| Patents for E21B 37 - Methods or apparatus for cleaning boreholes or wells (5,129) |
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| 01/10/2006 | US6983798 Methods and fluid compositions for depositing and removing filter cake in a well bore |
| 01/10/2006 | CA2178188C Inhibition of scale formation from oil well brines utilizing a slow release composition |
| 01/05/2006 | WO2006000742A1 System and method for monitoring and removing blockage in a downhole oil and gas recovery operation |
| 01/04/2006 | EP1534921B1 Gas hydrate inhibitors |
| 01/03/2006 | US6982008 Coiled tubing wellbore cleanout |
| 01/03/2006 | US6981553 Controlled downhole chemical injection |
| 01/03/2006 | CA2339592C Downhole scraper assembly |
| 12/29/2005 | WO2005124098A2 Magnet arrangement for use on a downhole tool |
| 12/29/2005 | US20050284625 System and method for monitoring and removing blockage in a downhole oil and gas recovery operation |
| 12/27/2005 | US6978841 Sand removal and device retrieval tool |
| 12/27/2005 | US6978838 Method for removing filter cake from injection wells |
| 12/22/2005 | WO2005120816A1 Downhole ultrasonic well cleaning device |
| 12/22/2005 | CA2566653A1 Downhole ultrasonic well cleaning device |
| 12/21/2005 | EP1523606B1 Method for completing injection wells |
| 12/20/2005 | US6977367 Providing a light cell in a wellbore |
| 12/18/2005 | CA2510240A1 Apparatus and method for agitating reservoir while pumping |
| 12/15/2005 | WO2005119004A1 Additives for hydrate inhibition in fluids gelled with viscoelastic surfactants |
| 12/15/2005 | US20050274524 Magnet arrangement for use on a downhole tool |
| 12/14/2005 | EP1327053B1 Method and pumping out means for improving the supply of water to a source or a water procurement well |
| 12/13/2005 | US6973972 non-chemical scale reduction during oil and gas production using a device having a sound transducer; the device can be used downhole and functions independently of an external power supply |
| 12/13/2005 | US6973971 Down hole well cleaning apparatus |
| 12/08/2005 | WO2005116399A1 Enhancement modifiers for gas hydrate inhibitors |
| 12/08/2005 | US20050269097 System and method for the mitigation of paraffin wax deposition from crude oil by using ultrasonic waves |
| 12/08/2005 | US20050269078 Downhole ultrasonic well cleaning device |
| 12/08/2005 | CA2565880A1 Enhancement modifiers for gas hydrate inhibitors |
| 12/01/2005 | CA2566367A1 Filter cake degradation compositions and associated methods |
| 11/30/2005 | CN1702292A Method for hot cleanout and paraffin removal of oil well |
| 11/24/2005 | WO2005111370A2 Improved flexible cup for downhole devices |
| 11/24/2005 | US20050261529 Enhancement modifiers for gas hydrate inhibitors |
| 11/24/2005 | US20050261137 Methods and fluid compositions for depositing and removing filter cake in a well bore |
| 11/24/2005 | US20050257934 Flow through subassembly for a downhole drill string and method for making same |
| 11/23/2005 | CN2742128Y Well flushing device for oil-water well |
| 11/23/2005 | CN2742127Y Oil cleaner for oil pumping rod |
| 11/22/2005 | US6966377 Providing a low pressure condition in a wellbore region |
| 11/22/2005 | US6966375 Downhole surge pressure reduction and filtering apparatus |
| 11/17/2005 | US20050252286 Method and system for reservoir characterization in connection with drilling operations |
| 11/16/2005 | CN2740772Y Oil pipe scraper for oil field |
| 11/15/2005 | US6964306 Manifold device and method of use for accessing a casing annulus of a well |
| 11/15/2005 | CA2384056C Borehole cleaning apparatus and method |
| 11/12/2005 | CA2811046A1 Method and system for reservoir characterization in connection with drilling operations |
| 11/12/2005 | CA2506991A1 Method and system for reservoir characterization in connection with drilling operations |
| 11/10/2005 | US20050247448 Flexible cup for downhole devices |
| 11/02/2005 | CN1690357A Openhole perforating device |
| 11/01/2005 | US6959762 Method and apparatus for formation damage removal |
| 11/01/2005 | CA2374857C A tractor for use in a bore |
| 10/27/2005 | US20050236016 Coiled tubing wellbore cleanout |
| 10/26/2005 | EP0638049B2 Process for preventing deposits in a structure's drainage system |
| 10/26/2005 | CN2736528Y Environmental protection paraffin removing vehicle for oil field |
| 10/25/2005 | US6958704 Permanent downhole, wireless, two-way telemetry backbone using redundant repeaters |
| 10/25/2005 | US6957709 Apparatus and method for cleaning and sealing a well borehole portion for formation evaluation |
| 10/25/2005 | CA2463808C Flameless hot oiler |
| 10/25/2005 | CA2280034C Tool and method for removing excess cement from the top of a liner after hanging and cementing thereof |
| 10/20/2005 | US20050230154 Downhole drill string having a collapsible subassembly |
| 10/19/2005 | CN2734989Y Mechanical logging cable scratcher |
| 10/12/2005 | EP1583887A1 Method and device for intensifying the permeability of ground layers close to bore holes and filter bodies and filter layers in wells and other production wells |
| 10/12/2005 | CN2732992Y Steam and water dual-purpose paraffin removing vehicle for oil field |
| 10/11/2005 | US6953086 Bi-directional traction apparatus |
| 10/06/2005 | WO2005093264A1 Apparatus and method for creating pulsating fluid flow, and method of manufacture for the apparatus |
| 10/06/2005 | US20050217867 Apparatus to allow a coiled tubing tractor to traverse a horizontal wellbore |
| 10/06/2005 | US20050217861 Apparatus to allow a coiled tubing tractor to traverse a horizontal wellbore |
| 10/06/2005 | US20050217856 System and method for monitoring and removing scale from a wellbore |
| 10/06/2005 | US20050217855 Method and a device for removing a hydrate plug |
| 10/06/2005 | US20050217854 Pressure-actuated perforation with automatic fluid circulation for immediate production and removal of debris |
| 10/06/2005 | US20050217853 Pressure-actuated perforation with continuous removal of debris |
| 10/06/2005 | US20050217851 Method for stimulation of liquid flow in a well |
| 10/05/2005 | CN2731085Y Hydraulic self-feeding speed adjustable rotary sand flushing deblocking device |
| 10/05/2005 | CN2730685Y Multi-function oil collection car |
| 10/01/2005 | CA2502496A1 Apparatus to allow a coiled tubing tractor to traverse a horizontal wellbore |
| 09/30/2005 | CA2502598A1 Openhole perforating |
| 09/29/2005 | US20050214147 Apparatus and method for creating pulsating fluid flow, and method of manufacture for the apparatus |
| 09/29/2005 | US20050210621 Vacuum excavation suction hose attachment |
| 09/28/2005 | EP1362160B1 Composition and method for inhibition of formation of gas hydrates |
| 09/28/2005 | CN2729302Y High-efficient cleaning anti-wax apparatus |
| 09/28/2005 | CN1220749C Solid wax-resisting scale inhibitor for well |
| 09/22/2005 | WO2005086799A2 Multi-fluid sparging |
| 09/22/2005 | US20050205261 System and method for remediating pipeline blockage |
| 09/22/2005 | US20050205252 Casing scraper |
| 09/22/2005 | US20050205251 Casing brush assembly |
| 09/21/2005 | EP1575716A2 Methods and associated devices for removing incrustations and biofilms in fluid systems |
| 09/21/2005 | CN2727385Y Thermal cleaning oil well packer with three functions |
| 09/14/2005 | CN1668828A Stimulation and injection system |
| 09/13/2005 | US6943340 Method and apparatus of providing an optical fiber along a power supply line |
| 09/13/2005 | US6942037 Process for mitigation of wellbore contaminants |
| 09/13/2005 | US6942036 Treating apparatus and method for expandable screen system |
| 09/09/2005 | CA2463148A1 Mainville in hole cleaner |
| 09/08/2005 | US20050194148 Multi-fluid sparging |
| 09/08/2005 | US20050194147 Increasing reaction efficiency of acetic acid |
| 09/07/2005 | EP1570154A2 Well bore cleaning and tubular circulating and flow-back apparatus |
| 09/06/2005 | US6939082 Subea pipeline blockage remediation method |
| 09/01/2005 | WO2005066458A3 Method for enancing the retention efficiency of treatment chemicals in subterranean formations |
| 08/30/2005 | US6935426 non-viscous fluid, having a heavy concentration of an appropriate breaker, is pumped into a well in front of viscosified fluid, such as a cross-linked polymeric fracturing fluid, to saturate permeable media with breaker agent; removes polymer cake |
| 08/25/2005 | WO2005078047A1 Drilling fluids with improved shale inhibition and methods of drilling in subterranean formations |
| 08/25/2005 | WO2005042905A3 A piggable flowline-riser system |
| 08/23/2005 | CA2272654C Additives for inhibiting gas hydrate formation |
| 08/23/2005 | CA2233710C Cleaning compositions for oil and gas wells, lines, casings, formations and equipment and methods of use |
| 08/17/2005 | CN2718205Y Plugging sucker rod centering paraffin scraper |
| 08/16/2005 | US6929068 Non-cryogenic production of nitrogen for on-site injection in well clean out |
| 08/11/2005 | WO2005073505A1 System and method for wellbore clearing |
| 08/11/2005 | WO2005073499A1 A collection device for drilling fluid |
| 08/11/2005 | WO2005073130A1 Use of polyaminothylenephosphonates as dispersing agents |