| Patents for E21B 33 - Sealing or packing boreholes or wells (33,564) |
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| 08/13/2009 | US20090200043 Vented packer element for downwell packing system |
| 08/13/2009 | US20090200042 Radially supported seal and method |
| 08/13/2009 | US20090200039 System and method for securing to a damaged wellhead |
| 08/13/2009 | US20090200038 Hydraulic connector apparatuses and methods of use with downhole tubulars |
| 08/13/2009 | US20090200029 Settable Compositions Comprising a Natural Pozzolan and Associated Methods |
| 08/13/2009 | US20090200028 Wellbore delivery apparatus |
| 08/13/2009 | CA2713769A1 Downhole seal |
| 08/13/2009 | CA2713653A1 Downhole seal |
| 08/12/2009 | EP2087199A2 Well tool including swellable material and integrated fluid for initiating swelling |
| 08/12/2009 | EP2087198A1 Casing make-up and running tool adapted for fluid and cement control |
| 08/12/2009 | EP2086762A2 Swellable packer construction for continuous or segmented tubing |
| 08/12/2009 | CN201288527Y Rotary boring blowout preventer for water injection well for oil production |
| 08/12/2009 | CN201288526Y Uni-rotation type anti-theft packing box |
| 08/12/2009 | CN101506465A Controlling the pressure within an annular volume of a wellbore |
| 08/12/2009 | CN101503955A Segmented well completion method and column jacket |
| 08/12/2009 | CN101503954A Water faucet for adjustable plugging device |
| 08/12/2009 | CN100526606C Method for extracting protruded coal-bed downward bedding long-borehole step-by-step covering area gas |
| 08/12/2009 | CN100526597C Air-filling well-drilling sealing device |
| 08/11/2009 | US7571777 Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell |
| 08/11/2009 | US7571773 Multiple ball launch assemblies and methods of launching multiple balls into a wellbore |
| 08/11/2009 | US7571765 Hydraulic open hole packer |
| 08/11/2009 | CA2469898C Well cementing compositions for cold environment |
| 08/11/2009 | CA2366096C Casing head connector with landing base |
| 08/11/2009 | CA2311275C Universal safety device and process for protecting a conduit |
| 08/06/2009 | WO2009097341A2 Launching tool for releasing cement plugs downhole |
| 08/06/2009 | WO2009097189A1 Well thermal insulation for formation sampling of viscous fluids |
| 08/06/2009 | US20090194947 Packer cup |
| 08/06/2009 | US20090194945 Energized composite metal to metal seal |
| 08/06/2009 | US20090194338 Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| 08/06/2009 | US20090194290 Control system for blowout preventer stack |
| 08/06/2009 | US20090194283 Chemical Activation for Cement Setting |
| 08/06/2009 | US20090194279 Downhole sampling tool and method for using same |
| 08/05/2009 | EP2084366A1 Downhole apparatus and support structure therefor |
| 08/05/2009 | EP2084365A1 Downhole apparatus and method |
| 08/05/2009 | EP2084363A1 Downhole apparatus and method |
| 08/05/2009 | EP2084362A1 Down hole apparatus and method |
| 08/05/2009 | EP1709289A4 Externally activated seal system for wellhead |
| 08/05/2009 | CN201284639Y Logging steel wire arranging oil scraper |
| 08/05/2009 | CN201284638Y Oil tube hanger |
| 08/05/2009 | CN201284637Y Seat seal tool of multifunctional casing tube sealer |
| 08/05/2009 | CN201284627Y Branching borehole connection device capable of expanding and sealing in case of oil or water |
| 08/05/2009 | CN101498205A Horizontal well washing valve blocking apparatus |
| 08/05/2009 | CN101498204A Balance type step-by-step releasable flushing packer |
| 08/05/2009 | CN101498203A System for downhole packing |
| 08/05/2009 | CN101498202A Swellable polymer material |
| 08/05/2009 | CN101498201A Oil dredge shearing sealing blowout preventer |
| 08/05/2009 | CN100523428C A method and apparatus for creating a cemented lateral junction system |
| 08/04/2009 | CA2509317C Method and apparatus for expanding and separating tubulars in a wellbore |
| 08/04/2009 | CA2466771C Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell |
| 08/04/2009 | CA2402162C Composite particles and methods of their use |
| 08/04/2009 | CA2401730C Controllable production well packer |
| 07/30/2009 | WO2009094662A2 Method for treating oil and gas wells |
| 07/30/2009 | WO2009093913A1 Device and method for isolating a section of a wellbore |
| 07/30/2009 | WO2009093912A1 A method and an apparatus for controlling a well barrier |
| 07/30/2009 | WO2009093911A1 A device in a combined wellhead/pipe string |
| 07/30/2009 | WO2009093199A1 Intervention system with dynamic seal |
| 07/30/2009 | WO2009052096A3 Water sensing adaptable in-flow control device and method of use |
| 07/30/2009 | US20090189354 Reciprocating-rod seal |
| 07/30/2009 | US20090188678 Float collar and method |
| 07/30/2009 | US20090188670 A salt comprising an acidic salt, a neutral salt, and/or a low basicity salt and a swellable clay volume increase; shsrinkage inhibition; volulme measured at atmospheric pressure of between 10-20% over volume of slurry; subterranean formations; oil wells; well bores |
| 07/30/2009 | US20090188665 Monitoring of Downhole Parameters and Tools Utilizing Fiber Optics |
| 07/30/2009 | CA2713396A1 Formation tester with fluid mobility enhancement to enable use of a low volume flow line for fluid sample collection and method of use thereof |
| 07/30/2009 | CA2713238A1 Method for treating oil and gas wells |
| 07/30/2009 | CA2651621A1 Chemical activation for cement setting |
| 07/29/2009 | EP2082114A1 An underwater apparatus for operating underwater equipment |
| 07/29/2009 | CN201280910Y Anti-clipping fracturing packer |
| 07/29/2009 | CN201280909Y Composite pressure suppression rotational flow tail tube suspension packer |
| 07/29/2009 | CN201280908Y Borehole log wellhead double-sealing blowout preventer |
| 07/29/2009 | CN201280907Y Polished rod lubricator of jack well |
| 07/29/2009 | CN101493001A Magnetic fluid polished rod sealer for oil production in oilfield |
| 07/28/2009 | US7566045 Hydraulic coupler |
| 07/28/2009 | US7565929 Degradable material assisted diversion |
| 07/28/2009 | CA2625281C Field development system and associated methods |
| 07/28/2009 | CA2592974C Apparatus and methods for completing a wellbore |
| 07/28/2009 | CA2529962C System for completing multiple well intervals |
| 07/28/2009 | CA2468741C Acid soluble, high fluid loss pill for lost circulation |
| 07/28/2009 | CA2366863C Selective zonal isolation within a slotted liner |
| 07/23/2009 | WO2009091935A1 Method and apparatus for in situ testing of gas flow controllers |
| 07/23/2009 | WO2009090367A1 Improved seal |
| 07/23/2009 | WO2009089622A1 System for pulse-injecting fluid into a borehole |
| 07/23/2009 | WO2009043901A3 Inflatable packer with energy and triggering section |
| 07/23/2009 | US20090183884 Method for sealing wellbore leakage and shutting-off of water producing zones |
| 07/23/2009 | US20090183882 Packer variable volume excluder and sampling method therefor |
| 07/23/2009 | US20090183881 Intervention system with dynamic seal |
| 07/23/2009 | US20090183880 Blowout preventer having modified hydraulic operator |
| 07/23/2009 | US20090183876 Control of the Properties of Cement Slurries With Optimized Polymers Combination |
| 07/23/2009 | US20090183875 Method and Apparatus to Set a Plug |
| 07/23/2009 | CA2712142A1 System for pulse-injecting fluid into a borehole |
| 07/22/2009 | EP1834064B1 Apparatus and method for reverse circulation cementing a casing in an open-hole wellbore |
| 07/22/2009 | CN201277005Y Sand-prevention water-injection packer |
| 07/22/2009 | CN201277004Y Steel wire rope paraffin-removal operation sealing system for self-spraying oil-gas mixing well |
| 07/22/2009 | CN201277003Y Hollow stem water-mixing wellhead device |
| 07/22/2009 | CN201277002Y Second-grade sealing device of well head packing kit |
| 07/22/2009 | CN101487384A Method for oil well water-shutoff by utilizing scleroglucan fermentation liquor |
| 07/22/2009 | CN100516453C Oil well intelligent anti-polluting device |
| 07/22/2009 | CN100516452C Downhole polymer plug and liner and methods employing same |
| 07/21/2009 | US7563750 Methods and compositions for the diversion of aqueous injection fluids in injection operations |
| 07/21/2009 | US7562712 Setting tool for hydraulically actuated devices |
| 07/21/2009 | US7562710 Method and a device for in situ formation of a seal in an annulus in a well |
| 07/21/2009 | US7562709 Gravel pack apparatus that includes a swellable element |