ClassID:

135336

E21B19/002 - page 2 - 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 specially adapted for underwater drilling

Recent Application in this class:
#301
20090199757
2009-08-13

Vessel comprising a subsea equipment motion restraining and guidance system

#302
20090114443
2009-05-07

Anchored riserless mud return systems

#303
20090095485
2009-04-16

Tube buoyancy can system

#304
20090057011
2009-03-05

Drilling device

#305
20090056936
2009-03-05

Subsea Structure Load Monitoring and Control System

#306
20090044950
2009-02-19

Buoyancy tensioning systems for offshore marine risers and methods of use

#307
20090020061
2009-01-22

Connector for releasable connection between an anchorage in the form of a female part arranged on a floating means and a male part formed at the end of a retrievable umbilical

#308
20090000788
2009-01-01

Heave compensated snubbing system and method

#309
20080314579
2008-12-25

Method and system for inserting a fiber optical sensing cable into an underwater well

#310
20080308277
2008-12-18

Umbilical deployment system

#311
20080304916
2008-12-11

Pull-style tensioner system for a top-tensioned riser

#312
20080205992
2008-08-28

Soft stop for maximum riser tensioner stroke

#313
20080187401
2008-08-07

Riser tensioner for an offshore platform

#314
20080166186
2008-07-10

Ram style tensioner with fixed conductor and floating frame

#315
20080105463
2008-05-08

Apparatus for, and method of, landing items at a well location

#316
20080105432
2008-05-08

Apparatus for subsea intervention

#317
20080060568
2008-03-13

Floating lowering and lifting device

#318
20080031692
2008-02-07

Deck mounted pull riser tensioning system

#319
20080000685
2008-01-03

Triple activity drilling ship

#320
20070258775
2007-11-08

Means For Applying Tension To A Top Tension Riser

#321
20070251725
2007-11-01

Multiple activity rig

#322
20070196182
2007-08-23

External high pressure fluid reservoir for riser tensioner cylinder assembly

#323
20070181310
2007-08-09

System, method, and apparatus for sleeved tensioner rod with annular adhesive retention

#324
20070175639
2007-08-02

Method and a device for monitoring an/or controlling a load on a tensioned elongated element

#325
20070163782
2007-07-19

Dual-BOP and common riser system

#326
20070104031
2007-05-10

Navigation processor, a system comprising such a navigation processor and a method of controlling an underwater system by such a navigation processor

#327
20070089882
2007-04-26

Compensation system for a jacking frame

#328
20070056739
2007-03-15

System, method, and apparatus for a corrosion-resistant sleeve for riser tensioner cylinder rod

#329
20070034379
2007-02-15

Plug installation system for deep water subsea wells

#330
20060280560
2006-12-14

Riser tensioner with shrouded rods

#331
20060231264
2006-10-19

Riserless modular subsea well intervention, method and apparatus

#332
20060231263
2006-10-19

Riserless modular subsea well intervention, method and apparatus

#333
20060225891
2006-10-12

Apparatus for, and method of, landing items at a well location

#334
20060219412
2006-10-05

Subsea intervention fluid transfer system

#335
20060196671
2006-09-07

Heave compensation system for hydraulic workover

#336
20060191716
2006-08-31

Well drilling and production using a surface blowout preventer

#337
20060177275
2006-08-10

Vortex induced vibration optimizing system

#338
20060157236
2006-07-20

Blowout preventer stack landing assist tool

#339
20060124352
2006-06-15

Control systems and methods for active controlled bottomhole pressure systems

#340
20060108121
2006-05-25

Riser tensioner with lubricant reservoir

#341
20060078390
2006-04-13

Heave compensated snubbing system and method

#342
20050265789
2005-12-01

Automatic control methods for positioning the lower end of a filiform structure, notably an oil pipe, at sea

#343
20050152748
2005-07-14

Method for underwater transportation and installation or removal of objects at sea

#344
20050126790
2005-06-16

Method for using a multipurpose unit with multipurpose tower and a surface blow out preventer

#345
20050098349
2005-05-12

Control systems and methods for active controlled bottomhole pressure systems

#346
20050092522
2005-05-05

Underbalanced well drilling and production

#347
20050092497
2005-05-05

Blow out preventer transfer platform

#348
17748402
2023-01-03

Linkage test apparatus for deepwater drilling riser and hang-off system

#349
17717526
2023-04-11

Method and apparatus for removing or reinstalling riser pipes of a riser bundle

#350
17558785
2023-02-21

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

#351
16858831
2022-04-12

Method and apparatus for removing or reinstalling riser pipes of a riser bundle

#352
15853651
2020-04-28

Method and apparatus for removing or reinstalling riser pipes of a riser bundle

#353
15668750
2018-08-14

Subsea monitor system

#354
15363546
2018-03-27

Systems and methods for removing components of a subsea well

#355
15280832
2017-10-10

Extender jumper system and method

#356
15006255
2017-12-26

Method and apparatus for removing or reinstalling riser pipes of a riser bundle

#357
15002754
2017-06-06

Subsea multibore drilling and completion system

#358
14805074
2016-07-05

Vertical swivel connection assembly and systems and methods for use thereof

#359
14728755
2017-01-17

Collars for multiple tubulars

#360
14595950
2016-05-10

Subsea connector

#361
14287626
2016-01-26

Method and apparatus for removing or reinstalling riser pipes of a riser bundle