| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
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| 06/30/2009 | US7552762 Method and apparatus to provide electrical connection in a wellhead for a downhole electrical device |
| 06/30/2009 | US7552631 Internal riser inspection device and methods of using same |
| 06/30/2009 | CA2648116A1 Drillable bridge plug |
| 06/30/2009 | CA2632812C Apparatus and method for installation of subsea well completion systems |
| 06/30/2009 | CA2508854C Valve within a control line |
| 06/25/2009 | WO2009079124A1 Safety device for retrieving component within wellhead |
| 06/25/2009 | WO2009079092A2 Nano-sized particles for formation fines fixation |
| 06/25/2009 | WO2009079081A1 Energized dynamic seal used in oil well equipment |
| 06/25/2009 | WO2009056839A3 Tool storage assembly |
| 06/25/2009 | US20090159299 Dual-stage valve straddle packer for selective stimulation of wells |
| 06/25/2009 | US20090159298 Methods and systems for completing a well with fluid tight lower completion |
| 06/25/2009 | US20090159293 Isolating tubing |
| 06/25/2009 | US20090159291 Telescopic joint mini control panel |
| 06/25/2009 | US20090159282 Methods for Introducing Pulsing to Cementing Operations |
| 06/25/2009 | US20090159281 Running bore-lining tubulars |
| 06/25/2009 | US20090159278 Single Packer System for Use in Heavy Oil Environments |
| 06/25/2009 | US20090159267 Methods and Materials for Subterranean Fluid Forming Barriers in Materials Surrounding Wells |
| 06/25/2009 | US20090159266 Actuating mechanism |
| 06/25/2009 | US20090159265 Packer-anchoring device |
| 06/25/2009 | US20090159261 Bird Bath Wellhead Cover |
| 06/25/2009 | CA2707516A1 Safety device for retrieving component within wellhead |
| 06/25/2009 | CA2702936A1 Nano-sized particles for formation fines fixation |
| 06/24/2009 | CN201262064Y Compression type glue barrel with shoulder protection function |
| 06/24/2009 | CN201262063Y Blowout preventer for pumping rod breakage |
| 06/24/2009 | CN201262062Y Blowout prevention controller in pipe |
| 06/24/2009 | CN201262061Y Steel wire pressing device of reel |
| 06/24/2009 | CN201262060Y Integral movable clamp for shaft mouth |
| 06/24/2009 | CN201262059Y Movable sealing shaft mouth for oil well operation |
| 06/24/2009 | CN201262058Y Blowout prevention system for oil well shaft mouth |
| 06/24/2009 | CN201262057Y Shaft mouth and polished rod sealing device for oil pumping machine |
| 06/24/2009 | CN201262056Y Sealing cleaning device for shaft mouth steel wire rope |
| 06/24/2009 | CN101466914A Time sequenced heating of multiple layers in a hydrocarbon containing formation |
| 06/24/2009 | CN101463717A Converse fast hole-sealing method of continuous water exit hole-drilling conduit method |
| 06/23/2009 | US7549480 Device for performing a downhole operation |
| 06/23/2009 | US7549479 Tubular flotation with pressurized fluid |
| 06/23/2009 | US7549476 Subsea wireline lubricator |
| 06/23/2009 | US7549475 Systems for actuating a downhole tool |
| 06/23/2009 | US7549474 prevent the swelling of an argillaceous subterranean; comprising a mud displacement fluid, surfanctant and a nonionic polyacrylamide; reduce water absorption in subterranean formations; oil wells |
| 06/23/2009 | CA2481800C A one trip drilling and casing cementing method |
| 06/23/2009 | CA2226070C Drilling compositions and methods |
| 06/22/2009 | CA2735449A1 Isolating tubing |
| 06/21/2009 | CA2634937A1 Seal cleaning and lubricating bearing assembly for a rotating flow diverter |
| 06/18/2009 | WO2009076614A2 Function spool |
| 06/18/2009 | WO2009074785A2 Sealing apparatus |
| 06/18/2009 | WO2009074780A2 Improved packing element |
| 06/18/2009 | WO2009074643A2 Method of creating a wellbore system |
| 06/18/2009 | WO2009074447A1 Copolymer based on a compound comprising sulfonic acid |
| 06/18/2009 | WO2009042121A3 Externally activated seal system for wellhead |
| 06/18/2009 | US20090151960 Method and Apparatus for Sealing and Cementing a Wellbore |
| 06/18/2009 | US20090151957 Zonal Isolation of Telescoping Perforation Apparatus with Memory Based Material |
| 06/18/2009 | US20090151934 Top drive system |
| 06/18/2009 | US20090151929 Method and Device for Cementing a Well or a Pipe |
| 06/18/2009 | CA2708728A1 Improved packing element |
| 06/18/2009 | CA2708715A1 Sealing apparatus |
| 06/18/2009 | CA2708482A1 Squeeze composition for restoring isolation |
| 06/18/2009 | CA2704432A1 Copolymer based on a compound comprising sulfonic acid |
| 06/17/2009 | EP2069606A2 Method and apparatus for perforating and isolating perforations in a wellbore |
| 06/17/2009 | CN201258721Y Multifunction floating hoop |
| 06/17/2009 | CN201258720Y Self-expansion bonding packer |
| 06/17/2009 | CN201258719Y 压裂封隔器 Fracturing packer |
| 06/17/2009 | CN201258718Y Downhole automatic blowout preventer for gas well |
| 06/17/2009 | CN201258717Y 卡箍防盗装置 Clamps anti-theft device |
| 06/17/2009 | CN201258716Y Wellhead late jack |
| 06/17/2009 | CN201258715Y Wellhead sealing device for borehole log |
| 06/17/2009 | CN201258714Y Wellhead late jack |
| 06/17/2009 | CN201258713Y Novel wellhead blowout preventer |
| 06/17/2009 | CN101460700A Packer sealing element with shape memory material |
| 06/16/2009 | US7546871 Downhole tool |
| 06/11/2009 | WO2009073531A1 An improved swellable material and method |
| 06/11/2009 | WO2009073373A2 Self-boosting wedge tubing-to-casing seal |
| 06/11/2009 | WO2009073357A2 High differential shifting tool |
| 06/11/2009 | WO2009071944A1 Leak sealing apparatus |
| 06/11/2009 | WO2009050503A3 Anchoring device |
| 06/11/2009 | US20090146381 Turbulent flow tool |
| 06/11/2009 | US20090145614 Apparatus for Controlling Slip Deployment in a Downhole Device |
| 06/11/2009 | US20090145593 Snubber Spool With Detachable Base Plates |
| 06/11/2009 | CA2707179A1 Leak sealing apparatus |
| 06/10/2009 | EP2067925A2 Downhole Seal Element Formed From a Nanocomposite Material |
| 06/10/2009 | CN201254969Y Blowout prevention controller |
| 06/10/2009 | CN201254968Y Horizontal well repeatedly adjustable mechanical water research and water shut off pipe string |
| 06/10/2009 | CN201254967Y Platform wellhead blowout preventer mobile foundation apparatus |
| 06/09/2009 | US7544642 Zeolite-containing remedial compositions |
| 06/09/2009 | US7544640 Spacer fluid; cement composition; well completion; mixture of zeolite with carrier fluid |
| 06/09/2009 | US7543652 Subsurface annular safety barrier |
| 06/09/2009 | US7543642 Cement compositions containing flexible, compressible beads and methods of cementing in subterranean formations |
| 06/09/2009 | US7543637 Methods for expanding tubular strings and isolating subterranean zones |
| 06/09/2009 | US7543634 Method and apparatus for wellbore fluid treatment |
| 06/09/2009 | CA2574510C Cementing methods and systems for initiating fluid flow with reduced pumping pressure |
| 06/05/2009 | CA2645948A1 High velocity string for well pump and method for producing well fluid |
| 06/04/2009 | WO2009070656A2 Provision of viscous compositions below ground |
| 06/04/2009 | WO2009070401A1 Self-sealing chemical injection line coupling |
| 06/04/2009 | WO2009070400A1 Self-sealing hydraulic control line coupling |
| 06/04/2009 | WO2009070374A1 Swellable compositions and methods and devices for controlling them |
| 06/04/2009 | WO2009070175A1 Screened valve system for selective well stimulation and control |
| 06/04/2009 | WO2009069057A1 Aqueous two-phase emulsion gel systems for zone isolation |
| 06/04/2009 | WO2009052051A3 Downhole tubular sealing system |
| 06/04/2009 | WO2009050030A3 Device for controlling an inflatable tool used to treat a well or pipeline |
| 06/04/2009 | WO2009040561A3 Choke assembly |
| 06/04/2009 | WO2008155654A3 Hydrocarbon recovery drill string apparatus, subterranean hydrocarbon recovery drilling methods, and subterranean hydrocarbon recovery methods |
| 06/04/2009 | US20090139720 Downhole valve assembly |