Patents-Review.com
ClassID:

135424 ⎘

E21B25/16 - CPC Classification

Classification description:

Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors for obtaining oriented cores

Recent Application in this class:
#1
20260063010
2026-03-05

CORE BARREL HEAD ASSEMBLY WITH AN INTEGRATED SAMPLE ORIENTATION TOOL AND SYSTEM FOR USING SAME

 #2
20250250874
2025-08-07

DEVICES FOR MARKING A CORE SAMPLE

 #3
20240352818
2024-10-24

ORIENTING PROCESSING DEVICE, ORIENTING ASSISTANCE METHOD, AND PROGRAM

 #4
20240183239
2024-06-06

Core Barrel Head Assembly With An Integrated Sample Orientation Tool And System For Using Same

 #5
20230374899
2023-11-23

METHOD AND SYSTEM FOR DETERMINING CORE ORIENTATION

 #6
20230167737
2023-06-01

Method and system for enabling at surface core orientation data transfer

 #7
20230124651
2023-04-20

CORE BARREL HEAD ASSEMBLY WITH AN INTEGRATED SAMPLE ORIENTATION TOOL AND SYSTEM FOR USING SAME

 #8
20230097663
2023-03-30

DEVICE AND SYSTEM FOR ORIENTING CORE SAMPLES

 #9
20230082354
2023-03-16

Tool, system and method for orienting core samples during borehole drilling

 #10
20230048917
2023-02-16

METHOD AND SYSTEM FOR ENABLING ACQUISITION OF BOREHOLE SURVEY DATA AND CORE ORIENTATION DATA

 #11
20220316293
2022-10-06

Orienting geologic core samples

 #12
20220120177
2022-04-21

Coring while drilling

 #13
20220106871
2022-04-07

Methodology for automated verification and qualification of sidewall core recovery depth using borehole image logs

 #14
20220010640
2022-01-13

Long-distance core drilling method suitable for a horizontal geological core drilling rig

 #15
20210222541
2021-07-22

METHOD AND SYSTEM FOR DETERMINING CORE ORIENTATION

 #16
20210079784
2021-03-18

CORE SAMPLE ORIENTATION

 #17
20210062600
2021-03-04

Core barrel head assembly with an integrated sample orientation tool and system for using same

 #18
20200392835
2020-12-17

Method and system for enabling at surface core orientation data transfer

 #19
20200355590
2020-11-12

System for measuring mechanical properties of sea floor sediments at full ocean depths

 #20
20200024921
2020-01-23

Core barrel head assembly with an integrated sample orientation tool and system for using same

 #21
20190145246
2019-05-16

CORE SAMPLE ORIENTATION

 #22
20190071944
2019-03-07

Downhole surveying and core sample orientation systems, devices and methods

 #23
20190040735
2019-02-07

METHOD AND SYSTEM FOR ENABLING AT SURFACE CORE ORIENTATION DATA TRANSFER

 #24
20190024468
2019-01-24

Method and system for enabling acquisition of borehole survey data and core orientation data

 #25
20190010802
2019-01-10

CORE SAMPLE ORIENTATION

 #26
20180363398
2018-12-20

Downhole surveying and core sample orientation systems, devices and methods

 #27
20180305995
2018-10-25

Core barrel head assembly with an integrated sample orientation tool and system for using same

 #28
20180112483
2018-04-26

Downhole surveying and core sample orientation systems, devices and methods

 #29
20180073316
2018-03-15

Use of pre-stressed steel strand in the procedure of multi-angle drilling coring

 #30
20170306713
2017-10-26

Device and system for use in monitoring coring operations

 #31
20170022802
2017-01-26

CORE SAMPLE ORIENTATION

 #32
20170002654
2017-01-05

Coring Apparatus and methods to use the same

 #33
20160341036
2016-11-24

Coring tools and related methods

 #34
20160032672
2016-02-04

CORE SAMPLE ORIENTATION

 #35
20150300162
2015-10-22

Core barrel head assembly with an integrated sample orientation tool and system for using same

 #36
20150247369
2015-09-03

Core Lifter Assembly

 #37
20150226016
2015-08-13

Core barrel and related drilling apparatus and method

 #38
20150211313
2015-07-30

CORE SAMPLE ORIENTATION

 #39
20150197999
2015-07-16

Impregnated drill bits with integrated reamers

 #40
20150136488
2015-05-21

Downhole surveying and core sample orientation systems, devices and methods

 #41
20150068809
2015-03-12

Coring tool including core bit and drilling plug with alignment and torque transmission apparatus and related methods

 #42
20140375468
2014-12-25

Equipment and methods for downhole surveying and data acquisition for a drilling operation

 #43
20140374158
2014-12-25

CORE SAMPLE ORIENTATION

 #44
20140291034
2014-10-02

Coring apparatus and methods to use the same

 #45
20140238743
2014-08-28

CORE SAMPLE ORIENTATION

 #46
20140102794
2014-04-17

Core orientation systems and methods

 #47
20140076634
2014-03-20

Coring tools and related methods

 #48
20140034389
2014-02-06

CORE SAMPLE ORIENTATION

 #49
20130081879
2013-04-04

Downhole coring tools and methods of coring

 #50
20130025938
2013-01-31

CORE SAMPLE ORIENTATION

 #51
20130008719
2013-01-10

Coring tools and related methods

 #52
20120273279
2012-11-01

Core Barrel and Related Drilling Apparatus and Method

 #53
20120061146
2012-03-15

Impregnated drill bits with integrated reamers

 #54
20120037421
2012-02-16

MODULAR CORE ORIENTATION SYSTEM

 #55
20120031681
2012-02-09

Downhole tool housing

 #56
20120018220
2012-01-26

CORE SAMPLE ORIENTATION

 #57
20120000711
2012-01-05

Coring apparatus and methods to use the same

 #58
20110094801
2011-04-28

Coring apparatus and methods to use the same

 #59
20110088948
2011-04-21

CORE SAMPLE ORIENTATION

 #60
20100230165
2010-09-16

Orientation head

 #61
20090314545
2009-12-24

CORE SAMPLE ORIENTATION

 #62
20090071716
2009-03-19

CORE ORIENTATION DETERMINATION

 #63
20070282533
2007-12-06

Core sample orientation

 #64
20070017707
2007-01-25

One-step directional coring or drilling system

 #65
20050167158
2005-08-04

One-step directional coring or drilling system

 #66
20050034894
2005-02-17

Orientation device for a core sample

 #67
18132981
2023-12-26

Horizontal sampling soil drilling rig and control method thereof

 #68
17117486
2022-02-22

Multifunctional directional wireline core drilling device