ClassID:

135599

E21B43/101 - CPC Classification

Classification description:

Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells; Subsoil filtering; Setting of casings, screens, liners or the like in wells for underwater installations

Recent Application in this class:
#1
20240151122
2024-05-09

DOWNHOLE APPARATUS AND METHODS

#2
20230304705
2023-09-28

GEOTHERMAL POWER FROM SUPERHOT GEOTHERMAL FLUID AND MAGMA RESERVOIRS

#3
20230272947
2023-08-31

Geothermal power from superhot geothermal fluid and magma reservoirs

#4
20230272946
2023-08-31

Geothermal power from superhot geothermal fluid and magma reservoirs

#5
20230258057
2023-08-17

Systems and methods for wellbore liner installation under managed pressure conditions

#6
20230117664
2023-04-20

Downhole apparatus and methods

#7
20210025268
2021-01-28

Drilling casing and method of performing fast drilling and completion of large-borehole multilateral well

#8
20190292882
2019-09-26

Inlet-outlet system and method for subsea storage

#9
20190003293
2019-01-03

SYSTEMS AND METHODS FOR HYDRATE MANAGEMENT

#10
20180258727
2018-09-13

Running tool for tubing hanger

#11
20180223615
2018-08-09

Liner deployment assembly having full time debris barrier

#12
20180106140
2018-04-19

SYSTEMS AND METHODS FOR DETERMINING THE STRAIN EXPERIENCED BY WELLHEAD TUBULARS

#13
20180016874
2018-01-18

Inlet-outlet system and method for subsea storage

#14
20180010425
2018-01-11

Wellbore lining for natural gas hydrate and method of constructing a wellbore lining for natural gas hydrate

#15
20170370153
2017-12-28

PISTON ASSEMBLY TO REDUCE ANNULAR PRESSURE BUILDUP

#16
20170356265
2017-12-14

Arrangement for supporting a wellhead

#17
20170183941
2017-06-29

Outer casing string and method of installing same

#18
20160305225
2016-10-20

Lining of well bores with expandable and conventional liners

#19
20160069150
2016-03-10

Running tool with independent housing rotation sleeve

#20
20150259990
2015-09-17

Tubing hanger orientation spool

#21
20150184461
2015-07-02

Subsea drilling with casing

#22
20150060078
2015-03-05

Subsea drilling with casing

#23
20140224487
2014-08-14

Apparatus and methods of running casing in a dual gradient system

#24
20140034391
2014-02-06

Method and apparatus for drilling and lining a wellbore

#25
20130319677
2013-12-05

Well completion

#26
20130056282
2013-03-07

Running tool with independent housing rotation sleeve

#27
20120186821
2012-07-26

LOCATION-AND-ROTATION FEEDBACK TOOL FOR SUBSEA WELLHEADS AND METHOD OF OPERATING SAME

#28
20120018171
2012-01-26

Outer casing string and method of installing same

#29
20110214884
2011-09-08

Lining of well bores with expandable and conventional liners

#30
20110036588
2011-02-17

Systems and methods for running casing into wells drilled with dual-gradient mud systems

#31
20100243244
2010-09-30

Location-and-rotation feedback tool for subsea wellheads and method of operating same

#32
20100126776
2010-05-27

Subsea drilling with casing

#33
20100108322
2010-05-06

PARALLEL DRILLING AND COMPLETION FOR A DRY TREE FLOATING PRODUCTION FACILITY

#34
20090078466
2009-03-26

Apparatus and method for driving casing or conductor pipe

#35
20070199716
2007-08-30

Apparatus for connecting underwater tubular members

#36
20060237189
2006-10-26

Method of suspending, completing and working over a well

#37
20060042799
2006-03-02

Tubing running equipment for offshore rig with surface blowout preventer

#38
20060042791
2006-03-02

Tubing running equipment for offshore rig with surface blowout preventer

#39
20050152749
2005-07-14

Telescopic guide pipe for offshore drilling

#40
20050028980
2005-02-10

Method and apparatus of suspending, completing and working over a well

#41
17457680
2023-01-03

Systems and methods for casing drilling subsea wells

#42
17106745
2022-05-03

Method for guiding the direction of eversion of a flexible liner

#43
14995321
2017-06-06

Batch drilling using multiple mudline closure devices