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2023
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Invention
|
Slimline stop collar with seal to prevent micro-annulus leakage. A stop collar for mounting to a ... |
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2022
|
Invention
|
Variable stiffness centralizer. A centralizer for use in a wellbore includes a body for disposing... |
|
2021
|
Invention
|
Slimline stop collar with solid cam ring. A stop collar for mounting to a downhole tubular includ... |
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2020
|
Invention
|
Toe valve with vented atmospheric chamber. A toe valve for use in a wellbore includes: a tubular ... |
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2019
|
P/S
|
Casing accessories and components of metal for use in oil and gas exploration specifically metal ... |
|
|
P/S
|
Casing accessories and components of metal for use in oil and gas exploration, drilling of bore h... |
|
|
P/S
|
Wellbore centralizers and centralizer stop collars for use
in oil and gas exploration, drilling ... |
|
|
P/S
|
Metal casing accessories and components for use in oil and
gas exploration, drilling of bore hol... |
|
|
P/S
|
Wellbore centralizers and centralizer stop collars for use in oil and gas exploration, drilling o... |
|
|
P/S
|
Casing accessories and components for use in oil and gas
exploration, drilling of bore holes and... |
|
|
Invention
|
Slimline stop collar. A stop collar for mounting to a downhole tubular includes: a cylindrical ho... |
|
|
Invention
|
Centralizer having atmospheric chamber for expansion in response to hydrostatic pressure.
A cent... |
|
|
Invention
|
Centralizer having atmospheric chamber for expansion in response to hydrostatic pressure. A centr... |
|
|
Invention
|
Overpressure toe valve with atmospheric chamber. A toe valve for use in a wellbore includes: a tu... |
|
|
Invention
|
Guide shoe with lockable nose. A guide shoe (1), adapted for connection to an end of a tubular fo... |
|
|
Invention
|
Deployable casing centraliser with latch for bow springs.
A centraliser for use in a wellbore in... |
|
|
Invention
|
Deployable casing centraliser with latch for bow springs. A centraliser for use in a wellbore inc... |
|
|
Invention
|
Resettable toe valve. A toe valve to control the injection of fluid into a toe of an oil or gas w... |
|
2018
|
P/S
|
Cable protectors made of metal for use in the oil and gas industry, namely, clamps, collars, coup... |
|
|
Invention
|
Centraliser.
A centraliser comprises two collars that are connected by asymmetric spring bows. T... |
|
|
P/S
|
Metal casing accessories and components for use in oil and gas exploration, drilling of bore hole... |
|
|
P/S
|
Casing accessories and components for use in in oil and gas exploration, drilling of bore holes a... |
|
|
Invention
|
Tubing shoe |
|
2017
|
P/S
|
Metal tubular goods; pipes and tubes of metal; centralisers
and centraliser locks; centralisers ... |
|
|
P/S
|
Metal oilfield tubular goods; pipes and tubes of metal; centralisers and centraliser locks; centr... |
|
|
P/S
|
Metal casing shoes; metal guide shoes for oilfield tubular goods; metal cement shoes for oilfield... |
|
2015
|
P/S
|
Centralisers; casing centralisers; centraliser positioning devices and locks; parts and fittings ... |
|
|
Invention
|
Centraliser. A centralizer comprises two collars that are connected by asymmetric spring bows. Th... |
|
|
Invention
|
Centraliser. A centraliser comprises two collars that are connected by asymmetric spring bows. Th... |
|
2012
|
Invention
|
Centraliser |
|
|
Invention
|
Centraliser. A centralizer includes a body having a bore with an axis, the bore being configured ... |
|
|
Invention
|
Centraliser. A centraliser is disclosed for an oil, gas or water well, the centraliser having a b... |
|
2010
|
Invention
|
Tubing shoe. A tubing shoe is disclosed with a body adapted to be connected to a section of tubin... |
|
2005
|
Invention
|
Downhole apparatus for mobilising drill cuttings.
Apparatus for mobilising drill cuttings in a w... |
|
2003
|
Invention
|
Cement flow control tool. An apparatus for controlling the flow of fluid into a borehole through ... |
|
|
Invention
|
Slotted expandable centraliser. This invention relates to a slotted expandable centraliser. In pr... |
|
2002
|
Invention
|
Centraliser. A centraliser primarily for use when casing an oil or gas well, the centraliser havi... |
|
|
P/S
|
Metal tubular goods; pipes and tubes of metal; centralisers and centraliser locks; centralisers a... |
|
|
P/S
|
[ PIPES AND TUBES OF METAL; CENTRALISERS AND CENTRALISER LOCKS; CENTRALISERS AND CENTRALISER LOCK... |
|
|
Invention
|
Downhole tool. A tubing shoe (30) comprising: a body (32) for mounting on the end of a tubing str... |
|
2001
|
Invention
|
Adi centralizer. A centralizer for use in centralizing casing or other tubulars such as tubulars ... |
|
1999
|
Invention
|
Casing centralizer. A casing centraliser and assembly comprising a tubular and a centraliser, the... |
|
1998
|
Invention
|
Casing centraliser. A casing centraliser (10) includes an annular body (12) and a substantially c... |
|
1997
|
Invention
|
Gripping device. A gripping device (10) is described which has an inner member (14) and an outer ... |
|
1996
|
P/S
|
Metal tubular goods; pipes and tubes of metal; centralisers and centraliser locks; tubular centra... |
