Patents-Review.com
ClassID:

135535 ⎘

E21B34/106 - CPC Classification

Classification description:

Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole retrievable, e.g. wire line retrievable, i.e. with an element which can be landed into a landing-nipple provided with a passage for control fluid the retrievable element being a secondary control fluid actuated valve landed into the bore of a first inoperative control fluid actuated valve

Recent Application in this class:
#1
20250154852
2025-05-15

SAFETY VALVE, METHOD, AND SYSTEM

 #2
20240337170
2024-10-10

High flow deepset insert safety valve

 #3
20240151118
2024-05-09

RELEASABLE DOWNHOLE COMPONENT FOR SUBTERRANEAN DEPLOYMENT ALONG A WELLBORE STRING

 #4
20220065073
2022-03-03

Apparatus and method for creating a fluid communication line in a downhole environment

 #5
20210189850
2021-06-24

Gas-lift system

 #6
20210025261
2021-01-28

Insert safety valve (variants)

 #7
20200190944
2020-06-18

Surface controlled wireline retrievable safety valve

 #8
20190249506
2019-08-15

Assembly and method for performing aligned operation with tool oriented in downhole tubular

 #9
20190093453
2019-03-28

Insert safety valve system

 #10
20190003277
2019-01-03

Provision of internal lines in a well tool

 #11
20180328145
2018-11-15

Bypass diverter sub for subsurface safety valves

 #12
20180306003
2018-10-25

DOWNHOLE APPARATUS AND METHOD

 #13
20180202261
2018-07-19

Mechanisms for transferring hydraulic control from a primary safety valve to a secondary safety valve

 #14
20180163487
2018-06-14

Tubing in tubing bypass

 #15
20180045003
2018-02-15

Hydraulic control of downhole tools

 #16
20180010425
2018-01-11

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

 #17
20160341016
2016-11-24

Flow conditioning flow control device

 #18
20150354316
2015-12-10

Control line sharing between a lower and an insert safety valve

 #19
20150275620
2015-10-01

Semi-autonomous insert valve for well system

 #20
20150167431
2015-06-18

Downhole apparatus and method

 #21
20150167430
2015-06-18

Downhole apparatus and method

 #22
20150167429
2015-06-18

Downhole apparatus and method

 #23
20150159469
2015-06-11

Downhole apparatus and method

 #24
20140290962
2014-10-02

Valve system

 #25
20130032356
2013-02-07

Electrically actuated insert safety valve

 #26
20120305256
2012-12-06

Valve system

 #27
20100096145
2010-04-22

Downhole safety valve apparatus and method

 #28
20090205832
2009-08-20

APPARATUS TO CLEAR CONTROL LINE IN WELL

 #29
20090114389
2009-05-07

Communication tool for accessing a non annular hydraulic chamber of a subsurface safety valve

 #30
20080230231
2008-09-25

Downhole safety valve apparatus and method

 #31
20080196891
2008-08-21

Communication tool and method for a subsurface safety valve with communication component

 #32
20080169106
2008-07-17

Method and apparatus for fluid bypass of a well tool

 #33
20070295511
2007-12-27

Access apparatus from a tubular into a downhole hydraulic control circuit and associated method

 #34
20070227738
2007-10-04

Communication tool for accessing a non annular hydraulic chamber of a subsurface safety valve

 #35
20070181305
2007-08-09

Downhole milling machine and method of use

 #36
20060113081
2006-06-01

Communication tool for accessing a non annular hydraulic chamber of a subsurface safety valve

 #37
20050098325
2005-05-12

Control system communication and lock open tool and method for locking open a safety valve and communicating with surface

 #38
20050056430
2005-03-17

Subsurface safety valve having a communication tool accessible non annular hydraulic chamber

 #39
20050056414
2005-03-17

Communication tool for accessing a non annular hydraulic chamber of a subsurface safety valve

 #40
18610964
2025-08-12

Deep set wireline retrievable safety valve