| Patents for E21B 35 - Methods or apparatus for preventing or extinguishing fires (324) |
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| 02/11/2015 | CN204152470U 一种废弃油井的防盗防火装置 One kind of abandoned oil well fire equipment theft |
| 02/11/2015 | CN204152464U 一种带有泡沫灭火器的泥浆净化装置 A slurry of purification unit with foam fire extinguisher |
| 01/08/2015 | US20150007974 Hydrocarbon resource heating apparatus including ferromagnetic transmission line and related methods |
| 12/10/2014 | CN204002711U 石油钻井用网络信息连接盒 Oil drilling Network Information junction box |
| 12/10/2014 | CN102797425B 煤层钻探风水联动雾化除尘、清洗装置 Feng Shui drilling coal linkage atomized dust, cleaning device |
| 07/16/2014 | EP2753789A1 Self extinguishing room for extinguishing oil and gas wells |
| 03/27/2014 | WO2014009712A3 Deluge system |
| 03/25/2014 | US8678082 Hydraulic oil well pumping apparatus |
| 12/25/2013 | CN102535929B Box type maritime work positive pressure explosion-proof room |
| 09/04/2013 | CN203175488U 油井灭火弹 Oil well fire bombs |
| 06/19/2013 | CN203008858U Quick release gear of anti-explosion box |
| 04/24/2013 | CN202900165U Fire-proof and fire extinguishing drilling tool for short hole grouting of fully mechanized caving face |
| 04/10/2013 | CN202866754U Explosion protection system of rubbish drilling rig |
| 03/27/2013 | CN202832388U Tempering prevention valve for gas drilling |
| 03/20/2013 | CN202810649U Mounting support of fire extinguisher of workover rig |
| 03/14/2013 | WO2013034046A1 Self extinguishing room for extinguishing oil and gas wells |
| 03/14/2013 | CA2847695A1 Self extinguishing room for extinguishing oil and gas wells |
| 03/13/2013 | CN202788756U Air pressure type anti-leakage oil extraction device |
| 02/06/2013 | CN102913191A Tempering-preventive valve for gas drilling |
| 01/30/2013 | CN202706952U Dedusting and cleaning device by wind-water linkage atomizing in coal seam drilling |
| 01/16/2013 | CN202673246U Fireproof fusible plug mechanism with blocking function |
| 01/16/2013 | CN202673244U Feedback quick shut-off mechanism |
| 01/16/2013 | CN202673218U Secret chamber hole control idling anti-theft lock and key |
| 12/26/2012 | CN102838974A Drilling flushing fluid for gangue dump |
| 11/28/2012 | CN102797425A Wind-water linked atomized dust removing and cleaning device for coal bed drilling exploration |
| 11/27/2012 | CA2565937C Continuous positive flow backflash prevention system |
| 10/03/2012 | CN102704892A Fire retarder special for emission of drilling combustible gases |
| 08/15/2012 | CN102635324A Hole-controlled idling antitheft lock of back room and key |
| 08/07/2012 | US8235107 Hydraulic oil well pumping apparatus |
| 07/25/2012 | CN202348180U Drilling four-precaution packaged technology device for coal mine |
| 07/04/2012 | CN202300360U 一种收气排污装置 One kind of close air sewage plant |
| 07/04/2012 | CN102535929A Box type maritime work positive pressure explosion-proof room |
| 06/27/2012 | CN202284456U 一种空气钻井井下阻火阀 An air drilling downhole valve Fire |
| 05/30/2012 | CN202249950U Frequency inverter parameter modification device for intrinsically safe coal mining machine |
| 01/11/2012 | CN202108473U Positive-pressure explosion-proof control box |
| 12/28/2011 | CN202090895U 橇装式钻机消防站 Skid-mounted drilling rig firehouse |
| 11/16/2011 | CN202039817U Water cannon operation protection blindage for oil well fire extinguishment |
| 10/19/2011 | CN202012331U Observation and protection shelter for oil well extinguishment |
| 09/14/2011 | CN201972664U Strong self-suction box-type diesel fire pump group for extinguishing fire in oil well |
| 09/07/2011 | CN201963277U 油气田专用氮气置换装置 Purged with nitrogen gas fields dedicated device |
| 08/24/2011 | CN201943660U 一种钻井可燃气排放专用阻火器 One kind of drilling gas emissions can be dedicated Zuhuo |
| 08/24/2011 | CN201943659U Protective shelter for well mouth cutting operation used in oil well fire extinguishing |
| 08/02/2011 | CA2465735C Flare stack safety system and method of use |
| 04/20/2011 | CN201802356U Petroleum drilling platform fire station |
| 02/08/2011 | US7882897 Device for limiting the ultimate consequences of a failure to bring under control a mass fire in a storage bin for hazardous materials |
| 12/21/2010 | US7854270 Inertization method for reducing the risk of fire |
| 09/22/2010 | CN201588604U Module structure used for ground gas collection of coal bed gas collecting station |
| 09/22/2010 | CN201588574U Downhole anti-extinguishing borehole pull-out device |
| 06/23/2010 | CN101748981A Underground fire-extinction preventing drilling device |
| 03/30/2010 | US7686083 Method and apparatus for cutting off a well |
| 12/16/2009 | CN201363096Y Drilling tool for coal pit fire extinguishing |
| 04/22/2009 | CN201225131Y Pry loading fireproof wall for well drilling |
| 04/02/2009 | DE102007043621A1 Method for implementing drilling, involves carrying out drilling in axial direction through drilling channel provided in partition wall, where over-pressure area for drilling is adjoined |
| 03/11/2009 | EP2032799A1 Method for coating a matrix with fire, water and frost-proof barrier layer as well as layer prepared by the method |
| 01/28/2009 | CN201187280Y Foam composite device for oil field fire protection |
| 01/07/2009 | EP2010820A2 Method and device for producing a gaseous medium comprising steam |
| 11/05/2008 | CN201144691Y Petroleum drilling parameters, image and fire-fighting alarm integrated apparatus |
| 10/16/2008 | US20080251263 Deformed pipe method of extinguishing oil fires |
| 06/26/2008 | WO2008034226A9 Fluid supply unit |
| 03/27/2008 | WO2008034226A1 Fluid supply unit |
| 03/27/2008 | CA2663686A1 Fluid supply unit |
| 01/30/2008 | CN201013349Y Self-elevating drilling rig distributed electrical control system |
| 01/10/2008 | WO2008004874A1 Method for coating a matrix with fire, water and frost-proof barrier layer as well as layer prepared by the method |
| 01/09/2008 | CN201003379Y Glue injection fire extinguishing-proof drilling tool for coal mine |
| 01/02/2008 | CN200999604Y Automatically reopening type air drilling down-hole extingiushment joint |
| 11/29/2007 | WO2007114775A3 Method and device for producing a gaseous medium comprising steam |
| 10/11/2007 | WO2007114775A2 Method and device for producing a gaseous medium comprising steam |
| 09/26/2007 | CN200952383Y Air drilling underwell fire-extinguishing valve |
| 07/25/2007 | CN2926484Y Safety under-well short joint for air drilling well |
| 07/17/2007 | US7243741 Separation of evolved gases from drilling fluids in a drilling operation |
| 01/02/2007 | US7156193 Continuous positive flow backflash prevention system |
| 03/21/2006 | CA2445836C Apparatus and method for operating an internal combustion engine to reduce free oxygen contained within engine exhaust gas |
| 02/08/2006 | CN2756822Y Safety cut-off device for oil-gas well |
| 12/15/2005 | WO2005119002A1 Continuous positive flow backflash prevention system |
| 12/15/2005 | DE10210331B4 Verfahren zur Verhinderung des Entstehens eines zündfähigen Gemisches bei einer in gasführende Hohlräume von abgeworfenen Abbaubereichen des Steinkohlenbergbaus reichende Tiefbohrung A method for preventing the development of an ignitable mixture in a gas-leading cavities of discarded mining areas of the coal industry reaching deep drilling |
| 12/08/2005 | US20050269137 Separation of evolved gases from drilling fluids in a drilling operation |
| 12/08/2005 | US20050269135 Continuous positive flow backflash prevention system |
| 11/10/2005 | US20050247450 Flame and Heat Resistant Oilfield Tools |
| 09/14/2005 | CN1667239A Down-hole fireproof valve for underbalanced drilling |
| 07/06/2005 | CN2707955Y Continuous miner having a movable cab |
| 03/17/2004 | EP0698175B1 Well plugging apparatus and method |
| 02/17/2004 | CA2160676C Well plugging apparatus and method |
| 12/23/2003 | US6666278 Oil well fire suppression device |
| 10/08/2003 | CN2578517Y Special fire retarder for drilling fuel gas discharge |
| 08/27/2003 | EP1157186B1 Explosion prevention system for internal turret mooring system |
| 08/07/2003 | US20030146004 Oil well fire suppression device |
| 05/06/2003 | CA2346824C Explosion prevention system for internal turret mooring system |
| 03/05/2003 | CN1102426C Process for rapidly preparing inertial gas in-situ |
| 10/09/2002 | CN1092276C Apparatus of valve for stopping oil and gas drilling rod |
| 05/08/2002 | CN1348525A Explosion prevention system for internal turret mooring system |
| 01/29/2002 | US6341572 Explosion prevention system for internal turret mooring system |
| 11/28/2001 | EP1157186A2 Explosion prevention system for internal turret mooring system |
| 09/24/2001 | CA2342054A1 Fire activated, fail safe, gate valve bonnet |
| 09/07/2001 | WO2000052293A9 Explosion prevention system for internal turret mooring system |
| 08/01/2001 | EP0698175A4 Well plugging apparatus and method |
| 08/01/2001 | CN1305866A Process for rapidly preparing inertial gas in-situ |
| 05/08/2001 | US6227226 Fire activated, fail safe, gate valve bonnet |
| 01/18/2001 | WO2000052293A3 Explosion prevention system for internal turret mooring system |
| 10/05/2000 | WO2000058600A1 Fire suppression apparatus for well drilling system |
| 09/08/2000 | WO2000052293A2 Explosion prevention system for internal turret mooring system |