Patents-Review.com
ClassID:

135644 ⎘

E21B43/248 - CPC Classification

Classification description:

Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells; Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection; Combustion in association with fracturing processes or crevice forming processes using explosives

Recent Application in this class:
#1
20250334035
2025-10-30

WELL SELECTION METHODOLOGY FOR THE DEPLOYMENT OF IN-SITU SHOCK WAVE STIMULATION PROCESSES IN CARBONATE RESERVOIRS

 #2
20250270911
2025-08-28

Oil Production System and Method

 #3
20250243739
2025-07-31

Systems and Methods of Initiating Energetic Reactions for Reservoir Stimulation

 #4
20240401450
2024-12-05

BOOSTING WELL PERFORMANCE IN GEOTHERMAL SYSTEMS

 #5
20240151129
2024-05-09

Systems and methods of initiating energetic reactions for reservoir stimulation

 #6
20240110465
2024-04-04

Cracking permeability increasing method combining hydraulic fracturing and methane in-situ combustion explosion

 #7
20240093581
2024-03-21

Oil Production System and Method

 #8
20220290542
2022-09-15

Fracturing of a deep or wet well utilizing an air/fuel mixture and multiple stage restriction orifice assembly

 #9
20220195854
2022-06-23

Oil production system and method

 #10
20210277759
2021-09-09

Fracturing of a wet well utilizing an air/fuel mixture

 #11
20210207466
2021-07-08

Systems and methods of initiating energetic reactions for reservoir stimulation

 #12
20200011166
2020-01-09

Fracturing utilizing an air/fuel mixture

 #13
20190368327
2019-12-05

Fracturing treatments in subterranean formation using inorganic cements and electrically controlled propellants

 #14
20190353018
2019-11-21

Method and systems for perforating and fragmenting sediments using blasting material

 #15
20190271219
2019-09-05

METHODS FOR THE ENHANCEMENT AND STIMULATION OF OIL AND GAS PRODUCTION IN SHALES

 #16
20190186251
2019-06-20

Ignition device for underground coal gasification process, and applications thereof

 #17
20190153845
2019-05-23

System and method of delivering stimulation treatment by means of gas generation

 #18
20190153844
2019-05-23

Systems and methods of initiating energetic reactions for reservoir stimulation

 #19
20180266225
2018-09-20

Method and system for perforating and fragmenting sediments using blasting material

 #20
20180149007
2018-05-31

Fracturing utilizing an air/fuel mixture

 #21
20170204713
2017-07-20

Method for the enhancement and stimulation of oil and gas production in shales

 #22
20170198560
2017-07-13

Multi-phasic explosive fracturing system

 #23
20160341018
2016-11-24

Method for the enhancement of injection activities and stimulation of oil and gas production

 #24
20160084055
2016-03-24

Downhole stimulation tools and related methods of stimulating a producing formation

 #25
20140034304
2014-02-06

METHOD FOR EXTRACTING HYDROCARBON COMPOUNDS, ESPECIALLY CRUDE OIL, FROM UNDERGROUND OIL SANDS DEPOSITS

 #26
20130000908
2013-01-03

System and method for fracturing rock in tight reservoirs

 #27
20110259230
2011-10-27

Electrode ignition and control of electrically ignitable materials

 #28
20100132946
2010-06-03

Method for the Enhancement of Injection Activities and Stimulation of Oil and Gas Production

 #29
20070240880
2007-10-18

Sub-surface coalbed methane well enhancement through rapid oxidation

 #30
20070095529
2007-05-03

Reactive stimulation of oil and gas wells