ClassID:

135370

E21B19/22 - page 3 - CPC Classification

Classification description:

Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables Handling reeled pipe or rod units, e.g. flexible drilling pipes

Recent Application in this class:
#601
20070068678
2007-03-29

Equipment for installing a spoolable connector in coiled tubing

#602
20070062707
2007-03-22

Apparatus and method to connect two parts without rotation

#603
20070017670
2007-01-25

Gripper assembly for downhole tools

#604
20070000670
2007-01-04

Method and apparatus for installing strings of coiled tubing

#605
20060289171
2006-12-28

Coiled tubing/top drive rig and method

#606
20060289170
2006-12-28

Coiled tubing/top drive rig and method

#607
20060283633
2006-12-21

Method and apparatus for conducting earth borehole operations using coiled casing

#608
20060283605
2006-12-21

Coiled tubing transport system and method

#609
20060283588
2006-12-21

System, method and apparatus for conducting earth borehole operations

#610
20060283587
2006-12-21

System, method and apparatus for conducting earth borehole operations

#611
20060273213
2006-12-07

Level-wind system for coiled tubing

#612
20060266528
2006-11-30

Balanced continuous well string injection unit

#613
20060260844
2006-11-23

Coiled tubing drilling rig

#614
20060254781
2006-11-16

Deep-well, continuous-coiled-tubing apparatus and method of use

#615
20060254780
2006-11-16

Variable size coil tubing gripping elements

#616
20060248743
2006-11-09

Coiled tubing counter

#617
20060243453
2006-11-02

Tubing connector

#618
20060231268
2006-10-19

Apparatus and method for performing earth borehole operations

#619
20060207767
2006-09-21

SUPPORT APPARATUS FOR A LUBRICATOR IN A COIL TUBING OPERATION

#620
20060201716
2006-09-14

Gripper assembly for downhole tools

#621
20060163415
2006-07-27

Method and a device for automated control of coil pipe operations

#622
20060137884
2006-06-29

System, method and apparatus for securing control lines to a well pipe

#623
20060124352
2006-06-15

Control systems and methods for active controlled bottomhole pressure systems

#624
20060124314
2006-06-15

Assembly and method for intervention of a subsea well

#625
20060108122
2006-05-25

Top feed of control lines to a reciprocating spider

#626
20060096754
2006-05-11

Apparatus and method for injecting tubing into a well

#627
20060090901
2006-05-04

Arm for moving flexible lines at a well site

#628
20060081368
2006-04-20

Tubing injector for variable diameter tubing

#629
20060076148
2006-04-13

Well string injection system and method

#630
20060065407
2006-03-30

Apparatus and method for handling umbilical or control lines for tubing of a well

#631
20060065404
2006-03-30

Arm for moving flexible lines at a well site

#632
20060054315
2006-03-16

Coiled tubing vibration systems and methods

#633
20060048933
2006-03-09

Method and apparatus for spooled tubing operations

#634
20060032638
2006-02-16

Apparatus and methods of setting and retrieving casing with drilling latch and bottom hole assembly

#635
20060027373
2006-02-09

Drilling rig apparatus and downhole tool assembly system and method

#636
20060000619
2006-01-05

Method and apparatus for drilling and servicing subterranean wells with rotating coiled tubing

#637
20050274527
2005-12-15

Apparatus and method for dewatering low pressure gradient gas wells

#638
20050247456
2005-11-10

Coiled tubing injector deployment assembly and method

#639
20050247455
2005-11-10

Hydraulic circuit and method for operating a gripping device

#640
20050247454
2005-11-10

Apparatus and method for injecting tubing in a well bore

#641
20050224224
2005-10-13

Subsea coiled tubing injector with pressure compensation

#642
20050211430
2005-09-29

Multi-purpose coiled tubing handling system

#643
20050205267
2005-09-22

Coil tubing injector for injecting tubings of various diameters

#644
20050199400
2005-09-15

Apparatus and method for supporting structures on offshore platforms

#645
20050183862
2005-08-25

Method and apparatus for installing control lines in a well

#646
20050161230
2005-07-28

Control line guide and method of using same

#647
20050161225
2005-07-28

Control line manipulating arm and method of using same

#648
20050133228
2005-06-23

Tubular injector apparatus and method of use

#649
20050109724
2005-05-26

Floating lifting device

#650
20050098349
2005-05-12

Control systems and methods for active controlled bottomhole pressure systems

#651
20050093340
2005-05-05

Elevating operator cabin for coiled tubing injector

#652
20050082064
2005-04-21

Hybrid coiled tubing/fluid pumping unit

#653
20050082055
2005-04-21

Gripper assembly for downhole tools

#654
20050039926
2005-02-24

Tubing injector

#655
20050039925
2005-02-24

Downhole ball drop tool

#656
20050023404
2005-02-03

Deep-well, continuous-coiled-tubing apparatus and method of use

#657
19260856
2026-06-02

Jack assembly with anti-retraction assembly and associated methods

#658
19186696
2026-03-24

Coiled tubing units and systems for subterranean wellbore operations

#659
18924653
2026-02-24

Coiled tubing dimpling tools

#660
18623596
2024-11-26

Constant load clamping apparatus of injector head of coiled tubing drilling machine and design method thereof

#661
18425479
2025-07-29

Sleeve assemblies for coiled tubing

#662
18410870
2025-01-28

Fiber-safe single-run perforating gun

#663
18399361
2025-01-28

Coiled tubing reel having a coiled tubing exit opening extending through a sidewall thickness (t) of the flange

#664
18399327
2025-03-25

Coiled tubing deployment/retrieval apparatus employing multiple tubing guides and a method of use thereof

#665
18332053
2025-08-12

Rotating gin pole

#666
18207098
2024-07-23

Riserless subsea coiled tubing intervention automation

#667
18147876
2023-10-10

Subsea coiled tubing drilling system and subsea drilling device thereof

#668
17938625
2024-02-20

Coiled tubing snap arrestor

#669
17821538
2023-05-30

Coiled tubing injector with reactive chain tension

#670
17819645
2023-04-11

Deepwater subsea coiled tubing drilling rig

#671
17558785
2023-02-21

Method and apparatus for positioning of injector heads and other intervention equipment

#672
17517959
2023-01-31

Gripper control in a coiled tubing system

#673
17185356
2025-05-06

Dual-packer injection leaching system and method

#674
17038247
2022-01-25

Open water coiled tubing control system

#675
16140050
2019-06-25

Coiled tubing unit

#676
16140024
2019-06-04

Coiled tubing reel and coiled tubing vehicle

#677
15891063
2020-09-29

Jointed pipe injector

#678
15363546
2018-03-27

Systems and methods for removing components of a subsea well

#679
15256251
2017-11-07

Subsea drilling systems and methods

#680
15190702
2017-06-27

Clutch mechanism

#681
14855062
2019-09-03

System for injecting coiled tubing

#682
14802814
2015-12-08

Controlling cable spooling systems

#683
14698815
2016-04-19

Coiled tubing injector handler

#684
14639467
2015-07-07

Coil tubing injector using linear bearings

#685
14018093
2014-05-27

Method and apparatus for axially displacing coiled tubing while minimizing fatigue