006-11-23

Wired tool string component

#569
20060260798
2006-11-23

Wired tool string component

#570
20060260797
2006-11-23

Downhole component with multiple transmission elements

#571
20060225926
2006-10-12

Method and conduit for transmitting signals

#572
20060220650
2006-10-05

Wellbore communication system

#573
20060175826
2006-08-10

Reinforcement for arched type structure with beveled screwed ends

#574
20060151211
2006-07-13

Transmitting electric power into a bore hole

#575
20060151179
2006-07-13

Apparatus and method for transmitting a signal in a wellbore

#576
20060124297
2006-06-15

System and method for communicating along a wellbore

#577
20060124291
2006-06-15

Auto-extending/retracting electrically isolated conductors in a segmented drill string

#578
20060082136
2006-04-20

Electrical isolation connector subassembly for use in directional drilling

#579
20060066102
2006-03-30

Composite drill pipe

#580
20060065444
2006-03-30

Filter for a drill string

#581
20060022840
2006-02-02

Communication system for down hole use

#582
20050284664
2005-12-29

Dual wall drill string assembly

#583
20050224228
2005-10-13

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

#584
20050200498
2005-09-15

Multiple distributed sensors along a drillstring

#585
20050194185
2005-09-08

Multiple distributed force measurements

#586
20050178562
2005-08-18

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

#587
20050173128
2005-08-11

Apparatus and method for routing a transmission line through a downhole tool

#588
20050167098
2005-08-04

Wellbore communication system

#589
20050145406
2005-07-07

Data transmission system for a downhole component

#590
20050118848
2005-06-02

Seal for coaxial cable in downhole tools

#591
20050115717
2005-06-02

Improved Downhole Tool Liner

#592
20050103527
2005-05-19

Dual wall drill string assembly

#593
20050098356
2005-05-12

Auto-extending/retracting electrically isolated conductors in a segmented drill string

#594
20050092499
2005-05-05

Drill string transmission line

#595
20050082092
2005-04-21

Apparatus in a drill string

#596
20050074988
2005-04-07

Electrical contact for downhole drilling networks

#597
20050070144
2005-03-31

Internal coaxial cable seal system

#598
20050068703
2005-03-31

Electromagnetic gap sub assembly

#599
20050067159
2005-03-31

Load-resistant coaxial transmission line

#600
20050046589
2005-03-03

Electromagnetic borehole telemetry system incorporating a conductive borehole tubular