ClassID:

135296

E21B17/025 - CPC Classification

Classification description:

Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings Cables; ; Tubings; Couplings; joints; Arrangements for connecting cables or wirelines to downhole devices Side entry subs

Recent Application in this class:
#1
20250092742
2025-03-20

DOWNHOLE ROTARY SLIP RING JOINT TO ALLOW ROTATION OF ASSEMBLIES WITH THREE OR MORE CONTROL LINES

#2
20240376787
2024-11-14

Well tool pressure compensating system and method

#3
20220412184
2022-12-29

DOWNHOLE PACKER SUITABLE FOR SMART WELL COMPLETION

#4
20220333463
2022-10-20

Downhole rotary slip ring joint to allow rotation of assemblies with three or more control lines

#5
20220333447
2022-10-20

Downhole rotary slip ring joint to allow rotation of assemblies with multiple control lines

#6
20220333445
2022-10-20

DOWNHOLE ROTARY SLIP RING JOINT TO ALLOW ROTATION OF ASSEMBLIES WITH ELECTRICAL AND FIBER OPTIC CONTROL LINES

#7
20210207475
2021-07-08

METHOD FOR PACKAGING COMPONENTS, ASSEMBLIES AND MODULES IN DOWNHOLE TOOLS

#8
20210140246
2021-05-13

Method and apparatus for sealing a side pocket mandrel

#9
20200040672
2020-02-06

METHOD AND SYSTEM FOR PIPE CONVEYED LOGGING

#10
20190265373
2019-08-29

Earth model generation via measurements

#11
20190128109
2019-05-02

Intelligent well system

#12
20190071939
2019-03-07

Method and system for pipe conveyed logging

#13
20170211339
2017-07-27

Orthogonal electrical connector penetrator system for coiled tubing electrical service in a flow-through multi-bowled wellhead and method of installation and use

#14
20160258229
2016-09-08

Multiple control line travel joint with injection line capability

#15
20160123140
2016-05-05

Oilfield operation using a drill string

#16
20160024854
2016-01-28

Side-exit motor cable connections

#17
20130309888
2013-11-21

Metal encased cable power delivery system for downhole pumping or heating systems

#18
20130292139
2013-11-07

Cable bypass and method for controlled entry of a tubing string and a cable adjacent thereto

#19
20130068465
2013-03-21

Methods and systems for circulating fluid within the annulus of a flexible pipe riser

#20
20120305315
2012-12-06

Oilfield operation using a drill string

#21
20120052721
2012-03-01

High temperature pothead

#22
20110174503
2011-07-21

Method and apparatus for installing a wireline for logging or other operations in an under-balanced well

#23
20110174501
2011-07-21

Cable bypass and method for controlled entry of a tubing string and a cable adjacent thereto

#24
20110056681
2011-03-10

Method and apparatus for performing wireline logging operations in an under-balanced well

#25
20090205832
2009-08-20

APPARATUS TO CLEAR CONTROL LINE IN WELL

#26
20080230216
2008-09-25

Wireline entry sub

#27
20080142212
2008-06-19

System and method for sensing a parameter in a wellbore

#28
20070199718
2007-08-30

Entry swivel apparatus and method

#29
20070137867
2007-06-21

Side entry apparatus and method

#30
20070137864
2007-06-21

Side entry apparatus and method

#31
20070095544
2007-05-03

Side entry apparatus and method

#32
20070056722
2007-03-15

Wireline entry sub and method of using

#33
20070012453
2007-01-18

Optical sensor use in alternate path gravel packing with integral zonal isolation

#34
20060065405
2006-03-30

Method for installing a water well pump

#35
20050279512
2005-12-22

Side entry apparatus and method

#36
20050211443
2005-09-29

Articulated drillstring entry apparatus and method

#37
20050133227
2005-06-23

Side entry sub hydraulic wireline cutter and method

#38
20050077050
2005-04-14

Installation of downhole electrical power cable and safety valve assembly

#39
20050039924
2005-02-24

Method for installing a water well pump