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Downhole apparatus and method
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Patent number 10,077,633
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Issue date Sep 18, 2018
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Petrowell Limited
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Daniel George Purkis
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E21 - EARTH DRILLING MINING
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Tubing section
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Patent number 9,702,231
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Issue date Jul 11, 2017
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Petrowell Limited
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Andrew Elrick
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E21 - EARTH DRILLING MINING
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Shifting tool
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Patent number 9,695,656
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Issue date Jul 4, 2017
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Petrowell Limited
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Oliver Webster
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E21 - EARTH DRILLING MINING
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Downhole detection
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Patent number 9,677,397
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Issue date Jun 13, 2017
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Petrowell Limited
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Hugh Clarkson
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E21 - EARTH DRILLING MINING
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Packer
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Patent number 9,562,411
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Issue date Feb 7, 2017
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Petrowell Limited
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Lee Mercer
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E21 - EARTH DRILLING MINING
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Selective fracturing system
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Patent number 9,416,643
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Issue date Aug 16, 2016
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Petrowell Limited
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Daniel George Purkis
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E21 - EARTH DRILLING MINING
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Valve assembly
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Patent number 9,200,501
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Issue date Dec 1, 2015
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Petrowell Limited
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Damien Gerard Patton
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Mechanical counter
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Patent number 9,194,197
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Issue date Nov 24, 2015
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Petrowell Limited
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Colin Smith
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E21 - EARTH DRILLING MINING
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Packer
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Patent number 9,194,213
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Issue date Nov 24, 2015
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Petrowell Limited
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Iain Macleod
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E21 - EARTH DRILLING MINING
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Tubing section coupling
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Patent number 9,133,968
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Issue date Sep 15, 2015
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Petrowell Limited
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Andrew John Elrick
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Running adapter
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Patent number 8,973,666
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Issue date Mar 10, 2015
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Petrowell Limited
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Daniel Purkis
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E21 - EARTH DRILLING MINING
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Control system
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Patent number 8,950,503
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Issue date Feb 10, 2015
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Petrowell Limited
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Daniel Purkis
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E21 - EARTH DRILLING MINING
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Centraliser
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Patent number 8,919,437
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Issue date Dec 30, 2014
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Petrowell Limited
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Iain MacLeod
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E21 - EARTH DRILLING MINING
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Tree plug
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Patent number 8,839,872
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Issue date Sep 23, 2014
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Petrowell Limited
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Daniel Purkis
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E21 - EARTH DRILLING MINING
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Flow control device
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Patent number 8,827,238
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Issue date Sep 9, 2014
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Petrowell Limited
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Frazer Geddes
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E21 - EARTH DRILLING MINING
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Centraliser
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Patent number 8,820,417
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Issue date Sep 2, 2014
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Petrowell Limited
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Steve Reid
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E21 - EARTH DRILLING MINING
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Activation device
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Patent number 8,689,864
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Issue date Apr 8, 2014
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Petrowell Limited
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Steve Reid
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E21 - EARTH DRILLING MINING
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Sealing system
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Patent number 8,678,099
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Issue date Mar 25, 2014
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Petrowell Limited
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Iain McLeod
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E21 - EARTH DRILLING MINING
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Expandable Slip System
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Publication number 20160251921
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Publication date Sep 1, 2016
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PETROWELL LIMITED
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Ian MacLeod
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E21 - EARTH DRILLING MINING
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DOWNHOLE COMMUNICATION
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Publication number 20160145999
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Publication date May 26, 2016
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Petrowell Limited
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Hugh Clarkson
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E21 - EARTH DRILLING MINING
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CHOKE
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Publication number 20160123112
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Publication date May 5, 2016
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PETROWELL LIMITED
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Daniel Purkis
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E21 - EARTH DRILLING MINING
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Actuating Apparatus
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Publication number 20160032690
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Publication date Feb 4, 2016
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PETROWELL LIMITED
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Damien Gerard Patton
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E21 - EARTH DRILLING MINING
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-
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Downhole Apparatus and Method
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Publication number 20150308229
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Publication date Oct 29, 2015
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PETROWELL LIMITED
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Damien Gerard Patton
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E21 - EARTH DRILLING MINING
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DOWNHOLE APPARATUS AND METHOD
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Publication number 20150285028
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Publication date Oct 8, 2015
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Petrowell Limited
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Alan Craigon
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E21 - EARTH DRILLING MINING
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FLOW CONTROL ASSEMBLY
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Publication number 20150252652
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Publication date Sep 10, 2015
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Petrowell Limited
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Euan Murdoch
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E21 - EARTH DRILLING MINING
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WELL ISOLATION
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Publication number 20150240628
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Publication date Aug 27, 2015
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Petrowell Limited
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Daniel George Purkis
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E21 - EARTH DRILLING MINING
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DOWNHOLE APPARATUS AND METHOD
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Publication number 20150167429
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Publication date Jun 18, 2015
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Petrowell Limited
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Daniel George Purkis
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E21 - EARTH DRILLING MINING
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DOWNHOLE APPARATUS AND METHOD
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Publication number 20150167430
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Publication date Jun 18, 2015
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Petrowell Limited
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Daniel George Purkis
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E21 - EARTH DRILLING MINING
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DOWNHOLE APPARATUS AND METHOD
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Publication number 20150167431
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Publication date Jun 18, 2015
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Petrowell Limited
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Daniel George Purkis
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E21 - EARTH DRILLING MINING
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DOWNHOLE APPARATUS AND METHOD
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Publication number 20150159469
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Publication date Jun 11, 2015
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Petrowell Limited
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Daniel George Purkis
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E21 - EARTH DRILLING MINING
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Centraliser
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Publication number 20150122509
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Publication date May 7, 2015
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PETROWELL LIMITED
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Iain MacLeod
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E21 - EARTH DRILLING MINING
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Seal Element
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Publication number 20150053395
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Publication date Feb 26, 2015
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PETROWELL LIMITED
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Lee Mercer
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E21 - EARTH DRILLING MINING
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Wellbore Completion
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Publication number 20150053408
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Publication date Feb 26, 2015
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PETROWELL LIMITED
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Daniel George Purkis
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E21 - EARTH DRILLING MINING
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Downhole Tool and Method
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Publication number 20150034329
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Publication date Feb 5, 2015
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PETROWELL LIMITED
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Andrew McGeoch
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E21 - EARTH DRILLING MINING
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Downhole Tool and Method
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Publication number 20140224504
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Publication date Aug 14, 2014
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PETROWELL LIMITED
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Andrew McGeoch
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E21 - EARTH DRILLING MINING
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Downhole Actuating Apparatus
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Publication number 20140224475
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Publication date Aug 14, 2014
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PETROWELL LIMITED
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Colin Smith
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E21 - EARTH DRILLING MINING
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Packer
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Publication number 20140116680
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Publication date May 1, 2014
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PETROWELL LIMITED
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Lee Mercer
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E21 - EARTH DRILLING MINING
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Selective Fracturing System
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Publication number 20140102708
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Publication date Apr 17, 2014
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PETROWELL LIMITED
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Daniel George Purkis
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E21 - EARTH DRILLING MINING
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Centraliser
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Publication number 20140014370
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Publication date Jan 16, 2014
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PETROWELL LIMITED
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Iain MacLeod
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E21 - EARTH DRILLING MINING
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VALVE ASSEMBLY
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Publication number 20130248030
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Publication date Sep 26, 2013
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PETROWELL LIMITED
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Damien Gerard Patton
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E21 - EARTH DRILLING MINING
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Mechanical Counter
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Publication number 20130186644
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Publication date Jul 25, 2013
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PETROWELL LIMITED
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Colin Smith
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E21 - EARTH DRILLING MINING