ClassID:

135609

E21B43/118 - CPC Classification

Classification description:

Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells; Perforators; Permeators; Gun or shaped-charge perforators characterised by lowering in vertical position and subsequent tilting to operating position

Recent Application in this class:
#1
20240401441
2024-12-05

ORIENTABLE PERFORATING GUN WITH ORIENTING BEARING ASSEMBLY AND METHOD OF USING SAME

#2
20240287886
2024-08-29

PENETRATOR AND DISPENSERS AND METHODS OF USE

#3
20240068346
2024-02-29

Penetrator and dispensers and methods of use

#4
20230212927
2023-07-06

Perforating Gun With Self-Orienting Perforating Charges

#5
20200088187
2020-03-19

Linear hydraulic pump and its application in well pressure control

#6
20190368320
2019-12-05

Downhole perforator having reduced fluid clearance

#7
20190264548
2019-08-29

Rotating loading tube and angled shaped charges for oriented perforating

#8
20190153829
2019-05-23

Device and method for angularly orientating wellbore perforating guns

#9
20180320491
2018-11-08

Method of creating and finishing perforations in a hydrocarbon well

#10
20180119529
2018-05-03

Apparatus for electromechanically connecting a plurality of guns for well perforation

#11
20170321687
2017-11-09

Linear hydraulic pump and its application in well pressure control

#12
20170058648
2017-03-02

EFP detonating cord

#13
20160376878
2016-12-29

Projectile tool with rotatable blades

#14
20160245625
2016-08-25

Scintered powder metal shaped charges

#15
20150292306
2015-10-15

Venting system for a shaped charge in the event of deflagration

#16
20140231065
2014-08-21

Perforating safety system and assembly

#17
20120138286
2012-06-07

Perforating safety system and assembly

#18
20110056691
2011-03-10

Scintered powder metal shaped charges

#19
20080134925
2008-06-12

Shaped charge assembly and method of damaging a target

#20
19050876
2026-02-10

Discrete perforating device

#21
18410870
2025-01-28

Fiber-safe single-run perforating gun

#22
14599069
2015-08-25

Externally-orientated internally-corrected perforating gun system and method

#23
14585956
2018-07-17

Method of creating and finishing perforations in a hydrocarbon well